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df9ab80113
MSVC++ before 2015 Update 2 has a bug in sleep_for where it tries to implicitly += the input with a nanoseconds variable. Work around this by using nanoseconds directly (which can be implicitly +='d with chrono::nanoseconds).
43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
#include "benchmark/benchmark_api.h"
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#include <chrono>
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#include <thread>
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void BM_basic(benchmark::State& state) {
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while (state.KeepRunning()) {
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}
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}
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void BM_basic_slow(benchmark::State& state) {
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std::chrono::milliseconds sleep_duration(state.range_x());
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while (state.KeepRunning()) {
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std::this_thread::sleep_for(
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std::chrono::duration_cast<std::chrono::nanoseconds>(sleep_duration)
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);
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}
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}
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BENCHMARK(BM_basic);
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BENCHMARK(BM_basic)->Arg(42);
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BENCHMARK(BM_basic_slow)->Arg(10)->Unit(benchmark::kNanosecond);
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BENCHMARK(BM_basic_slow)->Arg(100)->Unit(benchmark::kMicrosecond);
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BENCHMARK(BM_basic_slow)->Arg(1000)->Unit(benchmark::kMillisecond);
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BENCHMARK(BM_basic)->Range(1, 8);
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BENCHMARK(BM_basic)->DenseRange(10, 15);
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BENCHMARK(BM_basic)->ArgPair(42, 42);
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BENCHMARK(BM_basic)->RangePair(64, 512, 64, 512);
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BENCHMARK(BM_basic)->MinTime(0.7);
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BENCHMARK(BM_basic)->UseRealTime();
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BENCHMARK(BM_basic)->ThreadRange(2, 4);
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BENCHMARK(BM_basic)->ThreadPerCpu();
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void CustomArgs(benchmark::internal::Benchmark* b) {
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for (int i = 0; i < 10; ++i) {
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b->Arg(i);
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}
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}
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BENCHMARK(BM_basic)->Apply(CustomArgs);
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BENCHMARK_MAIN()
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