linux-kernel - Re: BFS vs. mainline scheduler benchmarks and measurements

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Message-Id: <1252598709.7360.0.camel@twins>
Date:	Thu, 10 Sep 2009 18:05:09 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Bret Towe <magnade@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Nikos Chantziaras <realnc@...or.de>,
	Jens Axboe <jens.axboe@...cle.com>,
	Mike Galbraith <efault@....de>,
	Con Kolivas <kernel@...ivas.org>, linux-kernel@...r.kernel.org
Subject: Re: BFS vs. mainline scheduler benchmarks and measurements

On Thu, 2009-09-10 at 09:02 -0700, Bret Towe wrote:
> 
> thanks to this thread and others I've seen several kernel tunables
> that can effect how the scheduler performs/acts
> but what I don't see after a bit of looking is where all these are
> documented
> perhaps thats also part of the reason there are unhappy people with
> the current code in the kernel just because they don't know how
> to tune it for their workload

The thing is, ideally they should not need to poke at these. These knobs
are under CONFIG_SCHED_DEBUG, and that is exactly what they are for.

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