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