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/*
* Copyright Andrey Semashev 2007 - 2014.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/*!
* \file record_emission.cpp
* \author Andrey Semashev
* \date 22.03.2009
*
* \brief This code measures performance of log record emission
*/
// #define BOOST_LOG_USE_CHAR
// #define BOOST_ALL_DYN_LINK 1
// #define BOOST_LOG_DYN_LINK 1
#define BOOST_NO_DYN_LINK 1
#include <iomanip>
#include <iostream>
#include <boost/ref.hpp>
#include <boost/bind.hpp>
#include <boost/smart_ptr/shared_ptr.hpp>
#include <boost/smart_ptr/make_shared_object.hpp>
#include <boost/date_time/microsec_time_clock.hpp>
#include <boost/date_time/posix_time/posix_time_types.hpp>
#include <boost/thread/thread.hpp>
#include <boost/thread/barrier.hpp>
#include <boost/log/core.hpp>
#include <boost/log/common.hpp>
#include <boost/log/attributes.hpp>
#include <boost/log/sinks.hpp>
#include <boost/log/sinks/basic_sink_backend.hpp>
#include <boost/log/expressions.hpp>
#include <boost/log/attributes/scoped_attribute.hpp>
enum config
{
RECORD_COUNT = 50000000,
THREAD_COUNT = 3,
SINK_COUNT = 3
};
namespace logging = boost::log;
namespace expr = boost::log::expressions;
namespace sinks = boost::log::sinks;
namespace attrs = boost::log::attributes;
namespace src = boost::log::sources;
namespace keywords = boost::log::keywords;
enum severity_level
{
normal,
warning,
error
};
BOOST_LOG_ATTRIBUTE_KEYWORD(severity, "Severity", severity_level)
namespace {
//! A fake sink backend that receives log records
class fake_backend :
public sinks::basic_sink_backend< sinks::concurrent_feeding >
{
public:
void consume(logging::record_view const& rec)
{
}
};
} // namespace
void test(unsigned int record_count, boost::barrier& bar)
{
BOOST_LOG_SCOPED_THREAD_TAG("ThreadID", boost::this_thread::get_id());
bar.wait();
src::severity_logger< severity_level > slg;
for (unsigned int i = 0; i < record_count; ++i)
{
BOOST_LOG_SEV(slg, warning) << "Test record";
}
}
int main(int argc, char* argv[])
{
std::cout << "Test config: " << THREAD_COUNT << " threads, " << SINK_COUNT << " sinks, " << RECORD_COUNT << " records" << std::endl;
//__debugbreak();
// typedef sinks::unlocked_sink< fake_backend > fake_sink;
// typedef sinks::synchronous_sink< fake_backend > fake_sink;
typedef sinks::asynchronous_sink< fake_backend > fake_sink;
for (unsigned int i = 0; i < SINK_COUNT; ++i)
logging::core::get()->add_sink(boost::make_shared< fake_sink >());
logging::core::get()->add_global_attribute("LineID", attrs::counter< unsigned int >(1));
logging::core::get()->add_global_attribute("TimeStamp", attrs::local_clock());
logging::core::get()->add_global_attribute("Scope", attrs::named_scope());
// logging::core::get()->set_filter(severity > normal); // all records pass the filter
// logging::core::get()->set_filter(severity > error); // all records don't pass the filter
logging::core::get()->set_filter(severity > error); // all records don't pass the filter
const unsigned int record_count = RECORD_COUNT / THREAD_COUNT;
boost::barrier bar(THREAD_COUNT);
boost::thread_group threads;
for (unsigned int i = 1; i < THREAD_COUNT; ++i)
threads.create_thread(boost::bind(&test, record_count, boost::ref(bar)));
boost::posix_time::ptime start = boost::date_time::microsec_clock< boost::posix_time::ptime >::universal_time(), end;
test(record_count, bar);
if (THREAD_COUNT > 1)
threads.join_all();
end = boost::date_time::microsec_clock< boost::posix_time::ptime >::universal_time();
unsigned long long duration = (end - start).total_microseconds();
std::cout << "Test duration: " << duration << " us ("
<< std::fixed << std::setprecision(3) << static_cast< double >(RECORD_COUNT) / (static_cast< double >(duration) / 1000000.0)
<< " records per second)" << std::endl;
return 0;
}
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