From: subbie subbie <subbie_subbie@yahoo.com>
To: Jon Burgess <jburgess@uklinux.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 3Ware 9500S-12 RAID controller -- poor performance
Date: Mon, 10 Oct 2005 03:42:17 -0700 (PDT) [thread overview]
Message-ID: <20051010104217.20341.qmail@web30305.mail.mud.yahoo.com> (raw)
In-Reply-To: <4346EA35.90700@uklinux.net>
OK,
I now dumped RAID5 and am running all of my 12 disks
separately each partitioned with XFS.
I did a very crude test of reading a single 1GB file
from each of my disks in parallel by putting 12 dd
processes into the background. Each file was read at
approximately 35MB/s giving an aggragate of a little
over 400MB/s. According to 3Ware support, 400MB/s is
the "theoretical maximum" of this controller. I'm
very happy with these results.
I want to run a killer test where 400 files are being
read in parallel to see what the combined throughput
would be. Can anyone recommend a benchmark utility
that would help me do so? I tried using bonnie/iozone
but they (to my limited understanding) won't do this.
Can anyone point me in the right direction?
Thank you
__________________________________
Yahoo! Mail - PC Magazine Editors' Choice 2005
http://mail.yahoo.com
next prev parent reply other threads:[~2005-10-10 10:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-07 21:35 Jon Burgess
2005-10-10 10:42 ` subbie subbie [this message]
2005-10-10 10:54 ` Dr. David Alan Gilbert
2005-10-10 11:07 ` Mikael Abrahamsson
2005-10-10 11:22 ` subbie subbie
2005-10-10 12:36 ` Mikael Abrahamsson
-- strict thread matches above, loose matches on Subject: below --
2005-09-30 6:51 subbie subbie
2005-09-30 6:50 subbie subbie
2005-10-02 0:07 ` Ian Morgan
2005-10-05 6:43 ` subbie subbie
2005-10-05 11:25 ` Dr. David Alan Gilbert
2005-10-05 13:08 ` subbie subbie
2005-10-05 13:18 ` Dr. David Alan Gilbert
2005-10-05 13:39 ` subbie subbie
2005-10-05 13:40 ` Ian E. Morgan
2005-10-06 7:34 ` subbie subbie
2005-10-03 14:34 ` Ville Herva
2005-10-05 20:07 ` Miquel van Smoorenburg
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