From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from fieldses.org ([174.143.236.118]:44014 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754423Ab1LLWHQ (ORCPT ); Mon, 12 Dec 2011 17:07:16 -0500 Date: Mon, 12 Dec 2011 17:07:16 -0500 From: "J. Bruce Fields" To: John Simon Cc: linux-nfs@vger.kernel.org Subject: Re: Intermittent performance issues with Solaris 10 NFS V3 client to RHEL 5.5 NFS server Message-ID: <20111212220715.GG20826@fieldses.org> References: <20111212161348.GG18185@fieldses.org> <1323713796.6172.YahooMailClassic@web181402.mail.ne1.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1323713796.6172.YahooMailClassic@web181402.mail.ne1.yahoo.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Mon, Dec 12, 2011 at 10:16:36AM -0800, John Simon wrote: > I had opened a case with SUN/Oracle and send trace and snoop output. Their comment was the issue was response from the Linux side. Did they give any reason for that? > > - Can you get any rpc statistics out of the client? (Average > > time to respond to an rpc, mix of rpc's sent, etc.?) > > I need to look at rpc stats on the client. > > I received a couple off list replies from other users who mentioned > they encountered similar issues and upgrading their kernel helped (one > user was on 5.5 and went to 5.6 and another was running Debian). If > anyone knows of any issues with 2.6.18-194.el5 nfs-utils-1.0.9-44.el5 > that could cause intermittent performance for NFS I would appreciate > it. Especially if it's specific to a particular Red Hat kernel, getting Red Hat support involved would make sense. --b.