https://bz.apache.org/bugzilla/show_bug.cgi?id=56966
--- Comment #6 from Mark Thomas <ma...@apache.org> --- System.nanoTime() is approximately 40x slower than System.currentTimeMillis(). On my machine the equates to the difference between ~600ns and ~15ns per call. Duration requires a start and an end time. So that is ~1.2μs. On the same machine a basic request with access logging takes ~30μs so switching to ns precision adds approximately 4% of overhead. That is a fair amount overhead. It is worth checking the timings on a more modern machine (I'll do that shortly) before making any decisions on this. -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org