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/*
* Copyright Matt Borland 2022.
* Distributed under the Boost Software License, Version 1.0. (See
* accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
#include <cstdint>
#include <random>
#include <boost/random/random_device.hpp>
#include <boost/random/mersenne_twister.hpp>
#include <benchmark/benchmark.h>
#include "../include/boost/random/splitmix64.hpp"
template <typename T>
void stl_mt19937_64(benchmark::State& state)
{
std::random_device rd;
std::mt19937_64 gen{rd()};
for (auto _ : state)
{
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
}
}
template <typename T>
void boost_mt19937_64(benchmark::State& state)
{
boost::random::random_device rd;
boost::random::mt19937_64 gen{rd()};
for (auto _ : state)
{
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
benchmark::DoNotOptimize(gen());
}
}
template <typename T>
void boost_splitmix64(benchmark::State& state)
{
boost::random::splitmix64 rd;
for (auto _ : state)
{
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
benchmark::DoNotOptimize(rd());
}
}
BENCHMARK_TEMPLATE(stl_mt19937_64, std::uint64_t);
BENCHMARK_TEMPLATE(boost_mt19937_64, std::uint64_t);
BENCHMARK_TEMPLATE(boost_splitmix64, std::uint64_t);
BENCHMARK_MAIN();
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