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Gabi Melman 2014-12-07 06:16:15 +02:00
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@ -2,11 +2,9 @@
Very fast, header only, C++ logging library. Very fast, header only, C++ logging library.
## Install ## Install
Just copy the files to your build tree and use a C++11 compiler Just copy the files to your build tree and use a C++11 compiler
## Tested on: ## Tested on:
* gcc 4.8.1 and above * gcc 4.8.1 and above
* clang 3.5 * clang 3.5
@ -38,7 +36,7 @@ Just copy the files to your build tree and use a C++11 compiler
Below are some [benchmarks](bench) comparing the time needed to log 1,000,000 lines to file under Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz (the best of 3 runs for each logger): Below are some [benchmarks](bench) comparing the time needed to log 1,000,000 lines to file under Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz (the best of 3 runs for each logger):
|threads|boost log|glog|g2log|spdlog|spdlog <sup>async mode</sup>| |threads|boost log|glog|g2log<sup>async mode</sup>|spdlog|spdlog <sup>async mode</sup>|
|-------|:-------:|:-----:|------:|------:|------:| |-------|:-------:|:-----:|------:|------:|------:|
|1|4.779s|1.109s|3.155s|0.319s|0.212s |1|4.779s|1.109s|3.155s|0.319s|0.212s
|10|15.151ss|3.546s|3.500s|0.641s|0.199s| |10|15.151ss|3.546s|3.500s|0.641s|0.199s|
@ -51,23 +49,19 @@ Below are some [benchmarks](bench) comparing the time needed to log 1,000,000 li
int main(int, char* []) int main(int, char* [])
{ {
namespace spd = spdlog; namespace spd = spdlog;
try try
{ {
std::string filename = "logs/spdlog_example"; std::string filename = "logs/spdlog_example";
// Set log level to all loggers to DEBUG and above // Set log level to all loggers to DEBUG and above
spd::set_level(spd::level::DEBUG); spd::set_level(spd::level::DEBUG);
//Create console, multithreaded logger //Create console, multithreaded logger
auto console = spd::stdout_logger_mt("console"); auto console = spd::stdout_logger_mt("console");
console->info("Welcome to spdlog!") ; console->info("Welcome to spdlog!") ;
console->info("An info message example {}..", 1); console->info("An info message example {}..", 1);
console->info() << "Streams are supported too " << 1; console->info() << "Streams are supported too " << 1;
console->info("Easy padding in numbers like {:08d}", 12); console->info("Easy padding in numbers like {:08d}", 12);
console->info("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42); console->info("Support for int: {0:d}; hex: {0:x}; oct: {0:o}; bin: {0:b}", 42);
console->info("Support for floats {:03.2f}", 1.23456); console->info("Support for floats {:03.2f}", 1.23456);
@ -81,7 +75,6 @@ int main(int, char* [])
auto file_logger = spd::rotating_logger_mt("file_logger", filename, 1024 * 1024 * 5, 3); auto file_logger = spd::rotating_logger_mt("file_logger", filename, 1024 * 1024 * 5, 3);
file_logger->info("Log file message number", 1); file_logger->info("Log file message number", 1);
spd::set_pattern("*** [%H:%M:%S %z] [thread %t] %v ***"); spd::set_pattern("*** [%H:%M:%S %z] [thread %t] %v ***");
file_logger->info("This is another message with custom format"); file_logger->info("This is another message with custom format");
@ -110,7 +103,6 @@ int main(int, char* [])
{ {
std::cout << "Log failed: " << ex.what() << std::endl; std::cout << "Log failed: " << ex.what() << std::endl;
} }
return 0;
} }
``` ```