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#include <library/cpp/testing/benchmark/bench.h>
#include <util/random/entropy.h>
#include <util/random/fast.h>
#include <util/random/normal.h>
#include <util/random/mersenne.h>
#include <util/system/compiler.h>
#include <util/generic/xrange.h>
#include <random>
// double part
Y_CPU_BENCHMARK(Mersenne32_Double, p) {
TMersenne<ui32> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRandReal1());
}
}
Y_CPU_BENCHMARK(Mersenne64_Double, p) {
TMersenne<ui64> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRandReal1());
}
}
Y_CPU_BENCHMARK(Fast32_Double, p) {
TFastRng<ui32> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRandReal1());
}
}
Y_CPU_BENCHMARK(Fast64_Double, p) {
TFastRng<ui64> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRandReal1());
}
}
// integer part
Y_CPU_BENCHMARK(mt19937_32, p) {
std::mt19937 mt;
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(mt());
}
}
Y_CPU_BENCHMARK(mt19937_64, p) {
std::mt19937_64 mt;
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(mt());
}
}
Y_CPU_BENCHMARK(Mersenne32_GenRand, p) {
TMersenne<ui32> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRand());
}
}
Y_CPU_BENCHMARK(Mersenne64_GenRand, p) {
TMersenne<ui64> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRand());
}
}
Y_CPU_BENCHMARK(Fast32_GenRand, p) {
TFastRng<ui32> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRand());
}
}
Y_CPU_BENCHMARK(Fast64_GenRand, p) {
TFastRng<ui64> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(rng.GenRand());
}
}
Y_CPU_BENCHMARK(StlNormal, p) {
TFastRng<ui64> rng(Seed());
std::normal_distribution<double> d(1.0, 0.0);
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(d(rng));
}
}
Y_CPU_BENCHMARK(UtilNormal, p) {
TFastRng<ui64> rng(Seed());
for (auto i : xrange<size_t>(0, p.Iterations())) {
(void)i;
Y_DO_NOT_OPTIMIZE_AWAY(NormalDistribution<double>(rng, 1.0, 0.0));
}
}
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