From: Andreas Dilger <adilger@clusterfs.com>
To: "E. Gryaznova" <grev@namesys.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Can dbench be used for benchmarking fs?
Date: Tue, 7 Oct 2003 08:29:44 -0600 [thread overview]
Message-ID: <20031007082944.D1564@schatzie.adilger.int> (raw)
In-Reply-To: <3F82B4C6.707221A@namesys.com>; from grev@namesys.com on Tue, Oct 07, 2003 at 04:42:46PM +0400
On Oct 07, 2003 16:42 +0400, E. Gryaznova wrote:
> I use dbench for benchmarking the file systems and some results are
> suspicious for me.
> :
> :
> :
> As the result: the measuring deviation is equal = 23.4062 - 15.7005 =
> 7.7057 or about ~38% from average value.
>
> So, I have 2 questions :
> 1. Is there a way to avoid such big deviations on measuring a file
> systems throughput and to get more stable results?
> 2. Can dbench be used for benchmarking the file systems and if it is so
> -- what is the predictable error on the measuring?
Dbench is not a good filesystem benchmark, because it deletes all of the
files at the end. Use something else for the filesystem benchmark - there
are lots of them (bonnie, iozone, mongo, etc).
Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/
next prev parent reply other threads:[~2003-10-07 14:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-07 12:42 E. Gryaznova
2003-10-07 14:29 ` Andreas Dilger [this message]
2003-10-07 14:45 ` Nikita Danilov
2003-10-07 15:59 ` Andreas Dilger
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