linux-kernel - Re: [patch] CFS (Completely Fair Scheduler), v2

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Message-ID: <20070417091859.78dc0062@localhost>
Date:	Tue, 17 Apr 2007 09:18:59 +0200
From:	Paolo Ornati <ornati@...twebnet.it>
To:	Gene Heskett <gene.heskett@...il.com>
Cc:	Willy Tarreau <w@....eu>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Con Kolivas <kernel@...ivas.org>,
	Nick Piggin <npiggin@...e.de>, Mike Galbraith <efault@....de>,
	Arjan van de Ven <arjan@...radead.org>,
	Peter Williams <pwil3058@...pond.net.au>,
	Thomas Gleixner <tglx@...utronix.de>, caglar@...dus.org.tr,
	Dmitry Adamushko <dmitry.adamushko@...il.com>
Subject: Re: [patch] CFS (Completely Fair Scheduler), v2

On Tue, 17 Apr 2007 01:51:08 -0400
Gene Heskett <gene.heskett@...il.com> wrote:

> FWIW, I've been using the CFQ I/O scheduler for quite a while, is it time I 
> gave the AS or Deadline versions another check?  They are all built in but I 
> don't know how to change the default on the fly, or even if it can be done.

easy :)

# cat /sys/block/DEVICE/queue/scheduler
as noop [cfq] ...

# echo IO_SCHED > /sys/block/DEVICE/queue/scheduler

-- 
	Paolo Ornati
	Linux 2.6.21-rc7 on x86_64
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