linux-kernel - Re: Disk schedulers

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Message-ID: <20080215100921.GB5347@ics.muni.cz>
Date:	Fri, 15 Feb 2008 11:09:21 +0100
From:	Lukas Hejtmanek <xhejtman@....muni.cz>
To:	Tejun Heo <htejun@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Disk schedulers

On Fri, Feb 15, 2008 at 09:02:31AM +0900, Tejun Heo wrote:
> > till the scp finishes. It is not caused by low free memory, while scping
> > I have 500MB of free memory (not cached or buffered).
> > 
> > I tried cfq and anticipatory scheduler, none is different.
> > 
> 
> Does deadline help?

well, deadline is a little bit better. I'm trying to read from disk opening
maildir with 20000 mails with mutt. If I open that maildir, mutt shows
progress. With cfq or anticipatory scheduler, progress is 0/20000 until scp
finishes. With deadline, progress is 150/20000 after scp finished. So I would
say, it is better but I doubt it is OK.

-- 
Lukáš Hejtmánek
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