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/**
* Copyright (C) 2018-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/logv2/component_settings_filter.h"
#include "mongo/logv2/log.h"
#include "mongo/logv2/log_domain_global.h"
#include "mongo/logv2/text_formatter.h"
#include "mongo/platform/basic.h"
#include <benchmark/benchmark.h>
#include <boost/iostreams/device/null.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/log/sinks/sync_frontend.hpp>
#include <boost/log/sinks/text_ostream_backend.hpp>
#include <boost/make_shared.hpp>
#include <iostream>
#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kDefault
namespace mongo {
namespace {
boost::shared_ptr<std::ostream> makeNullStream() {
namespace bios = boost::iostreams;
return boost::make_shared<bios::stream<bios::null_sink>>(bios::null_sink{});
}
// RAII style helper class for init/deinit new log system
class ScopedLogV2Bench {
public:
ScopedLogV2Bench(benchmark::State& state) {
_shouldInit = state.thread_index == 0;
if (_shouldInit) {
setupAppender();
}
}
~ScopedLogV2Bench() {
if (_shouldInit) {
tearDownAppender();
}
}
private:
void setupAppender() {
logv2::LogDomainGlobal::ConfigurationOptions config;
config.makeDisabled();
invariant(logv2::LogManager::global().getGlobalDomainInternal().configure(config).isOK());
auto backend = boost::make_shared<boost::log::sinks::text_ostream_backend>();
backend->add_stream(makeNullStream());
backend->auto_flush(true);
_sink = boost::make_shared<
boost::log::sinks::synchronous_sink<boost::log::sinks::text_ostream_backend>>(backend);
_sink->set_filter(
logv2::ComponentSettingsFilter(logv2::LogManager::global().getGlobalDomain(),
logv2::LogManager::global().getGlobalSettings()));
_sink->set_formatter(logv2::TextFormatter());
boost::log::core::get()->add_sink(_sink);
}
void tearDownAppender() {
boost::log::core::get()->remove_sink(_sink);
invariant(logv2::LogManager::global().getGlobalDomainInternal().configure({}).isOK());
}
boost::shared_ptr<boost::log::sinks::synchronous_sink<boost::log::sinks::text_ostream_backend>>
_sink;
bool _shouldInit;
};
// "Expensive" way to create a string.
std::string createLongString() {
return std::string(1000, 'a') + std::string(1000, 'b') + std::string(1000, 'c') +
std::string(1000, 'd') + std::string(1000, 'e');
}
void BM_NoopLogV2(benchmark::State& state) {
ScopedLogV2Bench init(state);
for (auto _ : state)
LOGV2_DEBUG(20074, 1, "noop log");
}
void BM_NoopLogV2Arg(benchmark::State& state) {
ScopedLogV2Bench init(state);
for (auto _ : state)
LOGV2_DEBUG(20075, 1, "noop log {}", "str"_attr = createLongString());
}
void BM_EnabledLogV2(benchmark::State& state) {
ScopedLogV2Bench init(state);
for (auto _ : state)
LOGV2(20071, "enabled log");
}
void BM_EnabledLogV2ExpensiveArg(benchmark::State& state) {
ScopedLogV2Bench init(state);
for (auto _ : state)
LOGV2(20072, "enabled log {}", "str"_attr = createLongString());
}
void BM_EnabledLogV2ManySmallArg(benchmark::State& state) {
ScopedLogV2Bench init(state);
for (auto _ : state) {
LOGV2(20073,
"enabled log {}{}{}{}{}{}{}{}{}{}",
"1"_attr = 1,
"2"_attr = 2,
"3"_attr = "3",
"4"_attr = 4.0,
"5"_attr = "5",
"6"_attr = "6"_sd,
"7"_attr = 7,
"8"_attr = 8,
"9"_attr = "9",
"10"_attr = "10"_sd);
}
}
void ThreadCounts(benchmark::internal::Benchmark* b) {
int tc[] = {1, 2, 4, 8};
for (int t : tc)
b->Threads(t);
}
BENCHMARK(BM_NoopLogV2)->Apply(ThreadCounts);
BENCHMARK(BM_NoopLogV2Arg)->Apply(ThreadCounts);
BENCHMARK(BM_EnabledLogV2)->Apply(ThreadCounts);
BENCHMARK(BM_EnabledLogV2ExpensiveArg)->Apply(ThreadCounts);
BENCHMARK(BM_EnabledLogV2ManySmallArg)->Apply(ThreadCounts);
} // namespace
} // namespace mongo
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