linux-kernel - Re: scheduler nice 19 versus 'idle' behavior / static low-priority scheduling

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Message-Id: <1233311516.6280.4.camel@marge.simson.net>
Date:	Fri, 30 Jan 2009 11:31:56 +0100
From:	Mike Galbraith <efault@....de>
To:	Nathanael Hoyle <nhoyle@...letech.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: scheduler nice 19 versus 'idle' behavior / static low-priority
	scheduling

On Fri, 2009-01-30 at 05:18 -0500, Nathanael Hoyle wrote:

> Ok, I'm now running:
> 
> Linux nightmare 2.6.28.2-nhoyle #1 SMP Fri Jan 30 04:50:03 EST 2009
> x86_64 Intel(R) Core(TM)2 Quad CPU Q9450 @ 2.66GHz GenuineIntel
> GNU/Linux
> 
> Initial conclusion is that whatever defects were corrected (non
> SCHED_IDLE specific defects that is), the newer kernel version does the
> trick.  Video playback is as smooth as ever when running foldingathome
> at simple nice 19 priority.

Good to hear, thanks for testing.

Peter, since 27 is a long term maintenance kernel, do you think 1af5f73
and 046e7f7 (at least) are 27.stable candidates?

	-Mike



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