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xen-users
RE: [Xen-users] Xen SAN Questions
Well I figured out one thing, that my numbers were totally off for EXT3 and XFS
without DRBD haha.
I will do some more testing, I can't believe I ruled out "dd" as a viable
benchmark.
*smacks forehead*
Thanks for the help, I am testing with those DRBD config options now.
Tait
-----Original Message-----
From: Nathan Stratton [mailto:nathan@xxxxxxxxxxxx]
Sent: Tuesday, January 27, 2009 3:08 PM
To: Tait Clarridge
Cc: John Madden; xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] Xen SAN Questions
On Tue, 27 Jan 2009, Tait Clarridge wrote:
> With the DRBD and GFS (in primary/primary mode) setup I was seeing an
> average of roughly 55MB/s as opposed to ~206MB/s for EXT3 and ~334 MB/s
> on XFS... (unless my numbers are horribly wrong).
Hmm, what is your DRBD setup? Try the following:
no-disk-barrier;
no-disk-flushes;
no-md-flushes;
no-disk-drain;
> Which program are you benchmarking I/O with?
dd if=/dev/zero of=/share/test bs=1G count=8
><>
Nathan Stratton CTO, BlinkMind, Inc.
nathan at robotics.net nathan at blinkmind.com
http://www.robotics.net http://www.blinkmind.com
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