From: Jason Holmes Subject: Re: 2.4 vs. 2.6 nfs client performance Date: Wed, 12 Nov 2003 16:33:44 -0500 Sender: nfs-admin@lists.sourceforge.net Message-ID: <3FB2A738.3F2C90B8@psu.edu> References: <3FB27670.4C878A84@psu.edu> <3FB29D43.A618973D@psu.edu> <16306.41898.291062.36209@charged.uio.no> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: nfs@lists.sourceforge.net Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Cipher TLSv1:DES-CBC3-SHA:168) (Exim 3.31-VA-mm2 #1 (Debian)) id 1AK2cu-0004c0-00 for ; Wed, 12 Nov 2003 13:34:12 -0800 Received: from vpn-19-18.aset.psu.edu ([146.186.19.18] helo=funkmachine.cac.psu.edu) by sc8-sf-mx1.sourceforge.net with esmtp (Exim 4.24) id 1AK2ct-0000gb-LO for nfs@lists.sourceforge.net; Wed, 12 Nov 2003 13:34:11 -0800 To: trond.myklebust@fys.uio.no Errors-To: nfs-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Unsubscribe: , List-Archive: Trond Myklebust wrote: > > >>>>> " " == Jason Holmes writes: > > > Client nfs v3: null getattr setattr lookup access readlink 0 0% > > 744 0% 0 0% 129 0% 252 0% 0 0% read write create mkdir symlink > > mknod 873 0% 178574 14% 24 0% 0 0% 0 0% 0 0% remove rmdir > > rename link readdir readdirplus 24 0% 0 0% 0 0% 0 0% 18 0% 0 0% > > fsstat fsinfo pathconf commit 0 0% 3 0% 0 0% 1023451 84% > > > Client rpc stats: calls retrans authrefrsh 1204092 3 0 > > Something is seriously screwed up here: it should be impossible to get > more commit requests than there are write requests. > > Basically, commit is only sent if at least one unstable write has been > sent, and is waiting on the commit list. The commit list itself is > emptied before the RPC call gets sent. If the commit fails, it > resends all pending writes. > > IOW: it looks like you are seeing some form of list corruption. I > suspect that the problem here might be something scribbling over the > nfs_inode. Are you running with slab debugging, and stack overflow > enabled? I wasn't, but I'm recompiling test9-bk17 with all of the debugging options turned on right now. Is there anything in particular you want me to do? Thanks, -- Jason Holmes ------------------------------------------------------- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs