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Message-Id: <20071003051438.e1371e99.pj@sgi.com>
Date: Wed, 3 Oct 2007 05:14:38 -0700
From: Paul Jackson <pj@....com>
To: Nick Piggin <nickpiggin@...oo.com.au>
Cc: akpm@...ux-foundation.org, menage@...gle.com,
linux-kernel@...r.kernel.org, dino@...ibm.com, cpw@....com,
mingo@...e.hu
Subject: Re: [PATCH] cpuset and sched domains: sched_load_balance flag
> These are what I'm worried about, and things like kswapd, pdflush,
> could definitely use a huge amount of CPU.
>
> If you are interested in hard partitioning the system, you most
> definitely want these things to be balanced across the non-isolated
> CPUs.
But these guys are pinned anyway (or else they would already be moved
into a smaller load balanced cpuset), so why waste time load balancing
what can't move?
And on some of the systems I care about, we don't want to load balance
these guys; rather we go to great lengths to see that they don't run at
all when we don't want them to.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@....com> 1.925.600.0401
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