basic_test.cpp 4.03 KB
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/*
 * @author  TPOC: palisade@njit.edu
 *
 * @copyright Copyright (c) 2017, New Jersey Institute of Technology (NJIT)
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or other
 * materials provided with the distribution.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#include "benchmark/benchmark_api.h"

#define BASIC_BENCHMARK_TEST(x) BENCHMARK(x)->Arg(8)->Arg(512)->Arg(8192)

void BM_empty(benchmark::State& state) {
  while (state.KeepRunning()) {
    benchmark::DoNotOptimize(state.iterations());
  }
}
BENCHMARK(BM_empty);
BENCHMARK(BM_empty)->ThreadPerCpu();

void BM_spin_empty(benchmark::State& state) {
  while (state.KeepRunning()) {
    for (int x = 0; x < state.range(0); ++x) {
      benchmark::DoNotOptimize(x);
    }
  }
}
BASIC_BENCHMARK_TEST(BM_spin_empty);
BASIC_BENCHMARK_TEST(BM_spin_empty)->ThreadPerCpu();

void BM_spin_pause_before(benchmark::State& state) {
  for (int i = 0; i < state.range(0); ++i) {
    benchmark::DoNotOptimize(i);
  }
  while (state.KeepRunning()) {
    for (int i = 0; i < state.range(0); ++i) {
      benchmark::DoNotOptimize(i);
    }
  }
}
BASIC_BENCHMARK_TEST(BM_spin_pause_before);
BASIC_BENCHMARK_TEST(BM_spin_pause_before)->ThreadPerCpu();

void BM_spin_pause_during(benchmark::State& state) {
  while (state.KeepRunning()) {
    state.PauseTiming();
    for (int i = 0; i < state.range(0); ++i) {
      benchmark::DoNotOptimize(i);
    }
    state.ResumeTiming();
    for (int i = 0; i < state.range(0); ++i) {
      benchmark::DoNotOptimize(i);
    }
  }
}
BASIC_BENCHMARK_TEST(BM_spin_pause_during);
BASIC_BENCHMARK_TEST(BM_spin_pause_during)->ThreadPerCpu();

void BM_pause_during(benchmark::State& state) {
  while (state.KeepRunning()) {
    state.PauseTiming();
    state.ResumeTiming();
  }
}
BENCHMARK(BM_pause_during);
BENCHMARK(BM_pause_during)->ThreadPerCpu();
BENCHMARK(BM_pause_during)->UseRealTime();
BENCHMARK(BM_pause_during)->UseRealTime()->ThreadPerCpu();

void BM_spin_pause_after(benchmark::State& state) {
  while (state.KeepRunning()) {
    for (int i = 0; i < state.range(0); ++i) {
      benchmark::DoNotOptimize(i);
    }
  }
  for (int i = 0; i < state.range(0); ++i) {
    benchmark::DoNotOptimize(i);
  }
}
BASIC_BENCHMARK_TEST(BM_spin_pause_after);
BASIC_BENCHMARK_TEST(BM_spin_pause_after)->ThreadPerCpu();

void BM_spin_pause_before_and_after(benchmark::State& state) {
  for (int i = 0; i < state.range(0); ++i) {
    benchmark::DoNotOptimize(i);
  }
  while (state.KeepRunning()) {
    for (int i = 0; i < state.range(0); ++i) {
      benchmark::DoNotOptimize(i);
    }
  }
  for (int i = 0; i < state.range(0); ++i) {
    benchmark::DoNotOptimize(i);
  }
}
BASIC_BENCHMARK_TEST(BM_spin_pause_before_and_after);
BASIC_BENCHMARK_TEST(BM_spin_pause_before_and_after)->ThreadPerCpu();

void BM_empty_stop_start(benchmark::State& state) {
  while (state.KeepRunning()) {
  }
}
BENCHMARK(BM_empty_stop_start);
BENCHMARK(BM_empty_stop_start)->ThreadPerCpu();

BENCHMARK_MAIN()