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95
premake5.lua
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@ -44,50 +44,6 @@ project "gtest"
filter "system:macosx"
pic "on"
project "benchmark"
location "build"
kind "StaticLib"
language "C++"
cppdialect "C++20"
staticruntime "on"
targetdir ("bin/" .. outputdir .. "/output")
objdir ("bin/" .. outputdir .. "/intermediate")
files {
"thirdparty/benchmark/src/**.cc",
}
removefiles {
"thirdparty/benchmark/src/benchmark_main.cc",
}
includedirs {
"thirdparty/benchmark/include",
"thirdparty/benchmark/src",
}
defines { "BENCHMARK_STATIC_DEFINE", "HAVE_STD_REGEX" }
filter "configurations:debug"
runtime "Debug"
symbols "on"
optimize "off"
filter "configurations:release"
runtime "Release"
symbols "on"
optimize "Speed"
filter "system:windows"
systemversion "latest"
filter "system:linux"
pic "on"
filter "system:macosx"
pic "on"
project "gtest_main"
location "build"
kind "StaticLib"
@ -206,54 +162,3 @@ project "tenvex_tests"
filter "toolset:gcc or toolset:clang"
buildoptions { "-msse4.1" }
filter {}
project "tenvex_bench"
location "build"
kind "ConsoleApp"
language "C++"
cppdialect "C++20"
staticruntime "on"
targetdir ("bin/" .. outputdir .. "/output")
objdir ("bin/" .. outputdir .. "/intermediate")
files {
"src/benchmarks/**.cpp",
}
includedirs {
"src/tenvex",
"thirdparty/benchmark/include",
}
links { "benchmark" }
defines { "BENCHMARK_STATIC_DEFINE" }
filter "configurations:debug"
runtime "Debug"
symbols "on"
optimize "off"
defines { "TENVEX_DEBUG" }
filter "configurations:release"
runtime "Release"
symbols "on"
optimize "Speed"
defines { "TENVEX_RELEASE" }
filter "system:windows"
systemversion "latest"
links { "Shlwapi" }
filter "system:linux"
pic "on"
links { "pthread" }
filter "system:macosx"
pic "on"
filter "toolset:gcc or toolset:clang"
buildoptions { "-msse4.1" }
filter {}

3
src/benchmarks/bench_main.cpp
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@ -1,3 +0,0 @@
#include <benchmark/benchmark.h>
BENCHMARK_MAIN();

135
src/benchmarks/bench_vec4.cpp
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@ -1,135 +0,0 @@
#include "tenvex.h"
#include <benchmark/benchmark.h>
#include <vector>
#include <random>
#include <smmintrin.h>
using namespace tnvx;
// Runtime data so nothing folds to a compile-time constant.
static std::vector<vec4> make_vecs(int n, unsigned seed)
{
std::mt19937 rng(seed);
std::uniform_real_distribution<float> d(-1.0f, 1.0f);
std::vector<vec4> v;
v.reserve(n);
for (int i = 0; i < n; ++i)
v.push_back(vec4 { d(rng), d(rng), d(rng), 0.0f });
return v;
}
// =====================================================================
// LATENCY: each iteration depends on the previous result (serial chain).
// This is the metric for scattered everyday math: the result is needed
// before moving on.
// =====================================================================
static void BM_Dot3_Latency(benchmark::State& state)
{
vec4 a { 1.0f, 2.0f, 3.0f, 0.0f };
vec4 b { 0.5f, 0.5f, 0.5f, 0.0f };
float acc = 0.0f;
for (auto _ : state)
{
vec4 bb = b + vec4 { acc, 0.0f, 0.0f, 0.0f }; // depends on previous result
float d = dot3(a, bb);
acc = d * 1e-7f; // feedback = dependency chain
benchmark::DoNotOptimize(acc);
}
}
BENCHMARK(BM_Dot3_Latency);
static void BM_Norm3_Latency(benchmark::State& state)
{
vec4 v { 1.0f, 2.0f, 3.0f, 1.0f };
for (auto _ : state)
{
v = norm3(v) + vec4 { 1e-3f, 2e-3f, 3e-3f, 0.0f }; // chain through v
benchmark::DoNotOptimize(v);
}
}
BENCHMARK(BM_Norm3_Latency);
// =====================================================================
// THROUGHPUT: independent inputs, no cross-iteration dependency, so the
// CPU can pipeline. Contrast to latency.
// =====================================================================
static void BM_Dot3_Throughput(benchmark::State& state)
{
const auto a = make_vecs(1024, 1);
const auto b = make_vecs(1024, 2);
std::size_t i = 0;
for (auto _ : state)
{
float d = dot3(a[i], b[i]);
benchmark::DoNotOptimize(d);
i = (i + 1) & 1023;
}
}
BENCHMARK(BM_Dot3_Throughput);
// =====================================================================
// Compound expression: tenvex vs hand-written intrinsics.
// If the numbers are roughly equal, the abstraction is zero-cost.
// =====================================================================
static void BM_Compound_tenvex(benchmark::State& state)
{
const auto va = make_vecs(1024, 1);
const auto vb = make_vecs(1024, 2);
const auto vc = make_vecs(1024, 3);
std::size_t i = 0;
for (auto _ : state)
{
vec4 r = norm3(va[i] + vb[i] * 2.0f) * dot3(vb[i], vc[i]) + vc[i] * 3.0f;
benchmark::DoNotOptimize(r);
i = (i + 1) & 1023;
}
}
BENCHMARK(BM_Compound_tenvex);
static __m128 dp3_raw(__m128 a, __m128 b) { return _mm_dp_ps(a, b, 0x7F); }
static __m128 norm3_raw(__m128 v)
{
__m128 len = _mm_sqrt_ps(dp3_raw(v, v));
return _mm_blend_ps(_mm_div_ps(v, len), v, 0b1000);
}
static void BM_Compound_intrinsics(benchmark::State& state)
{
const auto va = make_vecs(1024, 1);
const auto vb = make_vecs(1024, 2);
const auto vc = make_vecs(1024, 3);
std::size_t i = 0;
for (auto _ : state)
{
__m128 a = va[i].eval(), b = vb[i].eval(), c = vc[i].eval();
__m128 t = norm3_raw(_mm_add_ps(a, _mm_mul_ps(b, _mm_set1_ps(2.0f))));
__m128 d = dp3_raw(b, c);
__m128 r = _mm_add_ps(_mm_mul_ps(t, d), _mm_mul_ps(c, _mm_set1_ps(3.0f)));
benchmark::DoNotOptimize(r);
i = (i + 1) & 1023;
}
}
BENCHMARK(BM_Compound_intrinsics);
// =====================================================================
// Gameplay-style query: do two units face roughly the same way?
// Latency-bound - the answer is needed before branching on it.
// =====================================================================
static void BM_FacingSameWay(benchmark::State& state)
{
vec4 fa = norm3(vec4 { 1.0f, 0.0f, 0.2f, 0.0f });
vec4 fb = vec4 { 0.9f, 0.1f, 0.1f, 0.0f };
float jitter = 0.0f;
for (auto _ : state)
{
vec4 f = norm3(fb + vec4 { jitter, 0.0f, 0.0f, 0.0f });
float c = dot3(fa, f);
bool same = c > 0.95f;
jitter = c * 1e-6f;
benchmark::DoNotOptimize(same);
}
}
BENCHMARK(BM_FacingSameWay);

1
thirdparty/benchmark/.bazelversion vendored
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@ -1 +0,0 @@
8.2.1

5
thirdparty/benchmark/.clang-format vendored
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@ -1,5 +0,0 @@
---
Language: Cpp
BasedOnStyle: Google
PointerAlignment: Left
...

37
thirdparty/benchmark/.clang-tidy vendored
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@ -1,37 +0,0 @@
---
Checks: >
abseil-*,
bugprone-*,
clang-analyzer-*,
cppcoreguidelines-*,
google-*,
misc-*,
performance-*,
readability-*,
-clang-analyzer-deadcode*,
-clang-analyzer-optin*,
-readability-identifier-length
WarningsAsErrors: ''
HeaderFilterRegex: ''
FormatStyle: none
CheckOptions:
llvm-else-after-return.WarnOnConditionVariables: 'false'
modernize-loop-convert.MinConfidence: reasonable
modernize-replace-auto-ptr.IncludeStyle: llvm
cert-str34-c.DiagnoseSignedUnsignedCharComparisons: 'false'
google-readability-namespace-comments.ShortNamespaceLines: '10'
cert-err33-c.CheckedFunctions: '::aligned_alloc;::asctime_s;::at_quick_exit;::atexit;::bsearch;::bsearch_s;::btowc;::c16rtomb;::c32rtomb;::calloc;::clock;::cnd_broadcast;::cnd_init;::cnd_signal;::cnd_timedwait;::cnd_wait;::ctime_s;::fclose;::fflush;::fgetc;::fgetpos;::fgets;::fgetwc;::fopen;::fopen_s;::fprintf;::fprintf_s;::fputc;::fputs;::fputwc;::fputws;::fread;::freopen;::freopen_s;::fscanf;::fscanf_s;::fseek;::fsetpos;::ftell;::fwprintf;::fwprintf_s;::fwrite;::fwscanf;::fwscanf_s;::getc;::getchar;::getenv;::getenv_s;::gets_s;::getwc;::getwchar;::gmtime;::gmtime_s;::localtime;::localtime_s;::malloc;::mbrtoc16;::mbrtoc32;::mbsrtowcs;::mbsrtowcs_s;::mbstowcs;::mbstowcs_s;::memchr;::mktime;::mtx_init;::mtx_lock;::mtx_timedlock;::mtx_trylock;::mtx_unlock;::printf_s;::putc;::putwc;::raise;::realloc;::remove;::rename;::scanf;::scanf_s;::setlocale;::setvbuf;::signal;::snprintf;::snprintf_s;::sprintf;::sprintf_s;::sscanf;::sscanf_s;::strchr;::strerror_s;::strftime;::strpbrk;::strrchr;::strstr;::strtod;::strtof;::strtoimax;::strtok;::strtok_s;::strtol;::strtold;::strtoll;::strtoul;::strtoull;::strtoumax;::strxfrm;::swprintf;::swprintf_s;::swscanf;::swscanf_s;::thrd_create;::thrd_detach;::thrd_join;::thrd_sleep;::time;::timespec_get;::tmpfile;::tmpfile_s;::tmpnam;::tmpnam_s;::tss_create;::tss_get;::tss_set;::ungetc;::ungetwc;::vfprintf;::vfprintf_s;::vfscanf;::vfscanf_s;::vfwprintf;::vfwprintf_s;::vfwscanf;::vfwscanf_s;::vprintf_s;::vscanf;::vscanf_s;::vsnprintf;::vsnprintf_s;::vsprintf;::vsprintf_s;::vsscanf;::vsscanf_s;::vswprintf;::vswprintf_s;::vswscanf;::vswscanf_s;::vwprintf_s;::vwscanf;::vwscanf_s;::wcrtomb;::wcschr;::wcsftime;::wcspbrk;::wcsrchr;::wcsrtombs;::wcsrtombs_s;::wcsstr;::wcstod;::wcstof;::wcstoimax;::wcstok;::wcstok_s;::wcstol;::wcstold;::wcstoll;::wcstombs;::wcstombs_s;::wcstoul;::wcstoull;::wcstoumax;::wcsxfrm;::wctob;::wctrans;::wctype;::wmemchr;::wprintf_s;::wscanf;::wscanf_s;'
cert-oop54-cpp.WarnOnlyIfThisHasSuspiciousField: 'false'
cert-dcl16-c.NewSuffixes: 'L;LL;LU;LLU'
google-readability-braces-around-statements.ShortStatementLines: '1'
cppcoreguidelines-non-private-member-variables-in-classes.IgnoreClassesWithAllMemberVariablesBeingPublic: 'true'
google-readability-namespace-comments.SpacesBeforeComments: '2'
modernize-loop-convert.MaxCopySize: '16'
modernize-pass-by-value.IncludeStyle: llvm
modernize-use-nullptr.NullMacros: 'NULL'
llvm-qualified-auto.AddConstToQualified: 'false'
modernize-loop-convert.NamingStyle: CamelCase
llvm-else-after-return.WarnOnUnfixable: 'false'
google-readability-function-size.StatementThreshold: '800'
...

1
thirdparty/benchmark/.clang-tidy.ignore vendored
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@ -1 +0,0 @@
.*third_party/.*

32
thirdparty/benchmark/.github/ISSUE_TEMPLATE/bug_report.md vendored
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@ -1,32 +0,0 @@
---
name: Bug report
about: Create a report to help us improve
title: "[BUG]"
labels: ''
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
**System**
Which OS, compiler, and compiler version are you using:
- OS:
- Compiler and version:
**To reproduce**
Steps to reproduce the behavior:
1. sync to commit ...
2. cmake/bazel...
3. make ...
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Additional context**
Add any other context about the problem here.

20
thirdparty/benchmark/.github/ISSUE_TEMPLATE/feature_request.md vendored
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@ -1,20 +0,0 @@
---
name: Feature request
about: Suggest an idea for this project
title: "[FR]"
labels: ''
assignees: ''
---
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.

11
thirdparty/benchmark/.github/dependabot.yml vendored
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@ -1,11 +0,0 @@
version: 2
updates:
- package-ecosystem: github-actions
directory: /
schedule:
interval: daily
- package-ecosystem: pip
directory: /tools
schedule:
interval: daily

12
thirdparty/benchmark/.github/install_bazel.sh vendored
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@ -1,12 +0,0 @@
if ! bazel version; then
arch=$(uname -m)
if [ "$arch" == "aarch64" ]; then
arch="arm64"
fi
echo "Downloading $arch Bazel binary from GitHub releases."
curl -L -o $HOME/bin/bazel --create-dirs "https://github.com/bazelbuild/bazel/releases/download/8.2.0/bazel-8.2.0-linux-$arch"
chmod +x $HOME/bin/bazel
else
# Bazel is installed for the correct architecture
exit 0
fi

35
thirdparty/benchmark/.github/libcxx-setup.sh vendored
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@ -1,35 +0,0 @@
#!/usr/bin/env bash
set -e
# Checkout LLVM sources
git clone --filter=blob:none --depth=1 --branch llvmorg-19.1.6 --no-checkout https://github.com/llvm/llvm-project.git llvm-project
cd llvm-project
git sparse-checkout set --cone
git checkout llvmorg-19.1.6
git sparse-checkout set cmake llvm/cmake runtimes libcxx libcxxabi
cd ..
## Setup libc++ options
if [ -z "$BUILD_32_BITS" ]; then
export BUILD_32_BITS=OFF && echo disabling 32 bit build
fi
## Build and install libc++ (Use unstable ABI for better sanitizer coverage)
mkdir llvm-build && cd llvm-build
cmake -GNinja \
-DCMAKE_C_COMPILER=${CC} \
-DCMAKE_CXX_COMPILER=${CXX} \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX=/usr \
-DLIBCXX_ABI_UNSTABLE=OFF \
-DLLVM_USE_SANITIZER=${LIBCXX_SANITIZER} \
-DLLVM_BUILD_32_BITS=${BUILD_32_BITS} \
-DLIBCXXABI_USE_LLVM_UNWINDER=OFF \
-DLLVM_INCLUDE_TESTS=OFF \
-DLIBCXX_INCLUDE_TESTS=OFF \
-DLIBCXX_INCLUDE_BENCHMARKS=OFF \
-DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi' \
../llvm-project/runtimes/
cmake --build . -- cxx cxxabi
cd ..

40
thirdparty/benchmark/.github/workflows/bazel.yml vendored
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@ -1,40 +0,0 @@
name: bazel
on:
push: {}
pull_request: {}
env:
CMAKE_GENERATOR: Ninja
permissions:
contents: read
jobs:
build_and_test_default:
name: bazel.${{ matrix.os }}
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: mount bazel cache
uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
env:
cache-name: bazel-cache
with:
path: "~/.cache/bazel"
key: ${{ env.cache-name }}-${{ matrix.os }}-${{ github.ref }}
restore-keys: |
${{ env.cache-name }}-${{ matrix.os }}-main
- name: build
run: |
bazel build //:benchmark //:benchmark_main //test/...
- name: test
run: |
bazel test --test_output=all //test/...

49
thirdparty/benchmark/.github/workflows/build-and-test-min-cmake.yml vendored
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@ -1,49 +0,0 @@
name: build-and-test-min-cmake
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
env:
CMAKE_GENERATOR: Ninja
jobs:
job:
name: ${{ matrix.os }}.min-cmake
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
os: [ubuntu-latest, macos-latest]
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- uses: lukka/get-cmake@591817e96fcad43505fb4eae36172462abb3a42e # latest
with:
cmakeVersion: 3.13.0
- name: create build environment
run: cmake -E make_directory ${{ runner.workspace }}/_build
- name: setup cmake initial cache
run: touch compiler-cache.cmake
- name: configure cmake
env:
CXX: ${{ matrix.compiler }}
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: >
cmake -C ${{ github.workspace }}/compiler-cache.cmake
$GITHUB_WORKSPACE
-DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON
-DCMAKE_CXX_VISIBILITY_PRESET=hidden
-DCMAKE_VISIBILITY_INLINES_HIDDEN=ON
- name: build
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: cmake --build .

57
thirdparty/benchmark/.github/workflows/build-and-test-perfcounters.yml vendored
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@ -1,57 +0,0 @@
name: build-and-test-perfcounters
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
env:
CMAKE_GENERATOR: Ninja
permissions:
contents: read
jobs:
job:
# TODO(dominic): Extend this to include compiler and set through env: CC/CXX.
name: ${{ matrix.os }}.${{ matrix.build_type }}
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
os: [ubuntu-latest]
build_type: ['Release', 'Debug']
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: install libpfm
run: |
sudo apt update
sudo apt -y install libpfm4-dev
- name: create build environment
run: cmake -E make_directory ${{ runner.workspace }}/_build
- name: configure cmake
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: >
cmake $GITHUB_WORKSPACE
-DBENCHMARK_ENABLE_LIBPFM=1
-DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON
-DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
- name: build
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: cmake --build . --config ${{ matrix.build_type }}
# Skip testing, for now. It seems perf_event_open does not succeed on the
# hosting machine, very likely a permissions issue.
# TODO(mtrofin): Enable test.
# - name: test
# shell: bash
# working-directory: ${{ runner.workspace }}/_build
# run: ctest -C ${{ matrix.build_type }} --rerun-failed --output-on-failure

151
thirdparty/benchmark/.github/workflows/build-and-test.yml vendored
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@ -1,151 +0,0 @@
name: build-and-test
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
env:
CMAKE_GENERATOR: Ninja
jobs:
# TODO: add 32-bit builds (g++ and clang++) for ubuntu
# (requires g++-multilib and libc6:i386)
# TODO: add coverage build (requires lcov)
# TODO: add clang + libc++ builds for ubuntu
job:
name: ${{ matrix.os }}.${{ matrix.build_type }}.${{ matrix.lib }}.${{ matrix.compiler }}
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
os: [ubuntu-24.04, ubuntu-22.04, ubuntu-24.04-arm, macos-latest]
build_type: ['Release', 'Debug']
compiler: ['g++', 'clang++']
lib: ['shared', 'static']
steps:
- name: Install dependencies (macos)
if: runner.os == 'macOS'
run: brew install ninja
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: build
uses: threeal/cmake-action@725d1314ccf9ea922805d7e3f9d9bcbca892b406 # v2.1.0
with:
build-dir: ${{ runner.workspace }}/_build
cxx-compiler: ${{ matrix.compiler }}
options: |
BENCHMARK_DOWNLOAD_DEPENDENCIES=ON
BUILD_SHARED_LIBS=${{ matrix.lib == 'shared' }}
CMAKE_BUILD_TYPE=${{ matrix.build_type }}
CMAKE_CXX_COMPILER=${{ matrix.compiler }}
CMAKE_CXX_VISIBILITY_PRESET=hidden
CMAKE_VISIBILITY_INLINES_HIDDEN=ON
- name: test
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: ctest -C ${{ matrix.build_type }} -VV
msvc:
name: ${{ matrix.os }}.${{ matrix.build_type }}.${{ matrix.lib }}.${{ matrix.msvc }}
runs-on: ${{ matrix.os }}
defaults:
run:
shell: powershell
strategy:
fail-fast: false
matrix:
msvc:
- VS-17-2025
- VS-17-2022
build_type:
- Debug
- Release
lib:
- shared
- static
include:
- msvc: VS-17-2025
os: windows-2025
generator: 'Visual Studio 17 2022'
- msvc: VS-17-2022
os: windows-2022
generator: 'Visual Studio 17 2022'
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- uses: lukka/get-cmake@591817e96fcad43505fb4eae36172462abb3a42e # latest
- name: configure cmake
run: >
cmake -S . -B ${{ runner.workspace }}/_build/
-G "${{ matrix.generator }}"
-DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON
-DBUILD_SHARED_LIBS=${{ matrix.lib == 'shared' }}
- name: build
run: cmake --build ${{ runner.workspace }}/_build/ --config ${{ matrix.build_type }}
- name: test
run: ctest --test-dir ${{ runner.workspace }}/_build/ -C ${{ matrix.build_type }} -VV
msys2:
name: ${{ matrix.os }}.${{ matrix.build_type }}.${{ matrix.lib }}.${{ matrix.msys2.msystem }}
runs-on: ${{ matrix.os }}
defaults:
run:
shell: msys2 {0}
strategy:
fail-fast: false
matrix:
os: [ windows-latest ]
msys2:
- { msystem: MINGW64, arch: x86_64, family: GNU, compiler: g++ }
- { msystem: CLANG64, arch: x86_64, family: LLVM, compiler: clang++ }
- { msystem: UCRT64, arch: x86_64, family: GNU, compiler: g++ }
build_type:
- Debug
- Release
lib:
- shared
- static
steps:
- name: setup msys2
uses: msys2/setup-msys2@cafece8e6baf9247cf9b1bf95097b0b983cc558d # v2.31.0
with:
cache: false
msystem: ${{ matrix.msys2.msystem }}
update: true
install: >-
git
base-devel
pacboy: >-
gcc:p
clang:p
cmake:p
ninja:p
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
# NOTE: we can't use cmake actions here as we need to do everything in msys2 shell.
- name: configure cmake
env:
CXX: ${{ matrix.msys2.compiler }}
run: >
cmake -S . -B _build/
-GNinja
-DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON
-DBUILD_SHARED_LIBS=${{ matrix.lib == 'shared' }}
- name: build
run: cmake --build _build/ --config ${{ matrix.build_type }}
- name: test
working-directory: _build
run: ctest -C ${{ matrix.build_type }} -VV

22
thirdparty/benchmark/.github/workflows/clang-format-lint.yml vendored
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@ -1,22 +0,0 @@
name: clang-format-lint
on:
push: {}
pull_request: {}
env:
CMAKE_GENERATOR: Ninja
permissions:
contents: read
jobs:
job:
name: check-clang-format
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- uses: DoozyX/clang-format-lint-action@bcb4eb2cb0d707ee4f3e5cc3b456eb075f12cf73 # v0.20
with:
source: './include/benchmark ./src ./test ./bindings'
clangFormatVersion: 18

44
thirdparty/benchmark/.github/workflows/clang-tidy-lint.yml vendored
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@ -1,44 +0,0 @@
name: clang-tidy
on:
push: {}
pull_request: {}
env:
CMAKE_GENERATOR: Ninja
permissions:
contents: read
jobs:
job:
name: run-clang-tidy
runs-on: ubuntu-latest
strategy:
fail-fast: false
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: install clang-tidy
run: sudo apt update && sudo apt -y install clang-tidy
- name: create build environment
run: cmake -E make_directory ${{ github.workspace }}/_build
- name: configure cmake
shell: bash
working-directory: ${{ github.workspace }}/_build
run: >
cmake $GITHUB_WORKSPACE
-DBENCHMARK_ENABLE_ASSEMBLY_TESTS=OFF
-DBENCHMARK_ENABLE_LIBPFM=OFF
-DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON
-DCMAKE_C_COMPILER=clang
-DCMAKE_CXX_COMPILER=clang++
-DCMAKE_EXPORT_COMPILE_COMMANDS=ON
-DGTEST_COMPILE_COMMANDS=OFF
- name: run
shell: bash
working-directory: ${{ github.workspace }}/_build
run: run-clang-tidy -config-file=$GITHUB_WORKSPACE/.clang-tidy

34
thirdparty/benchmark/.github/workflows/doxygen.yml vendored
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@ -1,34 +0,0 @@
name: doxygen
on:
push:
branches: [main]
pull_request:
branches: [main]
env:
CMAKE_GENERATOR: Ninja
permissions:
contents: read
jobs:
build-and-deploy:
name: Build HTML documentation
runs-on: ubuntu-latest
steps:
- name: Fetching sources
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: Installing build dependencies
run: |
sudo apt update
sudo apt install doxygen gcc git
- name: Creating build directory
run: mkdir build
- name: Building HTML documentation with Doxygen
run: |
cmake -S . -B build -DBENCHMARK_ENABLE_TESTING:BOOL=OFF -DBENCHMARK_ENABLE_DOXYGEN:BOOL=ON -DBENCHMARK_INSTALL_DOCS:BOOL=ON
cmake --build build --target benchmark_doxygen

27
thirdparty/benchmark/.github/workflows/ossf.yml vendored
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@ -1,27 +0,0 @@
name: OSSF Scorecard Weekly
on:
schedule:
- cron: '0 0 * * 0' # Runs every Sunday at midnight UTC
workflow_dispatch:
permissions:
contents: read
jobs:
ossf-scorecard:
# To write a badge
permissions:
id-token: write
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: Run analysis
uses: ossf/scorecard-action@4eaacf0543bb3f2c246792bd56e8cdeffafb205a # v2.4.3
with:
publish_results: true
results_file: ossf_scorecard.json
results_format: json

22
thirdparty/benchmark/.github/workflows/pre-commit.yml vendored
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@ -1,22 +0,0 @@
name: python + Bazel pre-commit checks
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
jobs:
pre-commit:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
with:
persist-credentials: false
- name: Install uv
uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
with:
python-version: 3.12
- name: Run pre-commit checks
run: uv run --only-group=dev pre-commit run --all-files --verbose --show-diff-on-failure

97
thirdparty/benchmark/.github/workflows/sanitizer.yml vendored
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@ -1,97 +0,0 @@
name: sanitizer
on:
push: {}
pull_request: {}
env:
CMAKE_GENERATOR: Ninja
UBSAN_OPTIONS: "print_stacktrace=1"
jobs:
job:
name: ${{ matrix.sanitizer }}.${{ matrix.build_type }}
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
build_type: ['Debug', 'RelWithDebInfo']
sanitizer: ['asan', 'ubsan', 'tsan', 'msan']
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: configure msan env
if: matrix.sanitizer == 'msan'
run: |
echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=memory -fsanitize-memory-track-origins" >> $GITHUB_ENV
echo "LIBCXX_SANITIZER=MemoryWithOrigins" >> $GITHUB_ENV
- name: configure ubsan env
if: matrix.sanitizer == 'ubsan'
run: |
echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=undefined -fno-sanitize-recover=all" >> $GITHUB_ENV
echo "LIBCXX_SANITIZER=Undefined" >> $GITHUB_ENV
- name: configure asan env
if: matrix.sanitizer == 'asan'
run: |
echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=address -fno-sanitize-recover=all" >> $GITHUB_ENV
echo "LIBCXX_SANITIZER=Address" >> $GITHUB_ENV
- name: configure tsan env
if: matrix.sanitizer == 'tsan'
run: |
echo "EXTRA_FLAGS=-g -O2 -fno-omit-frame-pointer -fsanitize=thread -fno-sanitize-recover=all" >> $GITHUB_ENV
echo "LIBCXX_SANITIZER=Thread" >> $GITHUB_ENV
- name: fine-tune asan options
# in asan we get an error from std::regex. ignore it.
if: matrix.sanitizer == 'asan'
run: |
echo "ASAN_OPTIONS=alloc_dealloc_mismatch=0" >> $GITHUB_ENV
- name: setup clang
uses: egor-tensin/setup-clang@23bc15cd4207e45f1566447deb48f4ff3ef932cb # v2.3
with:
version: latest
platform: x64
- name: configure clang
run: |
echo "CC=cc" >> $GITHUB_ENV
echo "CXX=c++" >> $GITHUB_ENV
- name: build libc++ (non-asan)
if: matrix.sanitizer != 'asan'
run: |
"${GITHUB_WORKSPACE}/.github/libcxx-setup.sh"
echo "EXTRA_CXX_FLAGS=-stdlib=libc++ -L${GITHUB_WORKSPACE}/llvm-build/lib -lc++abi -I${GITHUB_WORKSPACE}/llvm-build/include/c++/v1 -Isystem${GITHUB_WORKSPACE}/llvm-build/include/c++/v1 -Wl,-rpath,${GITHUB_WORKSPACE}/llvm-build/lib" >> $GITHUB_ENV
- name: create build environment
run: cmake -E make_directory ${{ runner.workspace }}/_build
- name: configure cmake
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: >
VERBOSE=1
cmake -GNinja $GITHUB_WORKSPACE
-DBENCHMARK_ENABLE_ASSEMBLY_TESTS=OFF
-DBENCHMARK_ENABLE_LIBPFM=OFF
-DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON
-DCMAKE_C_COMPILER=${{ env.CC }}
-DCMAKE_CXX_COMPILER=${{ env.CXX }}
-DCMAKE_C_FLAGS="${{ env.EXTRA_FLAGS }}"
-DCMAKE_CXX_FLAGS="${{ env.EXTRA_FLAGS }} ${{ env.EXTRA_CXX_FLAGS }}"
-DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
- name: build
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: cmake --build . --config ${{ matrix.build_type }}
- name: test
shell: bash
working-directory: ${{ runner.workspace }}/_build
run: ctest -C ${{ matrix.build_type }} -VV

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thirdparty/benchmark/.github/workflows/test_bindings.yml vendored
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@ -1,36 +0,0 @@
name: test-bindings
on:
push:
branches: [main]
pull_request:
branches: [main]
env:
CMAKE_GENERATOR: Ninja
permissions:
contents: read
jobs:
python_bindings:
name: Test GBM Python ${{ matrix.python-version }} bindings on ${{ matrix.os }}
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
os: [ ubuntu-latest, macos-latest, windows-latest ]
python-version: [ "3.10", "3.11", "3.12", "3.13" ]
steps:
- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
with:
fetch-depth: 0
- name: Set up Python ${{ matrix.python-version }}
uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: ${{ matrix.python-version }}
- name: Install GBM Python bindings on ${{ matrix.os }}
run: python -m pip install .
- name: Run example on ${{ matrix.os }} under Python ${{ matrix.python-version }}
run: python bindings/python/google_benchmark/example.py

84
thirdparty/benchmark/.github/workflows/wheels.yml vendored
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@ -1,84 +0,0 @@
name: Build and upload Python wheels
on:
workflow_dispatch:
release:
types:
- published
env:
CMAKE_GENERATOR: Ninja
jobs:
build_sdist:
name: Build source distribution
runs-on: ubuntu-latest
steps:
- name: Check out repo
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
with:
fetch-depth: 0
- name: Install Python 3.12
uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: "3.12"
- run: python -m pip install build
- name: Build sdist
run: python -m build --sdist
- uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: dist-sdist
path: dist/*.tar.gz
build_wheels:
name: Build Google Benchmark wheels on ${{ matrix.os }}
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-latest, ubuntu-24.04-arm, macos-15-intel, macos-latest, windows-latest]
steps:
- name: Check out Google Benchmark
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
with:
fetch-depth: 0
- uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
name: Install Python 3.12
with:
python-version: "3.12"
- name: Install the latest version of uv
uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
- name: Build wheels on ${{ matrix.os }} using cibuildwheel
uses: pypa/cibuildwheel@8d2b08b68458a16aeb24b64e68a09ab1c8e82084 # v3.4.1
env:
CIBW_BUILD: "cp310-* cp311-* cp312-*"
CIBW_BUILD_FRONTEND: "build[uv]"
CIBW_SKIP: "*-musllinux_*"
CIBW_ARCHS: auto64
CIBW_BEFORE_ALL_LINUX: bash .github/install_bazel.sh
# Grab the rootless Bazel installation inside the container.
CIBW_ENVIRONMENT_LINUX: PATH=$PATH:$HOME/bin
CIBW_TEST_COMMAND: python {project}/bindings/python/google_benchmark/example.py
# unused by Bazel, but needed explicitly by delocate on MacOS.
MACOSX_DEPLOYMENT_TARGET: ${{ matrix.os == 'macos-15-intel' && 10.14 || 11.0 }}
- name: Upload Google Benchmark ${{ matrix.os }} wheels
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: dist-${{ matrix.os }}
path: wheelhouse/*.whl
pypi_upload:
name: Publish google-benchmark wheels to PyPI
needs: [build_sdist, build_wheels]
runs-on: ubuntu-latest
permissions:
id-token: write
steps:
- uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
with:
path: dist
pattern: dist-*
merge-multiple: true
- uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # release/v1

69
thirdparty/benchmark/.gitignore vendored
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@ -1,69 +0,0 @@
*.a
*.so
*.so.?*
*.dll
*.exe
*.dylib
*.cmake
!/cmake/**/*.cmake
!/test/AssemblyTests.cmake
*~
*.swp
*.pyc
__pycache__
.DS_Store
# lcov
*.lcov
/lcov
# cmake files.
/Testing
CMakeCache.txt
CMakeFiles/
cmake_install.cmake
# makefiles.
Makefile
# in-source build.
bin/
lib/
/test/*_test
# exuberant ctags.
tags
# YouCompleteMe configuration.
.ycm_extra_conf.pyc
# ninja generated files.
.ninja_deps
.ninja_log
build.ninja
install_manifest.txt
rules.ninja
# bazel output symlinks.
bazel-*
MODULE.bazel.lock
# out-of-source build top-level folders.
build/
_build/
build*/
# in-source dependencies
/googletest/
# Visual Studio 2015/2017 cache/options directory
.vs/
CMakeSettings.json
# Visual Studio Code cache/options directory
.vscode/
# Python build stuff
dist/
*.egg-info*
uv.lock

18
thirdparty/benchmark/.pre-commit-config.yaml vendored
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@ -1,18 +0,0 @@
repos:
- repo: https://github.com/keith/pre-commit-buildifier
rev: 8.2.1
hooks:
- id: buildifier
- id: buildifier-lint
- repo: https://github.com/pre-commit/mirrors-mypy
rev: v1.18.2
hooks:
- id: mypy
types_or: [ python, pyi ]
args: [ "--ignore-missing-imports", "--scripts-are-modules" ]
- repo: https://github.com/astral-sh/ruff-pre-commit
rev: v0.14.0
hooks:
- id: ruff-check
args: [ --fix, --exit-non-zero-on-fix ]
- id: ruff-format

120
thirdparty/benchmark/.ycm_extra_conf.py vendored
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@ -1,120 +0,0 @@
import os
import ycm_core
# These are the compilation flags that will be used in case there's no
# compilation database set (by default, one is not set).
# CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
flags = [
"-Wall",
"-Werror",
"-pedantic-errors",
"-std=c++0x",
"-fno-strict-aliasing",
"-O3",
"-DNDEBUG",
# ...and the same thing goes for the magic -x option which specifies the
# language that the files to be compiled are written in. This is mostly
# relevant for c++ headers.
# For a C project, you would set this to 'c' instead of 'c++'.
"-x",
"c++",
"-I",
"include",
"-isystem",
"/usr/include",
"-isystem",
"/usr/local/include",
]
# Set this to the absolute path to the folder (NOT the file!) containing the
# compile_commands.json file to use that instead of 'flags'. See here for
# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
#
# Most projects will NOT need to set this to anything; you can just change the
# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
compilation_database_folder = ""
if os.path.exists(compilation_database_folder):
database = ycm_core.CompilationDatabase(compilation_database_folder)
else:
database = None
SOURCE_EXTENSIONS = [".cc"]
def DirectoryOfThisScript():
return os.path.dirname(os.path.abspath(__file__))
def MakeRelativePathsInFlagsAbsolute(flags, working_directory):
if not working_directory:
return list(flags)
new_flags = []
make_next_absolute = False
path_flags = ["-isystem", "-I", "-iquote", "--sysroot="]
for flag in flags:
new_flag = flag
if make_next_absolute:
make_next_absolute = False
if not flag.startswith("/"):
new_flag = os.path.join(working_directory, flag)
for path_flag in path_flags:
if flag == path_flag:
make_next_absolute = True
break
if flag.startswith(path_flag):
path = flag[len(path_flag) :]
new_flag = path_flag + os.path.join(working_directory, path)
break
if new_flag:
new_flags.append(new_flag)
return new_flags
def IsHeaderFile(filename):
extension = os.path.splitext(filename)[1]
return extension in [".h", ".hxx", ".hpp", ".hh"]
def GetCompilationInfoForFile(filename):
# The compilation_commands.json file generated by CMake does not have
# entries for header files. So we do our best by asking the db for flags for
# a corresponding source file, if any. If one exists, the flags for that
# file should be good enough.
if IsHeaderFile(filename):
basename = os.path.splitext(filename)[0]
for extension in SOURCE_EXTENSIONS:
replacement_file = basename + extension
if os.path.exists(replacement_file):
compilation_info = database.GetCompilationInfoForFile(
replacement_file
)
if compilation_info.compiler_flags_:
return compilation_info
return None
return database.GetCompilationInfoForFile(filename)
def FlagsForFile(filename, **kwargs):
if database:
# Bear in mind that compilation_info.compiler_flags_ does NOT return a
# python list, but a "list-like" StringVec object
compilation_info = GetCompilationInfoForFile(filename)
if not compilation_info:
return None
final_flags = MakeRelativePathsInFlagsAbsolute(
compilation_info.compiler_flags_,
compilation_info.compiler_working_dir_,
)
else:
relative_to = DirectoryOfThisScript()
final_flags = MakeRelativePathsInFlagsAbsolute(flags, relative_to)
return {"flags": final_flags, "do_cache": True}

44
thirdparty/benchmark/AGENTS.md vendored
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@ -1,44 +0,0 @@
# AI usage
> [!NOTE]
> The modern (as of 2026-06) AI is a misnomer,
> - it is not conscious / not a consciousness,
> - it is not sentient,
> - it is not intelligent,
> - it does not think,
> - it does not understand the code,
> - it is merely a next-token guesser,
>
> ... therefore it is merely an (hyper-) advanced IDE.
> [!NOTE]
> A contribution is any externally-observable interaction with a project.
> [!CAUTION]
> Failure to follow the following rules *may* result in repercussions,
> possibly without a prior warning.
Rules:
1. It is acceptable to use AI when producing contributions.
> [!WARNING]
> Any and all AI usage **MUST** be fully and explicitly disclosed
> in **every** contribution.
2. All contributions shall be done by conscious, sentient beings.
Fully autonomous contributions by bots are prohibited[^1].
> [!WARNING]
> Dear contributor, the AI is *your* *tool*, and its output is for *your*
> *consumption*. It is **your** responsibility to consume said output,
> interpret it, and then produce the contribution itself.
> **DO NOT** just query it and post the output,
> *especially* so for all non-code contributions!
3. The contributor (conscious, sentient being) solely bears
the whole responsibility for the contribution,
they must understand the problem, and the solution,
and be able to constructively argue about it.
"well, AI said so, therefore it is" is not an acceptable approach.
[^1]: Unless explicitly allowed by maintainers on case-by-case basis
*before* the contribution is submitted,
in which case the bot owner (conscious, sentient being)
is recognized as the de facto contributor.
E.g. https://github.com/apps/dependabot is allowed.

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thirdparty/benchmark/AUTHORS vendored
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@ -1,81 +0,0 @@
# This is the official list of benchmark authors for copyright purposes.
# This file is distinct from the CONTRIBUTORS files.
# See the latter for an explanation.
#
# Names should be added to this file as:
# Name or Organization <email address>
# The email address is not required for organizations.
#
# Please keep the list sorted.
Albert Pretorius <pretoalb@gmail.com>
Alex Steele <steeleal123@gmail.com>
Andriy Berestovskyy <berestovskyy@gmail.com>
Arne Beer <arne@twobeer.de>
Benjamin King <kingbenja5@gmail.com>
Carto
Cezary Skrzyński <czars1988@gmail.com>
Christian Wassermann <christian_wassermann@web.de>
Christopher Seymour <chris.j.seymour@hotmail.com>
Colin Braley <braley.colin@gmail.com>
Daniel Harvey <danielharvey458@gmail.com>
David Coeurjolly <david.coeurjolly@liris.cnrs.fr>
Deniz Evrenci <denizevrenci@gmail.com>
Dirac Research
Dominik Czarnota <dominik.b.czarnota@gmail.com>
Dominik Korman <kormandominik@gmail.com>
Donald Aingworth <donalds_junk_mail@yahoo.com>
Eric Backus <eric_backus@alum.mit.edu>
Eric Fiselier <eric@efcs.ca>
Eugene Zhuk <eugene.zhuk@gmail.com>
Evgeny Safronov <division494@gmail.com>
Fabien Pichot <pichot.fabien@gmail.com>
Federico Ficarelli <federico.ficarelli@gmail.com>
Felix Homann <linuxaudio@showlabor.de>
Felmon Fekadu <felmonon@gmail.com>
Gergely Meszaros <maetveis@gmail.com>
Gergő Szitár <szitar.gergo@gmail.com>
Google Inc.
Haihan Jiang <haihanj99@gmail.com>
Henrique Bucher <hbucher@gmail.com>
International Business Machines Corporation
Ismael Jimenez Martinez <ismael.jimenez.martinez@gmail.com>
Jern-Kuan Leong <jernkuan@gmail.com>
JianXiong Zhou <zhoujianxiong2@gmail.com>
Joao Paulo Magalhaes <joaoppmagalhaes@gmail.com>
Jordan Williams <jwillikers@protonmail.com>
Jussi Knuuttila <jussi.knuuttila@gmail.com>
Kaito Udagawa <umireon@gmail.com>
Kishan Kumar <kumar.kishan@outlook.com>
Kostiantyn Lazukin <konstantin.lazukin@gmail.com>
Lei Xu <eddyxu@gmail.com>
Marcel Jacobse <mjacobse@uni-bremen.de>
Matt Clarkson <mattyclarkson@gmail.com>
Maxim Vafin <maxvafin@gmail.com>
Mike Apodaca <gatorfax@gmail.com>
Min-Yih Hsu <yihshyng223@gmail.com>
MongoDB Inc.
Nick Hutchinson <nshutchinson@gmail.com>
Norman Heino <norman.heino@gmail.com>
Oleksandr Sochka <sasha.sochka@gmail.com>
Olga Fadeeva <olga.kiselik@gmail.com>
Ori Livneh <ori.livneh@gmail.com>
Paul Redmond <paul.redmond@gmail.com>
Prithvi Rao <ee22b024@smail.iitm.ac.in>
qorexdev <sanenkosana600@gmail.com>
Radoslav Yovchev <radoslav.tm@gmail.com>
Raghu Raja <raghu@enfabrica.net>
Rainer Orth <ro@cebitec.uni-bielefeld.de>
Roman Lebedev <lebedev.ri@gmail.com>
Sayan Bhattacharjee <aero.sayan@gmail.com>
Shapr3D <google-contributors@shapr3d.com>
Shashank Thakur <shashankt2004@gmail.com>
Shuo Chen <chenshuo@chenshuo.com>
Staffan Tjernstrom <staffantj@gmail.com>
Steinar H. Gunderson <sgunderson@bigfoot.com>
Stripe, Inc.
Tobias Schmidt <tobias.schmidt@in.tum.de>
XiaoWei Lu <shaway77606@gmail.com>
Yixuan Qiu <yixuanq@gmail.com>
Yusuke Suzuki <utatane.tea@gmail.com>
Zbigniew Skowron <zbychs@gmail.com>

125
thirdparty/benchmark/BUILD.bazel vendored
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@ -1,125 +0,0 @@
load("@rules_cc//cc:defs.bzl", "cc_library")
licenses(["notice"])
COPTS = [
"-pedantic",
"-pedantic-errors",
"-std=c++17",
"-Wall",
"-Wconversion",
"-Wextra",
"-Wshadow",
# "-Wshorten-64-to-32",
"-Wfloat-equal",
"-Wformat=2",
"-fstrict-aliasing",
## assert() are used a lot in tests upstream, which may be optimised out leading to
## unused-variable warning.
"-Wno-unused-variable",
"-Werror=old-style-cast",
]
MSVC_COPTS = [
"/std:c++17",
]
config_setting(
name = "windows",
constraint_values = ["@platforms//os:windows"],
visibility = [":__subpackages__"],
)
config_setting(
name = "perfcounters",
define_values = {
"pfm": "1",
},
visibility = [":__subpackages__"],
)
cc_library(
name = "benchmark",
srcs = glob(
[
"src/*.cc",
"src/*.h",
],
exclude = ["src/benchmark_main.cc"],
),
hdrs = [
"include/benchmark/benchmark.h",
"include/benchmark/benchmark_api.h",
"include/benchmark/counter.h",
"include/benchmark/export.h",
"include/benchmark/macros.h",
"include/benchmark/managers.h",
"include/benchmark/registration.h",
"include/benchmark/reporter.h",
"include/benchmark/state.h",
"include/benchmark/statistics.h",
"include/benchmark/sysinfo.h",
"include/benchmark/types.h",
"include/benchmark/utils.h",
],
copts = select({
":windows": MSVC_COPTS,
"//conditions:default": COPTS,
}),
defines = [
"BENCHMARK_STATIC_DEFINE",
"BENCHMARK_VERSION=\\\"" + (module_version() if module_version() != None else "") + "\\\"",
] + select({
":perfcounters": ["HAVE_LIBPFM"],
"//conditions:default": [],
}),
includes = ["include"],
linkopts = select({
":windows": ["-DEFAULTLIB:shlwapi.lib"],
"//conditions:default": ["-pthread"],
}),
# Only static linking is allowed; no .so will be produced.
# Using `defines` (i.e. not `local_defines`) means that no
# dependent rules need to bother about defining the macro.
linkstatic = True,
local_defines = [
# Turn on Large-file Support
"_FILE_OFFSET_BITS=64",
"_LARGEFILE64_SOURCE",
"_LARGEFILE_SOURCE",
],
visibility = ["//visibility:public"],
deps = select({
":perfcounters": ["@libpfm"],
"//conditions:default": [],
}),
)
cc_library(
name = "benchmark_main",
srcs = ["src/benchmark_main.cc"],
hdrs = [
"include/benchmark/benchmark.h",
"include/benchmark/benchmark_api.h",
"include/benchmark/counter.h",
"include/benchmark/export.h",
"include/benchmark/macros.h",
"include/benchmark/managers.h",
"include/benchmark/registration.h",
"include/benchmark/reporter.h",
"include/benchmark/state.h",
"include/benchmark/statistics.h",
"include/benchmark/sysinfo.h",
"include/benchmark/types.h",
"include/benchmark/utils.h",
],
includes = ["include"],
visibility = ["//visibility:public"],
deps = [":benchmark"],
)
cc_library(
name = "benchmark_internal_headers",
hdrs = glob(["src/*.h"]),
visibility = ["//test:__pkg__"],
)

368
thirdparty/benchmark/CMakeLists.txt vendored
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@ -1,368 +0,0 @@
# Require CMake 3.13. If available, use the policies up to CMake 3.22.
cmake_minimum_required (VERSION 3.13...3.22)
project (benchmark VERSION 1.9.5 LANGUAGES CXX)
option(BENCHMARK_ENABLE_TESTING "Enable testing of the benchmark library." ON)
option(BENCHMARK_ENABLE_EXCEPTIONS "Enable the use of exceptions in the benchmark library." ON)
option(BENCHMARK_ENABLE_LTO "Enable link time optimisation of the benchmark library." OFF)
option(BENCHMARK_USE_LIBCXX "Build and test using libc++ as the standard library." OFF)
option(BENCHMARK_ENABLE_WERROR "Build Release candidates with -Werror." ON)
option(BENCHMARK_FORCE_WERROR "Build Release candidates with -Werror regardless of compiler issues." OFF)
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "PGI")
# PGC++ maybe reporting false positives.
set(BENCHMARK_ENABLE_WERROR OFF)
endif()
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "NVHPC")
set(BENCHMARK_ENABLE_WERROR OFF)
endif()
if(BENCHMARK_FORCE_WERROR)
set(BENCHMARK_ENABLE_WERROR ON)
endif(BENCHMARK_FORCE_WERROR)
if(NOT (MSVC OR CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC"))
option(BENCHMARK_BUILD_32_BITS "Build a 32 bit version of the library." OFF)
else()
set(BENCHMARK_BUILD_32_BITS OFF CACHE BOOL "Build a 32 bit version of the library - unsupported when using MSVC)" FORCE)
endif()
option(BENCHMARK_ENABLE_INSTALL "Enable installation of benchmark. (Projects embedding benchmark may want to turn this OFF.)" ON)
option(BENCHMARK_ENABLE_DOXYGEN "Build documentation with Doxygen." OFF)
option(BENCHMARK_INSTALL_DOCS "Enable installation of documentation." ON)
option(BENCHMARK_INSTALL_TOOLS "Enable installation of tools." ON)
# Allow unmet dependencies to be met using CMake's ExternalProject mechanics, which
# may require downloading the source code.
option(BENCHMARK_DOWNLOAD_DEPENDENCIES "Allow the downloading and in-tree building of unmet dependencies" OFF)
# This option can be used to disable building and running unit tests which depend on gtest
# in cases where it is not possible to build or find a valid version of gtest.
option(BENCHMARK_ENABLE_GTEST_TESTS "Enable building the unit tests which depend on gtest" ON)
option(BENCHMARK_USE_BUNDLED_GTEST "Use bundled GoogleTest. If disabled, the find_package(GTest) will be used." ON)
option(BENCHMARK_ENABLE_LIBPFM "Enable performance counters provided by libpfm" OFF)
# Export only public symbols
set(CMAKE_CXX_VISIBILITY_PRESET hidden)
set(CMAKE_VISIBILITY_INLINES_HIDDEN ON)
if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
# As of CMake 3.18, CMAKE_SYSTEM_PROCESSOR is not set properly for MSVC and
# cross-compilation (e.g. Host=x86_64, target=aarch64) requires using the
# undocumented, but working variable.
# See https://gitlab.kitware.com/cmake/cmake/-/issues/15170
set(CMAKE_SYSTEM_PROCESSOR ${MSVC_CXX_ARCHITECTURE_ID})
if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "ARM")
set(CMAKE_CROSSCOMPILING TRUE)
endif()
endif()
set(ENABLE_ASSEMBLY_TESTS_DEFAULT OFF)
function(should_enable_assembly_tests)
if(CMAKE_BUILD_TYPE)
string(TOLOWER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE_LOWER)
if (${CMAKE_BUILD_TYPE_LOWER} MATCHES "coverage")
# FIXME: The --coverage flag needs to be removed when building assembly
# tests for this to work.
return()
endif()
endif()
if (MSVC OR CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC")
return()
elseif(NOT CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
return()
elseif(NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
# FIXME: Make these work on 32 bit builds
return()
elseif(BENCHMARK_BUILD_32_BITS)
# FIXME: Make these work on 32 bit builds
return()
endif()
find_program(LLVM_FILECHECK_EXE FileCheck)
if (LLVM_FILECHECK_EXE)
set(LLVM_FILECHECK_EXE "${LLVM_FILECHECK_EXE}" CACHE PATH "llvm filecheck" FORCE)
message(STATUS "LLVM FileCheck Found: ${LLVM_FILECHECK_EXE}")
else()
message(STATUS "Failed to find LLVM FileCheck")
return()
endif()
set(ENABLE_ASSEMBLY_TESTS_DEFAULT ON PARENT_SCOPE)
endfunction()
should_enable_assembly_tests()
# This option disables the building and running of the assembly verification tests
option(BENCHMARK_ENABLE_ASSEMBLY_TESTS "Enable building and running the assembly tests"
${ENABLE_ASSEMBLY_TESTS_DEFAULT})
# Make sure we can import out CMake functions
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
# Read the git tags to determine the project version
include(GetGitVersion)
get_git_version(GIT_VERSION)
# If no git version can be determined, use the version
# from the project() command
if ("${GIT_VERSION}" STREQUAL "v0.0.0")
set(VERSION "v${benchmark_VERSION}")
else()
set(VERSION "${GIT_VERSION}")
endif()
# Normalize version: drop "v" prefix, replace first "-" with ".",
# drop everything after second "-" (including said "-").
string(STRIP ${VERSION} VERSION)
if(VERSION MATCHES v[^-]*-)
string(REGEX REPLACE "v([^-]*)-([0-9]+)-.*" "\\1.\\2" NORMALIZED_VERSION ${VERSION})
else()
string(REGEX REPLACE "v(.*)" "\\1" NORMALIZED_VERSION ${VERSION})
endif()
# Tell the user what versions we are using
message(STATUS "Google Benchmark version: ${VERSION}, normalized to ${NORMALIZED_VERSION}")
# The version of the libraries
set(GENERIC_LIB_VERSION ${NORMALIZED_VERSION})
string(SUBSTRING ${NORMALIZED_VERSION} 0 1 GENERIC_LIB_SOVERSION)
# Import our CMake modules
include(AddCXXCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckLibraryExists)
include(CXXFeatureCheck)
# Check for rt library, but explicitly disable for QNX
if(QNXNTO)
set(HAVE_LIB_RT FALSE)
else()
check_library_exists(rt shm_open "" HAVE_LIB_RT)
endif()
if (BENCHMARK_BUILD_32_BITS)
add_required_cxx_compiler_flag(-m32)
endif()
set(BENCHMARK_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD ${BENCHMARK_CXX_STANDARD})
set(CMAKE_CXX_STANDARD_REQUIRED YES)
set(CMAKE_CXX_EXTENSIONS OFF)
if (MSVC)
# Turn compiler warnings up to 11
string(REGEX REPLACE "[-/]W[1-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
# MP flag only applies to cl, not cl frontends to other compilers (e.g. clang-cl, icx-cl etc)
if(CMAKE_CXX_COMPILER_ID MATCHES MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
endif()
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
if(BENCHMARK_ENABLE_WERROR)
add_cxx_compiler_flag(-WX)
endif()
if (NOT BENCHMARK_ENABLE_EXCEPTIONS)
add_cxx_compiler_flag(-EHs-)
add_cxx_compiler_flag(-EHa-)
add_definitions(-D_HAS_EXCEPTIONS=0)
endif()
# Link time optimisation
if (BENCHMARK_ENABLE_LTO)
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /GL")
set(CMAKE_STATIC_LINKER_FLAGS_RELEASE "${CMAKE_STATIC_LINKER_FLAGS_RELEASE} /LTCG")
set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /LTCG")
set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /GL")
string(REGEX REPLACE "[-/]INCREMENTAL" "/INCREMENTAL:NO" CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO}")
set(CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO} /LTCG")
string(REGEX REPLACE "[-/]INCREMENTAL" "/INCREMENTAL:NO" CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO}")
set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO} /LTCG")
string(REGEX REPLACE "[-/]INCREMENTAL" "/INCREMENTAL:NO" CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}")
set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /LTCG")
set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /GL")
set(CMAKE_STATIC_LINKER_FLAGS_MINSIZEREL "${CMAKE_STATIC_LINKER_FLAGS_MINSIZEREL} /LTCG")
set(CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "${CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL} /LTCG")
set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} /LTCG")
endif()
else()
# Turn on Large-file Support
add_definitions(-D_FILE_OFFSET_BITS=64)
add_definitions(-D_LARGEFILE64_SOURCE)
add_definitions(-D_LARGEFILE_SOURCE)
# Turn compiler warnings up to 11
add_cxx_compiler_flag(-Wall)
add_cxx_compiler_flag(-Wextra)
add_cxx_compiler_flag(-Wshadow)
add_cxx_compiler_flag(-Wfloat-equal)
add_cxx_compiler_flag(-Wold-style-cast)
add_cxx_compiler_flag(-Wconversion)
add_cxx_compiler_flag(-Wformat=2)
if(BENCHMARK_ENABLE_WERROR)
add_cxx_compiler_flag(-Werror)
add_cxx_compiler_flag(-pedantic-errors)
endif()
if (NOT BENCHMARK_ENABLE_TESTING)
# Disable warning when compiling tests as gtest does not use 'override'.
add_cxx_compiler_flag(-Wsuggest-override)
endif()
add_cxx_compiler_flag(-pedantic)
add_cxx_compiler_flag(-Wshorten-64-to-32)
add_cxx_compiler_flag(-fstrict-aliasing)
# Disable warnings regarding deprecated parts of the library while building
# and testing those parts of the library.
add_cxx_compiler_flag(-Wno-deprecated-declarations)
if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel" OR CMAKE_CXX_COMPILER_ID STREQUAL "IntelLLVM")
# Intel silently ignores '-Wno-deprecated-declarations',
# warning no. 1786 must be explicitly disabled.
# See #631 for rationale.
add_cxx_compiler_flag(-wd1786)
add_cxx_compiler_flag(-fno-finite-math-only)
# ICC17u2: overloaded virtual function "benchmark::Fixture::SetUp" is only partially
# overridden (because of deprecated overload)
add_cxx_compiler_flag(-wd654)
endif()
# Disable deprecation warnings for release builds (when -Werror is enabled).
if(BENCHMARK_ENABLE_WERROR)
add_cxx_compiler_flag(-Wno-deprecated)
endif()
if (NOT BENCHMARK_ENABLE_EXCEPTIONS)
add_cxx_compiler_flag(-fno-exceptions)
endif()
if (HAVE_CXX_FLAG_FSTRICT_ALIASING)
if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "Intel" AND NOT CMAKE_CXX_COMPILER_ID STREQUAL "IntelLLVM") #ICC17u2: Many false positives for Wstrict-aliasing
add_cxx_compiler_flag(-Wstrict-aliasing)
endif()
endif()
add_cxx_compiler_flag(-Wthread-safety)
if (HAVE_CXX_FLAG_WTHREAD_SAFETY)
cxx_feature_check(THREAD_SAFETY_ATTRIBUTES "-DINCLUDE_DIRECTORIES=${PROJECT_SOURCE_DIR}/include")
endif()
# On most UNIX like platforms g++ and clang++ define _GNU_SOURCE as a
# predefined macro, which turns on all of the wonderful libc extensions.
# However g++ doesn't do this in Cygwin so we have to define it ourselves
# since we depend on GNU/POSIX/BSD extensions.
if (CYGWIN)
add_definitions(-D_GNU_SOURCE=1)
endif()
if (QNXNTO)
add_definitions(-D_QNX_SOURCE)
endif()
# Link time optimisation
if (BENCHMARK_ENABLE_LTO)
add_cxx_compiler_flag(-flto)
add_cxx_compiler_flag(-Wno-lto-type-mismatch)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
find_program(GCC_AR gcc-ar)
if (GCC_AR)
set(CMAKE_AR ${GCC_AR})
endif()
find_program(GCC_RANLIB gcc-ranlib)
if (GCC_RANLIB)
set(CMAKE_RANLIB ${GCC_RANLIB})
endif()
elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
include(llvm-toolchain)
endif()
endif()
# Coverage build type
set(BENCHMARK_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_DEBUG}"
CACHE STRING "Flags used by the C++ compiler during coverage builds."
FORCE)
set(BENCHMARK_EXE_LINKER_FLAGS_COVERAGE "${CMAKE_EXE_LINKER_FLAGS_DEBUG}"
CACHE STRING "Flags used for linking binaries during coverage builds."
FORCE)
set(BENCHMARK_SHARED_LINKER_FLAGS_COVERAGE "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}"
CACHE STRING "Flags used by the shared libraries linker during coverage builds."
FORCE)
mark_as_advanced(
BENCHMARK_CXX_FLAGS_COVERAGE
BENCHMARK_EXE_LINKER_FLAGS_COVERAGE
BENCHMARK_SHARED_LINKER_FLAGS_COVERAGE)
set(CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}" CACHE STRING
"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel Coverage.")
add_cxx_compiler_flag(--coverage COVERAGE)
endif()
if (BENCHMARK_USE_LIBCXX)
if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
add_cxx_compiler_flag(-stdlib=libc++)
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR
"${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel" OR
"${CMAKE_CXX_COMPILER_ID}" STREQUAL "IntelLLVM")
add_cxx_compiler_flag(-nostdinc++)
message(WARNING "libc++ header path must be manually specified using CMAKE_CXX_FLAGS")
# Adding -nodefaultlibs directly to CMAKE_<TYPE>_LINKER_FLAGS will break
# configuration checks such as 'find_package(Threads)'
list(APPEND BENCHMARK_CXX_LINKER_FLAGS -nodefaultlibs)
# -lc++ cannot be added directly to CMAKE_<TYPE>_LINKER_FLAGS because
# linker flags appear before all linker inputs and -lc++ must appear after.
list(APPEND BENCHMARK_CXX_LIBRARIES c++)
else()
message(FATAL_ERROR "-DBENCHMARK_USE_LIBCXX:BOOL=ON is not supported for compiler")
endif()
endif(BENCHMARK_USE_LIBCXX)
# C++ feature checks
# Determine the correct regular expression engine to use
cxx_feature_check(STD_REGEX)
cxx_feature_check(GNU_POSIX_REGEX)
cxx_feature_check(POSIX_REGEX)
if(NOT HAVE_STD_REGEX AND NOT HAVE_GNU_POSIX_REGEX AND NOT HAVE_POSIX_REGEX)
message(FATAL_ERROR "Failed to determine the source files for the regular expression backend")
endif()
if (NOT BENCHMARK_ENABLE_EXCEPTIONS AND HAVE_STD_REGEX
AND NOT HAVE_GNU_POSIX_REGEX AND NOT HAVE_POSIX_REGEX)
message(WARNING "Using std::regex with exceptions disabled is not fully supported")
endif()
cxx_feature_check(STEADY_CLOCK)
# Ensure we have pthreads
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
# cxx_feature_check relies on try_run to probe compiler features. Because this
# check does not produce a real target, target_link_libraries cannot be applied.
# Therefore, link libraries are forwarded to try_run through
# BENCHMARK_CXX_LIBRARIES.
list(APPEND BENCHMARK_CXX_LIBRARIES Threads::Threads)
cxx_feature_check(PTHREAD_AFFINITY)
if (BENCHMARK_ENABLE_LIBPFM)
find_package(PFM REQUIRED)
endif()
# Set up directories
include_directories(${PROJECT_SOURCE_DIR}/include)
# Build the targets
add_subdirectory(src)
if (BENCHMARK_ENABLE_TESTING)
enable_testing()
if (BENCHMARK_ENABLE_GTEST_TESTS AND
NOT (TARGET gtest AND TARGET gtest_main AND
TARGET gmock AND TARGET gmock_main))
if (BENCHMARK_USE_BUNDLED_GTEST)
include(GoogleTest)
else()
find_package(GTest CONFIG REQUIRED)
add_library(gtest ALIAS GTest::gtest)
add_library(gtest_main ALIAS GTest::gtest_main)
add_library(gmock ALIAS GTest::gmock)
add_library(gmock_main ALIAS GTest::gmock_main)
endif()
endif()
add_subdirectory(test)
endif()

63
thirdparty/benchmark/CONTRIBUTING.md vendored
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@ -1,63 +0,0 @@
# How to contribute #
We'd love to accept your patches and contributions to this project. There are
a just a few small guidelines you need to follow.
## Contributor License Agreement ##
Contributions to any Google project must be accompanied by a Contributor
License Agreement. This is not a copyright **assignment**, it simply gives
Google permission to use and redistribute your contributions as part of the
project.
* If you are an individual writing original source code and you're sure you
own the intellectual property, then you'll need to sign an [individual
CLA][].
* If you work for a company that wants to allow you to contribute your work,
then you'll need to sign a [corporate CLA][].
You generally only need to submit a CLA once, so if you've already submitted
one (even if it was for a different project), you probably don't need to do it
again.
[individual CLA]: https://developers.google.com/open-source/cla/individual
[corporate CLA]: https://developers.google.com/open-source/cla/corporate
Once your CLA is submitted (or if you already submitted one for
another Google project), make a commit adding yourself to the
[AUTHORS][] and [CONTRIBUTORS][] files. This commit can be part
of your first [pull request][].
[AUTHORS]: AUTHORS
[CONTRIBUTORS]: CONTRIBUTORS
## Submitting a patch ##
1. It's generally best to start by opening a new issue describing the bug or
feature you're intending to fix. Even if you think it's relatively minor,
it's helpful to know what people are working on. Mention in the initial
issue that you are planning to work on that bug or feature so that it can
be assigned to you.
1. Follow the normal process of [forking][] the project, and setup a new
branch to work in. It's important that each group of changes be done in
separate branches in order to ensure that a pull request only includes the
commits related to that bug or feature.
1. Do your best to have [well-formed commit messages][] for each change.
This provides consistency throughout the project, and ensures that commit
messages are able to be formatted properly by various git tools.
1. Finally, push the commits to your fork and submit a [pull request][].
## AI usage ##
Please consult [AGENTS](AGENTS.md) file.
[forking]: https://help.github.com/articles/fork-a-repo
[well-formed commit messages]: http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html
[pull request]: https://help.github.com/articles/creating-a-pull-request

108
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@ -1,108 +0,0 @@
# People who have agreed to one of the CLAs and can contribute patches.
# The AUTHORS file lists the copyright holders; this file
# lists people. For example, Google employees are listed here
# but not in AUTHORS, because Google holds the copyright.
#
# Names should be added to this file only after verifying that
# the individual or the individual's organization has agreed to
# the appropriate Contributor License Agreement, found here:
#
# https://developers.google.com/open-source/cla/individual
# https://developers.google.com/open-source/cla/corporate
#
# The agreement for individuals can be filled out on the web.
#
# When adding J Random Contributor's name to this file,
# either J's name or J's organization's name should be
# added to the AUTHORS file, depending on whether the
# individual or corporate CLA was used.
#
# Names should be added to this file as:
# Name <email address>
#
# Please keep the list sorted.
Abhina Sreeskantharajan <abhina.sreeskantharajan@ibm.com>
Albert Pretorius <pretoalb@gmail.com>
Alex Steele <steelal123@gmail.com>
Andriy Berestovskyy <berestovskyy@gmail.com>
Arne Beer <arne@twobeer.de>
Bátor Tallér <bator.taller@shapr3d.com>
Benjamin King <kingbenja5@gmail.com>
Billy Robert O'Neal III <billy.oneal@gmail.com> <bion@microsoft.com>
Cezary Skrzyński <czars1988@gmail.com>
Chris Kennelly <ckennelly@google.com> <ckennelly@ckennelly.com>
Christian Wassermann <christian_wassermann@web.de>
Christopher Seymour <chris.j.seymour@hotmail.com>
Colin Braley <braley.colin@gmail.com>
Cyrille Faucheux <cyrille.faucheux@gmail.com>
Daniel Harvey <danielharvey458@gmail.com>
David Coeurjolly <david.coeurjolly@liris.cnrs.fr>
Deniz Evrenci <denizevrenci@gmail.com>
Dominic Hamon <dma@stripysock.com> <dominic@google.com>
Dominik Czarnota <dominik.b.czarnota@gmail.com>
Dominik Korman <kormandominik@gmail.com>
Donald Aingworth <donalds_junk_mail@yahoo.com>
Doug Evans <xdje42@gmail.com>
Eric Backus <eric_backus@alum.mit.edu>
Eric Fiselier <eric@efcs.ca>
Eugene Zhuk <eugene.zhuk@gmail.com>
Evgeny Safronov <division494@gmail.com>
Fabien Pichot <pichot.fabien@gmail.com>
Fanbo Meng <fanbo.meng@ibm.com>
Federico Ficarelli <federico.ficarelli@gmail.com>
Felix Homann <linuxaudio@showlabor.de>
Felmon Fekadu <felmonon@gmail.com>
Geoffrey Martin-Noble <gcmn@google.com> <gmngeoffrey@gmail.com>
Gergely Meszaros <maetveis@gmail.com>
Gergő Szitár <szitar.gergo@gmail.com>
Haihan Jiang <haihanj99@gmail.com>
Hannes Hauswedell <h2@fsfe.org>
Henrique Bucher <hbucher@gmail.com>
Ismael Jimenez Martinez <ismael.jimenez.martinez@gmail.com>
Iakov Sergeev <yahontu@gmail.com>
Jern-Kuan Leong <jernkuan@gmail.com>
JianXiong Zhou <zhoujianxiong2@gmail.com>
Joao Paulo Magalhaes <joaoppmagalhaes@gmail.com>
John Millikin <jmillikin@stripe.com>
Jordan Williams <jwillikers@protonmail.com>
Jussi Knuuttila <jussi.knuuttila@gmail.com>
Kaito Udagawa <umireon@gmail.com>
Kai Wolf <kai.wolf@gmail.com>
Kishan Kumar <kumar.kishan@outlook.com>
Kostiantyn Lazukin <konstantin.lazukin@gmail.com>
Lei Xu <eddyxu@gmail.com>
Marcel Jacobse <mjacobse@uni-bremen.de>
Matt Clarkson <mattyclarkson@gmail.com>
Maxim Vafin <maxvafin@gmail.com>
Mike Apodaca <gatorfax@gmail.com>
Min-Yih Hsu <yihshyng223@gmail.com>
Nick Hutchinson <nshutchinson@gmail.com>
Norman Heino <norman.heino@gmail.com>
Oleksandr Sochka <sasha.sochka@gmail.com>
Olga Fadeeva <olga.kiselik@gmail.com>
Ori Livneh <ori.livneh@gmail.com>
Pascal Leroy <phl@google.com>
Paul Redmond <paul.redmond@gmail.com>
Pierre Phaneuf <pphaneuf@google.com>
Prithvi Rao <ee22b024@smail.iitm.ac.in>
qorexdev <sanenkosana600@gmail.com>
Radoslav Yovchev <radoslav.tm@gmail.com>
Raghu Raja <raghu@enfabrica.net>
Rainer Orth <ro@cebitec.uni-bielefeld.de>
Raul Marin <rmrodriguez@cartodb.com>
Ray Glover <ray.glover@uk.ibm.com>
Robert Guo <robert.guo@mongodb.com>
Roman Lebedev <lebedev.ri@gmail.com>
Sayan Bhattacharjee <aero.sayan@gmail.com>
Shashank Thakur <shashankt2004@gmail.com>
ShengYi Hung <aokblast@FreeBSD.org>
Shuo Chen <chenshuo@chenshuo.com>
Steven Wan <wan.yu@ibm.com>
Tobias Schmidt <tobias.schmidt@in.tum.de>
Tobias Ulvgård <tobias.ulvgard@dirac.se>
Tom Madams <tom.ej.madams@gmail.com> <tmadams@google.com>
XiaoWei Lu <shaway77606@gmail.com>
Yixuan Qiu <yixuanq@gmail.com>
Yusuke Suzuki <utatane.tea@gmail.com>
Zbigniew Skowron <zbychs@gmail.com>

202
thirdparty/benchmark/LICENSE vendored
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@ -1,202 +0,0 @@
Apache License
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41
thirdparty/benchmark/MODULE.bazel vendored
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@ -1,41 +0,0 @@
module(
name = "google_benchmark",
version = "1.9.5",
)
bazel_dep(name = "bazel_skylib", version = "1.7.1")
bazel_dep(name = "platforms", version = "0.0.10")
bazel_dep(name = "rules_cc", version = "0.0.9")
bazel_dep(name = "rules_python", version = "1.0.0", dev_dependency = True)
bazel_dep(name = "googletest", version = "1.14.0", dev_dependency = True, repo_name = "com_google_googletest")
bazel_dep(name = "libpfm", version = "4.11.0.bcr.1")
# Register a toolchain for Python 3.9 to be able to build numpy. Python
# versions >=3.10 are problematic.
# A second reason for this is to be able to build Python hermetically instead
# of relying on the changing default version from rules_python.
python = use_extension("@rules_python//python/extensions:python.bzl", "python", dev_dependency = True)
python.toolchain(python_version = "3.8")
python.toolchain(python_version = "3.9")
python.toolchain(python_version = "3.10")
python.toolchain(python_version = "3.11")
python.toolchain(
is_default = True,
python_version = "3.12",
)
python.toolchain(python_version = "3.13")
pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip", dev_dependency = True)
pip.parse(
hub_name = "tools_pip_deps",
python_version = "3.12",
requirements_lock = "//tools:requirements.txt",
)
use_repo(pip, "tools_pip_deps")
# -- bazel_dep definitions -- #
bazel_dep(name = "nanobind_bazel", version = "2.9.2", dev_dependency = True)

275
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# Benchmark
[![build-and-test](https://github.com/google/benchmark/workflows/build-and-test/badge.svg)](https://github.com/google/benchmark/actions?query=workflow%3Abuild-and-test)
[![bazel](https://github.com/google/benchmark/actions/workflows/bazel.yml/badge.svg)](https://github.com/google/benchmark/actions/workflows/bazel.yml)
[![test-bindings](https://github.com/google/benchmark/workflows/test-bindings/badge.svg)](https://github.com/google/benchmark/actions?query=workflow%3Atest-bindings)
[![Coverage Status](https://coveralls.io/repos/google/benchmark/badge.svg)](https://coveralls.io/r/google/benchmark)
[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/google/benchmark/badge)](https://securityscorecards.dev/viewer/?uri=github.com/google/benchmark)
[![Discord](https://discordapp.com/api/guilds/1125694995928719494/widget.png?style=shield)](https://discord.gg/cz7UX7wKC2)
A library to benchmark code snippets, similar to unit tests. Example:
```c++
#include <benchmark/registration.h>
#include <benchmark/state.h>
static void BM_SomeFunction(benchmark::State& state) {
// Perform setup here
for (auto _ : state) {
// This code gets timed
SomeFunction();
}
}
// Register the function as a benchmark
BENCHMARK(BM_SomeFunction);
// Run the benchmark
BENCHMARK_MAIN();
```
## Getting Started
To get started, see [Requirements](#requirements) and
[Installation](#installation). See [Usage](#usage) for a full example and the
[User Guide](docs/user_guide.md) for a more comprehensive feature overview.
It may also help to read the [Google Test documentation](https://github.com/google/googletest/blob/main/docs/primer.md)
as some of the structural aspects of the APIs are similar.
## Resources
[Discussion group](https://groups.google.com/d/forum/benchmark-discuss)
IRC channels:
* [libera](https://libera.chat) #benchmark
[Additional Tooling Documentation](docs/tools.md)
[Assembly Testing Documentation](docs/AssemblyTests.md)
[Building and installing Python bindings](docs/python_bindings.md)
## Requirements
The library can be used with C++11. However, it requires C++17 to build,
including compiler and standard library support.
_See [dependencies.md](docs/dependencies.md) for more details regarding supported
compilers and standards._
If you have need for a particular compiler to be supported, patches are very welcome.
See [Platform-Specific Build Instructions](docs/platform_specific_build_instructions.md).
## Installation
This describes the installation process using cmake. As pre-requisites, you'll
need git and cmake installed.
_See [dependencies.md](docs/dependencies.md) for more details regarding supported
versions of build tools._
```bash
# Check out the library.
$ git clone https://github.com/google/benchmark.git
# Go to the library root directory
$ cd benchmark
# Make a build directory to place the build output.
$ cmake -E make_directory "build"
# Generate build system files with cmake, and download any dependencies.
$ cmake -DBENCHMARK_DOWNLOAD_DEPENDENCIES=on -DCMAKE_BUILD_TYPE=Release -S . -B "build"
# Build the library.
$ cmake --build "build" --config Release
```
This builds the `benchmark` and `benchmark_main` libraries and tests.
On a unix system, the build directory should now look something like this:
```
/benchmark
/build
/src
/libbenchmark.a
/libbenchmark_main.a
/test
...
```
Next, you can run the tests to check the build.
```bash
$ cmake -E chdir "build" ctest --build-config Release
```
If you want to install the library globally, also run:
```
sudo cmake --build "build" --config Release --target install
```
Note that Google Benchmark requires Google Test to build and run the tests. This
dependency can be provided two ways:
* Checkout the Google Test sources into `benchmark/googletest`.
* Otherwise, if `-DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON` is specified during
configuration as above, the library will automatically download and build
any required dependencies.
If you do not wish to build and run the tests, add `-DBENCHMARK_ENABLE_GTEST_TESTS=OFF`
to `CMAKE_ARGS`.
### Debug vs Release
By default, benchmark builds as a debug library. You will see a warning in the
output when this is the case. To build it as a release library instead, add
`-DCMAKE_BUILD_TYPE=Release` when generating the build system files, as shown
above. The use of `--config Release` in build commands is needed to properly
support multi-configuration tools (like Visual Studio for example) and can be
skipped for other build systems (like Makefile).
To enable link-time optimisation, also add `-DBENCHMARK_ENABLE_LTO=true` when
generating the build system files.
If you are using gcc, you might need to set `GCC_AR` and `GCC_RANLIB` cmake
cache variables, if autodetection fails.
If you are using clang, you may need to set `LLVMAR_EXECUTABLE`,
`LLVMNM_EXECUTABLE` and `LLVMRANLIB_EXECUTABLE` cmake cache variables.
To enable sanitizer checks (eg., `asan` and `tsan`), add:
```
-DCMAKE_C_FLAGS="-g -O2 -fno-omit-frame-pointer -fsanitize=address -fsanitize=thread -fno-sanitize-recover=all"
-DCMAKE_CXX_FLAGS="-g -O2 -fno-omit-frame-pointer -fsanitize=address -fsanitize=thread -fno-sanitize-recover=all "
```
### Stable and Experimental Library Versions
The main branch contains the latest stable version of the benchmarking library;
the API of which can be considered largely stable, with source breaking changes
being made only upon the release of a new major version.
Newer, experimental, features are implemented and tested on the
[`v2` branch](https://github.com/google/benchmark/tree/v2). Users who wish
to use, test, and provide feedback on the new features are encouraged to try
this branch. However, this branch provides no stability guarantees and reserves
the right to change and break the API at any time.
## Usage
### Basic usage
Define a function that executes the code to measure, register it as a benchmark
function using the `BENCHMARK` macro, and ensure an appropriate `main` function
is available:
```c++
#include <benchmark/benchmark.h>
static void BM_StringCreation(benchmark::State& state) {
for (auto _ : state)
std::string empty_string;
}
// Register the function as a benchmark
BENCHMARK(BM_StringCreation);
// Define another benchmark
static void BM_StringCopy(benchmark::State& state) {
std::string x = "hello";
for (auto _ : state)
std::string copy(x);
}
BENCHMARK(BM_StringCopy);
BENCHMARK_MAIN();
```
To run the benchmark, compile and link against the `benchmark` library
(libbenchmark.a/.so). If you followed the build steps above, this library will
be under the build directory you created.
```bash
# Example on linux after running the build steps above. Assumes the
# `benchmark` and `build` directories are under the current directory.
$ g++ mybenchmark.cc -std=c++11 -isystem benchmark/include \
-Lbenchmark/build/src -lbenchmark -lpthread -o mybenchmark
```
Alternatively, link against the `benchmark_main` library and remove
`BENCHMARK_MAIN();` above to get the same behavior.
The compiled executable will run all benchmarks by default. Pass the `--help`
flag for option information or see the [User Guide](docs/user_guide.md).
### Usage with CMake
If using CMake, it is recommended to link against the project-provided
`benchmark::benchmark` or `benchmark::benchmark_main` targets using
`target_link_libraries`. Link to `benchmark::benchmark` when your target
defines its own `main` function, or link to `benchmark::benchmark_main` to use
the default benchmark entry point. The `benchmark::benchmark_main` target links
`benchmark::benchmark` transitively.
It is possible to use ```find_package``` to import an installed version of the
library.
```cmake
find_package(benchmark REQUIRED)
```
Alternatively, ```add_subdirectory``` will incorporate the library directly in
to one's CMake project.
```cmake
add_subdirectory(benchmark)
```
Either way, link to the library as follows.
```cmake
target_link_libraries(MyTarget benchmark::benchmark)
# Or, when you do not define your own main:
target_link_libraries(MyTarget benchmark::benchmark_main)
```
When benchmark sources are shared through an intermediate CMake target, choose
an object library instead of a static library:
```cmake
add_library(shared_benchmarks OBJECT bench.cc)
target_link_libraries(shared_benchmarks benchmark::benchmark_main)
add_executable(runnable_benchmarks)
target_link_libraries(runnable_benchmarks shared_benchmarks)
```
This links the object file that contains `BENCHMARK` registrations into the
final executable. If those registrations are placed only in an intermediate
`STATIC` library, the linker may not copy static registration symbols, and thus
benchmarks will not be part of the final executable.
#### Embedding Google Benchmark in another CMake project
There are two common ways to consume Google Benchmark from a CMake project:
* Use an installed or package-managed copy, for example from a system package
manager or vcpkg, and import it with `find_package(benchmark REQUIRED)`.
* Add this repository to the source tree, for example as a submodule or
`FetchContent` dependency, and call `add_subdirectory`.
The installed form keeps Google Benchmark's build separate from the parent
project and is usually the simplest choice for system packages and vcpkg. The
source-tree form is useful when the parent project wants to pin a specific
commit or build Google Benchmark as part of its normal CMake configure step.
When embedding from source, most projects should turn off Google Benchmark's
tests and install rules:
```cmake
set(BENCHMARK_ENABLE_GTEST_TESTS OFF CACHE BOOL "" FORCE)
set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE)
set(BENCHMARK_ENABLE_INSTALL OFF CACHE BOOL "" FORCE)
add_subdirectory(third_party/benchmark)
target_link_libraries(MyTarget benchmark::benchmark)
```
If Google Test is not already provided by the parent build, either check out the
Google Test sources under `benchmark/googletest` or configure with
`BENCHMARK_DOWNLOAD_DEPENDENCIES=ON`. For projects that only link the benchmark
library and do not build Google Benchmark's tests, disabling
`BENCHMARK_ENABLE_GTEST_TESTS` avoids the Google Test dependency.
Google Benchmark follows CMake's `BUILD_SHARED_LIBS` setting when selecting
static or shared library output. On Windows, keep this setting consistent with
the rest of the project and make sure the same runtime library configuration is
used across the benchmark library and the targets that link it.

20
thirdparty/benchmark/WORKSPACE vendored
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@ -1,20 +0,0 @@
workspace(name = "com_github_google_benchmark")
load("//:bazel/benchmark_deps.bzl", "benchmark_deps")
benchmark_deps()
load("@rules_python//python:repositories.bzl", "py_repositories")
py_repositories()
load("@rules_python//python:pip.bzl", "pip_parse")
pip_parse(
name = "tools_pip_deps",
requirements_lock = "//tools:requirements.txt",
)
load("@tools_pip_deps//:requirements.bzl", "install_deps")
install_deps()

2
thirdparty/benchmark/WORKSPACE.bzlmod vendored
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@ -1,2 +0,0 @@
# This file marks the root of the Bazel workspace.
# See MODULE.bazel for dependencies and setup.

2
thirdparty/benchmark/_config.yml vendored
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@ -1,2 +0,0 @@
theme: jekyll-theme-midnight
markdown: GFM

50
thirdparty/benchmark/appveyor.yml vendored
View File

@ -1,50 +0,0 @@
version: '{build}'
image: Visual Studio 2017
configuration:
- Debug
- Release
environment:
matrix:
- compiler: msvc-15-seh
generator: "Visual Studio 15 2017"
- compiler: msvc-15-seh
generator: "Visual Studio 15 2017 Win64"
- compiler: msvc-14-seh
generator: "Visual Studio 14 2015"
- compiler: msvc-14-seh
generator: "Visual Studio 14 2015 Win64"
- compiler: gcc-5.3.0-posix
generator: "MinGW Makefiles"
cxx_path: 'C:\mingw-w64\i686-5.3.0-posix-dwarf-rt_v4-rev0\mingw32\bin'
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
matrix:
fast_finish: true
install:
# git bash conflicts with MinGW makefiles
- if "%generator%"=="MinGW Makefiles" (set "PATH=%PATH:C:\Program Files\Git\usr\bin;=%")
- if not "%cxx_path%"=="" (set "PATH=%PATH%;%cxx_path%")
build_script:
- md _build -Force
- cd _build
- echo %configuration%
- cmake -G "%generator%" "-DCMAKE_BUILD_TYPE=%configuration%" -DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON ..
- cmake --build . --config %configuration%
test_script:
- ctest --build-config %configuration% --timeout 300 --output-on-failure
artifacts:
- path: '_build/CMakeFiles/*.log'
name: logs
- path: '_build/Testing/**/*.xml'
name: test_results

54
thirdparty/benchmark/bazel/benchmark_deps.bzl vendored
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@ -1,54 +0,0 @@
"""
This file contains the Bazel build dependencies for Google Benchmark (both C++ source and Python bindings).
"""
load("@bazel_tools//tools/build_defs/repo:git.bzl", "new_git_repository")
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
def benchmark_deps():
"""Loads dependencies required to build Google Benchmark."""
if "bazel_skylib" not in native.existing_rules():
http_archive(
name = "bazel_skylib",
sha256 = "cd55a062e763b9349921f0f5db8c3933288dc8ba4f76dd9416aac68acee3cb94",
urls = [
"https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.5.0/bazel-skylib-1.5.0.tar.gz",
"https://github.com/bazelbuild/bazel-skylib/releases/download/1.5.0/bazel-skylib-1.5.0.tar.gz",
],
)
if "rules_python" not in native.existing_rules():
http_archive(
name = "rules_python",
sha256 = "e85ae30de33625a63eca7fc40a94fea845e641888e52f32b6beea91e8b1b2793",
strip_prefix = "rules_python-0.27.1",
url = "https://github.com/bazelbuild/rules_python/releases/download/0.27.1/rules_python-0.27.1.tar.gz",
)
if "com_google_googletest" not in native.existing_rules():
new_git_repository(
name = "com_google_googletest",
remote = "https://github.com/google/googletest.git",
tag = "release-1.12.1",
)
if "nanobind" not in native.existing_rules():
new_git_repository(
name = "nanobind",
remote = "https://github.com/wjakob/nanobind.git",
tag = "v1.9.2",
build_file = "@//bindings/python:nanobind.BUILD",
recursive_init_submodules = True,
)
if "libpfm" not in native.existing_rules():
# Downloaded from v4.9.0 tag at https://sourceforge.net/p/perfmon2/libpfm4/ref/master/tags/
http_archive(
name = "libpfm",
build_file = str(Label("//tools:libpfm.BUILD.bazel")),
sha256 = "5da5f8872bde14b3634c9688d980f68bda28b510268723cc12973eedbab9fecc",
type = "tar.gz",
strip_prefix = "libpfm-4.11.0",
urls = ["https://sourceforge.net/projects/perfmon2/files/libpfm4/libpfm-4.11.0.tar.gz/download"],
)

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thirdparty/benchmark/bindings/python/google_benchmark/BUILD vendored
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@ -1,34 +0,0 @@
load("@nanobind_bazel//:build_defs.bzl", "nanobind_extension", "nanobind_stubgen")
load("@rules_python//python:defs.bzl", "py_library", "py_test")
py_library(
name = "google_benchmark",
srcs = ["__init__.py"],
visibility = ["//visibility:public"],
deps = [
":_benchmark",
],
)
nanobind_extension(
name = "_benchmark",
srcs = ["benchmark.cc"],
deps = ["//:benchmark"],
)
nanobind_stubgen(
name = "benchmark_stubgen",
marker_file = "bindings/python/google_benchmark/py.typed",
module = ":_benchmark",
)
py_test(
name = "example",
srcs = ["example.py"],
python_version = "PY3",
srcs_version = "PY3",
visibility = ["//visibility:public"],
deps = [
":google_benchmark",
],
)

136
thirdparty/benchmark/bindings/python/google_benchmark/__init__.py vendored
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@ -1,136 +0,0 @@
# Copyright 2020 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Python benchmarking utilities.
Example usage:
import google_benchmark as benchmark
@benchmark.register
def my_benchmark(state):
... # Code executed outside `while` loop is not timed.
while state:
... # Code executed within `while` loop is timed.
if __name__ == '__main__':
benchmark.main()
"""
import atexit
from google_benchmark import _benchmark
from google_benchmark._benchmark import (
Counter as Counter,
State as State,
kMicrosecond as kMicrosecond,
kMillisecond as kMillisecond,
kNanosecond as kNanosecond,
kSecond as kSecond,
o1 as o1,
oAuto as oAuto,
oLambda as oLambda,
oLogN as oLogN,
oN as oN,
oNCubed as oNCubed,
oNLogN as oNLogN,
oNone as oNone,
oNSquared as oNSquared,
)
__version__ = "1.9.5"
class __OptionMaker:
"""A stateless class to collect benchmark options.
Collect all decorator calls like @option.range(start=0, limit=1<<5).
"""
class Options:
"""Pure data class to store options calls, along with the benchmarked
function."""
def __init__(self, func):
self.func = func
self.builder_calls = []
@classmethod
def make(cls, func_or_options):
"""Make Options from Options or the benchmarked function."""
if isinstance(func_or_options, cls.Options):
return func_or_options
return cls.Options(func_or_options)
def __getattr__(self, builder_name):
"""Append option call in the Options."""
# The function that get returned on @option.range(start=0, limit=1<<5).
def __builder_method(*args, **kwargs):
# The decorator that get called, either with the benchmared function
# or the previous Options
def __decorator(func_or_options):
options = self.make(func_or_options)
options.builder_calls.append((builder_name, args, kwargs))
# The decorator returns Options so it is not technically a
# decorator and needs a final call to @register
return options
return __decorator
return __builder_method
# Alias for nicer API.
# We have to instantiate an object, even if stateless, to be able to use
# __getattr__ on option.range
option = __OptionMaker()
def register(undefined=None, *, name=None):
"""Register function for benchmarking."""
if undefined is None:
# Decorator is called without parenthesis so we return a decorator
return lambda f: register(f, name=name)
# We have either the function to benchmark (simple case) or an instance of
# Options (@option._ case).
options = __OptionMaker.make(undefined)
if name is None:
name = options.func.__name__
# We register the benchmark and reproduce all the @option._ calls onto the
# benchmark builder pattern
benchmark = _benchmark.RegisterBenchmark(name, options.func)
for name, args, kwargs in options.builder_calls[::-1]:
getattr(benchmark, name)(*args, **kwargs)
# return the benchmarked function because the decorator does not modify it
return options.func
def main(argv: list[str] | None = None) -> None:
import sys
_benchmark.Initialize(argv or sys.argv)
return _benchmark.RunSpecifiedBenchmarks()
# FIXME: can we rerun with disabled ASLR?
# Methods for use with custom main function.
initialize = _benchmark.Initialize
run_benchmarks = _benchmark.RunSpecifiedBenchmarks
add_custom_context = _benchmark.AddCustomContext
atexit.register(_benchmark.ClearRegisteredBenchmarks)

189
thirdparty/benchmark/bindings/python/google_benchmark/benchmark.cc vendored
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@ -1,189 +0,0 @@
// Benchmark for Python.
#include "benchmark/benchmark.h"
#include "nanobind/nanobind.h"
#include "nanobind/operators.h"
#include "nanobind/stl/bind_map.h"
#include "nanobind/stl/string.h"
#include "nanobind/stl/vector.h"
NB_MAKE_OPAQUE(benchmark::UserCounters);
namespace {
namespace nb = nanobind;
std::vector<std::string> Initialize(const std::vector<std::string>& argv) {
std::vector<char*> ptrs;
ptrs.reserve(argv.size());
for (auto& arg : argv) {
ptrs.push_back(const_cast<char*>(arg.c_str()));
}
if (!ptrs.empty()) {
// The `argv` pointers here become invalid when this function returns, but
// benchmark holds the pointer to `argv[0]`. We create a static copy of it
// so it persists, and replace the pointer below.
static std::string executable_name(argv[0]);
ptrs[0] = const_cast<char*>(executable_name.c_str());
}
int argc = static_cast<int>(argv.size());
benchmark::Initialize(&argc, ptrs.data());
std::vector<std::string> remaining_argv;
remaining_argv.reserve(argc);
for (int i = 0; i < argc; ++i) {
remaining_argv.emplace_back(ptrs[i]);
}
return remaining_argv;
}
benchmark::Benchmark* RegisterBenchmark(const std::string& name,
nb::callable f) {
return benchmark::RegisterBenchmark(
name, [f](benchmark::State& state) { f(&state); });
}
NB_MODULE(_benchmark, m) {
using benchmark::TimeUnit;
nb::enum_<TimeUnit>(m, "TimeUnit")
.value("kNanosecond", TimeUnit::kNanosecond)
.value("kMicrosecond", TimeUnit::kMicrosecond)
.value("kMillisecond", TimeUnit::kMillisecond)
.value("kSecond", TimeUnit::kSecond)
.export_values();
using benchmark::BigO;
nb::enum_<BigO>(m, "BigO")
.value("oNone", BigO::oNone)
.value("o1", BigO::o1)
.value("oN", BigO::oN)
.value("oNSquared", BigO::oNSquared)
.value("oNCubed", BigO::oNCubed)
.value("oLogN", BigO::oLogN)
.value("oNLogN", BigO::oNLogN)
.value("oAuto", BigO::oAuto)
.value("oLambda", BigO::oLambda)
.export_values();
using benchmark::Benchmark;
nb::class_<Benchmark>(m, "Benchmark")
// For methods returning a pointer to the current object, reference
// return policy is used to ask nanobind not to take ownership of the
// returned object and avoid calling delete on it.
// https://pybind11.readthedocs.io/en/stable/advanced/functions.html#return-value-policies
//
// For methods taking a const std::vector<...>&, a copy is created
// because a it is bound to a Python list.
// https://pybind11.readthedocs.io/en/stable/advanced/cast/stl.html
.def("unit", &Benchmark::Unit, nb::rv_policy::reference)
.def("arg", &Benchmark::Arg, nb::rv_policy::reference)
.def("args", &Benchmark::Args, nb::rv_policy::reference)
.def("range", &Benchmark::Range, nb::rv_policy::reference,
nb::arg("start"), nb::arg("limit"))
.def("dense_range", &Benchmark::DenseRange, nb::rv_policy::reference,
nb::arg("start"), nb::arg("limit"), nb::arg("step") = 1)
.def("ranges", &Benchmark::Ranges, nb::rv_policy::reference)
.def("args_product", &Benchmark::ArgsProduct, nb::rv_policy::reference)
.def("arg_name", &Benchmark::ArgName, nb::rv_policy::reference)
.def("arg_names", &Benchmark::ArgNames, nb::rv_policy::reference)
.def("range_pair", &Benchmark::RangePair, nb::rv_policy::reference,
nb::arg("lo1"), nb::arg("hi1"), nb::arg("lo2"), nb::arg("hi2"))
.def("range_multiplier", &Benchmark::RangeMultiplier,
nb::rv_policy::reference)
.def("min_time", &Benchmark::MinTime, nb::rv_policy::reference)
.def("min_warmup_time", &Benchmark::MinWarmUpTime,
nb::rv_policy::reference)
.def("iterations", &Benchmark::Iterations, nb::rv_policy::reference)
.def("repetitions", &Benchmark::Repetitions, nb::rv_policy::reference)
.def("report_aggregates_only", &Benchmark::ReportAggregatesOnly,
nb::rv_policy::reference, nb::arg("value") = true)
.def("display_aggregates_only", &Benchmark::DisplayAggregatesOnly,
nb::rv_policy::reference, nb::arg("value") = true)
.def("measure_process_cpu_time", &Benchmark::MeasureProcessCPUTime,
nb::rv_policy::reference)
.def("use_real_time", &Benchmark::UseRealTime, nb::rv_policy::reference)
.def("use_manual_time", &Benchmark::UseManualTime,
nb::rv_policy::reference)
.def(
"complexity",
(Benchmark * (Benchmark::*)(benchmark::BigO)) & Benchmark::Complexity,
nb::rv_policy::reference, nb::arg("complexity") = benchmark::oAuto);
using benchmark::Counter;
nb::class_<Counter> py_counter(m, "Counter");
nb::enum_<Counter::Flags>(py_counter, "Flags", nb::is_arithmetic(),
nb::is_flag())
.value("kDefaults", Counter::Flags::kDefaults)
.value("kIsRate", Counter::Flags::kIsRate)
.value("kAvgThreads", Counter::Flags::kAvgThreads)
.value("kAvgThreadsRate", Counter::Flags::kAvgThreadsRate)
.value("kIsIterationInvariant", Counter::Flags::kIsIterationInvariant)
.value("kIsIterationInvariantRate",
Counter::Flags::kIsIterationInvariantRate)
.value("kAvgIterations", Counter::Flags::kAvgIterations)
.value("kAvgIterationsRate", Counter::Flags::kAvgIterationsRate)
.value("kInvert", Counter::Flags::kInvert)
.export_values();
nb::enum_<Counter::OneK>(py_counter, "OneK")
.value("kIs1000", Counter::OneK::kIs1000)
.value("kIs1024", Counter::OneK::kIs1024)
.export_values();
py_counter
.def(nb::init<double, Counter::Flags, Counter::OneK>(),
nb::arg("value") = 0., nb::arg("flags") = Counter::kDefaults,
nb::arg("k") = Counter::kIs1000)
.def("__init__",
([](Counter* c, double value) { new (c) Counter(value); }))
.def_rw("value", &Counter::value)
.def_rw("flags", &Counter::flags)
.def_rw("oneK", &Counter::oneK)
.def(nb::init_implicit<double>());
nb::implicitly_convertible<nb::int_, Counter>();
nb::bind_map<benchmark::UserCounters>(m, "UserCounters");
using benchmark::State;
nb::class_<State>(m, "State")
.def("__bool__", &State::KeepRunning)
.def_prop_ro("keep_running", &State::KeepRunning)
.def("pause_timing", &State::PauseTiming)
.def("resume_timing", &State::ResumeTiming)
.def("skip_with_error", &State::SkipWithError)
.def_prop_ro("error_occurred", &State::error_occurred)
.def("set_iteration_time", &State::SetIterationTime)
.def_prop_rw("bytes_processed", &State::bytes_processed,
&State::SetBytesProcessed)
.def_prop_rw("complexity_n", &State::complexity_length_n,
&State::SetComplexityN)
.def_prop_rw("items_processed", &State::items_processed,
&State::SetItemsProcessed)
.def("set_label", &State::SetLabel)
.def(
"range",
[](const State& state, std::size_t pos = 0) -> int64_t {
if (pos < state.range_size()) {
return state.range(pos);
}
throw nb::index_error("pos is out of range");
},
nb::arg("pos") = 0)
.def_prop_ro("iterations", &State::iterations)
.def_prop_ro("name", &State::name)
.def_rw("counters", &State::counters)
.def_prop_ro("thread_index", &State::thread_index)
.def_prop_ro("threads", &State::threads);
m.def("Initialize", Initialize);
m.def("RegisterBenchmark", RegisterBenchmark, nb::rv_policy::reference);
m.def("RunSpecifiedBenchmarks",
[]() { benchmark::RunSpecifiedBenchmarks(); });
m.def("ClearRegisteredBenchmarks", benchmark::ClearRegisteredBenchmarks);
m.def("AddCustomContext", benchmark::AddCustomContext, nb::arg("key"),
nb::arg("value"),
"Add a key-value pair to output as part of the context stanza in the "
"report.");
};
} // namespace

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@ -1,142 +0,0 @@
# Copyright 2020 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Example of Python using C++ benchmark framework.
To run this example, you must first install the `google_benchmark` Python
package.
To install using `setup.py`, download and extract the `google_benchmark` source.
In the extracted directory, execute:
python setup.py install
"""
import random
import sys
import time
import google_benchmark as benchmark
from google_benchmark import Counter
@benchmark.register
def empty(state):
while state:
pass
@benchmark.register
def sum_million(state):
while state:
sum(range(1_000_000))
@benchmark.register
def pause_timing(state):
"""Pause timing every iteration."""
while state:
# Construct a list of random ints every iteration without timing it
state.pause_timing()
random_list = [random.randint(0, 100) for _ in range(100)]
state.resume_timing()
# Time the in place sorting algorithm
random_list.sort()
@benchmark.register
def skipped(state):
if True: # Test some predicate here.
state.skip_with_error("some error")
return # NOTE: You must explicitly return, or benchmark will continue.
# Benchmark code would be here.
@benchmark.register
@benchmark.option.use_manual_time()
def manual_timing(state):
while state:
# Manually count Python CPU time
start = time.perf_counter() # perf_counter_ns() in Python 3.7+
# Something to benchmark
time.sleep(0.01)
end = time.perf_counter()
state.set_iteration_time(end - start)
@benchmark.register
def custom_counters(state):
"""Collect custom metric using benchmark.Counter."""
num_foo = 0.0
while state:
# Benchmark some code here
# Collect some custom metric named foo
num_foo += 0.13
# Automatic Counter from numbers.
state.counters["foo"] = num_foo
# Set a counter as a rate.
state.counters["foo_rate"] = Counter(num_foo, Counter.kIsRate)
# Set a counter as an inverse of rate.
state.counters["foo_inv_rate"] = Counter(
num_foo, Counter.kIsRate | Counter.kInvert
)
# Set a counter as a thread-average quantity.
state.counters["foo_avg"] = Counter(num_foo, Counter.kAvgThreads)
# There's also a combined flag:
state.counters["foo_avg_rate"] = Counter(num_foo, Counter.kAvgThreadsRate)
@benchmark.register
@benchmark.option.measure_process_cpu_time()
@benchmark.option.use_real_time()
def with_options(state):
while state:
sum(range(1_000_000))
@benchmark.register(name="sum_million_microseconds")
@benchmark.option.unit(benchmark.kMicrosecond)
def with_options2(state):
while state:
sum(range(1_000_000))
@benchmark.register
@benchmark.option.arg(100)
@benchmark.option.arg(1000)
def passing_argument(state):
while state:
sum(range(state.range(0)))
@benchmark.register
@benchmark.option.range(8, limit=8 << 10)
def using_range(state):
while state:
sum(range(state.range(0)))
@benchmark.register
@benchmark.option.range_multiplier(2)
@benchmark.option.range(1 << 10, 1 << 18)
@benchmark.option.complexity(benchmark.oN)
def computing_complexity(state):
while state:
sum(range(state.range(0)))
state.complexity_n = state.range(0)
if __name__ == "__main__":
benchmark.add_custom_context("python", sys.version)
benchmark.main()

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@ -1,78 +0,0 @@
# - Adds a compiler flag if it is supported by the compiler
#
# This function checks that the supplied compiler flag is supported and then
# adds it to the corresponding compiler flags
#
# add_cxx_compiler_flag(<FLAG> [<VARIANT>])
#
# - Example
#
# include(AddCXXCompilerFlag)
# add_cxx_compiler_flag(-Wall)
# add_cxx_compiler_flag(-no-strict-aliasing RELEASE)
# Requires CMake 2.6+
if(__add_cxx_compiler_flag)
return()
endif()
set(__add_cxx_compiler_flag INCLUDED)
include(CheckCXXCompilerFlag)
function(mangle_compiler_flag FLAG OUTPUT)
string(TOUPPER "HAVE_CXX_FLAG_${FLAG}" SANITIZED_FLAG)
string(REPLACE "+" "X" SANITIZED_FLAG ${SANITIZED_FLAG})
string(REGEX REPLACE "[^A-Za-z_0-9]" "_" SANITIZED_FLAG ${SANITIZED_FLAG})
string(REGEX REPLACE "_+" "_" SANITIZED_FLAG ${SANITIZED_FLAG})
set(${OUTPUT} "${SANITIZED_FLAG}" PARENT_SCOPE)
endfunction(mangle_compiler_flag)
function(add_cxx_compiler_flag FLAG)
mangle_compiler_flag("${FLAG}" MANGLED_FLAG)
set(OLD_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${FLAG}")
check_cxx_compiler_flag("${FLAG}" ${MANGLED_FLAG})
set(CMAKE_REQUIRED_FLAGS "${OLD_CMAKE_REQUIRED_FLAGS}")
if(${MANGLED_FLAG})
if(ARGC GREATER 1)
set(VARIANT ${ARGV1})
string(TOUPPER "_${VARIANT}" VARIANT)
else()
set(VARIANT "")
endif()
set(CMAKE_CXX_FLAGS${VARIANT} "${CMAKE_CXX_FLAGS${VARIANT}} ${BENCHMARK_CXX_FLAGS${VARIANT}} ${FLAG}" PARENT_SCOPE)
endif()
endfunction()
function(add_required_cxx_compiler_flag FLAG)
mangle_compiler_flag("${FLAG}" MANGLED_FLAG)
set(OLD_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${FLAG}")
check_cxx_compiler_flag("${FLAG}" ${MANGLED_FLAG})
set(CMAKE_REQUIRED_FLAGS "${OLD_CMAKE_REQUIRED_FLAGS}")
if(${MANGLED_FLAG})
if(ARGC GREATER 1)
set(VARIANT ${ARGV1})
string(TOUPPER "_${VARIANT}" VARIANT)
else()
set(VARIANT "")
endif()
set(CMAKE_CXX_FLAGS${VARIANT} "${CMAKE_CXX_FLAGS${VARIANT}} ${FLAG}" PARENT_SCOPE)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${FLAG}" PARENT_SCOPE)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${FLAG}" PARENT_SCOPE)
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} ${FLAG}" PARENT_SCOPE)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${FLAG}" PARENT_SCOPE)
else()
message(FATAL_ERROR "Required flag '${FLAG}' is not supported by the compiler")
endif()
endfunction()
function(check_cxx_warning_flag FLAG)
mangle_compiler_flag("${FLAG}" MANGLED_FLAG)
set(OLD_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
# Add -Werror to ensure the compiler generates an error if the warning flag
# doesn't exist.
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror ${FLAG}")
check_cxx_compiler_flag("${FLAG}" ${MANGLED_FLAG})
set(CMAKE_REQUIRED_FLAGS "${OLD_CMAKE_REQUIRED_FLAGS}")
endfunction()

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# - Compile and run code to check for C++ features
#
# This functions compiles a source file under the `cmake` folder
# and adds the corresponding `HAVE_[FILENAME]` flag to the CMake
# environment
#
# cxx_feature_check(<FLAG> [<VARIANT>])
#
# - Example
#
# include(CXXFeatureCheck)
# cxx_feature_check(STD_REGEX)
# Requires CMake 2.8.12+
if(__cxx_feature_check)
return()
endif()
set(__cxx_feature_check INCLUDED)
option(CXXFEATURECHECK_DEBUG OFF)
function(cxx_feature_check FILE)
string(TOLOWER ${FILE} FILE)
string(TOUPPER ${FILE} VAR)
string(TOUPPER "HAVE_${VAR}" FEATURE)
if (DEFINED HAVE_${VAR})
if(HAVE_${VAR})
add_definitions(-DHAVE_${VAR})
endif()
return()
endif()
set(FEATURE_CHECK_CMAKE_FLAGS ${BENCHMARK_CXX_LINKER_FLAGS})
if (ARGC GREATER 1)
message(STATUS "Enabling additional flags: ${ARGV1}")
list(APPEND FEATURE_CHECK_CMAKE_FLAGS ${ARGV1})
endif()
if (NOT DEFINED COMPILE_${FEATURE})
if(CMAKE_CROSSCOMPILING)
message(STATUS "Cross-compiling to test ${FEATURE}")
try_compile(COMPILE_${FEATURE}
${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/cmake/${FILE}.cpp
CXX_STANDARD 17
CXX_STANDARD_REQUIRED ON
CMAKE_FLAGS ${FEATURE_CHECK_CMAKE_FLAGS}
LINK_LIBRARIES ${BENCHMARK_CXX_LIBRARIES}
OUTPUT_VARIABLE COMPILE_OUTPUT_VAR)
if(COMPILE_${FEATURE})
message(WARNING
"If you see build failures due to cross compilation, try setting HAVE_${VAR} to 0")
set(RUN_${FEATURE} 0 CACHE INTERNAL "")
else()
set(RUN_${FEATURE} 1 CACHE INTERNAL "")
endif()
else()
message(STATUS "Compiling and running to test ${FEATURE}")
try_run(RUN_${FEATURE} COMPILE_${FEATURE}
${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/cmake/${FILE}.cpp
CXX_STANDARD 17
CXX_STANDARD_REQUIRED ON
CMAKE_FLAGS ${FEATURE_CHECK_CMAKE_FLAGS}
LINK_LIBRARIES ${BENCHMARK_CXX_LIBRARIES}
COMPILE_OUTPUT_VARIABLE COMPILE_OUTPUT_VAR)
endif()
endif()
if(COMPILE_${FEATURE})
if(DEFINED RUN_${FEATURE} AND RUN_${FEATURE} EQUAL 0)
message(STATUS "Performing Test ${FEATURE} -- success")
set(HAVE_${VAR} 1 CACHE INTERNAL "")
add_definitions(-DHAVE_${VAR})
else()
message(STATUS "Performing Test ${FEATURE} -- compiled but failed to run")
set(HAVE_${VAR} 0 CACHE INTERNAL "")
endif()
else()
if(CXXFEATURECHECK_DEBUG)
message(STATUS "Performing Test ${FEATURE} -- failed to compile: ${COMPILE_OUTPUT_VAR}")
else()
message(STATUS "Performing Test ${FEATURE} -- failed to compile")
endif()
set(HAVE_${VAR} 0 CACHE INTERNAL "")
endif()
endfunction()

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thirdparty/benchmark/cmake/Config.cmake.in vendored
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@ -1,12 +0,0 @@
@PACKAGE_INIT@
include (CMakeFindDependencyMacro)
find_dependency (Threads)
if (@BENCHMARK_ENABLE_LIBPFM@)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
find_dependency (PFM)
endif()
include("${CMAKE_CURRENT_LIST_DIR}/@targets_export_name@.cmake")

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thirdparty/benchmark/cmake/GetGitVersion.cmake vendored
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@ -1,36 +0,0 @@
# - Returns a version string from Git tags
#
# This function inspects the annotated git tags for the project and returns a string
# into a CMake variable
#
# get_git_version(<var>)
#
# - Example
#
# include(GetGitVersion)
# get_git_version(GIT_VERSION)
#
# Requires CMake 2.8.11+
find_package(Git)
if(__get_git_version)
return()
endif()
set(__get_git_version INCLUDED)
function(get_git_version var)
if(GIT_EXECUTABLE)
execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --match "v[0-9]*.[0-9]*.[0-9]*" --abbrev=8 --dirty
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
RESULT_VARIABLE status
OUTPUT_VARIABLE GIT_VERSION
ERROR_QUIET)
if(status)
set(GIT_VERSION "v0.0.0")
endif()
else()
set(GIT_VERSION "v0.0.0")
endif()
set(${var} ${GIT_VERSION} PARENT_SCOPE)
endfunction()

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# Download and unpack googletest at configure time
set(GOOGLETEST_PREFIX "${benchmark_BINARY_DIR}/third_party/googletest")
configure_file(${benchmark_SOURCE_DIR}/cmake/GoogleTest.cmake.in ${GOOGLETEST_PREFIX}/CMakeLists.txt @ONLY)
set(GOOGLETEST_PATH "${CMAKE_CURRENT_SOURCE_DIR}/googletest" CACHE PATH "") # Mind the quotes
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
-DALLOW_DOWNLOADING_GOOGLETEST=${BENCHMARK_DOWNLOAD_DEPENDENCIES} -DGOOGLETEST_PATH:PATH=${GOOGLETEST_PATH} .
RESULT_VARIABLE result
WORKING_DIRECTORY ${GOOGLETEST_PREFIX}
)
if(result)
message(FATAL_ERROR "CMake step for googletest failed: ${result}")
endif()
execute_process(
COMMAND ${CMAKE_COMMAND} --build .
RESULT_VARIABLE result
WORKING_DIRECTORY ${GOOGLETEST_PREFIX}
)
if(result)
message(FATAL_ERROR "Build step for googletest failed: ${result}")
endif()
# Prevent overriding the parent project's compiler/linker
# settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
include(${GOOGLETEST_PREFIX}/googletest-paths.cmake)
# Add googletest directly to our build. This defines
# the gtest and gtest_main targets.
add_subdirectory(${GOOGLETEST_SOURCE_DIR}
${GOOGLETEST_BINARY_DIR}
EXCLUDE_FROM_ALL)
# googletest doesn't seem to want to stay build warning clean so let's not hurt ourselves.
if (MSVC)
target_compile_options(gtest PRIVATE "/wd4244" "/wd4722")
target_compile_options(gtest_main PRIVATE "/wd4244" "/wd4722")
target_compile_options(gmock PRIVATE "/wd4244" "/wd4722")
target_compile_options(gmock_main PRIVATE "/wd4244" "/wd4722")
else()
target_compile_options(gtest PRIVATE "-w")
target_compile_options(gtest_main PRIVATE "-w")
target_compile_options(gmock PRIVATE "-w")
target_compile_options(gmock_main PRIVATE "-w")
endif()
if(NOT DEFINED GTEST_COMPILE_COMMANDS)
set(GTEST_COMPILE_COMMANDS ON)
endif()
set_target_properties(gtest PROPERTIES INTERFACE_SYSTEM_INCLUDE_DIRECTORIES $<TARGET_PROPERTY:gtest,INTERFACE_INCLUDE_DIRECTORIES> EXPORT_COMPILE_COMMANDS ${GTEST_COMPILE_COMMANDS})
set_target_properties(gtest_main PROPERTIES INTERFACE_SYSTEM_INCLUDE_DIRECTORIES $<TARGET_PROPERTY:gtest_main,INTERFACE_INCLUDE_DIRECTORIES> EXPORT_COMPILE_COMMANDS ${GTEST_COMPILE_COMMANDS})
set_target_properties(gmock PROPERTIES INTERFACE_SYSTEM_INCLUDE_DIRECTORIES $<TARGET_PROPERTY:gmock,INTERFACE_INCLUDE_DIRECTORIES> EXPORT_COMPILE_COMMANDS ${GTEST_COMPILE_COMMANDS})
set_target_properties(gmock_main PROPERTIES INTERFACE_SYSTEM_INCLUDE_DIRECTORIES $<TARGET_PROPERTY:gmock_main,INTERFACE_INCLUDE_DIRECTORIES> EXPORT_COMPILE_COMMANDS ${GTEST_COMPILE_COMMANDS})

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thirdparty/benchmark/cmake/GoogleTest.cmake.in vendored
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@ -1,60 +0,0 @@
cmake_minimum_required (VERSION 3.13...3.22)
project(googletest-download NONE)
# Enable ExternalProject CMake module
include(ExternalProject)
option(ALLOW_DOWNLOADING_GOOGLETEST "If googletest src tree is not found in location specified by GOOGLETEST_PATH, do fetch the archive from internet" OFF)
set(GOOGLETEST_PATH "/usr/src/googletest" CACHE PATH
"Path to the googletest root tree. Should contain googletest and googlemock subdirs. And CMakeLists.txt in root, and in both of these subdirs")
# Download and install GoogleTest
message(STATUS "Looking for Google Test sources")
message(STATUS "Looking for Google Test sources in ${GOOGLETEST_PATH}")
if(EXISTS "${GOOGLETEST_PATH}" AND IS_DIRECTORY "${GOOGLETEST_PATH}" AND EXISTS "${GOOGLETEST_PATH}/CMakeLists.txt" AND
EXISTS "${GOOGLETEST_PATH}/googletest" AND IS_DIRECTORY "${GOOGLETEST_PATH}/googletest" AND EXISTS "${GOOGLETEST_PATH}/googletest/CMakeLists.txt" AND
EXISTS "${GOOGLETEST_PATH}/googlemock" AND IS_DIRECTORY "${GOOGLETEST_PATH}/googlemock" AND EXISTS "${GOOGLETEST_PATH}/googlemock/CMakeLists.txt")
message(STATUS "Found Google Test in ${GOOGLETEST_PATH}")
ExternalProject_Add(
googletest
PREFIX "${CMAKE_BINARY_DIR}"
DOWNLOAD_DIR "${CMAKE_BINARY_DIR}/download"
SOURCE_DIR "${GOOGLETEST_PATH}" # use existing src dir.
BINARY_DIR "${CMAKE_BINARY_DIR}/build"
CONFIGURE_COMMAND ""
BUILD_COMMAND ""
INSTALL_COMMAND ""
TEST_COMMAND ""
)
else()
if(NOT ALLOW_DOWNLOADING_GOOGLETEST)
message(SEND_ERROR "Did not find Google Test sources! Either pass correct path in GOOGLETEST_PATH, or enable BENCHMARK_DOWNLOAD_DEPENDENCIES, or disable BENCHMARK_USE_BUNDLED_GTEST, or disable BENCHMARK_ENABLE_GTEST_TESTS / BENCHMARK_ENABLE_TESTING.")
return()
else()
message(STATUS "Did not find Google Test sources! Fetching from web...")
ExternalProject_Add(
googletest
GIT_REPOSITORY https://github.com/google/googletest.git
GIT_TAG "v1.15.2"
GIT_SHALLOW "ON"
PREFIX "${CMAKE_BINARY_DIR}"
STAMP_DIR "${CMAKE_BINARY_DIR}/stamp"
DOWNLOAD_DIR "${CMAKE_BINARY_DIR}/download"
SOURCE_DIR "${CMAKE_BINARY_DIR}/src"
BINARY_DIR "${CMAKE_BINARY_DIR}/build"
CONFIGURE_COMMAND ""
BUILD_COMMAND ""
INSTALL_COMMAND ""
TEST_COMMAND ""
)
endif()
endif()
ExternalProject_Get_Property(googletest SOURCE_DIR BINARY_DIR)
file(WRITE googletest-paths.cmake
"set(GOOGLETEST_SOURCE_DIR \"${SOURCE_DIR}\")
set(GOOGLETEST_BINARY_DIR \"${BINARY_DIR}\")
")

16
thirdparty/benchmark/cmake/Modules/FindLLVMAr.cmake vendored
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@ -1,16 +0,0 @@
include(FeatureSummary)
find_program(LLVMAR_EXECUTABLE
NAMES llvm-ar
DOC "The llvm-ar executable"
)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LLVMAr
DEFAULT_MSG
LLVMAR_EXECUTABLE)
SET_PACKAGE_PROPERTIES(LLVMAr PROPERTIES
URL https://llvm.org/docs/CommandGuide/llvm-ar.html
DESCRIPTION "create, modify, and extract from archives"
)

16
thirdparty/benchmark/cmake/Modules/FindLLVMNm.cmake vendored
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@ -1,16 +0,0 @@
include(FeatureSummary)
find_program(LLVMNM_EXECUTABLE
NAMES llvm-nm
DOC "The llvm-nm executable"
)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LLVMNm
DEFAULT_MSG
LLVMNM_EXECUTABLE)
SET_PACKAGE_PROPERTIES(LLVMNm PROPERTIES
URL https://llvm.org/docs/CommandGuide/llvm-nm.html
DESCRIPTION "list LLVM bitcode and object file’s symbol table"
)

15
thirdparty/benchmark/cmake/Modules/FindLLVMRanLib.cmake vendored
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@ -1,15 +0,0 @@
include(FeatureSummary)
find_program(LLVMRANLIB_EXECUTABLE
NAMES llvm-ranlib
DOC "The llvm-ranlib executable"
)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LLVMRanLib
DEFAULT_MSG
LLVMRANLIB_EXECUTABLE)
SET_PACKAGE_PROPERTIES(LLVMRanLib PROPERTIES
DESCRIPTION "generate index for LLVM archive"
)

28
thirdparty/benchmark/cmake/Modules/FindPFM.cmake vendored
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@ -1,28 +0,0 @@
# If successful, the following variables will be defined:
# PFM_FOUND.
# PFM_LIBRARIES
# PFM_INCLUDE_DIRS
# the following target will be defined:
# PFM::libpfm
include(FeatureSummary)
include(FindPackageHandleStandardArgs)
set_package_properties(PFM PROPERTIES
URL http://perfmon2.sourceforge.net/
DESCRIPTION "A helper library to develop monitoring tools"
PURPOSE "Used to program specific performance monitoring events")
find_library(PFM_LIBRARY NAMES pfm)
find_path(PFM_INCLUDE_DIR NAMES perfmon/pfmlib.h)
find_package_handle_standard_args(PFM REQUIRED_VARS PFM_LIBRARY PFM_INCLUDE_DIR)
if (PFM_FOUND AND NOT TARGET PFM::libpfm)
add_library(PFM::libpfm UNKNOWN IMPORTED)
set_target_properties(PFM::libpfm PROPERTIES
IMPORTED_LOCATION "${PFM_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${PFM_INCLUDE_DIR}")
endif()
mark_as_advanced(PFM_LIBRARY PFM_INCLUDE_DIR)

12
thirdparty/benchmark/cmake/benchmark.pc.in vendored
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@ -1,12 +0,0 @@
prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=${prefix}
libdir=@BENCHMARK_PKG_CONFIG_LIBDIR@
includedir=@BENCHMARK_PKG_CONFIG_INCLUDEDIR@
Name: @PROJECT_NAME@
Description: Google microbenchmark framework
Version: @NORMALIZED_VERSION@
Libs: -L${libdir} -lbenchmark
Libs.private: -lpthread @BENCHMARK_PRIVATE_LINK_LIBRARIES@
Cflags: -I${includedir}

9
thirdparty/benchmark/cmake/benchmark_main.pc.in vendored
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@ -1,9 +0,0 @@
prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=${prefix}
libdir=@BENCHMARK_PKG_CONFIG_LIBDIR@
Name: @PROJECT_NAME@
Description: Google microbenchmark framework (with main() function)
Version: @NORMALIZED_VERSION@
Requires: benchmark
Libs: -L${libdir} -lbenchmark_main

12
thirdparty/benchmark/cmake/gnu_posix_regex.cpp vendored
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@ -1,12 +0,0 @@
#include <gnuregex.h>
#include <string>
int main() {
std::string str = "test0159";
regex_t re;
int ec = regcomp(&re, "^[a-z]+[0-9]+$", REG_EXTENDED | REG_NOSUB);
if (ec != 0) {
return ec;
}
return regexec(&re, str.c_str(), 0, nullptr, 0) ? -1 : 0;
}

8
thirdparty/benchmark/cmake/llvm-toolchain.cmake vendored
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@ -1,8 +0,0 @@
find_package(LLVMAr REQUIRED)
set(CMAKE_AR "${LLVMAR_EXECUTABLE}" CACHE FILEPATH "" FORCE)
find_package(LLVMNm REQUIRED)
set(CMAKE_NM "${LLVMNM_EXECUTABLE}" CACHE FILEPATH "" FORCE)
find_package(LLVMRanLib REQUIRED)
set(CMAKE_RANLIB "${LLVMRANLIB_EXECUTABLE}" CACHE FILEPATH "" FORCE)

14
thirdparty/benchmark/cmake/posix_regex.cpp vendored
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@ -1,14 +0,0 @@
#include <regex.h>
#include <string>
int main() {
std::string str = "test0159";
regex_t re;
int ec = regcomp(&re, "^[a-z]+[0-9]+$", REG_EXTENDED | REG_NOSUB);
if (ec != 0) {
return ec;
}
int ret = regexec(&re, str.c_str(), 0, nullptr, 0) ? -1 : 0;
regfree(&re);
return ret;
}

19
thirdparty/benchmark/cmake/pthread_affinity.cpp vendored
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@ -1,19 +0,0 @@
#include <pthread.h>
#ifdef __FreeBSD__
#include <pthread_np.h>
#endif
int main() {
cpu_set_t set;
CPU_ZERO(&set);
for (int i = 0; i < CPU_SETSIZE; ++i) {
CPU_SET(i, &set);
CPU_CLR(i, &set);
}
pthread_t self = pthread_self();
int ret;
ret = pthread_getaffinity_np(self, sizeof(set), &set);
if (ret != 0) return ret;
ret = pthread_setaffinity_np(self, sizeof(set), &set);
if (ret != 0) return ret;
return 0;
}

3
thirdparty/benchmark/cmake/split_list.cmake vendored
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@ -1,3 +0,0 @@
macro(split_list listname)
string(REPLACE ";" " " ${listname} "${${listname}}")
endmacro()

10
thirdparty/benchmark/cmake/std_regex.cpp vendored
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@ -1,10 +0,0 @@
#include <regex>
#include <string>
int main() {
const std::string str = "test0159";
std::regex re;
re = std::regex("^[a-z]+[0-9]+$",
std::regex_constants::extended | std::regex_constants::nosubs);
return std::regex_search(str, re) ? 0 : -1;
}

7
thirdparty/benchmark/cmake/steady_clock.cpp vendored
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@ -1,7 +0,0 @@
#include <chrono>
int main() {
typedef std::chrono::steady_clock Clock;
Clock::time_point tp = Clock::now();
((void)tp);
}

25
thirdparty/benchmark/cmake/thread_safety_attributes.cpp vendored
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@ -1,25 +0,0 @@
#if defined(__clang__)
#define THREAD_ANNOTATION_ATTRIBUTE_(x) __attribute__((x))
#else
#define THREAD_ANNOTATION_ATTRIBUTE_(x)
#endif
#define CAPABILITY(x) THREAD_ANNOTATION_ATTRIBUTE_(capability(x))
#define ACQUIRE() THREAD_ANNOTATION_ATTRIBUTE_(acquire_capability())
#define RELEASE() THREAD_ANNOTATION_ATTRIBUTE_(release_capability())
class CAPABILITY("mutex") Mutex {
public:
void lock() ACQUIRE();
void unlock() RELEASE();
};
void Mutex::lock() ACQUIRE() {}
void Mutex::unlock() RELEASE() {}
int main() {
Mutex m;
m.lock();
m.unlock();
return 0;
}

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# Assembly Tests
The Benchmark library provides a number of functions whose primary
purpose in to affect assembly generation, including `DoNotOptimize`
and `ClobberMemory`. In addition there are other functions,
such as `KeepRunning`, for which generating good assembly is paramount.
For these functions it's important to have tests that verify the
correctness and quality of the implementation. This requires testing
the code generated by the compiler.
This document describes how the Benchmark library tests compiler output,
as well as how to properly write new tests.
## Anatomy of a Test
Writing a test has two steps:
* Write the code you want to generate assembly for.
* Add `// CHECK` lines to match against the verified assembly.
Example:
```c++
// CHECK-LABEL: test_add:
extern "C" int test_add() {
extern int ExternInt;
return ExternInt + 1;
// CHECK: movl ExternInt(%rip), %eax
// CHECK: addl %eax
// CHECK: ret
}
```
#### LLVM Filecheck
[LLVM's Filecheck](https://llvm.org/docs/CommandGuide/FileCheck.html)
is used to test the generated assembly against the `// CHECK` lines
specified in the tests source file. Please see the documentation
linked above for information on how to write `CHECK` directives.
#### Tips and Tricks:
* Tests should match the minimal amount of output required to establish
correctness. `CHECK` directives don't have to match on the exact next line
after the previous match, so tests should omit checks for unimportant
bits of assembly. ([`CHECK-NEXT`](https://llvm.org/docs/CommandGuide/FileCheck.html#the-check-next-directive)
can be used to ensure a match occurs exactly after the previous match).
* The tests are compiled with `-O3 -g0`. So we're only testing the
optimized output.
* The assembly output is further cleaned up using `tools/strip_asm.py`.
This removes comments, assembler directives, and unused labels before
the test is run.
* The generated and stripped assembly file for a test is output under
`<build-directory>/test/<test-name>.s`
* Filecheck supports using [`CHECK` prefixes](https://llvm.org/docs/CommandGuide/FileCheck.html#cmdoption-check-prefixes)
to specify lines that should only match in certain situations.
The Benchmark tests use `CHECK-CLANG` and `CHECK-GNU` for lines that
are only expected to match Clang or GCC's output respectively. Normal
`CHECK` lines match against all compilers. (Note: `CHECK-NOT` and
`CHECK-LABEL` are NOT prefixes. They are versions of non-prefixed
`CHECK` lines)
* Use `extern "C"` to disable name mangling for specific functions. This
makes them easier to name in the `CHECK` lines.
## Problems Writing Portable Tests
Writing tests which check the code generated by a compiler are
inherently non-portable. Different compilers and even different compiler
versions may generate entirely different code. The Benchmark tests
must tolerate this.
LLVM Filecheck provides a number of mechanisms to help write
"more portable" tests; including [matching using regular expressions](https://llvm.org/docs/CommandGuide/FileCheck.html#filecheck-pattern-matching-syntax),
allowing the creation of [named variables](https://llvm.org/docs/CommandGuide/FileCheck.html#filecheck-variables)
for later matching, and [checking non-sequential matches](https://llvm.org/docs/CommandGuide/FileCheck.html#the-check-dag-directive).
#### Capturing Variables
For example, say GCC stores a variable in a register but Clang stores
it in memory. To write a test that tolerates both cases we "capture"
the destination of the store, and then use the captured expression
to write the remainder of the test.
```c++
// CHECK-LABEL: test_div_no_op_into_shr:
extern "C" void test_div_no_op_into_shr(int value) {
int divisor = 2;
benchmark::DoNotOptimize(divisor); // hide the value from the optimizer
return value / divisor;
// CHECK: movl $2, [[DEST:.*]]
// CHECK: idivl [[DEST]]
// CHECK: ret
}
```
#### Using Regular Expressions to Match Differing Output
Often tests require testing assembly lines which may subtly differ
between compilers or compiler versions. A common example of this
is matching stack frame addresses. In this case regular expressions
can be used to match the differing bits of output. For example:
<!-- {% raw %} -->
```c++
int ExternInt;
struct Point { int x, y, z; };
// CHECK-LABEL: test_store_point:
extern "C" void test_store_point() {
Point p{ExternInt, ExternInt, ExternInt};
benchmark::DoNotOptimize(p);
// CHECK: movl ExternInt(%rip), %eax
// CHECK: movl %eax, -{{[0-9]+}}(%rsp)
// CHECK: movl %eax, -{{[0-9]+}}(%rsp)
// CHECK: movl %eax, -{{[0-9]+}}(%rsp)
// CHECK: ret
}
```
<!-- {% endraw %} -->
## Current Requirements and Limitations
The tests require Filecheck to be installed along the `PATH` of the
build machine. Otherwise the tests will be disabled.
Additionally, as mentioned in the previous section, codegen tests are
inherently non-portable. Currently the tests are limited to:
* x86_64 targets.
* Compiled with GCC or Clang
Further work could be done, at least on a limited basis, to extend the
tests to other architectures and compilers (using `CHECK` prefixes).
Furthermore, the tests fail for builds which specify additional flags
that modify code generation, including `--coverage` or `-fsanitize=`.

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theme: jekyll-theme-minimal
logo: /assets/images/icon_black.png
show_downloads: true

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# Build tool dependency policy
We follow the [Foundational C++ support policy](https://opensource.google/documentation/policies/cplusplus-support) for our build tools. In
particular the ["Build Systems" section](https://opensource.google/documentation/policies/cplusplus-support#build-systems).
## CMake
The current supported version is CMake 3.13 as of 2024-10-24. Most modern
distributions include newer versions, for example:
* Ubuntu 20.04 provides CMake 3.16.3
* Debian 11.4 provides CMake 3.18.4
* Ubuntu 22.04 provides CMake 3.22.1
## Python
The Python bindings require Python 3.10+ as of v1.9.0 (2024-08-16) for installation from PyPI.
Building from source for older versions probably still works, though. See the [user guide](python_bindings.md) for details on how to build from source.
The minimum theoretically supported version is Python 3.8, since the used bindings generator (nanobind) only supports Python 3.8+.

12
thirdparty/benchmark/docs/index.md vendored
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# Benchmark
* [Assembly Tests](AssemblyTests.md)
* [Dependencies](dependencies.md)
* [Perf Counters](perf_counters.md)
* [Platform Specific Build Instructions](platform_specific_build_instructions.md)
* [Python Bindings](python_bindings.md)
* [Random Interleaving](random_interleaving.md)
* [Reducing Variance](reducing_variance.md)
* [Releasing](releasing.md)
* [Tools](tools.md)
* [User Guide](user_guide.md)

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<a name="perf-counters" />
# User-Requested Performance Counters
When running benchmarks, the user may choose to request collection of
performance counters. This may be useful in investigation scenarios - narrowing
down the cause of a regression; or verifying that the underlying cause of a
performance improvement matches expectations.
This feature is available if:
* The benchmark is run on an architecture featuring a Performance Monitoring
Unit (PMU),
* The benchmark is compiled with support for collecting counters. Currently,
this requires [libpfm](http://perfmon2.sourceforge.net/), which is built as a
dependency via Bazel.
The feature does not require modifying benchmark code. Counter collection is
handled at the boundaries where timer collection is also handled.
To opt-in:
* If using a Bazel build, add `--define pfm=1` to your build flags
* If using CMake:
* Install `libpfm4-dev`, e.g. `apt-get install libpfm4-dev`.
* Enable the CMake flag `BENCHMARK_ENABLE_LIBPFM` in `CMakeLists.txt`.
To use, pass a comma-separated list of counter names through the
`--benchmark_perf_counters` flag. The names are decoded through libpfm - meaning,
they are platform specific, but some (e.g. `CYCLES` or `INSTRUCTIONS`) are
mapped by libpfm to platform-specifics - see libpfm
[documentation](http://perfmon2.sourceforge.net/docs.html) for more details.
The counter values are reported back through the [User Counters](../README.md#custom-counters)
mechanism, meaning, they are available in all the formats (e.g. JSON) supported
by User Counters.

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# Platform Specific Build Instructions
## Building with GCC
When the library is built using GCC it is necessary to link with the pthread
library due to how GCC implements `std::thread`. Failing to link to pthread will
lead to runtime exceptions (unless you're using libc++), not linker errors. See
[issue #67](https://github.com/google/benchmark/issues/67) for more details. You
can link to pthread by adding `-pthread` to your linker command. Note, you can
also use `-lpthread`, but there are potential issues with ordering of command
line parameters if you use that.
On QNX, the pthread library is part of libc and usually included automatically
(see
[`pthread_create()`](https://www.qnx.com/developers/docs/7.1/index.html#com.qnx.doc.neutrino.lib_ref/topic/p/pthread_create.html)).
There's no separate pthread library to link.
## Building with Visual Studio 2015, 2017 or 2022
The `shlwapi` library (`-lshlwapi`) is required to support a call to `CPUInfo` which reads the registry. Either add `shlwapi.lib` under `[ Configuration Properties > Linker > Input ]`, or use the following:
```
// Alternatively, can add libraries using linker options.
// First, Add the path to the generated library files (directory containing the `benchmark.lib`) in `[Configuration Properties > Linker > General > Additional Library Directories]`. Then do the following:
#ifdef _WIN32
#pragma comment ( lib, "Shlwapi.lib" )
#ifdef _DEBUG
#pragma comment ( lib, "benchmark.lib" )
#else
#pragma comment ( lib, "benchmark.lib" )
#endif
#endif
```
When using the static library, make sure to add `BENCHMARK_STATIC_DEFINE` under `[Configuration Properties > C/C++ > Preprocessor > Preprocessor Definitions]`
Can also use the graphical version of CMake:
* Open `CMake GUI`.
* Under `Where to build the binaries`, same path as source plus `build`.
* Under `CMAKE_INSTALL_PREFIX`, same path as source plus `install`.
* Click `Configure`, `Generate`, `Open Project`.
* If build fails, try deleting entire directory and starting again, or unticking options to build less.
## Building with Intel 2015 Update 1 or Intel System Studio Update 4
See instructions for building with Visual Studio. Once built, right click on the solution and change the build to Intel.
## Building on Solaris
If you're running benchmarks on solaris, you'll want the kstat library linked in
too (`-lkstat`).

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# Building and installing Python bindings
Python bindings are available as wheels on [PyPI](https://pypi.org/project/google-benchmark/) for importing and
using Google Benchmark directly in Python.
Currently, pre-built wheels exist for macOS (both ARM64 and Intel x86), Linux x86-64 and 64-bit Windows.
Supported Python versions are Python 3.8 - 3.12.
To install Google Benchmark's Python bindings, run:
```bash
python -m pip install --upgrade pip # for manylinux2014 support
python -m pip install google-benchmark
```
In order to keep your system Python interpreter clean, it is advisable to run these commands in a virtual
environment. See the [official Python documentation](https://docs.python.org/3/library/venv.html)
on how to create virtual environments.
To build a wheel directly from source, you can follow these steps:
```bash
git clone https://github.com/google/benchmark.git
cd benchmark
# create a virtual environment and activate it
python3 -m venv venv --system-site-packages
source venv/bin/activate # .\venv\Scripts\Activate.ps1 on Windows
# upgrade Python's system-wide packages
python -m pip install --upgrade pip build
# builds the wheel and stores it in the directory "dist".
python -m build
```
NB: Building wheels from source requires Bazel. For platform-specific instructions on how to install Bazel,
refer to the [Bazel installation docs](https://bazel.build/install).

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<a name="interleaving" />
# Random Interleaving
[Random Interleaving](https://github.com/google/benchmark/issues/1051) is a
technique to lower run-to-run variance. It randomly interleaves repetitions of a
microbenchmark with repetitions from other microbenchmarks in the same benchmark
test. Data shows it is able to lower run-to-run variance by
[40%](https://github.com/google/benchmark/issues/1051) on average.
To use, you mainly need to set `--benchmark_enable_random_interleaving=true`,
and optionally specify non-zero repetition count `--benchmark_repetitions=9`
and optionally decrease the per-repetition time `--benchmark_min_time=0.1`.

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# Reducing Variance
<a name="disabling-cpu-frequency-scaling" />
## Disabling CPU Frequency Scaling
If you see this error:
```
***WARNING*** CPU scaling is enabled, the benchmark real time measurements may be noisy and will incur extra overhead.
```
you might want to disable the CPU frequency scaling while running the
benchmark, as well as consider other ways to stabilize the performance of
your system while benchmarking.
Exactly how to do this depends on the Linux distribution,
desktop environment, and installed programs. Specific details are a moving
target, so we will not attempt to exhaustively document them here.
One simple option is to use the `cpupower` program to change the
performance governor to "performance". This tool is maintained along with
the Linux kernel and provided by your distribution.
It must be run as root, like this:
```bash
sudo cpupower frequency-set --governor performance
```
After this you can verify that all CPUs are using the performance governor
by running this command:
```bash
cpupower frequency-info -o proc
```
The benchmarks you subsequently run will have less variance.
<a name="reducing-variance" />
## Disabling ASLR
If you see this error:
```
***WARNING*** ASLR is enabled, the results may have unreproducible noise in them.
```
you might want to disable the ASLR security hardening feature while running the
benchmark.
The simplest way is to add
```
benchmark::MaybeReenterWithoutASLR(argc, argv);
```
as the first line of your `main()` function. It will try to disable ASLR
for the current processor, and, if successful, re-execute the binary.
Note that `personality(2)` may be forbidden by e.g. seccomp (which happens
by default if you are running in a Docker container).
Note that if you link to `benchmark_main` already does that for you.
To globally disable ASLR on Linux, run
```
echo 0 > /proc/sys/kernel/randomize_va_space
```
To run a single benchmark with ASLR disabled on Linux, do:
```
setarch `uname -m` -R ./a_benchmark
```
Note that for the information on how to disable ASLR on other operating systems,
please refer to their documentation.
## Reducing Variance in Benchmarks
The Linux CPU frequency governor [discussed
above](user_guide#disabling-cpu-frequency-scaling) is not the only source
of noise in benchmarks. Some, but not all, of the sources of variance
include:
1. On multi-core machines not all CPUs/CPU cores/CPU threads run the same
speed, so running a benchmark one time and then again may give a
different result depending on which CPU it ran on.
2. CPU scaling features that run on the CPU, like Intel's Turbo Boost and
AMD Turbo Core and Precision Boost, can temporarily change the CPU
frequency even when the using the "performance" governor on Linux.
3. Context switching between CPUs, or scheduling competition on the CPU the
benchmark is running on.
4. Intel Hyperthreading or AMD SMT causing the same issue as above.
5. Cache effects caused by code running on other CPUs.
6. Non-uniform memory architectures (NUMA).
These can cause variance in benchmarks results within a single run
(`--benchmark_repetitions=N`) or across multiple runs of the benchmark
program.
Reducing sources of variance is OS and architecture dependent, which is one
reason some companies maintain machines dedicated to performance testing.
Some of the easier and effective ways of reducing variance on a typical
Linux workstation are:
1. Use the performance governor as [discussed
above](user_guide#disabling-cpu-frequency-scaling).
2. Disable processor boosting by:
```sh
echo 0 | sudo tee /sys/devices/system/cpu/cpufreq/boost
```
See the Linux kernel's
[boost.txt](https://www.kernel.org/doc/Documentation/cpu-freq/boost.txt)
for more information.
3. Set the benchmark program's task affinity to a fixed cpu. For example:
```sh
taskset -c 0 ./mybenchmark
```
4. Increase the program's scheduling priority to minimize context switches using `nice` or `chrt`:
```sh
sudo nice -n -20 ./mybenchmark
sudo chrt -f 80 ./mybenchmark
```
5. Disabling Hyperthreading/SMT. This can be done in the Bios or using the
`/sys` file system (see the LLVM project's [Benchmarking
tips](https://llvm.org/docs/Benchmarking.html)).
6. Close other programs that do non-trivial things based on timers, such as
your web browser, desktop environment, etc.
7. Reduce the working set of your benchmark to fit within the L1 cache, but
do be aware that this may lead you to optimize for an unrealistic
situation.
Further resources on this topic:
1. The LLVM project's [Benchmarking
tips](https://llvm.org/docs/Benchmarking.html).
1. The Arch Wiki [Cpu frequency
scaling](https://wiki.archlinux.org/title/CPU_frequency_scaling) page.

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# How to release
* Make sure you're on main and synced to HEAD
* Ensure the project builds and tests run
* `parallel -j0 exec ::: test/*_test` can help ensure everything at least
passes
* Prepare release notes
* `git log $(git describe --abbrev=0 --tags)..HEAD` gives you the list of
commits between the last annotated tag and HEAD
* Pick the most interesting.
* Create one last commit that updates the version saved in `CMakeLists.txt`, `MODULE.bazel`,
and `bindings/python/google_benchmark/__init__.py` to the release version you're creating.
(This version will be used if benchmark is installed from the archive you'll be creating
in the next step.)
```
# CMakeLists.txt
project (benchmark VERSION 1.9.0 LANGUAGES CXX)
```
```
# MODULE.bazel
module(name = "com_github_google_benchmark", version="1.9.0")
```
```
# google_benchmark/__init__.py
__version__ = "1.9.0"
```
* Create a release through github's interface
* Note this will create a lightweight tag.
* Update this to an annotated tag:
* `git pull --tags`
* `git tag -a -f <tag> <tag>`
* `git push --force --tags origin`
* Confirm that the "Build and upload Python wheels" action runs to completion
* Run it manually if it hasn't run.

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# Benchmark Tools
## compare.py
The `compare.py` can be used to compare the result of benchmarks.
### Dependencies
The utility relies on the [scipy](https://www.scipy.org) package which can be installed using pip:
```bash
pip3 install -r requirements.txt
```
### Displaying aggregates only
The switch `-a` / `--display_aggregates_only` can be used to control the
displayment of the normal iterations vs the aggregates. When passed, it will
be passthrough to the benchmark binaries to be run, and will be accounted for
in the tool itself; only the aggregates will be displayed, but not normal runs.
It only affects the display, the separate runs will still be used to calculate
the U test.
### Modes of operation
There are three modes of operation:
1. Just compare two benchmarks
The program is invoked like:
``` bash
$ compare.py benchmarks <benchmark_baseline> <benchmark_contender> [benchmark options]...
```
Where `<benchmark_baseline>` and `<benchmark_contender>` either specify a benchmark executable file, or a JSON output file. The type of the input file is automatically detected. If a benchmark executable is specified then the benchmark is run to obtain the results. Otherwise the results are simply loaded from the output file.
`[benchmark options]` will be passed to the benchmarks invocations. They can be anything that binary accepts, be it either normal `--benchmark_*` parameters, or some custom parameters your binary takes.
Example output:
```
$ ./compare.py benchmarks ./a.out ./a.out
RUNNING: ./a.out --benchmark_out=/tmp/tmprBT5nW
Run on (8 X 4000 MHz CPU s)
2017-11-07 21:16:44
------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------
BM_memcpy/8 36 ns 36 ns 19101577 211.669MB/s
BM_memcpy/64 76 ns 76 ns 9412571 800.199MB/s
BM_memcpy/512 84 ns 84 ns 8249070 5.64771GB/s
BM_memcpy/1024 116 ns 116 ns 6181763 8.19505GB/s
BM_memcpy/8192 643 ns 643 ns 1062855 11.8636GB/s
BM_copy/8 222 ns 222 ns 3137987 34.3772MB/s
BM_copy/64 1608 ns 1608 ns 432758 37.9501MB/s
BM_copy/512 12589 ns 12589 ns 54806 38.7867MB/s
BM_copy/1024 25169 ns 25169 ns 27713 38.8003MB/s
BM_copy/8192 201165 ns 201112 ns 3486 38.8466MB/s
RUNNING: ./a.out --benchmark_out=/tmp/tmpt1wwG_
Run on (8 X 4000 MHz CPU s)
2017-11-07 21:16:53
------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------
BM_memcpy/8 36 ns 36 ns 19397903 211.255MB/s
BM_memcpy/64 73 ns 73 ns 9691174 839.635MB/s
BM_memcpy/512 85 ns 85 ns 8312329 5.60101GB/s
BM_memcpy/1024 118 ns 118 ns 6438774 8.11608GB/s
BM_memcpy/8192 656 ns 656 ns 1068644 11.6277GB/s
BM_copy/8 223 ns 223 ns 3146977 34.2338MB/s
BM_copy/64 1611 ns 1611 ns 435340 37.8751MB/s
BM_copy/512 12622 ns 12622 ns 54818 38.6844MB/s
BM_copy/1024 25257 ns 25239 ns 27779 38.6927MB/s
BM_copy/8192 205013 ns 205010 ns 3479 38.108MB/s
Comparing ./a.out to ./a.out
Benchmark Time CPU Time Old Time New CPU Old CPU New
------------------------------------------------------------------------------------------------------
BM_memcpy/8 +0.0020 +0.0020 36 36 36 36
BM_memcpy/64 -0.0468 -0.0470 76 73 76 73
BM_memcpy/512 +0.0081 +0.0083 84 85 84 85
BM_memcpy/1024 +0.0098 +0.0097 116 118 116 118
BM_memcpy/8192 +0.0200 +0.0203 643 656 643 656
BM_copy/8 +0.0046 +0.0042 222 223 222 223
BM_copy/64 +0.0020 +0.0020 1608 1611 1608 1611
BM_copy/512 +0.0027 +0.0026 12589 12622 12589 12622
BM_copy/1024 +0.0035 +0.0028 25169 25257 25169 25239
BM_copy/8192 +0.0191 +0.0194 201165 205013 201112 205010
```
What it does is for the every benchmark from the first run it looks for the benchmark with exactly the same name in the second run, and then compares the results. If the names differ, the benchmark is omitted from the diff.
As you can note, the values in `Time` and `CPU` columns are calculated as `(new - old) / |old|`.
2. Compare two different filters of one benchmark
The program is invoked like:
``` bash
$ compare.py filters <benchmark> <filter_baseline> <filter_contender> [benchmark options]...
```
Where `<benchmark>` either specify a benchmark executable file, or a JSON output file. The type of the input file is automatically detected. If a benchmark executable is specified then the benchmark is run to obtain the results. Otherwise the results are simply loaded from the output file.
Where `<filter_baseline>` and `<filter_contender>` are the same regex filters that you would pass to the `[--benchmark_filter=<regex>]` parameter of the benchmark binary.
`[benchmark options]` will be passed to the benchmarks invocations. They can be anything that binary accepts, be it either normal `--benchmark_*` parameters, or some custom parameters your binary takes.
Example output:
```
$ ./compare.py filters ./a.out BM_memcpy BM_copy
RUNNING: ./a.out --benchmark_filter=BM_memcpy --benchmark_out=/tmp/tmpBWKk0k
Run on (8 X 4000 MHz CPU s)
2017-11-07 21:37:28
------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------
BM_memcpy/8 36 ns 36 ns 17891491 211.215MB/s
BM_memcpy/64 74 ns 74 ns 9400999 825.646MB/s
BM_memcpy/512 87 ns 87 ns 8027453 5.46126GB/s
BM_memcpy/1024 111 ns 111 ns 6116853 8.5648GB/s
BM_memcpy/8192 657 ns 656 ns 1064679 11.6247GB/s
RUNNING: ./a.out --benchmark_filter=BM_copy --benchmark_out=/tmp/tmpAvWcOM
Run on (8 X 4000 MHz CPU s)
2017-11-07 21:37:33
----------------------------------------------------
Benchmark Time CPU Iterations
----------------------------------------------------
BM_copy/8 227 ns 227 ns 3038700 33.6264MB/s
BM_copy/64 1640 ns 1640 ns 426893 37.2154MB/s
BM_copy/512 12804 ns 12801 ns 55417 38.1444MB/s
BM_copy/1024 25409 ns 25407 ns 27516 38.4365MB/s
BM_copy/8192 202986 ns 202990 ns 3454 38.4871MB/s
Comparing BM_memcpy to BM_copy (from ./a.out)
Benchmark Time CPU Time Old Time New CPU Old CPU New
--------------------------------------------------------------------------------------------------------------------
[BM_memcpy vs. BM_copy]/8 +5.2829 +5.2812 36 227 36 227
[BM_memcpy vs. BM_copy]/64 +21.1719 +21.1856 74 1640 74 1640
[BM_memcpy vs. BM_copy]/512 +145.6487 +145.6097 87 12804 87 12801
[BM_memcpy vs. BM_copy]/1024 +227.1860 +227.1776 111 25409 111 25407
[BM_memcpy vs. BM_copy]/8192 +308.1664 +308.2898 657 202986 656 202990
```
As you can see, it applies filter to the benchmarks, both when running the benchmark, and before doing the diff. And to make the diff work, the matches are replaced with some common string. Thus, you can compare two different benchmark families within one benchmark binary.
As you can note, the values in `Time` and `CPU` columns are calculated as `(new - old) / |old|`.
3. Compare filter one from benchmark one to filter two from benchmark two:
The program is invoked like:
``` bash
$ compare.py filters <benchmark_baseline> <filter_baseline> <benchmark_contender> <filter_contender> [benchmark options]...
```
Where `<benchmark_baseline>` and `<benchmark_contender>` either specify a benchmark executable file, or a JSON output file. The type of the input file is automatically detected. If a benchmark executable is specified then the benchmark is run to obtain the results. Otherwise the results are simply loaded from the output file.
Where `<filter_baseline>` and `<filter_contender>` are the same regex filters that you would pass to the `[--benchmark_filter=<regex>]` parameter of the benchmark binary.
`[benchmark options]` will be passed to the benchmarks invocations. They can be anything that binary accepts, be it either normal `--benchmark_*` parameters, or some custom parameters your binary takes.
Example output:
```
$ ./compare.py benchmarksfiltered ./a.out BM_memcpy ./a.out BM_copy
RUNNING: ./a.out --benchmark_filter=BM_memcpy --benchmark_out=/tmp/tmp_FvbYg
Run on (8 X 4000 MHz CPU s)
2017-11-07 21:38:27
------------------------------------------------------
Benchmark Time CPU Iterations
------------------------------------------------------
BM_memcpy/8 37 ns 37 ns 18953482 204.118MB/s
BM_memcpy/64 74 ns 74 ns 9206578 828.245MB/s
BM_memcpy/512 91 ns 91 ns 8086195 5.25476GB/s
BM_memcpy/1024 120 ns 120 ns 5804513 7.95662GB/s
BM_memcpy/8192 664 ns 664 ns 1028363 11.4948GB/s
RUNNING: ./a.out --benchmark_filter=BM_copy --benchmark_out=/tmp/tmpDfL5iE
Run on (8 X 4000 MHz CPU s)
2017-11-07 21:38:32
----------------------------------------------------
Benchmark Time CPU Iterations
----------------------------------------------------
BM_copy/8 230 ns 230 ns 2985909 33.1161MB/s
BM_copy/64 1654 ns 1653 ns 419408 36.9137MB/s
BM_copy/512 13122 ns 13120 ns 53403 37.2156MB/s
BM_copy/1024 26679 ns 26666 ns 26575 36.6218MB/s
BM_copy/8192 215068 ns 215053 ns 3221 36.3283MB/s
Comparing BM_memcpy (from ./a.out) to BM_copy (from ./a.out)
Benchmark Time CPU Time Old Time New CPU Old CPU New
--------------------------------------------------------------------------------------------------------------------
[BM_memcpy vs. BM_copy]/8 +5.1649 +5.1637 37 230 37 230
[BM_memcpy vs. BM_copy]/64 +21.4352 +21.4374 74 1654 74 1653
[BM_memcpy vs. BM_copy]/512 +143.6022 +143.5865 91 13122 91 13120
[BM_memcpy vs. BM_copy]/1024 +221.5903 +221.4790 120 26679 120 26666
[BM_memcpy vs. BM_copy]/8192 +322.9059 +323.0096 664 215068 664 215053
```
This is a mix of the previous two modes, two (potentially different) benchmark binaries are run, and a different filter is applied to each one.
As you can note, the values in `Time` and `CPU` columns are calculated as `(new - old) / |old|`.
### Note: Interpreting the output
Performance measurements are an art, and performance comparisons are doubly so.
Results are often noisy and don't necessarily have large absolute differences to
them, so just by visual inspection, it is not at all apparent if two
measurements are actually showing a performance change or not. It is even more
confusing with multiple benchmark repetitions.
Thankfully, what we can do, is use statistical tests on the results to determine
whether the performance has statistically-significantly changed. `compare.py`
uses [Mann–Whitney U
test](https://en.wikipedia.org/wiki/Mann%E2%80%93Whitney_U_test), with a null
hypothesis being that there's no difference in performance.
**The below output is a summary of a benchmark comparison with statistics
provided for a multi-threaded process.**
```
Benchmark Time CPU Time Old Time New CPU Old CPU New
-----------------------------------------------------------------------------------------------------------------------------
benchmark/threads:1/process_time/real_time_pvalue 0.0000 0.0000 U Test, Repetitions: 27 vs 27
benchmark/threads:1/process_time/real_time_mean -0.1442 -0.1442 90 77 90 77
benchmark/threads:1/process_time/real_time_median -0.1444 -0.1444 90 77 90 77
benchmark/threads:1/process_time/real_time_stddev +0.3974 +0.3933 0 0 0 0
benchmark/threads:1/process_time/real_time_cv +0.6329 +0.6280 0 0 0 0
OVERALL_GEOMEAN -0.1442 -0.1442 0 0 0 0
```
--------------------------------------------
Here's a breakdown of each row:
**benchmark/threads:1/process_time/real_time_pvalue**: This shows the _p-value_ for
the statistical test comparing the performance of the process running with one
thread. A value of 0.0000 suggests a statistically significant difference in
performance. The comparison was conducted using the U Test (Mann-Whitney
U Test) with 27 repetitions for each case.
**benchmark/threads:1/process_time/real_time_mean**: This shows the relative
difference in mean execution time between two different cases. The negative
value (-0.1442) implies that the new process is faster by about 14.42%. The old
time was 90 units, while the new time is 77 units.
**benchmark/threads:1/process_time/real_time_median**: Similarly, this shows the
relative difference in the median execution time. Again, the new process is
faster by 14.44%.
**benchmark/threads:1/process_time/real_time_stddev**: This is the relative
difference in the standard deviation of the execution time, which is a measure
of how much variation or dispersion there is from the mean. A positive value
(+0.3974) implies there is more variance in the execution time in the new
process.
**benchmark/threads:1/process_time/real_time_cv**: CV stands for Coefficient of
Variation. It is the ratio of the standard deviation to the mean. It provides a
standardized measure of dispersion. An increase (+0.6329) indicates more
relative variability in the new process.
**OVERALL_GEOMEAN**: Geomean stands for geometric mean, a type of average that is
less influenced by outliers. The negative value indicates a general improvement
in the new process. However, given the values are all zero for the old and new
times, this seems to be a mistake or placeholder in the output.
-----------------------------------------
Let's first try to see what the different columns represent in the above
`compare.py` benchmarking output:
1. **Benchmark:** The name of the function being benchmarked, along with the
size of the input (after the slash).
2. **Time:** The average time per operation, across all iterations.
3. **CPU:** The average CPU time per operation, across all iterations.
4. **Iterations:** The number of iterations the benchmark was run to get a
stable estimate.
5. **Time Old and Time New:** These represent the average time it takes for a
function to run in two different scenarios or versions. For example, you
might be comparing how fast a function runs before and after you make some
changes to it.
6. **CPU Old and CPU New:** These show the average amount of CPU time that the
function uses in two different scenarios or versions. This is similar to
Time Old and Time New, but focuses on CPU usage instead of overall time.
In the comparison section, the relative differences in both time and CPU time
are displayed for each input size.
A statistically-significant difference is determined by a **p-value**, which is
a measure of the probability that the observed difference could have occurred
just by random chance. A smaller p-value indicates stronger evidence against the
null hypothesis.
**Therefore:**
1. If the p-value is less than the chosen significance level (alpha), we
reject the null hypothesis and conclude the benchmarks are significantly
different.
2. If the p-value is greater than or equal to alpha, we fail to reject the
null hypothesis and treat the two benchmarks as similar.
The result of said the statistical test is additionally communicated through color coding:
```diff
+ Green:
```
The benchmarks are _**statistically different**_. This could mean the
performance has either **significantly improved** or **significantly
deteriorated**. You should look at the actual performance numbers to see which
is the case.
```diff
- Red:
```
The benchmarks are _**statistically similar**_. This means the performance
**hasn't significantly changed**.
In statistical terms, **'green'** means we reject the null hypothesis that
there's no difference in performance, and **'red'** means we fail to reject the
null hypothesis. This might seem counter-intuitive if you're expecting 'green'
to mean 'improved performance' and 'red' to mean 'worsened performance'.
```bash
But remember, in this context:
'Success' means 'successfully finding a difference'.
'Failure' means 'failing to find a difference'.
```
Also, please note that **even if** we determine that there **is** a
statistically-significant difference between the two measurements, it does not
_necessarily_ mean that the actual benchmarks that were measured **are**
different, or vice versa, even if we determine that there is **no**
statistically-significant difference between the two measurements, it does not
necessarily mean that the actual benchmarks that were measured **are not**
different.
### U test
If there is a sufficient repetition count of the benchmarks, the tool can do
a [U Test](https://en.wikipedia.org/wiki/Mann%E2%80%93Whitney_U_test), of the
null hypothesis that it is equally likely that a randomly selected value from
one sample will be less than or greater than a randomly selected value from a
second sample.
If the calculated p-value is below this value is lower than the significance
level alpha, then the result is said to be statistically significant and the
null hypothesis is rejected. Which in other words means that the two benchmarks
aren't identical.
**WARNING**: requires **LARGE** (no less than 9) number of repetitions to be
meaningful!

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_BENCHMARK_H_
#define BENCHMARK_BENCHMARK_H_
#include "benchmark/benchmark_api.h"
#include "benchmark/counter.h"
#include "benchmark/macros.h"
#include "benchmark/managers.h"
#include "benchmark/registration.h"
#include "benchmark/reporter.h"
#include "benchmark/state.h"
#include "benchmark/statistics.h"
#include "benchmark/sysinfo.h"
#include "benchmark/types.h"
#include "benchmark/utils.h"
#endif // BENCHMARK_BENCHMARK_H_

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_BENCHMARK_API_H_
#define BENCHMARK_BENCHMARK_API_H_
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4251)
#endif
#include <functional>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "benchmark/counter.h"
#include "benchmark/macros.h"
#include "benchmark/state.h"
#include "benchmark/statistics.h"
#include "benchmark/types.h"
namespace benchmark {
const char kDefaultMinTimeStr[] = "0.5s";
BENCHMARK_EXPORT void MaybeReenterWithoutASLR(int, char**);
BENCHMARK_EXPORT std::string GetBenchmarkVersion();
BENCHMARK_EXPORT void PrintDefaultHelp();
BENCHMARK_EXPORT void Initialize(int* argc, char** argv,
void (*HelperPrintf)() = PrintDefaultHelp);
BENCHMARK_EXPORT void Shutdown();
BENCHMARK_EXPORT bool ReportUnrecognizedArguments(int argc, char** argv);
BENCHMARK_EXPORT std::string GetBenchmarkFilter();
BENCHMARK_EXPORT void SetBenchmarkFilter(std::string value);
BENCHMARK_EXPORT int32_t GetBenchmarkVerbosity();
BENCHMARK_EXPORT BenchmarkReporter* CreateDefaultDisplayReporter();
BENCHMARK_EXPORT size_t RunSpecifiedBenchmarks();
BENCHMARK_EXPORT size_t RunSpecifiedBenchmarks(std::string spec);
BENCHMARK_EXPORT size_t
RunSpecifiedBenchmarks(BenchmarkReporter* display_reporter);
BENCHMARK_EXPORT size_t
RunSpecifiedBenchmarks(BenchmarkReporter* display_reporter, std::string spec);
BENCHMARK_EXPORT size_t RunSpecifiedBenchmarks(
BenchmarkReporter* display_reporter, BenchmarkReporter* file_reporter);
BENCHMARK_EXPORT size_t
RunSpecifiedBenchmarks(BenchmarkReporter* display_reporter,
BenchmarkReporter* file_reporter, std::string spec);
BENCHMARK_EXPORT TimeUnit GetDefaultTimeUnit();
BENCHMARK_EXPORT void SetDefaultTimeUnit(TimeUnit unit);
BENCHMARK_EXPORT
void AddCustomContext(std::string key, std::string value);
struct ThreadRunnerBase {
virtual ~ThreadRunnerBase() {}
virtual void RunThreads(const std::function<void(int)>& fn) = 0;
};
using threadrunner_factory =
std::function<std::unique_ptr<ThreadRunnerBase>(int)>;
namespace internal {
class BenchmarkFamilies;
class BenchmarkInstance;
} // namespace internal
class BENCHMARK_EXPORT Benchmark {
public:
virtual ~Benchmark();
Benchmark* Name(const std::string& name);
Benchmark* Arg(int64_t x);
Benchmark* Unit(TimeUnit unit);
Benchmark* Range(int64_t start, int64_t limit);
Benchmark* DenseRange(int64_t start, int64_t limit, int step = 1);
Benchmark* Args(const std::vector<int64_t>& args);
Benchmark* ArgPair(int64_t x, int64_t y) {
std::vector<int64_t> args;
args.push_back(x);
args.push_back(y);
return Args(args);
}
Benchmark* Ranges(const std::vector<std::pair<int64_t, int64_t>>& ranges);
Benchmark* ArgsProduct(const std::vector<std::vector<int64_t>>& arglists);
Benchmark* ArgName(const std::string& name);
Benchmark* ArgNames(const std::vector<std::string>& names);
Benchmark* RangePair(int64_t lo1, int64_t hi1, int64_t lo2, int64_t hi2) {
std::vector<std::pair<int64_t, int64_t>> ranges;
ranges.push_back(std::make_pair(lo1, hi1));
ranges.push_back(std::make_pair(lo2, hi2));
return Ranges(ranges);
}
Benchmark* Setup(callback_function&&);
Benchmark* Setup(const callback_function&);
Benchmark* Teardown(callback_function&&);
Benchmark* Teardown(const callback_function&);
Benchmark* Apply(const std::function<void(Benchmark* benchmark)>&);
Benchmark* RangeMultiplier(int multiplier);
Benchmark* MinTime(double t);
Benchmark* MinWarmUpTime(double t);
Benchmark* Iterations(IterationCount n);
Benchmark* Repetitions(int n);
Benchmark* ReportAggregatesOnly(bool value = true);
Benchmark* DisplayAggregatesOnly(bool value = true);
Benchmark* MeasureProcessCPUTime();
Benchmark* UseRealTime();
Benchmark* UseManualTime();
Benchmark* Complexity(BigO complexity = benchmark::oAuto);
Benchmark* Complexity(BigOFunc* complexity);
Benchmark* ComputeStatistics(const std::string& name,
StatisticsFunc* statistics,
StatisticUnit unit = kTime);
Benchmark* Threads(int t);
Benchmark* ThreadRange(int min_threads, int max_threads);
Benchmark* DenseThreadRange(int min_threads, int max_threads, int stride = 1);
Benchmark* ThreadPerCpu();
Benchmark* ThreadRunner(threadrunner_factory&& factory);
virtual void Run(State& state) = 0;
TimeUnit GetTimeUnit() const;
protected:
explicit Benchmark(const std::string& name);
void SetName(const std::string& name);
public:
const char* GetName() const;
int ArgsCnt() const;
const char* GetArgName(int arg) const;
private:
friend class internal::BenchmarkFamilies;
friend class internal::BenchmarkInstance;
std::string name_;
internal::AggregationReportMode aggregation_report_mode_;
std::vector<std::string> arg_names_;
std::vector<std::vector<int64_t>> args_;
TimeUnit time_unit_;
bool use_default_time_unit_;
int range_multiplier_;
double min_time_;
double min_warmup_time_;
IterationCount iterations_;
int repetitions_;
bool measure_process_cpu_time_;
bool use_real_time_;
bool use_manual_time_;
BigO complexity_;
BigOFunc* complexity_lambda_;
std::vector<internal::Statistics> statistics_;
std::vector<int> thread_counts_;
callback_function setup_;
callback_function teardown_;
threadrunner_factory threadrunner_;
BENCHMARK_DISALLOW_COPY_AND_ASSIGN(Benchmark);
};
namespace internal {
typedef BENCHMARK_DEPRECATED_MSG(
"Use ::benchmark::Benchmark instead")::benchmark::Benchmark Benchmark;
typedef BENCHMARK_DEPRECATED_MSG(
"Use ::benchmark::threadrunner_factory instead")::benchmark::
threadrunner_factory threadrunner_factory;
typedef void(Function)(State&);
BENCHMARK_EXPORT ::benchmark::Benchmark* RegisterBenchmarkInternal(
std::unique_ptr<::benchmark::Benchmark>);
BENCHMARK_EXPORT std::map<std::string, std::string>*& GetGlobalContext();
BENCHMARK_EXPORT void UseCharPointer(char const volatile*);
BENCHMARK_EXPORT int InitializeStreams();
BENCHMARK_UNUSED static int stream_init_anchor = InitializeStreams();
} // namespace internal
Benchmark* RegisterBenchmark(const std::string& name, internal::Function* fn);
template <class Lambda>
Benchmark* RegisterBenchmark(const std::string& name, Lambda&& fn);
BENCHMARK_EXPORT void ClearRegisteredBenchmarks();
namespace internal {
class BENCHMARK_EXPORT FunctionBenchmark : public benchmark::Benchmark {
public:
FunctionBenchmark(const std::string& name, Function* func)
: Benchmark(name), func_(func) {}
void Run(State& st) override;
private:
Function* func_;
};
template <class Lambda>
class LambdaBenchmark : public benchmark::Benchmark {
public:
void Run(State& st) override { lambda_(st); }
template <class OLambda>
LambdaBenchmark(const std::string& name, OLambda&& lam)
: Benchmark(name), lambda_(std::forward<OLambda>(lam)) {}
private:
LambdaBenchmark(LambdaBenchmark const&) = delete;
Lambda lambda_;
};
} // namespace internal
inline Benchmark* RegisterBenchmark(const std::string& name,
internal::Function* fn) {
return internal::RegisterBenchmarkInternal(
::benchmark::internal::make_unique<internal::FunctionBenchmark>(name,
fn));
}
template <class Lambda>
Benchmark* RegisterBenchmark(const std::string& name, Lambda&& fn) {
using BenchType =
internal::LambdaBenchmark<typename std::decay<Lambda>::type>;
return internal::RegisterBenchmarkInternal(
::benchmark::internal::make_unique<BenchType>(name,
std::forward<Lambda>(fn)));
}
template <class Lambda, class... Args>
Benchmark* RegisterBenchmark(const std::string& name, Lambda&& fn,
Args&&... args) {
return benchmark::RegisterBenchmark(
name, [=](benchmark::State& st) { fn(st, args...); });
}
class Fixture : public Benchmark {
public:
Fixture() : Benchmark("") {}
void Run(State& st) override {
this->SetUp(st);
this->BenchmarkCase(st);
this->TearDown(st);
}
virtual void SetUp(const State&) {}
virtual void TearDown(const State&) {}
virtual void SetUp(State& st) { SetUp(const_cast<const State&>(st)); }
virtual void TearDown(State& st) { TearDown(const_cast<const State&>(st)); }
protected:
virtual void BenchmarkCase(State&) = 0;
};
BENCHMARK_EXPORT
std::vector<int64_t> CreateRange(int64_t lo, int64_t hi, int multi);
BENCHMARK_EXPORT
std::vector<int64_t> CreateDenseRange(int64_t start, int64_t limit, int step);
} // namespace benchmark
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif // BENCHMARK_BENCHMARK_API_H_

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_COUNTER_H_
#define BENCHMARK_COUNTER_H_
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4251)
#endif
#include <map>
#include <string>
#include "benchmark/macros.h"
#include "benchmark/types.h"
namespace benchmark {
class BENCHMARK_EXPORT Counter {
public:
enum Flags {
kDefaults = 0,
kIsRate = 1 << 0,
kAvgThreads = 1 << 1,
kAvgThreadsRate = kIsRate | kAvgThreads,
kIsIterationInvariant = 1 << 2,
kIsIterationInvariantRate = kIsRate | kIsIterationInvariant,
kAvgIterations = 1 << 3,
kAvgIterationsRate = kIsRate | kAvgIterations,
kInvert = 1 << 31
};
enum OneK { kIs1000 = 1000, kIs1024 = 1024 };
double value;
Flags flags;
OneK oneK;
BENCHMARK_ALWAYS_INLINE
Counter(double v = 0., Flags f = kDefaults, OneK k = kIs1000)
: value(v), flags(f), oneK(k) {}
BENCHMARK_ALWAYS_INLINE operator double const&() const { return value; }
BENCHMARK_ALWAYS_INLINE operator double&() { return value; }
};
Counter::Flags inline operator|(const Counter::Flags& LHS,
const Counter::Flags& RHS) {
return static_cast<Counter::Flags>(static_cast<int>(LHS) |
static_cast<int>(RHS));
}
using UserCounters = std::map<std::string, Counter>;
namespace internal {
void Finish(UserCounters* l, IterationCount iterations, double cpu_time,
double num_threads);
void Increment(UserCounters* l, UserCounters const& r);
bool SameNames(UserCounters const& l, UserCounters const& r);
} // namespace internal
} // namespace benchmark
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif // BENCHMARK_COUNTER_H_

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#ifndef BENCHMARK_EXPORT_H
#define BENCHMARK_EXPORT_H
#if defined(_WIN32)
#define EXPORT_ATTR __declspec(dllexport)
#define IMPORT_ATTR __declspec(dllimport)
#define NO_EXPORT_ATTR
#define DEPRECATED_ATTR __declspec(deprecated)
#else // _WIN32
#define EXPORT_ATTR __attribute__((visibility("default")))
#define IMPORT_ATTR __attribute__((visibility("default")))
#define NO_EXPORT_ATTR __attribute__((visibility("hidden")))
#define DEPRECATE_ATTR __attribute__((__deprecated__))
#endif // _WIN32
#ifdef BENCHMARK_STATIC_DEFINE
#define BENCHMARK_EXPORT
#define BENCHMARK_NO_EXPORT
#else // BENCHMARK_STATIC_DEFINE
#ifndef BENCHMARK_EXPORT
#ifdef benchmark_EXPORTS
/* We are building this library */
#define BENCHMARK_EXPORT EXPORT_ATTR
#else // benchmark_EXPORTS
/* We are using this library */
#define BENCHMARK_EXPORT IMPORT_ATTR
#endif // benchmark_EXPORTS
#endif // !BENCHMARK_EXPORT
#ifndef BENCHMARK_NO_EXPORT
#define BENCHMARK_NO_EXPORT NO_EXPORT_ATTR
#endif // !BENCHMARK_NO_EXPORT
#endif // BENCHMARK_STATIC_DEFINE
#ifndef BENCHMARK_DEPRECATED
#define BENCHMARK_DEPRECATED DEPRECATE_ATTR
#endif // BENCHMARK_DEPRECATED
#ifndef BENCHMARK_DEPRECATED_EXPORT
#define BENCHMARK_DEPRECATED_EXPORT BENCHMARK_EXPORT BENCHMARK_DEPRECATED
#endif // BENCHMARK_DEPRECATED_EXPORT
#ifndef BENCHMARK_DEPRECATED_NO_EXPORT
#define BENCHMARK_DEPRECATED_NO_EXPORT BENCHMARK_NO_EXPORT BENCHMARK_DEPRECATED
#endif // BENCHMARK_DEPRECATED_EXPORT
#endif /* BENCHMARK_EXPORT_H */

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_MACROS_H_
#define BENCHMARK_MACROS_H_
#if defined(_MSC_VER)
#include <intrin.h>
#endif
#include <stdint.h>
#define BENCHMARK_DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&) = delete; \
TypeName& operator=(const TypeName&) = delete
#ifdef BENCHMARK_HAS_CXX17
#define BENCHMARK_UNUSED [[maybe_unused]]
#elif defined(__GNUC__) || defined(__clang__)
#define BENCHMARK_UNUSED __attribute__((unused))
#else
#define BENCHMARK_UNUSED
#endif
#if defined(__clang__)
#define BENCHMARK_DONT_OPTIMIZE __attribute__((optnone))
#elif defined(__GNUC__) || defined(__GNUG__)
#define BENCHMARK_DONT_OPTIMIZE __attribute__((optimize(0)))
#else
#define BENCHMARK_DONT_OPTIMIZE
#endif
#if defined(__GNUC__) || defined(__clang__)
#define BENCHMARK_ALWAYS_INLINE __attribute__((always_inline))
#elif defined(_MSC_VER) && !defined(__clang__)
#define BENCHMARK_ALWAYS_INLINE __forceinline
#define __func__ __FUNCTION__
#else
#define BENCHMARK_ALWAYS_INLINE
#endif
#define BENCHMARK_INTERNAL_TOSTRING2(x) #x
#define BENCHMARK_INTERNAL_TOSTRING(x) BENCHMARK_INTERNAL_TOSTRING2(x)
#if (defined(__GNUC__) && !defined(__NVCC__) && !defined(__NVCOMPILER)) || \
defined(__clang__)
#define BENCHMARK_BUILTIN_EXPECT(x, y) __builtin_expect(x, y)
#define BENCHMARK_DEPRECATED_MSG(msg) __attribute__((deprecated(msg)))
#define BENCHMARK_DISABLE_DEPRECATED_WARNING \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
#define BENCHMARK_RESTORE_DEPRECATED_WARNING _Pragma("GCC diagnostic pop")
#elif defined(__NVCOMPILER)
#define BENCHMARK_BUILTIN_EXPECT(x, y) __builtin_expect(x, y)
#define BENCHMARK_DEPRECATED_MSG(msg) __attribute__((deprecated(msg)))
#define BENCHMARK_DISABLE_DEPRECATED_WARNING \
_Pragma("diagnostic push") \
_Pragma("diag_suppress deprecated_entity_with_custom_message")
#define BENCHMARK_RESTORE_DEPRECATED_WARNING _Pragma("diagnostic pop")
#elif defined(_MSC_VER)
#define BENCHMARK_BUILTIN_EXPECT(x, y) x
#define BENCHMARK_DEPRECATED_MSG(msg) __declspec(deprecated(msg))
#define BENCHMARK_WARNING_MSG(msg) \
__pragma(message(__FILE__ "(" BENCHMARK_INTERNAL_TOSTRING( \
__LINE__) ") : warning note: " msg))
#define BENCHMARK_DISABLE_DEPRECATED_WARNING \
__pragma(warning(push)) __pragma(warning(disable : 4996))
#define BENCHMARK_RESTORE_DEPRECATED_WARNING __pragma(warning(pop))
#else
#define BENCHMARK_BUILTIN_EXPECT(x, y) x
#define BENCHMARK_DEPRECATED_MSG(msg)
#define BENCHMARK_WARNING_MSG(msg) \
__pragma(message(__FILE__ "(" BENCHMARK_INTERNAL_TOSTRING( \
__LINE__) ") : warning note: " msg))
#define BENCHMARK_DISABLE_DEPRECATED_WARNING
#define BENCHMARK_RESTORE_DEPRECATED_WARNING
#endif
#if defined(__GNUC__) && !defined(__clang__)
#define BENCHMARK_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
#endif
#ifndef __has_builtin
#define __has_builtin(x) 0
#endif
#if defined(__GNUC__) || __has_builtin(__builtin_unreachable)
#define BENCHMARK_UNREACHABLE() __builtin_unreachable()
#elif defined(_MSC_VER)
#define BENCHMARK_UNREACHABLE() __assume(false)
#else
#define BENCHMARK_UNREACHABLE() ((void)0)
#endif
#if defined(__GNUC__)
#if defined(__i386__) || defined(__x86_64__)
#define BENCHMARK_INTERNAL_CACHELINE_SIZE 64
#elif defined(__powerpc64__)
#define BENCHMARK_INTERNAL_CACHELINE_SIZE 128
#elif defined(__aarch64__)
#define BENCHMARK_INTERNAL_CACHELINE_SIZE 64
#elif defined(__arm__)
#if defined(__ARM_ARCH_5T__)
#define BENCHMARK_INTERNAL_CACHELINE_SIZE 32
#elif defined(__ARM_ARCH_7A__)
#define BENCHMARK_INTERNAL_CACHELINE_SIZE 64
#endif
#endif
#endif
#ifndef BENCHMARK_INTERNAL_CACHELINE_SIZE
#define BENCHMARK_INTERNAL_CACHELINE_SIZE 64
#endif
#if defined(__GNUC__)
#define BENCHMARK_INTERNAL_CACHELINE_ALIGNED \
__attribute__((aligned(BENCHMARK_INTERNAL_CACHELINE_SIZE)))
#elif defined(_MSC_VER)
#define BENCHMARK_INTERNAL_CACHELINE_ALIGNED \
__declspec(align(BENCHMARK_INTERNAL_CACHELINE_SIZE))
#else
#define BENCHMARK_INTERNAL_CACHELINE_ALIGNED
#endif
#endif // BENCHMARK_MACROS_H_

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_MANAGERS_H_
#define BENCHMARK_MANAGERS_H_
#include <stdint.h>
#include <limits>
#include "benchmark/macros.h"
#include "benchmark/types.h"
namespace benchmark {
class MemoryManager {
public:
static constexpr int64_t TombstoneValue = std::numeric_limits<int64_t>::max();
struct Result {
Result()
: num_allocs(0),
max_bytes_used(0),
total_allocated_bytes(TombstoneValue),
net_heap_growth(TombstoneValue),
memory_iterations(0) {}
int64_t num_allocs;
int64_t max_bytes_used;
int64_t total_allocated_bytes;
int64_t net_heap_growth;
IterationCount memory_iterations;
};
virtual ~MemoryManager() {}
virtual void Start() = 0;
virtual void Stop(Result& result) = 0;
};
BENCHMARK_EXPORT
void RegisterMemoryManager(MemoryManager* memory_manager);
class ProfilerManager {
public:
virtual ~ProfilerManager() {}
virtual void AfterSetupStart() = 0;
virtual void BeforeTeardownStop() = 0;
};
BENCHMARK_EXPORT
void RegisterProfilerManager(ProfilerManager* profiler_manager);
} // namespace benchmark
#endif // BENCHMARK_MANAGERS_H_

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_REGISTRATION_H_
#define BENCHMARK_REGISTRATION_H_
#include "benchmark/benchmark_api.h"
#include "benchmark/macros.h"
#if defined(__clang__)
#define BENCHMARK_DISABLE_COUNTER_WARNING \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wunknown-warning-option\"") \
_Pragma("GCC diagnostic ignored \"-Wc2y-extensions\"")
#define BENCHMARK_RESTORE_COUNTER_WARNING _Pragma("GCC diagnostic pop")
#else
#define BENCHMARK_DISABLE_COUNTER_WARNING
#define BENCHMARK_RESTORE_COUNTER_WARNING
#endif
BENCHMARK_DISABLE_COUNTER_WARNING
#if defined(__COUNTER__) && (__COUNTER__ + 1 == __COUNTER__ + 0)
#define BENCHMARK_PRIVATE_UNIQUE_ID __COUNTER__
#else
#define BENCHMARK_PRIVATE_UNIQUE_ID __LINE__
#endif
BENCHMARK_RESTORE_COUNTER_WARNING
#define BENCHMARK_PRIVATE_NAME(...) \
BENCHMARK_PRIVATE_CONCAT(benchmark_uniq_, BENCHMARK_PRIVATE_UNIQUE_ID, \
__VA_ARGS__)
#define BENCHMARK_PRIVATE_CONCAT(a, b, c) BENCHMARK_PRIVATE_CONCAT2(a, b, c)
#define BENCHMARK_PRIVATE_CONCAT2(a, b, c) a##b##c
#define BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method) \
BaseClass##_##Method##_Benchmark
#define BENCHMARK_PRIVATE_DECLARE(n) \
BENCHMARK_DISABLE_COUNTER_WARNING \
static ::benchmark::Benchmark const* const BENCHMARK_PRIVATE_NAME(n) \
BENCHMARK_RESTORE_COUNTER_WARNING BENCHMARK_UNUSED
#define BENCHMARK(...) \
BENCHMARK_PRIVATE_DECLARE(_benchmark_) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique< \
::benchmark::internal::FunctionBenchmark>( \
#__VA_ARGS__, \
static_cast<::benchmark::internal::Function*>(__VA_ARGS__))))
#define BENCHMARK_WITH_ARG(n, a) BENCHMARK(n)->Arg((a))
#define BENCHMARK_WITH_ARG2(n, a1, a2) BENCHMARK(n)->Args({(a1), (a2)})
#define BENCHMARK_WITH_UNIT(n, t) BENCHMARK(n)->Unit((t))
#define BENCHMARK_RANGE(n, lo, hi) BENCHMARK(n)->Range((lo), (hi))
#define BENCHMARK_RANGE2(n, l1, h1, l2, h2) \
BENCHMARK(n)->RangePair({{(l1), (h1)}, {(l2), (h2)}})
#define BENCHMARK_CAPTURE(func, test_case_name, ...) \
BENCHMARK_PRIVATE_DECLARE(_benchmark_) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique< \
::benchmark::internal::FunctionBenchmark>( \
#func "/" #test_case_name, \
[](::benchmark::State& st) { func(st, __VA_ARGS__); })))
#define BENCHMARK_NAMED(func, test_case_name) \
BENCHMARK_PRIVATE_DECLARE(_benchmark_) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique< \
::benchmark::internal::FunctionBenchmark>( \
#func "/" #test_case_name, \
static_cast<::benchmark::internal::Function*>(func))))
#define BENCHMARK_TEMPLATE1(n, a) \
BENCHMARK_PRIVATE_DECLARE(n) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique< \
::benchmark::internal::FunctionBenchmark>( \
#n "<" #a ">", \
static_cast<::benchmark::internal::Function*>(n<a>))))
#define BENCHMARK_TEMPLATE2(n, a, b) \
BENCHMARK_PRIVATE_DECLARE(n) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique< \
::benchmark::internal::FunctionBenchmark>( \
#n "<" #a "," #b ">", \
static_cast<::benchmark::internal::Function*>(n<a, b>))))
#define BENCHMARK_TEMPLATE(n, ...) \
BENCHMARK_PRIVATE_DECLARE(n) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique< \
::benchmark::internal::FunctionBenchmark>( \
#n "<" #__VA_ARGS__ ">", \
static_cast<::benchmark::internal::Function*>(n<__VA_ARGS__>))))
#define BENCHMARK_TEMPLATE1_CAPTURE(func, a, test_case_name, ...) \
BENCHMARK_CAPTURE(func<a>, test_case_name, __VA_ARGS__)
#define BENCHMARK_TEMPLATE2_CAPTURE(func, a, b, test_case_name, ...) \
BENCHMARK_PRIVATE_DECLARE(func) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique< \
::benchmark::internal::FunctionBenchmark>( \
#func "<" #a "," #b ">" \
"/" #test_case_name, \
[](::benchmark::State& st) { func<a, b>(st, __VA_ARGS__); })))
#define BENCHMARK_PRIVATE_DECLARE_F(BaseClass, Method) \
class BaseClass##_##Method##_Benchmark : public BaseClass { \
public: \
BaseClass##_##Method##_Benchmark() { \
this->SetName(#BaseClass "/" #Method); \
} \
\
protected: \
void BenchmarkCase(::benchmark::State&) override; \
};
#define BENCHMARK_TEMPLATE1_PRIVATE_DECLARE_F(BaseClass, Method, a) \
class BaseClass##_##Method##_Benchmark : public BaseClass<a> { \
public: \
BaseClass##_##Method##_Benchmark() { \
this->SetName(#BaseClass "<" #a ">/" #Method); \
} \
\
protected: \
void BenchmarkCase(::benchmark::State&) override; \
};
#define BENCHMARK_TEMPLATE2_PRIVATE_DECLARE_F(BaseClass, Method, a, b) \
class BaseClass##_##Method##_Benchmark : public BaseClass<a, b> { \
public: \
BaseClass##_##Method##_Benchmark() { \
this->SetName(#BaseClass "<" #a "," #b ">/" #Method); \
} \
\
protected: \
void BenchmarkCase(::benchmark::State&) override; \
};
#define BENCHMARK_TEMPLATE_PRIVATE_DECLARE_F(BaseClass, Method, ...) \
class BaseClass##_##Method##_Benchmark : public BaseClass<__VA_ARGS__> { \
public: \
BaseClass##_##Method##_Benchmark() { \
this->SetName(#BaseClass "<" #__VA_ARGS__ ">/" #Method); \
} \
\
protected: \
void BenchmarkCase(::benchmark::State&) override; \
};
#define BENCHMARK_DEFINE_F(BaseClass, Method) \
BENCHMARK_PRIVATE_DECLARE_F(BaseClass, Method) \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_TEMPLATE1_DEFINE_F(BaseClass, Method, a) \
BENCHMARK_TEMPLATE1_PRIVATE_DECLARE_F(BaseClass, Method, a) \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_TEMPLATE2_DEFINE_F(BaseClass, Method, a, b) \
BENCHMARK_TEMPLATE2_PRIVATE_DECLARE_F(BaseClass, Method, a, b) \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_TEMPLATE_DEFINE_F(BaseClass, Method, ...) \
BENCHMARK_TEMPLATE_PRIVATE_DECLARE_F(BaseClass, Method, __VA_ARGS__) \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_REGISTER_F(BaseClass, Method) \
BENCHMARK_PRIVATE_REGISTER_F(BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method))
#define BENCHMARK_PRIVATE_REGISTER_F(TestName) \
BENCHMARK_PRIVATE_DECLARE(TestName) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique<TestName>()))
#define BENCHMARK_TEMPLATE_PRIVATE_CONCAT_NAME_F(BaseClass, Method) \
BaseClass##_##Method##_BenchmarkTemplate
#define BENCHMARK_TEMPLATE_METHOD_F(BaseClass, Method) \
template <class... Args> \
class BENCHMARK_TEMPLATE_PRIVATE_CONCAT_NAME_F(BaseClass, Method) \
: public BaseClass<Args...> { \
protected: \
using Base = BaseClass<Args...>; \
void BenchmarkCase(::benchmark::State&) override; \
}; \
template <class... Args> \
void BENCHMARK_TEMPLATE_PRIVATE_CONCAT_NAME_F( \
BaseClass, Method)<Args...>::BenchmarkCase
#define BENCHMARK_TEMPLATE_PRIVATE_INSTANTIATE_F(BaseClass, Method, \
UniqueName, ...) \
class UniqueName : public BENCHMARK_TEMPLATE_PRIVATE_CONCAT_NAME_F( \
BaseClass, Method)<__VA_ARGS__> { \
public: \
UniqueName() { this->SetName(#BaseClass "<" #__VA_ARGS__ ">/" #Method); } \
}; \
BENCHMARK_PRIVATE_DECLARE(BaseClass##_##Method##_Benchmark) = \
(::benchmark::internal::RegisterBenchmarkInternal( \
::benchmark::internal::make_unique<UniqueName>()))
#define BENCHMARK_TEMPLATE_INSTANTIATE_F(BaseClass, Method, ...) \
BENCHMARK_DISABLE_COUNTER_WARNING \
BENCHMARK_TEMPLATE_PRIVATE_INSTANTIATE_F( \
BaseClass, Method, BENCHMARK_PRIVATE_NAME(BaseClass##Method), \
__VA_ARGS__) \
BENCHMARK_RESTORE_COUNTER_WARNING
#define BENCHMARK_F(BaseClass, Method) \
BENCHMARK_PRIVATE_DECLARE_F(BaseClass, Method) \
BENCHMARK_REGISTER_F(BaseClass, Method); \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_TEMPLATE1_F(BaseClass, Method, a) \
BENCHMARK_TEMPLATE1_PRIVATE_DECLARE_F(BaseClass, Method, a) \
BENCHMARK_REGISTER_F(BaseClass, Method); \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_TEMPLATE2_F(BaseClass, Method, a, b) \
BENCHMARK_TEMPLATE2_PRIVATE_DECLARE_F(BaseClass, Method, a, b) \
BENCHMARK_REGISTER_F(BaseClass, Method); \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_TEMPLATE_F(BaseClass, Method, ...) \
BENCHMARK_TEMPLATE_PRIVATE_DECLARE_F(BaseClass, Method, __VA_ARGS__) \
void BENCHMARK_PRIVATE_CONCAT_NAME(BaseClass, Method)::BenchmarkCase
#define BENCHMARK_MAIN() \
int main(int argc, char** argv) { \
benchmark::MaybeReenterWithoutASLR(argc, argv); \
char arg0_default[] = "benchmark"; \
char* args_default = reinterpret_cast<char*>(arg0_default); \
if (!argv) { \
argc = 1; \
argv = &args_default; \
} \
::benchmark::Initialize(&argc, argv); \
if (::benchmark::ReportUnrecognizedArguments(argc, argv)) return 1; \
::benchmark::RunSpecifiedBenchmarks(); \
::benchmark::Shutdown(); \
return 0; \
} \
int main(int, char**)
#endif // BENCHMARK_REGISTRATION_H_

238
thirdparty/benchmark/include/benchmark/reporter.h vendored
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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_REPORTER_H_
#define BENCHMARK_REPORTER_H_
#if defined(_MSC_VER)
#pragma warning(push)
// C4251: <symbol> needs to have dll-interface to be used by clients of class
#pragma warning(disable : 4251)
#endif
#include <cassert>
#include <iostream>
#include <set>
#include <string>
#include <vector>
#include "benchmark/counter.h"
#include "benchmark/macros.h"
#include "benchmark/managers.h"
#include "benchmark/statistics.h"
#include "benchmark/sysinfo.h"
#include "benchmark/types.h"
namespace benchmark {
struct BENCHMARK_EXPORT BenchmarkName {
std::string function_name;
std::string args;
std::string min_time;
std::string min_warmup_time;
std::string iterations;
std::string repetitions;
std::string time_type;
std::string threads;
std::string str() const;
};
class BENCHMARK_EXPORT BenchmarkReporter {
public:
struct Context {
CPUInfo const& cpu_info;
SystemInfo const& sys_info;
size_t name_field_width = 0;
static const char* executable_name;
Context();
};
struct BENCHMARK_EXPORT Run {
static const int64_t no_repetition_index = -1;
enum RunType { RT_Iteration, RT_Aggregate };
Run()
: run_type(RT_Iteration),
aggregate_unit(kTime),
skipped(internal::NotSkipped),
iterations(1),
threads(1),
time_unit(kNanosecond),
real_accumulated_time(0),
cpu_accumulated_time(0),
max_heapbytes_used(0),
use_real_time_for_initial_big_o(false),
complexity(oNone),
complexity_lambda(),
complexity_n(0),
statistics(),
report_big_o(false),
report_rms(false),
allocs_per_iter(0.0) {}
std::string benchmark_name() const;
BenchmarkName run_name;
int64_t family_index;
int64_t per_family_instance_index;
RunType run_type;
std::string aggregate_name;
StatisticUnit aggregate_unit;
std::string report_label;
internal::Skipped skipped;
std::string skip_message;
IterationCount iterations;
int64_t threads;
int64_t repetition_index;
int64_t repetitions;
TimeUnit time_unit;
double real_accumulated_time;
double cpu_accumulated_time;
double GetAdjustedRealTime() const;
double GetAdjustedCPUTime() const;
double max_heapbytes_used;
bool use_real_time_for_initial_big_o;
BigO complexity;
BigOFunc* complexity_lambda;
ComplexityN complexity_n;
const std::vector<internal::Statistics>* statistics;
bool report_big_o;
bool report_rms;
UserCounters counters;
MemoryManager::Result memory_result;
double allocs_per_iter;
};
struct PerFamilyRunReports {
PerFamilyRunReports() : num_runs_total(0), num_runs_done(0) {}
int num_runs_total;
int num_runs_done;
std::vector<BenchmarkReporter::Run> Runs;
};
BenchmarkReporter();
virtual bool ReportContext(const Context& context) = 0;
virtual void ReportRunsConfig(double /*min_time*/,
bool /*has_explicit_iters*/,
IterationCount /*iters*/) {}
virtual void ReportRuns(const std::vector<Run>& report) = 0;
virtual void Finalize() {}
void SetOutputStream(std::ostream* out) {
assert(out);
output_stream_ = out;
}
void SetErrorStream(std::ostream* err) {
assert(err);
error_stream_ = err;
}
std::ostream& GetOutputStream() const { return *output_stream_; }
std::ostream& GetErrorStream() const { return *error_stream_; }
virtual ~BenchmarkReporter();
static void PrintBasicContext(std::ostream* out, Context const& context);
private:
std::ostream* output_stream_;
std::ostream* error_stream_;
};
class BENCHMARK_EXPORT ConsoleReporter : public BenchmarkReporter {
public:
enum OutputOptions {
OO_None = 0,
OO_Color = 1,
OO_Tabular = 2,
OO_ColorTabular = OO_Color | OO_Tabular,
OO_Defaults = OO_ColorTabular
};
explicit ConsoleReporter(OutputOptions opts_ = OO_Defaults)
: output_options_(opts_), name_field_width_(0), printed_header_(false) {}
bool ReportContext(const Context& context) override;
void ReportRuns(const std::vector<Run>& reports) override;
protected:
virtual void PrintRunData(const Run& result);
virtual void PrintHeader(const Run& run);
OutputOptions output_options_;
size_t name_field_width_;
UserCounters prev_counters_;
bool printed_header_;
};
class BENCHMARK_EXPORT JSONReporter : public BenchmarkReporter {
public:
JSONReporter() : first_report_(true) {}
bool ReportContext(const Context& context) override;
void ReportRuns(const std::vector<Run>& reports) override;
void Finalize() override;
private:
void PrintRunData(const Run& run);
bool first_report_;
};
class BENCHMARK_EXPORT BENCHMARK_DEPRECATED_MSG(
"The CSV Reporter will be removed in a future release") CSVReporter
: public BenchmarkReporter {
public:
CSVReporter() : printed_header_(false) {}
bool ReportContext(const Context& context) override;
void ReportRuns(const std::vector<Run>& reports) override;
private:
void PrintRunData(const Run& run);
bool printed_header_;
std::set<std::string> user_counter_names_;
};
inline const char* GetTimeUnitString(TimeUnit unit) {
switch (unit) {
case kSecond:
return "s";
case kMillisecond:
return "ms";
case kMicrosecond:
return "us";
case kNanosecond:
return "ns";
}
BENCHMARK_UNREACHABLE();
}
inline double GetTimeUnitMultiplier(TimeUnit unit) {
switch (unit) {
case kSecond:
return 1;
case kMillisecond:
return 1e3;
case kMicrosecond:
return 1e6;
case kNanosecond:
return 1e9;
}
BENCHMARK_UNREACHABLE();
}
} // namespace benchmark
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif // BENCHMARK_REPORTER_H_

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_STATE_H_
#define BENCHMARK_STATE_H_
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4251 4324)
#endif
#include <cassert>
#include <string>
#include <vector>
#include "benchmark/counter.h"
#include "benchmark/macros.h"
#include "benchmark/statistics.h"
#include "benchmark/types.h"
namespace benchmark {
namespace internal {
class BenchmarkInstance;
class ThreadTimer;
class ThreadManager;
class PerfCountersMeasurement;
} // namespace internal
class ProfilerManager;
class BENCHMARK_EXPORT BENCHMARK_INTERNAL_CACHELINE_ALIGNED State {
public:
struct StateIterator;
friend struct StateIterator;
inline BENCHMARK_ALWAYS_INLINE StateIterator begin();
inline BENCHMARK_ALWAYS_INLINE StateIterator end();
inline bool KeepRunning();
inline bool KeepRunningBatch(IterationCount n);
void PauseTiming();
void ResumeTiming();
void SkipWithMessage(const std::string& msg);
void SkipWithError(const std::string& msg);
bool skipped() const { return internal::NotSkipped != skipped_; }
bool error_occurred() const { return internal::SkippedWithError == skipped_; }
void SetIterationTime(double seconds);
BENCHMARK_ALWAYS_INLINE
void SetBytesProcessed(int64_t bytes) {
counters["bytes_per_second"] =
Counter(static_cast<double>(bytes), Counter::kIsRate, Counter::kIs1024);
}
BENCHMARK_ALWAYS_INLINE
int64_t bytes_processed() const {
if (counters.find("bytes_per_second") != counters.end())
return static_cast<int64_t>(counters.at("bytes_per_second"));
return 0;
}
BENCHMARK_ALWAYS_INLINE
void SetComplexityN(ComplexityN complexity_n) {
complexity_n_ = complexity_n;
}
BENCHMARK_ALWAYS_INLINE
ComplexityN complexity_length_n() const { return complexity_n_; }
BENCHMARK_ALWAYS_INLINE
void SetItemsProcessed(int64_t items) {
counters["items_per_second"] =
Counter(static_cast<double>(items), benchmark::Counter::kIsRate);
}
BENCHMARK_ALWAYS_INLINE
int64_t items_processed() const {
if (counters.find("items_per_second") != counters.end())
return static_cast<int64_t>(counters.at("items_per_second"));
return 0;
}
void SetLabel(const std::string& label);
BENCHMARK_ALWAYS_INLINE
int64_t range(std::size_t pos = 0) const {
assert(range_.size() > pos);
return range_[pos];
}
BENCHMARK_DEPRECATED_MSG("use 'range(0)' instead")
int64_t range_x() const { return range(0); }
BENCHMARK_DEPRECATED_MSG("use 'range(1)' instead")
int64_t range_y() const { return range(1); }
BENCHMARK_ALWAYS_INLINE
int threads() const { return threads_; }
BENCHMARK_ALWAYS_INLINE
int thread_index() const { return thread_index_; }
BENCHMARK_ALWAYS_INLINE
IterationCount iterations() const {
if (BENCHMARK_BUILTIN_EXPECT(!started_, false)) {
return 0;
}
return max_iterations - total_iterations_ + batch_leftover_;
}
BENCHMARK_ALWAYS_INLINE
std::string name() const { return name_; }
size_t range_size() const { return range_.size(); }
private:
IterationCount total_iterations_;
IterationCount batch_leftover_;
public:
const IterationCount max_iterations;
private:
bool started_;
bool finished_;
internal::Skipped skipped_;
std::vector<int64_t> range_;
ComplexityN complexity_n_;
public:
UserCounters counters;
private:
State(std::string name, IterationCount max_iters,
const std::vector<int64_t>& ranges, int thread_i, int n_threads,
internal::ThreadTimer* timer, internal::ThreadManager* manager,
internal::PerfCountersMeasurement* perf_counters_measurement,
ProfilerManager* profiler_manager);
void StartKeepRunning();
inline bool KeepRunningInternal(IterationCount n, bool is_batch);
void FinishKeepRunning();
const std::string name_;
const int thread_index_;
const int threads_;
internal::ThreadTimer* const timer_;
internal::ThreadManager* const manager_;
internal::PerfCountersMeasurement* const perf_counters_measurement_;
ProfilerManager* const profiler_manager_;
friend class internal::BenchmarkInstance;
};
inline BENCHMARK_ALWAYS_INLINE bool State::KeepRunning() {
return KeepRunningInternal(1, /*is_batch=*/false);
}
inline BENCHMARK_ALWAYS_INLINE bool State::KeepRunningBatch(IterationCount n) {
return KeepRunningInternal(n, /*is_batch=*/true);
}
inline BENCHMARK_ALWAYS_INLINE bool State::KeepRunningInternal(IterationCount n,
bool is_batch) {
assert(n > 0);
assert(is_batch || n == 1);
if (BENCHMARK_BUILTIN_EXPECT(total_iterations_ >= n, true)) {
total_iterations_ -= n;
return true;
}
if (!started_) {
StartKeepRunning();
if (!skipped() && total_iterations_ >= n) {
total_iterations_ -= n;
return true;
}
}
if (is_batch && total_iterations_ != 0) {
batch_leftover_ = n - total_iterations_;
total_iterations_ = 0;
return true;
}
FinishKeepRunning();
return false;
}
struct State::StateIterator {
struct BENCHMARK_UNUSED Value {};
typedef std::forward_iterator_tag iterator_category;
typedef Value value_type;
typedef Value reference;
typedef Value pointer;
typedef std::ptrdiff_t difference_type;
private:
friend class State;
BENCHMARK_ALWAYS_INLINE
StateIterator() : cached_(0), parent_() {}
BENCHMARK_ALWAYS_INLINE
explicit StateIterator(State* st)
: cached_(st->skipped() ? 0 : st->max_iterations), parent_(st) {}
public:
BENCHMARK_ALWAYS_INLINE
Value operator*() const { return Value(); }
BENCHMARK_ALWAYS_INLINE
StateIterator& operator++() {
assert(cached_ > 0);
--cached_;
return *this;
}
BENCHMARK_ALWAYS_INLINE
bool operator!=(StateIterator const&) const {
if (BENCHMARK_BUILTIN_EXPECT(cached_ != 0, true)) return true;
parent_->FinishKeepRunning();
return false;
}
private:
IterationCount cached_;
State* const parent_;
};
inline BENCHMARK_ALWAYS_INLINE State::StateIterator State::begin() {
return StateIterator(this);
}
inline BENCHMARK_ALWAYS_INLINE State::StateIterator State::end() {
StartKeepRunning();
return StateIterator();
}
class ScopedPauseTiming {
public:
explicit ScopedPauseTiming(State& state) : state_(state) {
state_.PauseTiming();
}
~ScopedPauseTiming() { state_.ResumeTiming(); }
ScopedPauseTiming(const ScopedPauseTiming&) = delete;
void operator=(const ScopedPauseTiming&) = delete;
ScopedPauseTiming(ScopedPauseTiming&&) = delete;
void operator=(ScopedPauseTiming&&) = delete;
private:
State& state_;
};
} // namespace benchmark
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif // BENCHMARK_STATE_H_

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thirdparty/benchmark/include/benchmark/statistics.h vendored
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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_STATISTICS_H_
#define BENCHMARK_STATISTICS_H_
#include <string>
#include <vector>
#include "benchmark/types.h"
namespace benchmark {
enum BigO { oNone, o1, oN, oNSquared, oNCubed, oLogN, oNLogN, oAuto, oLambda };
typedef int64_t ComplexityN;
enum StatisticUnit { kTime, kPercentage };
typedef double(BigOFunc)(ComplexityN);
typedef double(StatisticsFunc)(const std::vector<double>&);
namespace internal {
struct Statistics {
std::string name_;
StatisticsFunc* compute_;
StatisticUnit unit_;
Statistics(const std::string& name, StatisticsFunc* compute,
StatisticUnit unit = kTime)
: name_(name), compute_(compute), unit_(unit) {}
};
enum AggregationReportMode : unsigned {
ARM_Unspecified = 0,
ARM_Default = 1U << 0U,
ARM_FileReportAggregatesOnly = 1U << 1U,
ARM_DisplayReportAggregatesOnly = 1U << 2U,
ARM_ReportAggregatesOnly =
ARM_FileReportAggregatesOnly | ARM_DisplayReportAggregatesOnly
};
enum Skipped : unsigned {
NotSkipped = 0,
SkippedWithMessage,
SkippedWithError
};
} // namespace internal
} // namespace benchmark
#endif // BENCHMARK_STATISTICS_H_

71
thirdparty/benchmark/include/benchmark/sysinfo.h vendored
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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_SYSINFO_H_
#define BENCHMARK_SYSINFO_H_
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4251)
#endif
#include <string>
#include <vector>
#include "benchmark/macros.h"
namespace benchmark {
struct BENCHMARK_EXPORT CPUInfo {
struct CacheInfo {
std::string type;
int level;
int size;
int num_sharing;
};
enum Scaling { UNKNOWN, ENABLED, DISABLED };
int num_cpus;
Scaling scaling;
double cycles_per_second;
std::vector<CacheInfo> caches;
std::vector<double> load_avg;
static const CPUInfo& Get();
private:
CPUInfo();
BENCHMARK_DISALLOW_COPY_AND_ASSIGN(CPUInfo);
};
struct BENCHMARK_EXPORT SystemInfo {
enum class ASLR { UNKNOWN, ENABLED, DISABLED };
std::string name;
ASLR ASLRStatus;
static const SystemInfo& Get();
private:
SystemInfo();
BENCHMARK_DISALLOW_COPY_AND_ASSIGN(SystemInfo);
};
} // namespace benchmark
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif // BENCHMARK_SYSINFO_H_

50
thirdparty/benchmark/include/benchmark/types.h vendored
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@ -1,50 +0,0 @@
// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_TYPES_H_
#define BENCHMARK_TYPES_H_
#include <stdint.h>
#include <functional>
#include <memory>
#include <string>
#include "benchmark/export.h"
namespace benchmark {
namespace internal {
#if (__cplusplus < 201402L || (defined(_MSC_VER) && _MSVC_LANG < 201402L))
template <typename T, typename... Args>
std::unique_ptr<T> make_unique(Args&&... args) {
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
#else
using ::std::make_unique;
#endif
} // namespace internal
class BenchmarkReporter;
class State;
using IterationCount = int64_t;
using callback_function = std::function<void(const benchmark::State&)>;
enum TimeUnit { kNanosecond, kMicrosecond, kMillisecond, kSecond };
} // namespace benchmark
#endif // BENCHMARK_TYPES_H_

152
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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef BENCHMARK_UTILS_H_
#define BENCHMARK_UTILS_H_
#include <atomic>
#include <type_traits>
#include <utility>
#include "benchmark/export.h"
#include "benchmark/macros.h"
namespace benchmark {
namespace internal {
BENCHMARK_EXPORT void UseCharPointer(char const volatile*);
}
#if (!defined(__GNUC__) && !defined(__clang__)) || defined(__pnacl__) || \
defined(__EMSCRIPTEN__)
#define BENCHMARK_HAS_NO_INLINE_ASSEMBLY
#endif
inline BENCHMARK_ALWAYS_INLINE void ClobberMemory() {
std::atomic_signal_fence(std::memory_order_acq_rel);
}
#define BENCHMARK_DONOTOPTIMIZE_CONST_REF_DEPRECATED_MSG \
"DoNotOptimize(T const&) can permit undesired compiler optimizations. " \
"Pass a non-const lvalue instead; if the argument is an expression result, " \
"store it in a local variable first."
#ifndef BENCHMARK_HAS_NO_INLINE_ASSEMBLY
#if !defined(__GNUC__) || defined(__llvm__) || defined(__INTEL_COMPILER)
template <class Tp>
BENCHMARK_DEPRECATED_MSG(BENCHMARK_DONOTOPTIMIZE_CONST_REF_DEPRECATED_MSG)
inline BENCHMARK_ALWAYS_INLINE void DoNotOptimize(Tp const& value) {
asm volatile("" : : "r,m"(value) : "memory");
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE void DoNotOptimize(Tp& value) {
#if defined(__clang__)
asm volatile("" : "+r,m"(value) : : "memory");
#else
asm volatile("" : "+m,r"(value) : : "memory");
#endif
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE void DoNotOptimize(Tp&& value) {
#if defined(__clang__)
asm volatile("" : "+r,m"(value) : : "memory");
#else
asm volatile("" : "+m,r"(value) : : "memory");
#endif
}
#elif (__GNUC__ >= 5)
template <class Tp>
BENCHMARK_DEPRECATED_MSG(BENCHMARK_DONOTOPTIMIZE_CONST_REF_DEPRECATED_MSG)
inline BENCHMARK_ALWAYS_INLINE
typename std::enable_if<std::is_trivially_copyable<Tp>::value &&
(sizeof(Tp) <= sizeof(Tp*))>::type
DoNotOptimize(Tp const& value) {
asm volatile("" : : "r,m"(value) : "memory");
}
template <class Tp>
BENCHMARK_DEPRECATED_MSG(BENCHMARK_DONOTOPTIMIZE_CONST_REF_DEPRECATED_MSG)
inline BENCHMARK_ALWAYS_INLINE
typename std::enable_if<!std::is_trivially_copyable<Tp>::value ||
(sizeof(Tp) > sizeof(Tp*))>::type
DoNotOptimize(Tp const& value) {
asm volatile("" : : "m"(value) : "memory");
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE
typename std::enable_if<std::is_trivially_copyable<Tp>::value &&
(sizeof(Tp) <= sizeof(Tp*))>::type
DoNotOptimize(Tp& value) {
asm volatile("" : "+m,r"(value) : : "memory");
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE
typename std::enable_if<!std::is_trivially_copyable<Tp>::value ||
(sizeof(Tp) > sizeof(Tp*))>::type
DoNotOptimize(Tp& value) {
asm volatile("" : "+m"(value) : : "memory");
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE
typename std::enable_if<std::is_trivially_copyable<Tp>::value &&
(sizeof(Tp) <= sizeof(Tp*))>::type
DoNotOptimize(Tp&& value) {
asm volatile("" : "+m,r"(value) : : "memory");
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE
typename std::enable_if<!std::is_trivially_copyable<Tp>::value ||
(sizeof(Tp) > sizeof(Tp*))>::type
DoNotOptimize(Tp&& value) {
asm volatile("" : "+m"(value) : : "memory");
}
#endif
#elif defined(_MSC_VER)
template <class Tp>
BENCHMARK_DEPRECATED_MSG(BENCHMARK_DONOTOPTIMIZE_CONST_REF_DEPRECATED_MSG)
inline BENCHMARK_ALWAYS_INLINE void DoNotOptimize(Tp const& value) {
internal::UseCharPointer(&reinterpret_cast<char const volatile&>(value));
ClobberMemory();
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE void DoNotOptimize(Tp& value) {
internal::UseCharPointer(&reinterpret_cast<char const volatile&>(value));
ClobberMemory();
}
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE void DoNotOptimize(Tp&& value) {
internal::UseCharPointer(&reinterpret_cast<char const volatile&>(value));
ClobberMemory();
}
#else
template <class Tp>
inline BENCHMARK_ALWAYS_INLINE void DoNotOptimize(Tp&& value) {
internal::UseCharPointer(&reinterpret_cast<char const volatile&>(value));
}
#endif
#undef BENCHMARK_DONOTOPTIMIZE_CONST_REF_DEPRECATED_MSG
} // end namespace benchmark
#endif // BENCHMARK_UTILS_H_

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@ -1,76 +0,0 @@
[build-system]
requires = ["setuptools"]
build-backend = "setuptools.build_meta"
[project]
name = "google_benchmark"
description = "A library to benchmark code snippets."
requires-python = ">=3.10"
license = "Apache-2.0"
keywords = ["benchmark"]
authors = [{ name = "Google", email = "benchmark-discuss@googlegroups.com" }]
classifiers = [
"Development Status :: 4 - Beta",
"Intended Audience :: Developers",
"Intended Audience :: Science/Research",
"Programming Language :: Python :: 3.10",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"Topic :: Software Development :: Testing",
"Topic :: System :: Benchmark",
]
dynamic = ["readme", "version"]
[dependency-groups]
dev = ["pre-commit>=3.3.3"]
[project.urls]
Homepage = "https://github.com/google/benchmark"
Documentation = "https://github.com/google/benchmark/tree/main/docs"
Repository = "https://github.com/google/benchmark.git"
Discord = "https://discord.gg/cz7UX7wKC2"
[tool.setuptools]
package-dir = { "" = "bindings/python" }
zip-safe = false
[tool.setuptools.packages.find]
where = ["bindings/python"]
[tool.setuptools.dynamic]
readme = { file = "README.md", content-type = "text/markdown" }
version = { attr = "google_benchmark.__version__" }
[tool.mypy]
check_untyped_defs = true
disallow_incomplete_defs = true
pretty = true
python_version = "3.11"
strict_optional = false
warn_unreachable = true
[[tool.mypy.overrides]]
module = ["yaml"]
ignore_missing_imports = true
[tool.ruff]
# explicitly tell ruff the source directory to correctly identify first-party package.
src = ["bindings/python"]
line-length = 80
target-version = "py311"
[tool.ruff.lint]
# Enable pycodestyle (`E`, `W`), Pyflakes (`F`), and isort (`I`) codes by default.
select = ["ASYNC", "B", "C4", "C90", "E", "F", "I", "PERF", "PIE", "PT018", "RUF", "SIM", "UP", "W"]
ignore = [
"PLW2901", # redefined-loop-name
"UP031", # printf-string-formatting
]
[tool.ruff.lint.isort]
combine-as-imports = true

171
thirdparty/benchmark/setup.py vendored
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@ -1,171 +0,0 @@
import contextlib
import os
import platform
import re
import shutil
import sys
from collections.abc import Generator
from pathlib import Path
from typing import Any
import setuptools
from setuptools.command import build_ext
IS_WINDOWS = platform.system() == "Windows"
IS_MAC = platform.system() == "Darwin"
IS_LINUX = platform.system() == "Linux"
# hardcoded SABI-related options. Requires that each Python interpreter
# (hermetic or not) participating is of the same major-minor version.
py_limited_api = sys.version_info >= (3, 12)
options = {"bdist_wheel": {"py_limited_api": "cp312"}} if py_limited_api else {}
def is_cibuildwheel() -> bool:
return os.getenv("CIBUILDWHEEL") is not None
@contextlib.contextmanager
def _maybe_patch_toolchains() -> Generator[None, None, None]:
"""
Patch rules_python toolchains to ignore root user error
when run in a Docker container on Linux in cibuildwheel.
"""
def fmt_toolchain_args(matchobj):
suffix = "ignore_root_user_error = True"
callargs = matchobj.group(1)
# toolchain def is broken over multiple lines
if callargs.endswith("\n"):
callargs = callargs + " " + suffix + ",\n"
# toolchain def is on one line.
else:
callargs = callargs + ", " + suffix
return "python.toolchain(" + callargs + ")"
CIBW_LINUX = is_cibuildwheel() and IS_LINUX
module_bazel = Path("MODULE.bazel")
content: str = module_bazel.read_text()
try:
if CIBW_LINUX:
module_bazel.write_text(
re.sub(
r"python.toolchain\(([\w\"\s,.=]*)\)",
fmt_toolchain_args,
content,
)
)
yield
finally:
if CIBW_LINUX:
module_bazel.write_text(content)
class BazelExtension(setuptools.Extension):
"""A C/C++ extension that is defined as a Bazel BUILD target."""
def __init__(self, name: str, bazel_target: str, **kwargs: Any):
super().__init__(name=name, sources=[], **kwargs)
self.bazel_target = bazel_target
stripped_target = bazel_target.split("//")[-1]
self.relpath, self.target_name = stripped_target.split(":")
class BuildBazelExtension(build_ext.build_ext):
"""A command that runs Bazel to build a C/C++ extension."""
def run(self):
for ext in self.extensions:
self.bazel_build(ext)
# explicitly call `bazel shutdown` for graceful exit
self.spawn(["bazel", "shutdown"])
def copy_extensions_to_source(self):
"""
Copy generated extensions into the source tree.
This is done in the ``bazel_build`` method, so it's not necessary to
do again in the `build_ext` base class.
"""
def bazel_build(self, ext: BazelExtension) -> None: # noqa: C901
"""Runs the bazel build to create the package."""
temp_path = Path(self.build_temp)
# We round to the minor version, which makes rules_python
# look up the latest available patch version internally.
python_version = "{}.{}".format(*sys.version_info[:2])
bazel_argv = [
"bazel",
"run",
ext.bazel_target,
f"--symlink_prefix={temp_path / 'bazel-'}",
f"--compilation_mode={'dbg' if self.debug else 'opt'}",
# C++17 is required by nanobind
f"--cxxopt={'/std:c++17' if IS_WINDOWS else '-std=c++17'}",
f"--@rules_python//python/config_settings:python_version={python_version}",
]
if ext.py_limited_api:
bazel_argv += ["--@nanobind_bazel//:py-limited-api=cp312"]
if IS_WINDOWS:
# Link with python*.lib.
for library_dir in self.library_dirs:
bazel_argv.append("--linkopt=/LIBPATH:" + library_dir)
elif IS_MAC:
# C++17 needs macOS 10.14 at minimum
bazel_argv.append("--macos_minimum_os=10.14")
with _maybe_patch_toolchains():
self.spawn(bazel_argv)
if IS_WINDOWS:
suffix = ".pyd"
else:
suffix = ".abi3.so" if ext.py_limited_api else ".so"
# copy the Bazel build artifacts into setuptools' libdir,
# from where the wheel is built.
pkgname = "google_benchmark"
pythonroot = Path("bindings") / "python" / "google_benchmark"
srcdir = temp_path / "bazel-bin" / pythonroot
if not self.inplace:
libdir = Path(self.build_lib) / pkgname
else:
build_py = self.get_finalized_command("build_py")
libdir = Path(build_py.get_package_dir(pkgname))
for root, dirs, files in os.walk(srcdir, topdown=True):
# exclude runfiles directories and children.
dirs[:] = [d for d in dirs if "runfiles" not in d]
for f in files:
fp = Path(f)
should_copy = False
# we do not want the bare .so file included
# when building for ABI3, so we require a
# full and exact match on the file extension.
if "".join(fp.suffixes) == suffix or fp.suffix == ".pyi":
should_copy = True
elif Path(root) == srcdir and f == "py.typed":
# copy py.typed, but only at the package root.
should_copy = True
if should_copy:
shutil.copyfile(root / fp, libdir / fp)
setuptools.setup(
cmdclass={"build_ext": BuildBazelExtension},
package_data={"google_benchmark": ["py.typed", "*.pyi"]},
ext_modules=[
BazelExtension(
name="google_benchmark._benchmark",
bazel_target="//bindings/python/google_benchmark:benchmark_stubgen",
py_limited_api=py_limited_api,
)
],
options=options,
)

227
thirdparty/benchmark/src/CMakeLists.txt vendored
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@ -1,227 +0,0 @@
#Allow the source files to find headers in src /
include(GNUInstallDirs)
include_directories(${PROJECT_SOURCE_DIR}/src)
if (DEFINED BENCHMARK_CXX_LINKER_FLAGS)
list(APPEND CMAKE_SHARED_LINKER_FLAGS ${BENCHMARK_CXX_LINKER_FLAGS})
list(APPEND CMAKE_MODULE_LINKER_FLAGS ${BENCHMARK_CXX_LINKER_FLAGS})
endif()
file(GLOB
SOURCE_FILES
*.cc
${PROJECT_SOURCE_DIR}/include/benchmark/*.h
${CMAKE_CURRENT_SOURCE_DIR}/*.h)
file(GLOB BENCHMARK_MAIN "benchmark_main.cc")
foreach(item ${BENCHMARK_MAIN})
list(REMOVE_ITEM SOURCE_FILES "${item}")
endforeach()
add_library(benchmark ${SOURCE_FILES})
add_library(benchmark::benchmark ALIAS benchmark)
set_target_properties(benchmark PROPERTIES
OUTPUT_NAME "benchmark"
VERSION ${GENERIC_LIB_VERSION}
SOVERSION ${GENERIC_LIB_SOVERSION}
)
target_include_directories(benchmark PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
)
set_property(
SOURCE benchmark.cc
APPEND
PROPERTY COMPILE_DEFINITIONS
BENCHMARK_VERSION="${VERSION}"
)
# libpfm, if available
if (PFM_FOUND)
target_link_libraries(benchmark PRIVATE PFM::libpfm)
target_compile_definitions(benchmark PRIVATE -DHAVE_LIBPFM)
install(
FILES "${PROJECT_SOURCE_DIR}/cmake/Modules/FindPFM.cmake"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
endif()
# pthread affinity, if available
if(HAVE_PTHREAD_AFFINITY)
target_compile_definitions(benchmark PRIVATE -DBENCHMARK_HAS_PTHREAD_AFFINITY)
endif()
target_link_libraries(benchmark PRIVATE ${BENCHMARK_CXX_LIBRARIES})
if(HAVE_LIB_RT)
target_link_libraries(benchmark PRIVATE rt)
endif(HAVE_LIB_RT)
# We need extra libraries on Windows
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
target_link_libraries(benchmark PRIVATE shlwapi)
endif()
# We need extra libraries on Solaris
if(${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
target_link_libraries(benchmark PRIVATE kstat)
endif()
if (NOT BUILD_SHARED_LIBS)
target_compile_definitions(benchmark PUBLIC -DBENCHMARK_STATIC_DEFINE)
endif()
# Benchmark main library
add_library(benchmark_main "benchmark_main.cc")
add_library(benchmark::benchmark_main ALIAS benchmark_main)
set_target_properties(benchmark_main PROPERTIES
OUTPUT_NAME "benchmark_main"
VERSION ${GENERIC_LIB_VERSION}
SOVERSION ${GENERIC_LIB_SOVERSION}
DEFINE_SYMBOL benchmark_EXPORTS
)
target_link_libraries(benchmark_main PUBLIC benchmark::benchmark)
set(generated_dir "${PROJECT_BINARY_DIR}")
set(version_config "${generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
set(pkg_config "${generated_dir}/${PROJECT_NAME}.pc")
set(pkg_config_main "${generated_dir}/${PROJECT_NAME}_main.pc")
set(targets_to_export benchmark benchmark_main)
set(targets_export_name "${PROJECT_NAME}Targets")
set(namespace "${PROJECT_NAME}::")
include(CMakePackageConfigHelpers)
configure_package_config_file (
${PROJECT_SOURCE_DIR}/cmake/Config.cmake.in
${project_config}
INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
NO_SET_AND_CHECK_MACRO
NO_CHECK_REQUIRED_COMPONENTS_MACRO
)
write_basic_package_version_file(
"${version_config}" VERSION ${GENERIC_LIB_VERSION} COMPATIBILITY SameMajorVersion
)
# Derive private link libraries from target
if(NOT BUILD_SHARED_LIBS)
get_target_property(LINK_LIBS benchmark LINK_LIBRARIES)
if(LINK_LIBS)
set(BENCHMARK_PRIVATE_LINK_LIBRARIES "")
foreach(LIB IN LISTS LINK_LIBS)
if(NOT TARGET "${LIB}" AND LIB MATCHES "^[a-zA-Z0-9_.-]+$")
list(APPEND BENCHMARK_PRIVATE_LINK_LIBRARIES "-l${LIB}")
elseif(TARGET "${LIB}")
get_target_property(_target_type "${LIB}" TYPE)
if(_target_type MATCHES "^(UNKNOWN|STATIC|SHARED|MODULE)_LIBRARY$")
get_target_property(_imported_loc "${LIB}" IMPORTED_LOCATION)
if(_imported_loc)
get_filename_component(_imported_dir "${_imported_loc}" DIRECTORY)
get_filename_component(_imported_name "${_imported_loc}" NAME)
string(REGEX REPLACE "^lib" "" _imported_name "${_imported_name}")
string(REGEX REPLACE "\\.(so|a|dylib)([0-9.]*)$" "" _imported_name "${_imported_name}")
list(APPEND BENCHMARK_PRIVATE_LINK_LIBRARIES "-L${_imported_dir}" "-l${_imported_name}")
endif()
endif()
endif()
endforeach()
string(JOIN " " BENCHMARK_PRIVATE_LINK_LIBRARIES ${BENCHMARK_PRIVATE_LINK_LIBRARIES})
endif()
endif()
function(_cmake_path output_var install_dir path_prefix)
if(IS_ABSOLUTE "${install_dir}")
set("${output_var}" "${install_dir}" PARENT_SCOPE)
else()
# FIXME: Use cmake_path(APPEND) once the minimum CMake version is 3.20.
set("${output_var}" "\${${path_prefix}}/${install_dir}" PARENT_SCOPE)
endif()
endfunction()
_cmake_path(BENCHMARK_PKG_CONFIG_LIBDIR "${CMAKE_INSTALL_LIBDIR}" "exec_prefix")
_cmake_path(BENCHMARK_PKG_CONFIG_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}" "prefix")
configure_file("${PROJECT_SOURCE_DIR}/cmake/benchmark.pc.in" "${pkg_config}" @ONLY)
configure_file("${PROJECT_SOURCE_DIR}/cmake/benchmark_main.pc.in" "${pkg_config_main}" @ONLY)
export (
TARGETS ${targets_to_export}
NAMESPACE "${namespace}"
FILE ${generated_dir}/${targets_export_name}.cmake
)
if (BENCHMARK_ENABLE_INSTALL)
# Install target (will install the library to specified CMAKE_INSTALL_PREFIX variable)
install(
TARGETS ${targets_to_export}
EXPORT ${targets_export_name}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(
DIRECTORY "${PROJECT_SOURCE_DIR}/include/benchmark"
"${PROJECT_BINARY_DIR}/include/benchmark"
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
FILES_MATCHING PATTERN "*.*h")
install(
FILES "${project_config}" "${version_config}"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
install(
FILES "${pkg_config}" "${pkg_config_main}"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
install(
EXPORT "${targets_export_name}"
NAMESPACE "${namespace}"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
endif()
if (BENCHMARK_ENABLE_DOXYGEN)
find_package(Doxygen REQUIRED)
set(DOXYGEN_QUIET YES)
set(DOXYGEN_RECURSIVE YES)
set(DOXYGEN_GENERATE_HTML YES)
set(DOXYGEN_GENERATE_MAN NO)
set(DOXYGEN_MARKDOWN_SUPPORT YES)
set(DOXYGEN_BUILTIN_STL_SUPPORT YES)
set(DOXYGEN_EXTRACT_PACKAGE YES)
set(DOXYGEN_EXTRACT_STATIC YES)
set(DOXYGEN_SHOW_INCLUDE_FILES YES)
set(DOXYGEN_BINARY_TOC YES)
set(DOXYGEN_TOC_EXPAND YES)
set(DOXYGEN_USE_MDFILE_AS_MAINPAGE "index.md")
doxygen_add_docs(benchmark_doxygen
docs
include
src
ALL
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
COMMENT "Building documentation with Doxygen.")
if (BENCHMARK_ENABLE_INSTALL AND BENCHMARK_INSTALL_DOCS)
install(
DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/html/"
DESTINATION ${CMAKE_INSTALL_DOCDIR})
endif()
else()
if (BENCHMARK_ENABLE_INSTALL AND BENCHMARK_INSTALL_DOCS)
install(
DIRECTORY "${PROJECT_SOURCE_DIR}/docs/"
DESTINATION ${CMAKE_INSTALL_DOCDIR})
endif()
endif()
set(CMAKE_INSTALL_PYTOOLSDIR "${CMAKE_INSTALL_DATADIR}/googlebenchmark/tools" CACHE PATH "")
if (BENCHMARK_ENABLE_INSTALL AND BENCHMARK_INSTALL_TOOLS)
install(
DIRECTORY "${PROJECT_SOURCE_DIR}/tools/"
DESTINATION ${CMAKE_INSTALL_PYTOOLSDIR})
endif()

33
thirdparty/benchmark/src/arraysize.h vendored
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@ -1,33 +0,0 @@
#ifndef BENCHMARK_ARRAYSIZE_H_
#define BENCHMARK_ARRAYSIZE_H_
#include "internal_macros.h"
namespace benchmark {
namespace internal {
// The arraysize(arr) macro returns the # of elements in an array arr.
// The expression is a compile-time constant, and therefore can be
// used in defining new arrays, for example. If you use arraysize on
// a pointer by mistake, you will get a compile-time error.
//
// This template function declaration is used in defining arraysize.
// Note that the function doesn't need an implementation, as we only
// use its type.
template <typename T, size_t N>
char (&ArraySizeHelper(T (&array)[N]))[N];
// That gcc wants both of these prototypes seems mysterious. VC, for
// its part, can't decide which to use (another mystery). Matching of
// template overloads: the final frontier.
#ifndef COMPILER_MSVC
template <typename T, size_t N>
char (&ArraySizeHelper(const T (&array)[N]))[N];
#endif
#define arraysize(array) (sizeof(::benchmark::internal::ArraySizeHelper(array)))
} // end namespace internal
} // end namespace benchmark
#endif // BENCHMARK_ARRAYSIZE_H_

920
thirdparty/benchmark/src/benchmark.cc vendored
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@ -1,920 +0,0 @@
// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "benchmark/benchmark_api.h"
#include "benchmark/registration.h"
#include "benchmark/reporter.h"
#include "benchmark/state.h"
#include "benchmark/types.h"
#include "benchmark_api_internal.h"
#include "benchmark_runner.h"
#include "internal_macros.h"
#ifndef BENCHMARK_OS_WINDOWS
#if !defined(BENCHMARK_OS_FUCHSIA) && !defined(BENCHMARK_OS_QURT) && \
!defined(BENCHMARK_OS_WASI)
#include <sys/resource.h>
#endif
#include <sys/time.h>
#include <unistd.h>
#endif
#ifdef BENCHMARK_OS_LINUX
#include <sys/personality.h>
#endif
#include <algorithm>
#include <atomic>
#include <condition_variable>
#include <cstdio>
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <limits>
#include <map>
#include <memory>
#include <random>
#include <string>
#include <thread>
#include <utility>
#include "check.h"
#include "colorprint.h"
#include "commandlineflags.h"
#include "complexity.h"
#include "counter.h"
#include "log.h"
#include "mutex.h"
#include "perf_counters.h"
#include "re.h"
#include "statistics.h"
#include "string_util.h"
#include "thread_manager.h"
#include "thread_timer.h"
namespace benchmark {
// Print a list of benchmarks. This option overrides all other options.
BM_DEFINE_bool(benchmark_list_tests, false);
// A regular expression that specifies the set of benchmarks to execute. If
// this flag is empty, or if this flag is the string \"all\", all benchmarks
// linked into the binary are run.
BM_DEFINE_string(benchmark_filter, "");
// Specification of how long to run the benchmark.
//
// It can be either an exact number of iterations (specified as `<integer>x`),
// or a minimum number of seconds (specified as `<float>s`). If the latter
// format (ie., min seconds) is used, the system may run the benchmark longer
// until the results are considered significant.
//
// For backward compatibility, the `s` suffix may be omitted, in which case,
// the specified number is interpreted as the number of seconds.
//
// For cpu-time based tests, this is the lower bound
// on the total cpu time used by all threads that make up the test. For
// real-time based tests, this is the lower bound on the elapsed time of the
// benchmark execution, regardless of number of threads.
BM_DEFINE_string(benchmark_min_time, kDefaultMinTimeStr);
// Minimum number of seconds a benchmark should be run before results should be
// taken into account. This e.g can be necessary for benchmarks of code which
// needs to fill some form of cache before performance is of interest.
// Note: results gathered within this period are discarded and not used for
// reported result.
BM_DEFINE_double(benchmark_min_warmup_time, 0.0);
// The number of runs of each benchmark. If greater than 1, the mean and
// standard deviation of the runs will be reported.
BM_DEFINE_int32(benchmark_repetitions, 1);
// If enabled, forces each benchmark to execute exactly one iteration and one
// repetition, bypassing any configured
// MinTime()/MinWarmUpTime()/Iterations()/Repetitions()
BM_DEFINE_bool(benchmark_dry_run, false);
// If set, enable random interleaving of repetitions of all benchmarks.
// See http://github.com/google/benchmark/issues/1051 for details.
BM_DEFINE_bool(benchmark_enable_random_interleaving, false);
// Report the result of each benchmark repetitions. When 'true' is specified
// only the mean, standard deviation, and other statistics are reported for
// repeated benchmarks. Affects all reporters.
BM_DEFINE_bool(benchmark_report_aggregates_only, false);
// Display the result of each benchmark repetitions. When 'true' is specified
// only the mean, standard deviation, and other statistics are displayed for
// repeated benchmarks. Unlike benchmark_report_aggregates_only, only affects
// the display reporter, but *NOT* file reporter, which will still contain
// all the output.
BM_DEFINE_bool(benchmark_display_aggregates_only, false);
// The format to use for console output.
// Valid values are 'console', 'json', or 'csv'.
BM_DEFINE_string(benchmark_format, "console");
// The format to use for file output.
// Valid values are 'console', 'json', or 'csv'.
BM_DEFINE_string(benchmark_out_format, "json");
// The file to write additional output to.
BM_DEFINE_string(benchmark_out, "");
// Whether to use colors in the output. Valid values:
// 'true'/'yes'/1, 'false'/'no'/0, and 'auto'. 'auto' means to use colors if
// the output is being sent to a terminal and the TERM environment variable is
// set to a terminal type that supports colors.
BM_DEFINE_string(benchmark_color, "auto");
// Whether to use tabular format when printing user counters to the console.
// Valid values: 'true'/'yes'/1, 'false'/'no'/0. Defaults to false.
BM_DEFINE_bool(benchmark_counters_tabular, false);
// List of additional perf counters to collect, in libpfm format. For more
// information about libpfm: https://man7.org/linux/man-pages/man3/libpfm.3.html
BM_DEFINE_string(benchmark_perf_counters, "");
// Extra context to include in the output formatted as comma-separated key-value
// pairs. Kept internal as it's only used for parsing from env/command line.
BM_DEFINE_kvpairs(benchmark_context, {});
// Set the default time unit to use for reports
// Valid values are 'ns', 'us', 'ms' or 's'
BM_DEFINE_string(benchmark_time_unit, "");
// The level of verbose logging to output
BM_DEFINE_int32(v, 0);
namespace internal {
// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
std::map<std::string, std::string>* global_context = nullptr;
BENCHMARK_EXPORT std::map<std::string, std::string>*& GetGlobalContext() {
return global_context;
}
namespace {
// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
void const volatile* volatile global_force_escape_pointer;
} // namespace
// FIXME: Verify if LTO still messes this up?
void UseCharPointer(char const volatile* const v) {
// We want to escape the pointer `v` so that the compiler can not eliminate
// computations that produced it. To do that, we escape the pointer by storing
// it into a volatile variable, since generally, volatile store, is not
// something the compiler is allowed to elide.
global_force_escape_pointer = reinterpret_cast<void const volatile*>(v);
}
} // namespace internal
State::State(std::string name, IterationCount max_iters,
const std::vector<int64_t>& ranges, int thread_i, int n_threads,
internal::ThreadTimer* timer, internal::ThreadManager* manager,
internal::PerfCountersMeasurement* perf_counters_measurement,
ProfilerManager* profiler_manager)
: total_iterations_(0),
batch_leftover_(0),
max_iterations(max_iters),
started_(false),
finished_(false),
skipped_(internal::NotSkipped),
range_(ranges),
complexity_n_(0),
name_(std::move(name)),
thread_index_(thread_i),
threads_(n_threads),
timer_(timer),
manager_(manager),
perf_counters_measurement_(perf_counters_measurement),
profiler_manager_(profiler_manager) {
BM_CHECK(max_iterations != 0) << "At least one iteration must be run";
BM_CHECK_LT(thread_index_, threads_)
<< "thread_index must be less than threads";
// Add counters with correct flag now. If added with `counters[name]` in
// `PauseTiming`, a new `Counter` will be inserted the first time, which
// won't have the flag. Inserting them now also reduces the allocations
// during the benchmark.
if (perf_counters_measurement_ != nullptr) {
for (const std::string& counter_name :
perf_counters_measurement_->names()) {
counters[counter_name] = Counter(0.0, Counter::kAvgIterations);
}
}
// Note: The use of offsetof below is technically undefined until C++17
// because State is not a standard layout type. However, all compilers
// currently provide well-defined behavior as an extension (which is
// demonstrated since constexpr evaluation must diagnose all undefined
// behavior). However, GCC and Clang also warn about this use of offsetof,
// which must be suppressed.
#if defined(__INTEL_COMPILER)
#pragma warning push
#pragma warning(disable : 1875)
#elif defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Winvalid-offsetof"
#endif
#if defined(__NVCC__)
#pragma nv_diagnostic push
#pragma nv_diag_suppress 1427
#endif
#if defined(__NVCOMPILER)
#pragma diagnostic push
#pragma diag_suppress offset_in_non_POD_nonstandard
#endif
// Offset tests to ensure commonly accessed data is on the first cache line.
const int cache_line_size = 64;
static_assert(
offsetof(State, skipped_) <= (cache_line_size - sizeof(skipped_)), "");
#if defined(__INTEL_COMPILER)
#pragma warning pop
#elif defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic pop
#endif
#if defined(__NVCC__)
#pragma nv_diagnostic pop
#endif
#if defined(__NVCOMPILER)
#pragma diagnostic pop
#endif
}
void State::PauseTiming() {
// Add in time accumulated so far
BM_CHECK(started_ && !finished_ && !skipped());
timer_->StopTimer();
if (perf_counters_measurement_ != nullptr) {
std::vector<std::pair<std::string, double>> measurements;
if (!perf_counters_measurement_->Stop(measurements)) {
BM_CHECK(false) << "Perf counters read the value failed.";
}
for (const auto& name_and_measurement : measurements) {
const std::string& name = name_and_measurement.first;
const double measurement = name_and_measurement.second;
// Counter was inserted with `kAvgIterations` flag by the constructor.
assert(counters.find(name) != counters.end());
counters[name].value += measurement;
}
}
}
void State::ResumeTiming() {
BM_CHECK(started_ && !finished_ && !skipped());
timer_->StartTimer();
if (perf_counters_measurement_ != nullptr) {
perf_counters_measurement_->Start();
}
}
void State::SkipWithMessage(const std::string& msg) {
skipped_ = internal::SkippedWithMessage;
{
MutexLock l(manager_->GetBenchmarkMutex());
if (internal::NotSkipped == manager_->results.skipped_) {
manager_->results.skip_message_ = msg;
manager_->results.skipped_ = skipped_;
}
}
total_iterations_ = 0;
if (timer_->running()) {
timer_->StopTimer();
}
}
void State::SkipWithError(const std::string& msg) {
skipped_ = internal::SkippedWithError;
{
MutexLock l(manager_->GetBenchmarkMutex());
if (internal::NotSkipped == manager_->results.skipped_) {
manager_->results.skip_message_ = msg;
manager_->results.skipped_ = skipped_;
}
}
total_iterations_ = 0;
if (timer_->running()) {
timer_->StopTimer();
}
}
void State::SetIterationTime(double seconds) {
timer_->SetIterationTime(seconds);
}
void State::SetLabel(const std::string& label) {
MutexLock l(manager_->GetBenchmarkMutex());
manager_->results.report_label_ = label;
}
void State::StartKeepRunning() {
BM_CHECK(!started_ && !finished_);
started_ = true;
total_iterations_ = skipped() ? 0 : max_iterations;
if (BENCHMARK_BUILTIN_EXPECT(profiler_manager_ != nullptr, false)) {
profiler_manager_->AfterSetupStart();
}
manager_->StartStopBarrier();
if (!skipped()) {
ResumeTiming();
}
}
void State::FinishKeepRunning() {
BM_CHECK(started_ && (!finished_ || skipped()));
if (!skipped()) {
PauseTiming();
}
// Total iterations has now wrapped around past 0. Fix this.
total_iterations_ = 0;
finished_ = true;
manager_->StartStopBarrier();
if (BENCHMARK_BUILTIN_EXPECT(profiler_manager_ != nullptr, false)) {
profiler_manager_->BeforeTeardownStop();
}
}
namespace internal {
namespace {
// Flushes streams after invoking reporter methods that write to them. This
// ensures users get timely updates even when streams are not line-buffered.
void FlushStreams(BenchmarkReporter* reporter) {
if (reporter == nullptr) {
return;
}
std::flush(reporter->GetOutputStream());
std::flush(reporter->GetErrorStream());
}
// Reports in both display and file reporters.
void Report(BenchmarkReporter* display_reporter,
BenchmarkReporter* file_reporter, const RunResults& run_results) {
auto report_one = [](BenchmarkReporter* reporter, bool aggregates_only,
const RunResults& results) {
assert(reporter);
// If there are no aggregates, do output non-aggregates.
aggregates_only &= !results.aggregates_only.empty();
if (!aggregates_only) {
reporter->ReportRuns(results.non_aggregates);
}
if (!results.aggregates_only.empty()) {
reporter->ReportRuns(results.aggregates_only);
}
};
report_one(display_reporter, run_results.display_report_aggregates_only,
run_results);
if (file_reporter != nullptr) {
report_one(file_reporter, run_results.file_report_aggregates_only,
run_results);
}
FlushStreams(display_reporter);
FlushStreams(file_reporter);
}
void RunBenchmarks(const std::vector<BenchmarkInstance>& benchmarks,
BenchmarkReporter* display_reporter,
BenchmarkReporter* file_reporter) {
// Note the file_reporter can be null.
BM_CHECK(display_reporter != nullptr);
// Determine the width of the name field using a minimum width of 10.
bool might_have_aggregates = FLAGS_benchmark_repetitions > 1;
size_t name_field_width = 10;
size_t stat_field_width = 0;
for (const BenchmarkInstance& benchmark : benchmarks) {
name_field_width =
std::max<size_t>(name_field_width, benchmark.name().str().size());
might_have_aggregates |= benchmark.repetitions() > 1;
for (const auto& Stat : benchmark.statistics()) {
stat_field_width = std::max<size_t>(stat_field_width, Stat.name_.size());
}
}
if (might_have_aggregates) {
name_field_width += 1 + stat_field_width;
}
// Print header here
BenchmarkReporter::Context context;
context.name_field_width = name_field_width;
// Keep track of running times of all instances of each benchmark family.
std::map<int /*family_index*/, BenchmarkReporter::PerFamilyRunReports>
per_family_reports;
if (display_reporter->ReportContext(context) &&
((file_reporter == nullptr) || file_reporter->ReportContext(context))) {
FlushStreams(display_reporter);
FlushStreams(file_reporter);
size_t num_repetitions_total = 0;
// This perfcounters object needs to be created before the runners vector
// below so it outlasts their lifetime.
PerfCountersMeasurement perfcounters(
StrSplit(FLAGS_benchmark_perf_counters, ','));
// Vector of benchmarks to run
std::vector<internal::BenchmarkRunner> runners;
runners.reserve(benchmarks.size());
// Count the number of benchmarks with threads to warn the user in case
// performance counters are used.
int benchmarks_with_threads = 0;
// Loop through all benchmarks
for (const BenchmarkInstance& benchmark : benchmarks) {
BenchmarkReporter::PerFamilyRunReports* reports_for_family = nullptr;
if (benchmark.complexity() != oNone) {
reports_for_family = &per_family_reports[benchmark.family_index()];
}
benchmarks_with_threads += static_cast<int>(benchmark.threads() > 1);
runners.emplace_back(benchmark, &perfcounters, reports_for_family);
int num_repeats_of_this_instance = runners.back().GetNumRepeats();
num_repetitions_total +=
static_cast<size_t>(num_repeats_of_this_instance);
if (reports_for_family != nullptr) {
reports_for_family->num_runs_total += num_repeats_of_this_instance;
}
}
assert(runners.size() == benchmarks.size() && "Unexpected runner count.");
// The use of performance counters with threads would be unintuitive for
// the average user so we need to warn them about this case
if ((benchmarks_with_threads > 0) && (perfcounters.num_counters() > 0)) {
GetErrorLogInstance()
<< "***WARNING*** There are " << benchmarks_with_threads
<< " benchmarks with threads and " << perfcounters.num_counters()
<< " performance counters were requested. Beware counters will "
"reflect the combined usage across all "
"threads.\n";
}
std::vector<size_t> repetition_indices;
repetition_indices.reserve(num_repetitions_total);
for (size_t runner_index = 0, num_runners = runners.size();
runner_index != num_runners; ++runner_index) {
const internal::BenchmarkRunner& runner = runners[runner_index];
std::fill_n(std::back_inserter(repetition_indices),
runner.GetNumRepeats(), runner_index);
}
assert(repetition_indices.size() == num_repetitions_total &&
"Unexpected number of repetition indexes.");
if (FLAGS_benchmark_enable_random_interleaving) {
std::random_device rd;
std::mt19937 g(rd());
std::shuffle(repetition_indices.begin(), repetition_indices.end(), g);
}
for (size_t repetition_index : repetition_indices) {
internal::BenchmarkRunner& runner = runners[repetition_index];
runner.DoOneRepetition();
if (runner.HasRepeatsRemaining()) {
continue;
}
// FIXME: report each repetition separately, not all of them in bulk.
display_reporter->ReportRunsConfig(
runner.GetMinTime(), runner.HasExplicitIters(), runner.GetIters());
if (file_reporter != nullptr) {
file_reporter->ReportRunsConfig(
runner.GetMinTime(), runner.HasExplicitIters(), runner.GetIters());
}
RunResults run_results = runner.GetResults();
// Maybe calculate complexity report
if (const auto* reports_for_family = runner.GetReportsForFamily()) {
if (reports_for_family->num_runs_done ==
reports_for_family->num_runs_total) {
auto additional_run_stats = ComputeBigO(reports_for_family->Runs);
run_results.aggregates_only.insert(run_results.aggregates_only.end(),
additional_run_stats.begin(),
additional_run_stats.end());
per_family_reports.erase(
static_cast<int>(reports_for_family->Runs.front().family_index));
}
}
Report(display_reporter, file_reporter, run_results);
}
}
display_reporter->Finalize();
if (file_reporter != nullptr) {
file_reporter->Finalize();
}
FlushStreams(display_reporter);
FlushStreams(file_reporter);
}
// Disable deprecated warnings temporarily because we need to reference
// CSVReporter but don't want to trigger -Werror=-Wdeprecated-declarations
BENCHMARK_DISABLE_DEPRECATED_WARNING
std::unique_ptr<BenchmarkReporter> CreateReporter(
std::string const& name, ConsoleReporter::OutputOptions output_opts) {
typedef std::unique_ptr<BenchmarkReporter> PtrType;
if (name == "console") {
return PtrType(new ConsoleReporter(output_opts));
}
if (name == "json") {
return PtrType(new JSONReporter());
}
if (name == "csv") {
return PtrType(new CSVReporter());
}
std::cerr << "Unexpected format: '" << name << "'\n";
std::flush(std::cerr);
std::exit(1);
}
BENCHMARK_RESTORE_DEPRECATED_WARNING
} // end namespace
bool IsZero(double n) {
return std::abs(n) < std::numeric_limits<double>::epsilon();
}
ConsoleReporter::OutputOptions GetOutputOptions(bool force_no_color) {
int output_opts = ConsoleReporter::OO_Defaults;
auto is_benchmark_color = [force_no_color]() -> bool {
if (force_no_color) {
return false;
}
if (FLAGS_benchmark_color == "auto") {
return IsColorTerminal();
}
return IsTruthyFlagValue(FLAGS_benchmark_color);
};
if (is_benchmark_color()) {
output_opts |= ConsoleReporter::OO_Color;
} else {
output_opts &= ~ConsoleReporter::OO_Color;
}
if (FLAGS_benchmark_counters_tabular) {
output_opts |= ConsoleReporter::OO_Tabular;
} else {
output_opts &= ~ConsoleReporter::OO_Tabular;
}
return static_cast<ConsoleReporter::OutputOptions>(output_opts);
}
} // end namespace internal
BenchmarkReporter* CreateDefaultDisplayReporter() {
static auto* default_display_reporter =
internal::CreateReporter(FLAGS_benchmark_format,
internal::GetOutputOptions())
.release();
return default_display_reporter;
}
size_t RunSpecifiedBenchmarks() {
return RunSpecifiedBenchmarks(nullptr, nullptr, FLAGS_benchmark_filter);
}
size_t RunSpecifiedBenchmarks(std::string spec) {
return RunSpecifiedBenchmarks(nullptr, nullptr, std::move(spec));
}
size_t RunSpecifiedBenchmarks(BenchmarkReporter* display_reporter) {
return RunSpecifiedBenchmarks(display_reporter, nullptr,
FLAGS_benchmark_filter);
}
size_t RunSpecifiedBenchmarks(BenchmarkReporter* display_reporter,
std::string spec) {
return RunSpecifiedBenchmarks(display_reporter, nullptr, std::move(spec));
}
size_t RunSpecifiedBenchmarks(BenchmarkReporter* display_reporter,
BenchmarkReporter* file_reporter) {
return RunSpecifiedBenchmarks(display_reporter, file_reporter,
FLAGS_benchmark_filter);
}
size_t RunSpecifiedBenchmarks(BenchmarkReporter* display_reporter,
BenchmarkReporter* file_reporter,
std::string spec) {
if (spec.empty() || spec == "all") {
spec = "."; // Regexp that matches all benchmarks
}
// Setup the reporters
std::ofstream output_file;
std::unique_ptr<BenchmarkReporter> default_display_reporter;
std::unique_ptr<BenchmarkReporter> default_file_reporter;
if (display_reporter == nullptr) {
default_display_reporter.reset(CreateDefaultDisplayReporter());
display_reporter = default_display_reporter.get();
}
auto& Out = display_reporter->GetOutputStream();
auto& Err = display_reporter->GetErrorStream();
std::string const& fname = FLAGS_benchmark_out;
if (fname.empty() && (file_reporter != nullptr)) {
Err << "A custom file reporter was provided but "
"--benchmark_out=<file> was not specified.\n";
Out.flush();
Err.flush();
std::exit(1);
}
if (!fname.empty()) {
output_file.open(fname);
if (!output_file.is_open()) {
Err << "invalid file name: '" << fname << "'\n";
Out.flush();
Err.flush();
std::exit(1);
}
if (file_reporter == nullptr) {
default_file_reporter = internal::CreateReporter(
FLAGS_benchmark_out_format, FLAGS_benchmark_counters_tabular
? ConsoleReporter::OO_Tabular
: ConsoleReporter::OO_None);
file_reporter = default_file_reporter.get();
}
file_reporter->SetOutputStream(&output_file);
file_reporter->SetErrorStream(&output_file);
}
std::vector<internal::BenchmarkInstance> benchmarks;
if (!FindBenchmarksInternal(spec, &benchmarks, &Err)) {
Out.flush();
Err.flush();
return 0;
}
if (benchmarks.empty()) {
Err << "Failed to match any benchmarks against regex: " << spec << "\n";
Out.flush();
Err.flush();
return 0;
}
if (FLAGS_benchmark_list_tests) {
for (auto const& benchmark : benchmarks) {
Out << benchmark.name().str() << "\n";
}
} else {
internal::RunBenchmarks(benchmarks, display_reporter, file_reporter);
}
Out.flush();
Err.flush();
return benchmarks.size();
}
namespace {
// stores the time unit benchmarks use by default
TimeUnit default_time_unit = kNanosecond;
} // namespace
TimeUnit GetDefaultTimeUnit() { return default_time_unit; }
void SetDefaultTimeUnit(TimeUnit unit) { default_time_unit = unit; }
std::string GetBenchmarkFilter() { return FLAGS_benchmark_filter; }
void SetBenchmarkFilter(std::string value) {
FLAGS_benchmark_filter = std::move(value);
}
int32_t GetBenchmarkVerbosity() { return FLAGS_v; }
void RegisterMemoryManager(MemoryManager* manager) {
internal::memory_manager = manager;
}
void RegisterProfilerManager(ProfilerManager* manager) {
// Don't allow overwriting an existing manager.
if (manager != nullptr) {
BM_CHECK_EQ(internal::profiler_manager, nullptr);
}
internal::profiler_manager = manager;
}
void AddCustomContext(std::string key, std::string value) {
if (internal::global_context == nullptr) {
internal::global_context = new std::map<std::string, std::string>();
}
if (!internal::global_context->emplace(std::move(key), std::move(value))
.second) {
std::cerr << "Failed to add custom context \"" << key << "\" as it already "
<< "exists with value \"" << value << "\"\n";
}
}
namespace internal {
void (*HelperPrintf)();
namespace {
void PrintUsageAndExit() {
HelperPrintf();
std::flush(std::cout);
std::flush(std::cerr);
std::exit(0);
}
void SetDefaultTimeUnitFromFlag(const std::string& time_unit_flag) {
if (time_unit_flag == "s") {
return SetDefaultTimeUnit(kSecond);
}
if (time_unit_flag == "ms") {
return SetDefaultTimeUnit(kMillisecond);
}
if (time_unit_flag == "us") {
return SetDefaultTimeUnit(kMicrosecond);
}
if (time_unit_flag == "ns") {
return SetDefaultTimeUnit(kNanosecond);
}
if (!time_unit_flag.empty()) {
PrintUsageAndExit();
}
}
void ParseCommandLineFlags(int* argc, char** argv) {
using namespace benchmark;
BenchmarkReporter::Context::executable_name =
((argc != nullptr) && *argc > 0) ? argv[0] : "unknown";
for (int i = 1; (argc != nullptr) && i < *argc; ++i) {
if (ParseBoolFlag(argv[i], "benchmark_list_tests",
&FLAGS_benchmark_list_tests) ||
ParseStringFlag(argv[i], "benchmark_filter", &FLAGS_benchmark_filter) ||
ParseStringFlag(argv[i], "benchmark_min_time",
&FLAGS_benchmark_min_time) ||
ParseDoubleFlag(argv[i], "benchmark_min_warmup_time",
&FLAGS_benchmark_min_warmup_time) ||
ParseInt32Flag(argv[i], "benchmark_repetitions",
&FLAGS_benchmark_repetitions) ||
ParseBoolFlag(argv[i], "benchmark_dry_run", &FLAGS_benchmark_dry_run) ||
ParseBoolFlag(argv[i], "benchmark_enable_random_interleaving",
&FLAGS_benchmark_enable_random_interleaving) ||
ParseBoolFlag(argv[i], "benchmark_report_aggregates_only",
&FLAGS_benchmark_report_aggregates_only) ||
ParseBoolFlag(argv[i], "benchmark_display_aggregates_only",
&FLAGS_benchmark_display_aggregates_only) ||
ParseStringFlag(argv[i], "benchmark_format", &FLAGS_benchmark_format) ||
ParseStringFlag(argv[i], "benchmark_out", &FLAGS_benchmark_out) ||
ParseStringFlag(argv[i], "benchmark_out_format",
&FLAGS_benchmark_out_format) ||
ParseStringFlag(argv[i], "benchmark_color", &FLAGS_benchmark_color) ||
ParseBoolFlag(argv[i], "benchmark_counters_tabular",
&FLAGS_benchmark_counters_tabular) ||
ParseStringFlag(argv[i], "benchmark_perf_counters",
&FLAGS_benchmark_perf_counters) ||
ParseKeyValueFlag(argv[i], "benchmark_context",
&FLAGS_benchmark_context) ||
ParseStringFlag(argv[i], "benchmark_time_unit",
&FLAGS_benchmark_time_unit) ||
ParseInt32Flag(argv[i], "v", &FLAGS_v)) {
for (int j = i; j != *argc - 1; ++j) {
argv[j] = argv[j + 1];
}
--(*argc);
--i;
} else if (IsFlag(argv[i], "help")) {
PrintUsageAndExit();
}
}
for (auto const* flag :
{&FLAGS_benchmark_format, &FLAGS_benchmark_out_format}) {
if (*flag != "console" && *flag != "json" && *flag != "csv") {
PrintUsageAndExit();
}
}
SetDefaultTimeUnitFromFlag(FLAGS_benchmark_time_unit);
if (FLAGS_benchmark_color.empty()) {
PrintUsageAndExit();
}
if (FLAGS_benchmark_dry_run) {
AddCustomContext("dry_run", "true");
}
for (const auto& kv : FLAGS_benchmark_context) {
AddCustomContext(kv.first, kv.second);
}
}
} // end namespace
int InitializeStreams() {
static std::ios_base::Init init;
return 0;
}
template <typename T>
std::make_unsigned_t<T> get_as_unsigned(T v) {
using UnsignedT = std::make_unsigned_t<T>;
return static_cast<UnsignedT>(v);
}
} // end namespace internal
void MaybeReenterWithoutASLR(int /*argc*/, char** argv) {
// On e.g. Hexagon simulator, argv may be NULL.
if (!argv) return;
#ifdef BENCHMARK_OS_LINUX
const auto curr_personality = personality(0xffffffff);
// We should never fail to read-only query the current personality,
// but let's be cautious.
if (curr_personality == -1) return;
// If ASLR is already disabled, we have nothing more to do.
if (internal::get_as_unsigned(curr_personality) & ADDR_NO_RANDOMIZE) return;
// Try to change the personality to disable ASLR.
const auto proposed_personality =
internal::get_as_unsigned(curr_personality) | ADDR_NO_RANDOMIZE;
const auto prev_personality = personality(proposed_personality);
// Have we failed to change the personality? That may happen.
if (prev_personality == -1) return;
// Make sure the parsona has been updated with the no-ASLR flag,
// otherwise we will try to reenter infinitely.
// This seems impossible, but can happen in some docker configurations.
const auto new_personality = personality(0xffffffff);
if ((internal::get_as_unsigned(new_personality) & ADDR_NO_RANDOMIZE) == 0)
return;
execv(argv[0], argv);
// The exec() functions return only if an error has occurred,
// in which case we want to just continue as-is.
#else
return;
#endif
}
std::string GetBenchmarkVersion() {
#ifdef BENCHMARK_VERSION
return {BENCHMARK_VERSION};
#else
return {""};
#endif
}
void PrintDefaultHelp() {
fprintf(stdout,
"benchmark"
" [--benchmark_list_tests={true|false}]\n"
" [--benchmark_filter=<regex>]\n"
" [--benchmark_min_time=`<integer>x` OR `<float>s` ]\n"
" [--benchmark_min_warmup_time=<min_warmup_time>]\n"
" [--benchmark_repetitions=<num_repetitions>]\n"
" [--benchmark_dry_run={true|false}]\n"
" [--benchmark_enable_random_interleaving={true|false}]\n"
" [--benchmark_report_aggregates_only={true|false}]\n"
" [--benchmark_display_aggregates_only={true|false}]\n"
" [--benchmark_format=<console|json|csv>]\n"
" [--benchmark_out=<filename>]\n"
" [--benchmark_out_format=<json|console|csv>]\n"
" [--benchmark_color={auto|true|false}]\n"
" [--benchmark_counters_tabular={true|false}]\n"
#if defined HAVE_LIBPFM
" [--benchmark_perf_counters=<counter>,...]\n"
#endif
" [--benchmark_context=<key>=<value>,...]\n"
" [--benchmark_time_unit={ns|us|ms|s}]\n"
" [--v=<verbosity>]\n");
}
void Initialize(int* argc, char** argv, void (*HelperPrintf)()) {
internal::HelperPrintf = HelperPrintf;
internal::ParseCommandLineFlags(argc, argv);
internal::LogLevel() = FLAGS_v;
}
void Shutdown() { delete internal::global_context; }
bool ReportUnrecognizedArguments(int argc, char** argv) {
for (int i = 1; i < argc; ++i) {
fprintf(stderr, "%s: error: unrecognized command-line flag: %s\n", argv[0],
argv[i]);
}
return argc > 1;
}
} // end namespace benchmark

119
thirdparty/benchmark/src/benchmark_api_internal.cc vendored
View File

@ -1,119 +0,0 @@
#include "benchmark_api_internal.h"
#include <cinttypes>
#include "string_util.h"
namespace benchmark {
namespace internal {
BenchmarkInstance::BenchmarkInstance(benchmark::Benchmark* benchmark,
int family_idx,
int per_family_instance_idx,
const std::vector<int64_t>& args,
int thread_count)
: benchmark_(*benchmark),
family_index_(family_idx),
per_family_instance_index_(per_family_instance_idx),
aggregation_report_mode_(benchmark_.aggregation_report_mode_),
args_(args),
time_unit_(benchmark_.GetTimeUnit()),
measure_process_cpu_time_(benchmark_.measure_process_cpu_time_),
use_real_time_(benchmark_.use_real_time_),
use_manual_time_(benchmark_.use_manual_time_),
complexity_(benchmark_.complexity_),
complexity_lambda_(benchmark_.complexity_lambda_),
statistics_(benchmark_.statistics_),
repetitions_(benchmark_.repetitions_),
min_time_(benchmark_.min_time_),
min_warmup_time_(benchmark_.min_warmup_time_),
iterations_(benchmark_.iterations_),
threads_(thread_count),
setup_(benchmark_.setup_),
teardown_(benchmark_.teardown_) {
name_.function_name = benchmark_.name_;
size_t arg_i = 0;
for (const auto& arg : args) {
if (!name_.args.empty()) {
name_.args += '/';
}
if (arg_i < benchmark->arg_names_.size()) {
const auto& arg_name = benchmark_.arg_names_[arg_i];
if (!arg_name.empty()) {
name_.args += StrFormat("%s:", arg_name.c_str());
}
}
name_.args += StrFormat("%" PRId64, arg);
++arg_i;
}
if (!IsZero(benchmark->min_time_)) {
name_.min_time = StrFormat("min_time:%0.3f", benchmark_.min_time_);
}
if (!IsZero(benchmark->min_warmup_time_)) {
name_.min_warmup_time =
StrFormat("min_warmup_time:%0.3f", benchmark_.min_warmup_time_);
}
if (benchmark_.iterations_ != 0) {
name_.iterations = StrFormat(
"iterations:%lu", static_cast<unsigned long>(benchmark_.iterations_));
}
if (benchmark_.repetitions_ != 0) {
name_.repetitions = StrFormat("repeats:%d", benchmark_.repetitions_);
}
if (benchmark_.measure_process_cpu_time_) {
name_.time_type = "process_time";
}
if (benchmark_.use_manual_time_) {
if (!name_.time_type.empty()) {
name_.time_type += '/';
}
name_.time_type += "manual_time";
} else if (benchmark_.use_real_time_) {
if (!name_.time_type.empty()) {
name_.time_type += '/';
}
name_.time_type += "real_time";
}
if (!benchmark_.thread_counts_.empty()) {
name_.threads = StrFormat("threads:%d", threads_);
}
}
State BenchmarkInstance::Run(
IterationCount iters, int thread_id, internal::ThreadTimer* timer,
internal::ThreadManager* manager,
internal::PerfCountersMeasurement* perf_counters_measurement,
ProfilerManager* profiler_manager) const {
State st(name_.function_name, iters, args_, thread_id, threads_, timer,
manager, perf_counters_measurement, profiler_manager);
benchmark_.Run(st);
return st;
}
void BenchmarkInstance::Setup() const {
if (setup_ != nullptr) {
State st(name_.function_name, /*iters*/ 1, args_, /*thread_id*/ 0, threads_,
nullptr, nullptr, nullptr, nullptr);
setup_(st);
}
}
void BenchmarkInstance::Teardown() const {
if (teardown_ != nullptr) {
State st(name_.function_name, /*iters*/ 1, args_, /*thread_id*/ 0, threads_,
nullptr, nullptr, nullptr, nullptr);
teardown_(st);
}
}
} // namespace internal
} // namespace benchmark

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