From: David Chinner <dgc@sgi.com>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Nathan Scott <nathans@sgi.com>,
linux-xfs@oss.sgi.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: XFS write speed drop
Date: Tue, 23 May 2006 11:26:05 +1000 [thread overview]
Message-ID: <20060523012605.GI5902445@melbourne.sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0605221308290.11108@yvahk01.tjqt.qr>
On Mon, May 22, 2006 at 02:21:48PM +0200, Jan Engelhardt wrote:
> >You're a bit light on details here.
> >
> >Can you send the benchmark results themselves please? (as in,
> >the test(s) you've run that lead you to see 6-8x, and the data
> >those tests produced). Also, xfs_info output, and maybe list
> >the device driver(s) involved here too.
Jan, just out of curiousity, can you also run the tests with
barriers off and the drive write cache turned off? I would
expect the cache+barriers to be faster...
Cheers,
Dave.
--
Dave Chinner
R&D Software Enginner
SGI Australian Software Group
prev parent reply other threads:[~2006-05-23 1:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-19 9:34 XFS write speed drop Jan Engelhardt
2006-05-22 0:53 ` Nathan Scott
2006-05-22 12:21 ` Jan Engelhardt
2006-05-22 22:43 ` Nathan Scott
2006-05-23 13:23 ` Jan Engelhardt
2006-05-23 22:22 ` Nathan Scott
2006-05-23 23:17 ` Nathan Scott
2006-05-24 7:16 ` Jeremy Higdon
2006-05-26 7:20 ` Helge Hafting
2006-05-26 8:51 ` Jan Engelhardt
2006-05-26 21:06 ` Bernd Eckenfels
2006-05-23 1:26 ` David Chinner [this message]
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