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bm_common.cpp
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Thu, Jan 16, 08:42

bm_common.cpp
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// this file is a micro-benchmark of the specmicp common libs
// It uses the google/benchmark framework
#include <benchmark/benchmark.h>
#include "specmicp_common/range_iterator.hpp"
#include "specmicp_common/timer.hpp"
#include "specmicp_common/moving_average.hpp"
using namespace specmicp;
// Range iterator
// ==============
static void BMSimpleLoop(benchmark::State& state) {
while (state.KeepRunning()) {
for (int i=0; i<100; ++i) {
benchmark::DoNotOptimize(i);
}
}
}
BENCHMARK(BMSimpleLoop);
static void BMRangeIterator(benchmark::State& state) {
while (state.KeepRunning()) {
for (auto it: RangeIterator<int>(100)) {
benchmark::DoNotOptimize(it);
}
}
}
BENCHMARK(BMRangeIterator);
// Timer
// =====
static void BMTimer(benchmark::State& state) {
while (state.KeepRunning()) {
Timer timer;
timer.stop();
}
}
BENCHMARK(BMTimer);
static void BMTimer_restart(benchmark::State& state) {
while (state.KeepRunning()) {
Timer timer;
timer.start();
timer.stop();
}
}
BENCHMARK(BMTimer_restart);
static void BMTimer_elapsedtime(benchmark::State& state) {
while (state.KeepRunning()) {
Timer timer;
timer.stop();
scalar_t x;
benchmark::DoNotOptimize(x = timer.elapsed_time());
}
}
BENCHMARK(BMTimer_elapsedtime);
// Moving Average
// ==============
static void BMMovingAverage_init(benchmark::State& state) {
while (state.KeepRunning()) {
utils::ExponentialMovingAverage average(0.2, 1.0);
benchmark::DoNotOptimize(average);
}
}
BENCHMARK(BMMovingAverage_init);
static void BMMovingAverage_addpoint(benchmark::State& state) {
while (state.KeepRunning()) {
utils::ExponentialMovingAverage average(0.2, 1.0);
scalar_t x;
benchmark::DoNotOptimize(x = average.add_point(2.0));
}
}
BENCHMARK(BMMovingAverage_addpoint);
BENCHMARK_MAIN()

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