linux-kernel - Re: Poor desktop responsiveness with background I/O-operations

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Message-ID: <4AB5ECD0.7010903@datenparkplatz.de>
Date:	Sun, 20 Sep 2009 10:50:24 +0200
From:	Ulrich Lukas <stellplatz-nr.13a@...enparkplatz.de>
To:	unlisted-recipients:; (no To-header on input)
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Poor desktop responsiveness with background I/O-operations

Arjan van de Ven wrote:
> can you try the following two things?
> 
> echo 4096 > /sys/block/sda/queue/nr_requests
> for i in `pidof kjournald` ; do ionice -c1 -p $i ; done

I tried this just now, but it doesn't change things much. I can do a
more testing later today.


> I assume you're using CFQ.

Yes, it's CFQ. (see .config of my previous posting)

Filesystem is EXT4.
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