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From: Khelben Blackstaff <eye.of.the.8eholder@gmail.com>
To: xfs@oss.sgi.com
Subject: Re: observed significant performance improvement using "delaylog" in
Date: Thu, 12 Aug 2010 13:46:30 +0300	[thread overview]
Message-ID: <201008121346.30760.eye.of.the.8eholder@gmail.com> (raw)

> I'm pleased to state that using the experimental "delaylog" mount option 
> (in vanilla linux-2.6.35) we measured a 17% performance increase
> for our benchmark scenario. (Other mount-options in use both before
> and after the "delaylog" option: noatime,nodiratime,nobarrier)

> That's a lot given that XFS was the fastest performing file-system
> for this application already.

> So thanks to all contributing developers for this significant optimization!

I did a benchmark (a simple copy/untar not something fancy) some time ago
and also noticed great improvement.

Here is my post with the results of the benchmark.
http://lordkhelben.wordpress.com/2010/07/08/xfs-delayed-logging/

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             reply	other threads:[~2010-08-12 10:46 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-12 10:46 Khelben Blackstaff [this message]
2010-08-12 19:05 ` observed significant performance improvement using "delaylog" in Michael Monnerie
2010-08-12 21:46   ` Peter Niemayer
2010-08-13  9:56     ` Stan Hoeppner
2010-08-13 10:35       ` Michael Monnerie
2010-08-13 12:29         ` Christoph Hellwig
2010-08-13 14:13           ` Dave Chinner
2010-08-13 20:42             ` Eric Sandeen
2010-08-14 11:28               ` Martin Steigerwald
2010-08-16  0:30                 ` Steven Pratt
2010-08-16  1:03                   ` Dave Chinner

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