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List:       linux-xfs
Subject:    Re: Anyone using XFS in production on > 20TiB volumes?
From:       Emmanuel Florac <eflorac () intellique ! com>
Date:       2010-12-23 18:55:44
Message-ID: 20101223195544.53d45f0b () galadriel ! home
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Le Thu, 23 Dec 2010 13:06:10 -0500 (EST) vous écriviez:

> http://home.comcast.net/~jpiszcz/20101223/final.html
> 

Something's wrong with the file create/stat/delete tests. Did you mount
with "nobarrier"? 
Which drives, controller firmware, raid level, stripe width? 

BTW don't run only one test, it's meaningless. I always run at least 8
cycles (and up to 30 or 40 cycles) and then calculate the average and
standard deviation, because one test among a cycle may vary wildly for
some reason. You don't need the "char" tests, that doesn't correspond
to any real-life usage pattern. Better run bonnie with the -f option,
and -x with some large enough value.

-- 
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                    |   Intellique
                    |	<eflorac@intellique.com>
                    |   +33 1 78 94 84 02
------------------------------------------------------------------------

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