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e75aa6b210
* fetching google benchmark with cmake * use new thread-safe accumulator in histogram_parallel_filling * update boost, root and gsl benchmarks to use google benchmark
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// Copyright 2015-2019 Hans Dembinski
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <benchmark/benchmark.h>
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#include <random>
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#include <gsl/gsl_histogram.h>
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#include <gsl/gsl_histogram2d.h>
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using uniform = std::uniform_real_distribution<>;
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using normal = std::normal_distribution<>;
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template <class Distribution>
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Distribution init();
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template <>
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uniform init<uniform>() {
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return uniform{0.0, 1.0};
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}
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template <>
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normal init<normal>() {
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return normal{0.5, 0.3};
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}
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template <class Distribution>
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static void fill_1d(benchmark::State& state) {
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gsl_histogram* h = gsl_histogram_alloc(100);
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gsl_histogram_set_ranges_uniform(h, 0, 1);
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std::default_random_engine gen(1);
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Distribution dis = init<Distribution>();
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for (auto _ : state) gsl_histogram_increment(h, dis(gen));
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gsl_histogram_free(h);
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}
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template <class Distribution>
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static void fill_2d(benchmark::State& state) {
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gsl_histogram2d* h = gsl_histogram2d_alloc(100, 100);
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gsl_histogram2d_set_ranges_uniform(h, 0, 1, 0, 1);
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std::default_random_engine gen(1);
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Distribution dis = init<Distribution>();
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for (auto _ : state) gsl_histogram2d_increment(h, dis(gen), dis(gen));
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gsl_histogram2d_free(h);
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}
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BENCHMARK_TEMPLATE(fill_1d, uniform);
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BENCHMARK_TEMPLATE(fill_2d, uniform);
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BENCHMARK_TEMPLATE(fill_1d, normal);
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BENCHMARK_TEMPLATE(fill_2d, normal);
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