linux-kernel - Re: [PATCH v4] sched: automated per session task groups

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Message-Id: <1291009528.9082.8.camel@marge.simson.net>
Date:	Mon, 29 Nov 2010 06:45:28 +0100
From:	Mike Galbraith <efault@....de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] sched: automated per session task groups

On Sun, 2010-11-28 at 11:31 -0800, Linus Torvalds wrote:
> On Sun, Nov 28, 2010 at 6:24 AM, Mike Galbraith <efault@....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:

No Nouveau here, plain old boring nv.

>    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)

I'll hunt as soon as I can (inbox runneth over).

	-Mike

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