From: Paul Jackson <pj@sgi.com>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: akpm@linux-foundation.org, menage@google.com,
linux-kernel@vger.kernel.org, dino@in.ibm.com, cpw@sgi.com,
mingo@elte.hu
Subject: Re: [PATCH] cpuset and sched domains: sched_load_balance flag
Date: Wed, 3 Oct 2007 05:14:38 -0700 [thread overview]
Message-ID: <20071003051438.e1371e99.pj@sgi.com> (raw)
In-Reply-To: <200710030525.29735.nickpiggin@yahoo.com.au>
> 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@sgi.com> 1.925.600.0401
next prev parent reply other threads:[~2007-10-03 12:14 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-30 10:44 [PATCH] cpuset and sched domains: sched_load_balance flag Paul Jackson
2007-09-29 19:21 ` Nick Piggin
2007-09-30 18:07 ` Paul Jackson
2007-09-30 3:34 ` Nick Piggin
2007-10-01 3:42 ` Paul Jackson
2007-10-02 13:05 ` Nick Piggin
2007-10-03 6:58 ` Paul Jackson
2007-10-02 16:09 ` Nick Piggin
2007-10-03 9:55 ` Paul Jackson
2007-10-02 17:56 ` Nick Piggin
2007-10-03 11:38 ` Paul Jackson
2007-10-02 19:25 ` Nick Piggin
2007-10-03 12:14 ` Paul Jackson [this message]
2007-10-02 19:53 ` Nick Piggin
2007-10-03 12:41 ` Paul Jackson
2007-10-02 20:30 ` Nick Piggin
2007-10-03 17:46 ` Paul Jackson
2007-10-03 12:17 ` Paul Jackson
2007-10-02 20:31 ` Nick Piggin
2007-10-03 17:44 ` Paul Jackson
2007-10-01 18:15 ` Paul Jackson
2007-10-02 13:35 ` Nick Piggin
2007-10-03 6:22 ` [patch] sched: fix sched-domains partitioning by cpusets Ingo Molnar
2007-10-03 6:56 ` Paul Jackson
2007-10-02 15:46 ` Nick Piggin
2007-10-03 9:21 ` Paul Jackson
2007-10-02 17:23 ` Nick Piggin
2007-10-03 10:08 ` Paul Jackson
2007-10-03 9:35 ` Ingo Molnar
2007-10-03 9:39 ` Paul Jackson
2007-10-02 17:29 ` Nick Piggin
2007-10-03 7:20 ` Ingo Molnar
2007-10-03 7:25 ` [PATCH] cpuset and sched domains: sched_load_balance flag Paul Jackson
2007-10-02 16:14 ` Nick Piggin
2007-09-30 10:44 ` [PATCH] cpuset decrustify update and validate masks Paul Jackson
2007-09-30 17:33 ` [PATCH] cpuset and sched domains: sched_load_balance flag Ingo Molnar
2007-10-02 20:22 ` Randy Dunlap
2007-10-02 20:57 ` Paul Jackson
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