87 lines
No EOL
3.2 KiB
C++
87 lines
No EOL
3.2 KiB
C++
// Copyright (c) 2019, Paul Ferrand
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// All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <benchmark/benchmark.h>
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#include "../sources/SIMDHelpers.h"
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#include "../sources/Buffer.h"
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#include <algorithm>
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#include <random>
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#include <numeric>
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static void Dummy(benchmark::State& state) {
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Buffer<float> buffer (state.range(0));
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std::random_device rd { };
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std::mt19937 gen { rd() };
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std::uniform_real_distribution<float> dist { 1, 2 };
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for (auto _ : state) {
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auto fillValue = dist(gen);
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benchmark::DoNotOptimize(fillValue);
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}
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}
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static void FillScalar(benchmark::State& state) {
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Buffer<float> buffer (state.range(0));
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std::random_device rd { };
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std::mt19937 gen { rd() };
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std::uniform_real_distribution<float> dist { 1, 2 };
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for (auto _ : state) {
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fill<float, false>(absl::MakeSpan(buffer), dist(gen));
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}
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}
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static void FillScalar_unaligned(benchmark::State& state) {
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Buffer<float> buffer (state.range(0));
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std::random_device rd { };
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std::mt19937 gen { rd() };
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std::uniform_real_distribution<float> dist { 1, 2 };
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for (auto _ : state) {
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fill<float, false>(absl::MakeSpan(buffer).subspan(1), dist(gen));
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}
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}
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static void FillSIMD(benchmark::State& state) {
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Buffer<float> buffer (state.range(0));
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std::random_device rd { };
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std::mt19937 gen { rd() };
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std::uniform_real_distribution<float> dist { 1, 2 };
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for (auto _ : state) {
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fill<float, true>(absl::MakeSpan(buffer), dist(gen));
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}
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}
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static void FillSIMD_unaligned(benchmark::State& state) {
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Buffer<float> buffer (state.range(0));
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std::random_device rd { };
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std::mt19937 gen { rd() };
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std::uniform_real_distribution<float> dist { 1, 2 };
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for (auto _ : state) {
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fill<float, true>(absl::MakeSpan(buffer).subspan(1), dist(gen));
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}
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}
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BENCHMARK(Dummy)->Range((2<<6), (2<<16));
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BENCHMARK(FillScalar)->Range((2<<6), (2<<16));
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BENCHMARK(FillSIMD)->Range((2<<6), (2<<16));
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BENCHMARK(FillScalar_unaligned)->Range((2<<6), (2<<16));
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BENCHMARK(FillSIMD_unaligned)->Range((2<<6), (2<<16));
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BENCHMARK_MAIN(); |