import std.experimental.logger.asynclogger;
import core.sys.posix.syslog;
void main()
{
    import std.algorithm;
    import std.conv;
    import std.stdio;
    import std.datetime;
    import std.experimental.logger;

    auto fl = new FileLogger("fileLogger.log");
    void logFileDefault()
    {
        fl.log("test");
    }

    auto afl = new AsyncLogger(new FileLogger("asyncFileLogger.log", LogLevel.all));
    void logFileAsync()
    {
        afl.log("test");
    }

    openlog("test", LOG_PID | LOG_NDELAY, LOG_USER);
    void logSyslog()
    {
        syslog(LOG_INFO, "test");
    }

    auto r = benchmark!(logFileDefault, logFileAsync, logSyslog)(1000_00);
    writeln(map!(a => to!string(to!Duration(a)))(r[]));
}