Re: Many-metadata performance still at a loss

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Jan Engelhardt put forth on 3/10/2011 8:14 AM:
> Hi,
> 
> 
> Between 2.6.33 and 2.6.37 there was a lot of interesting announcements 
> with regards to XFS performance. However, now that I booted into 
> 2.6.37.2, I still see the metadata slowness from earlier.
> (Basically `time (tar -xf linux-2.6.37.tar.gz; sync)` - ext4 gets the 
> job done in like 15-20 seconds, xfs is still syncing after 11 minutes.)
> 
> Was there something I missed?

Yes.  You have to add "delaylog" to your mount options to enable the
metadata performance enhancement.  It won't be the default setting until
2.6.39.

-- 
Stan

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