[Gluster-users] directory traversal speed

Raghavendra G raghavendra at gluster.com
Wed Dec 1 06:55:55 UTC 2010

Hi Lana,

Yes, improvement is because of stat-prefetch translator.

----- Original Message -----
From: "Lana Deere" <lana.deere at gmail.com>
To: gluster-users at gluster.org
Sent: Wednesday, December 1, 2010 4:04:47 AM
Subject: Re: [Gluster-users] directory traversal speed

For gluster 3.1.0 on a large hierarchy I reported that it took these
times to build a list of files:
>  3. 4678 seconds then 4648 seconds.

For gluster 3.1.1 on the same hierarchy, having done "gluster volume
reset" after the upgrade, I got
640 seconds then 90 seconds.  I'm guessing this improvement is due to
the stat-prefetch translator, but whether or not my guess is correct,
this is a nice speedup.

.. Lana (lana.deere at gmail.com)

On Fri, Nov 5, 2010 at 3:03 PM, Lana Deere <lana.deere at gmail.com> wrote:
> I have a program which traverses directories and builds a list of
> files in those directories.  The hierarchy being traversed consists
> of approximately 750,000 files scattered among approximately 4100
> directories.  I ran it under three configurations:
>  3. GlusterFS 3.1.0 / RDMA / Distributed / native fuse clients.
> I did the experiment twice in a row on each configuration.  Results:
>  3. 4678 seconds then 4648 seconds.
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