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/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include <array>
#include <cstdint>
#include <limits>
#include <numeric>
#include <random>
#include <string>
#include <vector>
#include <benchmark/benchmark.h>
#include "mongo/base/string_data.h"
#include "mongo/platform/endian.h"
namespace mongo {
namespace {
template <typename T>
void BM_NativeToBig(benchmark::State& state) {
std::uint64_t items = 0;
std::vector<T> in(1000);
std::iota(in.begin(), in.end(), 0);
for (auto _ : state) {
for (auto& i : in)
benchmark::DoNotOptimize(endian::nativeToBig(i));
items += in.size();
}
state.SetItemsProcessed(items);
}
template <typename T>
void BM_NativeToLittle(benchmark::State& state) {
std::uint64_t items = 0;
std::vector<T> in(1000);
std::iota(in.begin(), in.end(), 0);
for (auto _ : state) {
for (auto& i : in)
benchmark::DoNotOptimize(endian::nativeToLittle(i));
items += in.size();
}
state.SetItemsProcessed(items);
}
BENCHMARK_TEMPLATE(BM_NativeToBig, uint16_t);
BENCHMARK_TEMPLATE(BM_NativeToBig, uint32_t);
BENCHMARK_TEMPLATE(BM_NativeToBig, uint64_t);
BENCHMARK_TEMPLATE(BM_NativeToLittle, uint16_t);
BENCHMARK_TEMPLATE(BM_NativeToLittle, uint32_t);
BENCHMARK_TEMPLATE(BM_NativeToLittle, uint64_t);
} // namespace
} // namespace mongo
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