linux-kernel - Re: Sched_autogroup and niced processes

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Message-ID: <1305295583.27263.36.camel@marge.simson.net>
Date:	Fri, 13 May 2011 16:06:23 +0200
From:	Mike Galbraith <efault@....de>
To:	Carl-Johan Kjellander <carl-johan@...rna.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Yong Zhang <yong.zhang0@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Sched_autogroup and niced processes

On Fri, 2011-05-13 at 15:36 +0200, Carl-Johan Kjellander wrote:

> I can try the same thing at home on my Q6600 machine if I upgrade it,
> cause of course the Core i7 doesn't actually have 8 cores, they are
> just hyperthreaded. It might be a factor.
> 
> Or am doing something horribly wrong when I try to set the autogroup to 19?

You seemingly haven't niced the parent's group, else new clients would
behave themselves.

cat /proc/pid/NN/autogroup will show nice level for group of pid NN.

(Watch out you don't nice down something like kdeinit;)

	-Mike

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