linux-kernel - Re: [RFC] cpuset: remove sched domain hooks from cpusets

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Message-Id: <20061022225456.6adfd0be.pj@sgi.com>
Date:	Sun, 22 Oct 2006 22:54:56 -0700
From:	Paul Jackson <pj@....com>
To:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>
Cc:	mbligh@...gle.com, nickpiggin@...oo.com.au, akpm@...l.org,
	menage@...gle.com, Simon.Derr@...l.net,
	linux-kernel@...r.kernel.org, dino@...ibm.com,
	rohitseth@...gle.com, holt@....com, dipankar@...ibm.com,
	clameter@....com
Subject: Re: [RFC] cpuset: remove sched domain hooks from cpusets

Suresh wrote:
> group of pinned tasks can completely skew the system load balancing..

Ah - yes.  That was a problem.  If the load balancer couldn't offload
tasks from one or two of the most loaded CPUs (perhaps because they
were pinned.) it tended to give up.

I believe that Christoph is actively working that problem.  Adding him
to the cc list, so he can explain the state of this work more
accurately.

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