utils/google-benchmark/test/options_test.cc

   1 #include "benchmark/benchmark_api.h"
   2
   3 #include <chrono>
   4 #include <thread>
   5
   6 void BM_basic(benchmark::State& state) {
   7   while (state.KeepRunning()) {
   8   }
   9 }
  10
  11 void BM_basic_slow(benchmark::State& state) {
  12   std::chrono::milliseconds sleep_duration(state.range(0));
  13   while (state.KeepRunning()) {
  14     std::this_thread::sleep_for(
  15         std::chrono::duration_cast<std::chrono::nanoseconds>(sleep_duration));
  16   }
  17 }
  18
  19 BENCHMARK(BM_basic);
  20 BENCHMARK(BM_basic)->Arg(42);
  21 BENCHMARK(BM_basic_slow)->Arg(10)->Unit(benchmark::kNanosecond);
  22 BENCHMARK(BM_basic_slow)->Arg(100)->Unit(benchmark::kMicrosecond);
  23 BENCHMARK(BM_basic_slow)->Arg(1000)->Unit(benchmark::kMillisecond);
  24 BENCHMARK(BM_basic)->Range(1, 8);
  25 BENCHMARK(BM_basic)->RangeMultiplier(2)->Range(1, 8);
  26 BENCHMARK(BM_basic)->DenseRange(10, 15);
  27 BENCHMARK(BM_basic)->Args({42, 42});
  28 BENCHMARK(BM_basic)->Ranges({{64, 512}, {64, 512}});
  29 BENCHMARK(BM_basic)->MinTime(0.7);
  30 BENCHMARK(BM_basic)->UseRealTime();
  31 BENCHMARK(BM_basic)->ThreadRange(2, 4);
  32 BENCHMARK(BM_basic)->ThreadPerCpu();
  33 BENCHMARK(BM_basic)->Repetitions(3);
  34
  35 void CustomArgs(benchmark::internal::Benchmark* b) {
  36   for (int i = 0; i < 10; ++i) {
  37     b->Arg(i);
  38   }
  39 }
  40
  41 BENCHMARK(BM_basic)->Apply(CustomArgs);
  42
  43 BENCHMARK_MAIN()