[Twg] [Discuss] FW: OpenSFS TWG Requi... - Have we achieved the single-server MD...

Mon Apr 30 20:03:23 UTC 2012

I think it was the statahead (I don't remember the bug number) to improve the "ls –la" performance…

Sarp

--
Sarp Oral, PhD

National Center for Computational Sciences
Oak Ridge National Laboratory
oralhs at ornl.gov
865-574-2173

From: Alex Tomas <bzzz.tomas at gmail.com<mailto:bzzz.tomas at gmail.com>>
Date: Mon, 30 Apr 2012 15:47:23 -0400
To: Nathan Rutman <Nathan_Rutman at xyratex.com<mailto:Nathan_Rutman at xyratex.com>>
Cc: "twg at lists.opensfs.org<mailto:twg at lists.opensfs.org>" <twg at lists.opensfs.org<mailto:twg at lists.opensfs.org>>, "discuss at lists.opensfs.org<mailto:discuss at lists.opensfs.org>" <discuss at lists.opensfs.org<mailto:discuss at lists.opensfs.org>>
Subject: Re: [Twg] [Discuss] FW: OpenSFS TWG Requi... - Have we achieved the single-server MD...

hmm? pdirops is not supposed to improve directory listing, AFAIK.

thanks, Alex

On Mon, Apr 30, 2012 at 11:23 PM, Nathan Rutman <Nathan_Rutman at xyratex.com<mailto:Nathan_Rutman at xyratex.com>> wrote:
pdirops was delivered, but the improvement results were somewhat disappointing.  I've seen no metrics for various directory listing improvements, although they may exist.
Should we set a target rate? E.g. "ls -al" for a dir with 100K single-stripe files?

On Apr 30, 2012, at 11:53 AM, John Carrier wrote:

Nathan adds a good question:  metadata performance was the focus of our last RFP.  Are there any performance targets not covered by our current development contract?

--jc

Nathan Rutman added a comment to OpenSFS TWG Requirements 2012<https://docs.google.com/document/d/1gXs0VPaCNEU3l9OuXYmBCyxKEm3dkIV60smCVAD5Un8/edit?disco=AAAAAEv8ZFI>
Nathan Rutman
Metadata server performance
Have we achieved the single-server MDS performance goals? Do we need to move some more solid requirements to 2012?

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