From: Con Kolivas <kernel@kolivas.org>
To: linux-kernel@vger.kernel.org
Subject: Re: unknown io writes in 2.6.16
Date: Tue, 16 May 2006 11:21:50 +1000
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Cc: Mark Hedges <hedges@ucsd.edu>, dean gaudet <dean@arctic.org>
References: <20060510135100.F26270@network.ucsd.edu> <Pine.LNX.4.64.0605121012230.7292@twinlark.arctic.org> <20060515170943.P3338@network.ucsd.edu>
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On Tuesday 16 May 2006 10:12, Mark Hedges wrote:
> Cool, thanks, I'll check this out.  It's actually about 12k
> every 5 seconds, not 12 bytes. Seems excessive for atime
> updates.

That just sounds like the journal updating... the default journal time is 5 
seconds. Try transiently disabling the journal to see if that's it:

mount -o remount,noload /mountpoint

Don't forget to re-enable it afterwards.

You could set laptop mode if the writeouts are too frequent for your liking:

echo 1 > /proc/sys/vm/laptop_mode

-- 
-ck
-
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