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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 28 Nov 2010 11:31:41 -0800
Message-ID: <AANLkTin5Z_WdAPDfcS3V3DCcN40HLDfpzK-o0XeSMiQh@mail.gmail.com>
Subject: Re: [PATCH v4] sched: automated per session task groups
To: Mike Galbraith <efault@gmx.de>
Cc: Ingo Molnar <mingo@elte.hu>, Oleg Nesterov <oleg@redhat.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        LKML <linux-kernel@vger.kernel.org>
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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)

                     Linus
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