// // Copyright(c) 2015 Gabi Melman. // Distributed under the MIT License (http://opensource.org/licenses/MIT) // #include <chrono> #include <iostream> #include <boost/log/core.hpp> #include <boost/log/expressions.hpp> #include <boost/log/sinks/text_file_backend.hpp> #include <boost/log/sources/record_ostream.hpp> #include <boost/log/sources/severity_logger.hpp> #include <boost/log/trivial.hpp> #include <boost/log/utility/setup/common_attributes.hpp> #include <boost/log/utility/setup/file.hpp> namespace logging = boost::log; namespace src = boost::log::sources; namespace sinks = boost::log::sinks; namespace keywords = boost::log::keywords; void init() { logging::add_file_log(keywords::file_name = "logs/boost-bench_%N.log", /*< file name pattern >*/ keywords::auto_flush = false, keywords::format = "[%TimeStamp%]: %Message%"); logging::core::get()->set_filter(logging::trivial::severity >= logging::trivial::info); } int main(int, char *[]) { using namespace std::chrono; using clock = steady_clock; int howmany = 1000000; init(); logging::add_common_attributes(); using namespace logging::trivial; src::severity_logger_mt<severity_level> lg; auto start = clock::now(); for (int i = 0; i < howmany; ++i) BOOST_LOG_SEV(lg, info) << "boost message #" << i << ": This is some text for your pleasure"; duration<float> delta = clock::now() - start; float deltaf = delta.count(); auto rate = howmany / deltaf; std::cout << "Total: " << howmany << std::endl; std::cout << "Delta = " << deltaf << " seconds" << std::endl; std::cout << "Rate = " << rate << "/sec" << std::endl; return 0; }