#include "benchmark/benchmark_api.h" #include #include void BM_basic(benchmark::State& state) { while (state.KeepRunning()) { } } void BM_basic_slow(benchmark::State& state) { std::chrono::milliseconds sleep_duration(state.range_x()); while (state.KeepRunning()) { // Simulate some useful workload by sleeping. // Note: std::this_thread::sleep_for doesn't work with GCC 4.7 on some // platforms. const auto sleep_end = std::chrono::steady_clock::now() + sleep_duration; while (std::chrono::steady_clock::now() < sleep_end) {} } } BENCHMARK(BM_basic); BENCHMARK(BM_basic)->Arg(42); BENCHMARK(BM_basic_slow)->Arg(10)->Unit(benchmark::kNanosecond); BENCHMARK(BM_basic_slow)->Arg(100)->Unit(benchmark::kMicrosecond); BENCHMARK(BM_basic_slow)->Arg(1000)->Unit(benchmark::kMillisecond); BENCHMARK(BM_basic)->Range(1, 8); BENCHMARK(BM_basic)->RangeMultiplier(2)->Range(1, 8); BENCHMARK(BM_basic)->DenseRange(10, 15); BENCHMARK(BM_basic)->ArgPair(42, 42); BENCHMARK(BM_basic)->RangePair(64, 512, 64, 512); BENCHMARK(BM_basic)->MinTime(0.7); BENCHMARK(BM_basic)->UseRealTime(); BENCHMARK(BM_basic)->ThreadRange(2, 4); BENCHMARK(BM_basic)->ThreadPerCpu(); BENCHMARK(BM_basic)->Repetitions(3); void CustomArgs(benchmark::internal::Benchmark* b) { for (int i = 0; i < 10; ++i) { b->Arg(i); } } BENCHMARK(BM_basic)->Apply(CustomArgs); BENCHMARK_MAIN()