On 02/14/2014 03:37 PM, Sergey Kuksenko wrote: > I think it looks a little bit crazy, but annotations with "hours" > fail. like @Warmup(time =3, timeUnit = TimeUnit.HOURS) Yeah, that's because we miss the case in TimeValue.fromString(). Fixed: http://hg.openjdk.java.net/code-tools/jmh/rev/827d48b75dd5 -Aleksey.