Messages in this thread | | | Subject | Re: [PATCH v4] sched: automated per session task groups | From | Peter Zijlstra <> | Date | Mon, 29 Nov 2010 12:53:13 +0100 |
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On Sun, 2010-11-28 at 21:18 +0100, Ingo Molnar wrote: > * Linus Torvalds <torvalds@linux-foundation.org> wrote: > > > On Sun, Nov 28, 2010 at 6:24 AM, Mike Galbraith <efault@gmx.de> wrote: > > > > > > Something else is seriously wrong though. 36.1 with attached (plus > > > sched, cgroup: Fixup broken cgroup movement) works a treat, whereas > > > 37.git and tip with fixlet below both suck rocks. With a make -j40 > > > running, wakeup-latency is showing latencies of >100ms, amarok skips, > > > mouse lurches badly.. generally horrid. Something went south. > > > > Can you test -rc3? Is that still ok? And are you perhaps using > > Nouveau? There's a report of some graphics (?) regression since -rc3 > > about bad desktop performance: > > > > https://bugzilla.kernel.org/show_bug.cgi?id=23912 > > > > but it doesn't have any more information yet (so if -rc3 _is_ good for > > you, and you can add anything to that report, it would be good. The > > original reporter is hopefully bisecting it now) > > Mike, the last pure -rc3 -tip commit is 92c883adf03b - you could try to check that > out too: it has most of the current sched/core commits, but has none of the post-rc3 > DRM changes.
Well we totally re-wrote the cgroup load-balancer in -tip. The thing currently in -linus is a utter crap because its very strongly serialized across all cores (some people spend like 25% of their time in there).
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