91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
#pragma once
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#include <chrono>
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#include <cmath>
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#include <string>
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#include <vector>
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#include <benchmark/benchmark.h>
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void init_x(std::vector<float> &x) {
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for (size_t i = 0; i < x.size(); ++i) {
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x[i] = (i % 360) * 0.0174533f; // degrees to radians
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}
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}
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template <typename Backend>
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static void benchmark_sinf(benchmark::State &state) {
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const size_t N = static_cast<size_t>(state.range(0));
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std::vector<float> x(N), s(N);
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init_x(x);
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Backend backend;
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auto start = std::chrono::high_resolution_clock::now();
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backend.init(N);
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auto end = std::chrono::high_resolution_clock::now();
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state.counters["init_ms"] =
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std::chrono::duration_cast<std::chrono::microseconds>(end - start)
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.count() /
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1.e3;
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for (auto _ : state) {
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backend.compute_sinf(N, x.data(), s.data());
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benchmark::DoNotOptimize(s);
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}
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state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) *
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static_cast<int64_t>(N));
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}
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template <typename Backend>
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static void benchmark_cosf(benchmark::State &state) {
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const size_t N = static_cast<size_t>(state.range(0));
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std::vector<float> x(N), c(N);
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init_x(x);
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Backend backend;
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auto start = std::chrono::high_resolution_clock::now();
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backend.init(N);
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auto end = std::chrono::high_resolution_clock::now();
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state.counters["init_ms"] =
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std::chrono::duration_cast<std::chrono::microseconds>(end - start)
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.count() /
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1.e3;
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for (auto _ : state) {
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backend.compute_cosf(N, x.data(), c.data());
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benchmark::DoNotOptimize(c);
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}
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state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) *
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static_cast<int64_t>(N));
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}
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template <typename Backend>
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static void benchmark_sincosf(benchmark::State &state) {
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const size_t N = static_cast<size_t>(state.range(0));
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std::vector<float> x(N), s(N), c(N);
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init_x(x);
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Backend backend;
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auto start = std::chrono::high_resolution_clock::now();
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backend.init(N);
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auto end = std::chrono::high_resolution_clock::now();
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state.counters["init_ms"] =
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std::chrono::duration_cast<std::chrono::microseconds>(end - start)
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.count() /
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1.e3;
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for (auto _ : state) {
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backend.compute_sincosf(N, x.data(), s.data(), c.data());
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benchmark::DoNotOptimize(s);
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benchmark::DoNotOptimize(c);
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}
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state.SetItemsProcessed(static_cast<int64_t>(state.iterations()) *
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static_cast<int64_t>(N));
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}
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