On Sat, 2007-07-14 at 13:19 -0400, Ed Tomlinson wrote: > Hi, Hi Ed,
> I run a java application at nice 15. Its been a background application here > for as long > as SD and CFS have been around. If I have a compile running at nice 0, with > v19 java > gets so little cpu that the the wrapper that runs to monitor it is timing out > waiting for > it to start. This is new in v19 - something in v19 is not meshing well with > my mix > of applications... > > Kernel is gentoo 2.6.22-r1 + cfs v19 > > How can I help to debug this? I hear Ingo is off having a genuine long weekend, but in the meantime, you could try echo 30 > /proc/sys/kernel/sched_features to eliminate the sleeper fairness changes in v19, since that was the biggest change. Sending a few seconds of logged /proc/sched_debug will also help get a picture of what's happening, and lovely would be a method to reproduce the problem locally. -Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/