linux-kernel - Re: XFS filesystem performance drop in kernels 2.6.16+

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Date:	Fri, 10 Nov 2006 12:59:59 +0100 (MET)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Eric Sandeen <sandeen@...deen.net>
cc:	"Igor A. Valcov" <viaprog@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>, xfs@....sgi.com
Subject: Re: XFS filesystem performance drop in kernels 2.6.16+

>> I also noticed that I/O barriers were introduced in v2.6.16 and
>> thought they may be the cause, but mounting the file system with
>> 'nobarrier' doesn't seem to affect the performance in any way.
>
>
> did this happen to be a remount with nobarrier, or a fresh mount?

For the barrier stuff, see
http://lkml.org/lkml/2006/5/19/33


	-`J'
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