Re: observed significant performance improvement using "delaylog" in

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> 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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