From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ns2.cypress.com ([157.95.67.5]:62247 "EHLO ns2.cypress.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757150Ab0EXWa6 (ORCPT ); Mon, 24 May 2010 18:30:58 -0400 Received: from corpmail.cypress.com (corpmail [157.95.1.2]) by ns2.cypress.com (8.12.10/8.12.10) with ESMTP id o4OM6CB0002378 for ; Mon, 24 May 2010 15:06:12 -0700 (PDT) Received: from cobweb.mis.cypress.com (cobweb.mis.cypress.com [172.16.2.5]) by corpmail.cypress.com (8.12.10/8.12.10) with ESMTP id o4OM66th015884 for ; Mon, 24 May 2010 15:06:06 -0700 (PDT) Received: from meson.design.cypress.com (meson.design.cypress.com [172.17.2.36]) by cobweb.mis.cypress.com (8.12.11/8.12.11) with ESMTP id o4OM651l029452 for ; Mon, 24 May 2010 15:06:05 -0700 (PDT) Received: from lucas.design.cypress.com (lucas [172.17.14.37]) by meson.design.cypress.com (8.9.3+Sun/8.9.3) with ESMTP id PAA28957 for ; Mon, 24 May 2010 15:06:05 -0700 (PDT) Received: from lucas.design.cypress.com (localhost [127.0.0.1]) by lucas.design.cypress.com (8.13.8/8.13.8) with ESMTP id o4OM64Z1030480 for ; Mon, 24 May 2010 15:06:04 -0700 Message-ID: <4BFAF84C.5040003@cypress.com> Date: Mon, 24 May 2010 15:06:04 -0700 From: Risto Bell To: "linux-nfs@vger.kernel.org" Subject: Re: FW: Yet Another NFS Performance Question References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Kumar, Amit H. wrote: > Context: NFSv3: > I would like to get your input on the following NFS stats recorded on our server. I have read up this thread(http://www.opensubscriber.com/message/nfs@lists.sourceforge.net/7833588.html) describing the contents of /proc/net/rpc/nfsd; > > My Numbers are really high, for 'th' line in nfsd file... > ... > # uname -a > Linux nfs3-io-0-3.local 2.6.18-53.1.14.el5 #1 SMP Wed Mar 5 11:37:38 EST 2008 x86_64 x86_64 x86_64 GNU/Linux > ... Your clients (if close to CENTOS5.1: upgrade) may be hitting: https://bugzilla.redhat.com/show_bug.cgi?id=321111 http://bugs.centos.org/view.php?id=2635 Client caching is impaired, hits server VERY much harder, more often than necessary (slow down on clients, network, and server). To demo: loop stat of a mounted dir's file that does not exist, the deeper (dir depth) the better. --------------------------------------------------------------- This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message. ---------------------------------------------------------------