linux-kernel - Re: [PATCH 1/2] Customize sched domain via cpuset

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Message-ID: <87zlsdzttp.fsf@basil.nowhere.org>
Date:	01 Apr 2008 13:40:50 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] Customize sched domain via cpuset

Hidetoshi Seto <seto.hidetoshi@...fujitsu.com> writes:

> Using cpuset, now we can partition the system into multiple sched domains.
> Then, how about providing different characteristics for each domains?

Did you actually see much improvement in any relevant workload
from tweaking these parameters?  If yes what did you change?
And how much did it gain?

Ideally the kernel should perform well without much tweaking
out of the box, simply because most users won't tweak. Adding a 
lot of such parameters would imply giving up on good defaults which 
is not a good thing.

-Andi
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