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From: Emmanuel Florac <eflorac@intellique.com>
To: Andrew Clayton <andrew@digital-domain.net>, xfs@oss.sgi.com
Subject: Re: Latencies in XFS.
Date: Sat, 13 Oct 2007 20:10:15 +0200	[thread overview]
Message-ID: <20071013201015.4a8008bb@galadriel.home> (raw)
In-Reply-To: <20071009163635.413dec0c@zeus.pccl.info>

Le Tue, 9 Oct 2007 16:36:35 +0100 vous écriviez:

> I think I have narrowed it down to XFS.

I notice you use a bleeding-edge unstable kernel, with a whole new
scheduler. I tried your benchmark on a machine running a known stable
kernel (2.6.20.17) and the slowdown is similar in xfs and other fs.

As a side note, I personnally wouldn't choose xfs for desktop users home
directories (email,web, etc) because it's much better at pure
throughput and quite slower at IOPS than other FSes. Reiserfs is the
best of the common FSes for this.

I'm quite surprised that apparently your production system is running
a prerelease kernel. Why? 

-- 
--------------------------------------------------
Emmanuel Florac               www.intellique.com   
--------------------------------------------------

  parent reply	other threads:[~2007-10-13 18:10 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-09 15:36 Latencies in XFS Andrew Clayton
2007-10-13 15:35 ` Peter Grandi
2007-10-13 18:10 ` Emmanuel Florac [this message]
2007-10-14  0:23   ` Andrew Clayton
2007-10-14 14:49     ` Emmanuel Florac

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