From: Trond Myklebust <Trond.Myklebust@netapp.com>
To: Gregory Magoon <gmagoon@MIT.EDU>
Cc: linux-nfs@vger.kernel.org
Subject: Re: NFSv4 vs NFSv3 with MPICH2-1.4
Date: Thu, 28 Jul 2011 17:47:57 -0400 [thread overview]
Message-ID: <1311889677.27285.14.camel@lade.trondhjem.org> (raw)
In-Reply-To: <20110728172449.8wxxte4jg0s8kcgs@webmail.mit.edu>
On Thu, 2011-07-28 at 17:24 -0400, Gregory Magoon wrote:
> Thanks for the tips...unfortunately, making the changes you suggest (removing
> timeo, rsize, wsize options) doesn't seem to address the issue with MPICH2 and
> NFSv4.
Have you turned off delegations on the server? I wouldn't expect them to
help much on an MPI workload.
Otherwise, you might want to post a comparison of your results from
'nfsstat' for your workload on NFSv3 and NFSv4.
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@netapp.com
www.netapp.com
next prev parent reply other threads:[~2011-07-28 21:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-28 19:23 NFSv4 vs NFSv3 with MPICH2-1.4 Gregory Magoon
2011-07-28 20:58 ` Trond Myklebust
2011-07-28 21:24 ` Gregory Magoon
2011-07-28 21:47 ` Trond Myklebust [this message]
2011-07-28 22:01 ` Gregory Magoon
2011-07-28 22:31 ` Boaz Harrosh
2011-07-28 23:15 ` Gregory Magoon
2011-07-30 3:19 ` Boaz Harrosh
2011-07-30 3:56 ` Loewe, Bill
2011-08-02 16:19 ` Gregory Magoon
2011-08-09 23:15 ` Gregory Magoon
2011-08-10 0:54 ` Boaz Harrosh
2011-07-29 14:51 ` J. Bruce Fields
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1311889677.27285.14.camel@lade.trondhjem.org \
--to=trond.myklebust@netapp.com \
--cc=gmagoon@MIT.EDU \
--cc=linux-nfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).