linux-kernel - Re: [RFC/RFT PATCH] sched: automated per tty task groups

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Message-Id: <1287650399.9021.33.camel@marge.simson.net>
Date:	Thu, 21 Oct 2010 10:39:58 +0200
From:	Mike Galbraith <efault@....de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>
Subject: Re: [RFC/RFT PATCH] sched: automated per tty task groups

On Thu, 2010-10-21 at 10:31 +0200, Ingo Molnar wrote:

> Btw., how does Xorg fare with this? Can we remove sleeper fairness for example and 
> simplify other bits of the CFS logic as a side-effect?

Works a treat for me.  As I write this in evolution, I have amarok
playing with a visualization and a make -j100 running.  Song switch is
instant, visualization is nice and smooth despite unaccelerated Xorg.

We can't whack fair sleepers though, not without inventing a new
preemption model to take it's place.

	-Mike

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