bitcoin/src/bench/examples.cpp

34 lines
798 B
C++

// Copyright (c) 2015-2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <bench/bench.h>
#include <util/time.h>
// Sanity test: this should loop ten times, and
// min/max/average should be close to 100ms.
static void Sleep100ms(benchmark::State& state)
{
while (state.KeepRunning()) {
MilliSleep(100);
}
}
BENCHMARK(Sleep100ms, 10);
// Extremely fast-running benchmark:
#include <math.h>
volatile double sum = 0.0; // volatile, global so not optimized away
static void Trig(benchmark::State& state)
{
double d = 0.01;
while (state.KeepRunning()) {
sum += sin(d);
d += 0.000001;
}
}
BENCHMARK(Trig, 12 * 1000 * 1000);