37 lines
704 B
C++
37 lines
704 B
C++
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#include <celero/Celero.h>
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#include <alsk/alsk.h>
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constexpr unsigned samples = 20;
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constexpr unsigned iterations = 500;
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constexpr unsigned count = 1'000'000;
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namespace {
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unsigned r;
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void *f(void * = nullptr) {
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r = 0;
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for(unsigned volatile i = 0; i < count; ++i) r += r;
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return &r;
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}
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}
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BASELINE(Thread, None, samples, iterations) {
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celero::DoNotOptimizeAway(f());
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}
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BENCHMARK(Thread, cthread, samples, iterations) {
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void *r;
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pthread_t thread;
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pthread_create(&thread, NULL, f, NULL);
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pthread_join(thread, &r);
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celero::DoNotOptimizeAway(r);
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}
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BENCHMARK(Thread, stdthread, samples, iterations) {
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std::thread thread{f, nullptr};
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thread.join();
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celero::DoNotOptimizeAway(thread);
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}
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