linux-kernel - Re: [RFC] cpuset: add interface to isolated cpus

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Date:	Fri, 20 Oct 2006 13:01:41 -0700
From:	Paul Jackson <pj@....com>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	akpm@...l.org, mbligh@...gle.com, menage@...gle.com,
	Simon.Derr@...l.net, linux-kernel@...r.kernel.org, dino@...ibm.com,
	rohitseth@...gle.com, holt@....com, dipankar@...ibm.com,
	suresh.b.siddha@...el.com, clameter@....com
Subject: Re: [RFC] cpuset: add interface to isolated cpus

Nick wrote:
> Or, another question, how does my patch hijack cpus_allowed? In
> what way does it change the semantics of cpus_allowed?

It limits load balancing for tasks in cpusets containing
a superset of that cpusets cpus.

There are always such cpusets - the top cpuset if no other.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.925.600.0401
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