Date: Fri, 2 Apr 2004 14:38:24 +0200
From: Jens Axboe <axboe@suse.de>
To: Marc-Christian Petersen <m.c.p@wolk-project.de>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: 2.6.5-rc3-mm2
Message-ID: <20040402123823.GD4304@suse.de>
References: <20040331014351.1ec6f861.akpm@osdl.org> <200403311937.41510@WOLK> <20040402122759.GC4304@suse.de> <200404021432.49440@WOLK>
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On Fri, Apr 02 2004, Marc-Christian Petersen wrote:
> On Friday 02 April 2004 14:27, Jens Axboe wrote:
> 
> Hi Jens,
> 
> > > is there any reason why I see /sys/block/hda/queue/iosched/ beeing empty?
> > > I thought every I/O scheduler would put in there some tunables or at
> > > least some info's what defaults are used. Or did I miss something
> > > completely and now I am totally wrong?
> 
> > This branch of CFQ doesn't implement the parameters as sysfs modifyable,
> > later versions do.
> 
> Do you have any later versions of cfq? I had cfq-4 with ioprios in my
> tree but that version I have has fatal performance problems compared
> to the cfq-4 in -mm.

Nope, not finalized. I have one that will take a day of work to complete
or so that is pretty much the final design of CFQ I think (before taking
io priorities and making them general).

-- 
Jens Axboe

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