linux-kernel - Re: [PATCH v2 14/14] Change CPUACCT to default n

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Date:	Thu, 24 Nov 2011 17:58:19 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Glauber Costa <glommer@...allels.com>
Cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Balbir Singh <bsingharora@...il.com>,
	Paul Turner <pjt@...gle.com>, linux-kernel@...r.kernel.org,
	paul@...lmenage.org, lizf@...fujitsu.com, daniel.lezcano@...e.fr,
	jbottomley@...allels.com, fweisbec@...il.com
Subject: Re: [PATCH v2 14/14] Change CPUACCT to default n

On Thu, 2011-11-24 at 14:38 -0200, Glauber Costa wrote:
> It's hard for me to say that, since I come from a virtualization 
> background: for us, a single cgroup would do just fine: even the 
> division between mem and cpu is not needed. However, I've been learning 
> recently that the use cases for that are quite diverse. So I'll have to 
> leave the answer to Balbir, and other interested parties. 

Hehe, I'm the one running a CGROUP=n kernel, so what do I know. Its just
that all this stuff hurts my brain.

Maybe we should just add functionality that requires controllers to be
co-mounted and this extra functionality will then make people co-mount
since you know features.. :-)

I know I've wanted to do that several times, so far I've always resisted
because it looked like pain, but hey, if I can cause more pain somewhere
else and my life gets easier in the long run I might change my mind ;-)
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