[CentOS] Slow NFS writes

Joshua Baker-LePain jlb17 at duke.edu
Mon Oct 20 17:57:24 UTC 2008

On Mon, 20 Oct 2008 at 10:49am, Craig White wrote

> I was using a 648 Gb 'PSD' file which surely is beyond caching.

Your initial email stated "648 Megabyte Photoshop file (PSD)".  Also, 
your transfer times are on the order of 20 seconds.  Unless you have a 
network running at 32 GB/s, I don't think you mean 648 GB.

As an aside, it'd be fun to watch Photoshop try to open a file over half a 
terabyte in size.

> You definitely were correct in your assertion and stupid me should have
> tested it from another Linux box.
> $ time cp BackgroundGraphic.psd /home/filesystems/srv-adv/
> real    0m18.547s
> user    0m0.015s
> sys     0m3.306s
> so the problem isn't NFS slow writes...it's slow NFS writes from
> Macintosh client  ;-(

Get rid of the Macs.  Problem solved.  ;)

Joshua Baker-LePain
QB3 Shared Cluster Sysadmin

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