Sophiar2/benchmark/core/small_obj.cpp

#include "core/small_obj.hpp"

#include <benchmark/benchmark.h>

#include <memory>

template<size_t length>
static void BM_std_shared_ptr(benchmark::State &state) {
    struct test_type {
        double data[length];
    };
    for (auto _: state) {
        benchmark::DoNotOptimize(std::make_shared<test_type>());
    }
}

BENCHMARK(BM_std_shared_ptr<0>);
BENCHMARK(BM_std_shared_ptr<1>);
BENCHMARK(BM_std_shared_ptr<8>);
BENCHMARK(BM_std_shared_ptr<16>);
BENCHMARK(BM_std_shared_ptr<128>);

template<size_t length>
static void BM_small_obj(benchmark::State &state) {
    struct test_type : public sophiar::small_obj<test_type> {
        double data[length];
    };
    for (auto _: state) {
        benchmark::DoNotOptimize(test_type::new_instance());
    }
}

BENCHMARK(BM_small_obj<0>);
BENCHMARK(BM_small_obj<1>);
BENCHMARK(BM_small_obj<8>);
BENCHMARK(BM_small_obj<16>);
BENCHMARK(BM_small_obj<128>);

BENCHMARK_MAIN();