sfizz/benchmarks/BM_looping.cpp
2019-08-30 00:49:58 +02:00

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3.9 KiB
C++

// Copyright (c) 2019, Paul Ferrand
// All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <benchmark/benchmark.h>
#include <vector>
#include <random>
#include <numeric>
#include <absl/algorithm/container.h>
#include "../sources/SIMDHelpers.h"
// In this one we have an array of indices
constexpr int loopStart { 5 };
constexpr int loopEnd { 1076 };
constexpr float maxJump { 4 };
class LoopingFixture : public benchmark::Fixture {
public:
void SetUp(const ::benchmark::State& state) {
std::random_device rd { };
std::mt19937 gen { rd() };
std::uniform_real_distribution<float> dist { 0, maxJump };
indices = std::vector<int>(state.range(0));
leftCoeffs = std::vector<float>(state.range(0));
rightCoeffs = std::vector<float>(state.range(0));
jumps = std::vector<float>(state.range(0));
absl::c_generate(jumps, [&]() { return dist(gen); });
}
void TearDown(const ::benchmark::State& state [[maybe_unused]]) {
}
std::vector<int> indices;
std::vector<float> leftCoeffs;
std::vector<float> rightCoeffs;
std::vector<float> jumps;
};
BENCHMARK_DEFINE_F(LoopingFixture, Scalar)(benchmark::State& state) {
for (auto _ : state)
{
loopingSFZIndex<float, false>(jumps, absl::MakeSpan(leftCoeffs), absl::MakeSpan(rightCoeffs), absl::MakeSpan(indices), 2.5f, loopEnd, loopStart);
}
}
BENCHMARK_DEFINE_F(LoopingFixture, SIMD)(benchmark::State& state) {
for (auto _ : state)
{
loopingSFZIndex<float, true>(jumps, absl::MakeSpan(leftCoeffs), absl::MakeSpan(rightCoeffs), absl::MakeSpan(indices), 2.5f, loopEnd, loopStart);
}
}
BENCHMARK_DEFINE_F(LoopingFixture, Scalar_Unaligned)(benchmark::State& state) {
for (auto _ : state)
{
loopingSFZIndex<float, false>(absl::MakeSpan(jumps).subspan(1), absl::MakeSpan(leftCoeffs).subspan(2), absl::MakeSpan(rightCoeffs).subspan(1), absl::MakeSpan(indices).subspan(3), 2.5f, loopEnd, loopStart);
}
}
BENCHMARK_DEFINE_F(LoopingFixture, SIMD_Unaligned)(benchmark::State& state) {
for (auto _ : state)
{
loopingSFZIndex<float, true>(absl::MakeSpan(jumps).subspan(1), absl::MakeSpan(leftCoeffs).subspan(2), absl::MakeSpan(rightCoeffs).subspan(1), absl::MakeSpan(indices).subspan(3), 2.5f, loopEnd, loopStart);
}
}
// Register the function as a benchmark
BENCHMARK_REGISTER_F(LoopingFixture, Scalar)->RangeMultiplier(2)->Range((2<<6), (2<<12));
BENCHMARK_REGISTER_F(LoopingFixture, SIMD)->RangeMultiplier(2)->Range((2<<6), (2<<12));
BENCHMARK_REGISTER_F(LoopingFixture, Scalar_Unaligned)->RangeMultiplier(2)->Range((2<<6), (2<<12));
BENCHMARK_REGISTER_F(LoopingFixture, SIMD_Unaligned)->RangeMultiplier(2)->Range((2<<6), (2<<12));
BENCHMARK_MAIN();