From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: lkml@dervishd.net
Cc: linux-kernel@vger.kernel.org
Subject: Re: usb-storage nice value
Date: Thu, 17 May 2007 21:53:23 +0200 [thread overview]
Message-ID: <464CB2B3.50506@s5r6.in-berlin.de> (raw)
In-Reply-To: <20070517100308.GA14667@DervishD>
DervishD wrote:
> I'm having problems when reading/writing to external USB harddisks:
> my *internal* harddisk stalls from time to time, so watching a movie
> while copying data is a PITA (well, if the movie is bad, the leaps help
> a bit...).
If the internal harddisk is source or target of these copy operations...
...
> is there any way of modifying the pdflush behaviour so
> large buffered writes are less "agressive" and doesn't block apps which
> are just reading?
...then switching to another IO scheduler might perhaps help.
# cat /sys/block/hda/queue/scheduler
# echo deadline > /sys/block/hda/queue/scheduler
--
Stefan Richter
-=====-=-=== -=-= =---=
http://arcgraph.de/sr/
next prev parent reply other threads:[~2007-05-17 19:53 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-17 10:03 DervishD
2007-05-17 10:19 ` Alan Cox
2007-05-17 10:34 ` DervishD
2007-05-17 19:53 ` Stefan Richter [this message]
2007-05-18 6:15 ` DervishD
2007-05-18 6:33 ` Jan Engelhardt
2007-05-18 8:21 ` DervishD
2007-05-18 8:49 ` Jan Engelhardt
2007-05-18 11:13 ` DervishD
2007-05-18 9:46 ` Heikki Orsila
2007-05-18 11:12 ` DervishD
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