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Message-ID: <464CB2B3.50506@s5r6.in-berlin.de>
Date: Thu, 17 May 2007 21:53:23 +0200
From: Stefan Richter <stefanr@...6.in-berlin.de>
To: lkml@...vishd.net
CC: linux-kernel@...r.kernel.org
Subject: Re: usb-storage nice value
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/
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