Log4J2 is. I recently stumbled across this link http://logging.apache.org/log4j/2.x/manual/async.html where they claim spectacular results. In particular, Log4J2's AsyncLogger blows away Logback's AsyncAppender. It looks like several people have done their own experiments to have Logback use Disruptors for aynchronous logging. For example: https://github.com/reactor/reactor/tree/master/reactor-logback And this guy posted his results on Logback's user email list: http://mailman.qos.ch/pipermail/logback-user/2013-August/004201.html I would like to know if there are any official plans to incorporate LMAX's Disruptor (or some equivalent) technology in Logback. I searched this list, and could find no discussion. From my perspective, this is critical: fast asynchronous logging is of extreme importance for my current employer, and I bet many other people too.