linux-kernel - Re: boot cgroup questions

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Message-Id: <20080312143253.3dd72c7f.pj@sgi.com>
Date:	Wed, 12 Mar 2008 14:32:53 -0500
From:	Paul Jackson <pj@....com>
To:	Max Krasnyanskiy <maxk@...lcomm.com>
Cc:	menage@...gle.com, mingo@...e.hu, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org
Subject: Re: boot cgroup questions

Max wrote:
> I was talking about running on the _cpus_ that belong to the "sets A and B but 
> not C" and not that a task must belong to more than one cpuset.

This doesn't make sense to me.

If a task is to run on the CPUs in both sets A and B, then it has to be
in both those cpusets, which isn't allowed, or in some super set of both
A and B (that is, in this example, in the top cpuset), which doesn't
restrict the task to just A or B or their union.

I have no idea what distinction you are seeing between what _cpus_ a task
can run on, and what cpuset it belongs to.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.940.382.4214
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