From: Michael Monnerie <michael.monnerie@is.it-management.at>
To: xfs@oss.sgi.com
Cc: Norbert Veber <nveber@pyre.virge.net>
Subject: Re: Small files perform much faster on newly formatted fs?
Date: Wed, 8 Jun 2011 15:47:33 +0200 [thread overview]
Message-ID: <201106081547.38266@zmi.at> (raw)
In-Reply-To: <20110608122638.GQ28625@pyre.virge.net>
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On Mittwoch, 8. Juni 2011 Norbert Veber wrote:
> Yes its already mounted this way as I mentioned in my original
> message: /dev/mapper/vg0-shared on /shared type xfs
> (rw,noatime,sunit=128,swidth=256)
Oh, I did only look at the xfs_info output.
> Both filesystems are on the same MD raid 5 which consists of 3 1 tb
> WD Black hard drive.
The difference could be that your filesystem is very much aged, and the
free space clustered around to new files get heavily fragmented. Did you
run xfs_defrag often? How full is your filesystem?
Also the log has sunit=0 against 16, maybe there's the diff.
Are you on a newer kernel that supports delaylog? Then try that.
--
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc
it-management Internet Services: Protéger
http://proteger.at [gesprochen: Prot-e-schee]
Tel: +43 660 / 415 6531
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next prev parent reply other threads:[~2011-06-08 13:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-07 16:37 Small files perform much faster on newly formatted fs? Norbert Veber
2011-06-08 7:11 ` Michael Monnerie
2011-06-08 12:26 ` Norbert Veber
2011-06-08 13:47 ` Michael Monnerie [this message]
2011-06-08 18:58 ` Norbert Veber
2011-06-09 5:44 ` Michael Monnerie
2011-06-08 20:52 ` Eric Sandeen
2011-06-08 21:16 ` Eric Sandeen
2011-06-09 1:29 ` Dave Chinner
2011-06-09 8:22 ` Christoph Hellwig
2011-06-09 13:48 ` Norbert Veber
2011-06-09 16:30 ` Michael Monnerie
2011-06-09 20:30 ` Norbert Veber
2011-06-09 21:17 ` Dave Chinner
2011-06-10 0:54 ` Norbert Veber
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