linux-kernel - Re: [PATCH] new cgroup controller "fork"

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Message-ID: <4EB2CEB2.7050800@parallels.com>
Date:	Thu, 3 Nov 2011 15:26:10 -0200
From:	Glauber Costa <glommer@...allels.com>
To:	Max Kellermann <mk@...all.com>
CC:	Frederic Weisbecker <fweisbec@...il.com>,
	Tim Hockin <thockin@...kin.org>,
	<containers@...ts.linux-foundation.org>,
	<linux-kernel@...r.kernel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] new cgroup controller "fork"

On 11/03/2011 03:16 PM, Max Kellermann wrote:
> On 2011/11/03 17:43, Frederic Weisbecker<fweisbec@...il.com>  wrote:
>> Please have a look at the task counter subsystem: https://lwn.net/Articles/461462/
>>
>> It's in the -mm tree. I'm glad to hear about another user who wants
>> this feature in cgroups. We need to hear about you and whether this
>> meets your requirements in order to get it merged upstream.
>
> Had a quick look at your patch set.  No, it does not seem to meet my
> requirements.  It limits the number of processes in a cgroup - that is
> also very useful, but is different from my controller.
>
How so?
If you never move tasks to a cgroup except at setup time - which is the 
common case for almost everybody, I imagine, you end up achieving the 
same thing.
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