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Re: Read performance issues with 2.6.0test5?

To: freemyer-ml@xxxxxxxxxxxxxxxxx
Subject: Re: Read performance issues with 2.6.0test5?
From: Frank Hellmann <frank@xxxxxxxxxxxxx>
Date: Tue, 23 Sep 2003 14:50:06 +0200
Cc: Austin Gonyou <austin@xxxxxxxxxxxxxxx>, XFS List <linux-xfs@xxxxxxxxxxx>
In-reply-to: <1064253817.1744.1.camel@david.internal.NorcrossGroup.com>
Organization: Optical Art Film- und Special-Effects GmbH
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Hi!

Good suggestion and guess what? Performance is bad on the raw device as well. So it is not an XFS issue...

Sorry for the wrong guess...

                Cheers,
                                Frank...

Greg Freemyer wrote:
On Mon, 2003-09-22 at 12:37, Austin Gonyou wrote:


I agree that these results are odd. Something is amiss here, but there
really are many parts to remove before signifying one or the other. You
could always format that MD volume you made as EXT3 or Reiser and
perform the same test.


If the filesystem is of no value, you could also do you dd to the raw MD volume.

If that has similar problems then you can forget about xfs as the
bottleneck.


Greg

-- -------------------------------------------------------------------------- Frank Hellmann Optical Art GmbH Waterloohain 7a Digital Cinema http://www.opticalart.de 22769 Hamburg frank@xxxxxxxxxxxxx Tel: ++49 40 5111051 Fax: ++49 40 43169199


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