From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Goodman Subject: Re: [NFS] http://client.linux-nfs.org/Linux-2.6.x/2.6.10/linux-2.6.10-33-access_cache.dif Date: Sat, 05 Feb 2005 17:42:28 -0800 Message-ID: <42057604.2060305@csua.berkeley.edu> References: <420496F7.9080900@csua.berkeley.edu> <1107649486.484.2.camel@lade.trondhjem.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: nfs@lists.sourceforge.net Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list2.sourceforge.net with esmtp (Exim 4.30) id 1CxbRc-0007dV-38 for nfs@lists.sourceforge.net; Sat, 05 Feb 2005 17:42:36 -0800 Received: from soda.csua.berkeley.edu ([128.32.112.233] ident=[OeU1eGnKGjveXXE4t/V2RkTO54Deyryo]) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:DES-CBC3-SHA:168) (Exim 4.41) id 1CxbRV-0008JJ-D8 for nfs@lists.sourceforge.net; Sat, 05 Feb 2005 17:42:36 -0800 To: Trond Myklebust In-Reply-To: <1107649486.484.2.camel@lade.trondhjem.org> Sender: nfs-admin@lists.sourceforge.net Errors-To: nfs-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Post: List-Help: List-Subscribe: , List-Archive: Trond Myklebust wrote: >lau den 05.02.2005 Klokka 01:50 (-0800) skreiv Mark Goodman: > > >>This patch appears to have the effect that non-existent files don't get >>cached. When I apply it to 2.6.10, a C preprocessor workload that >>involves opening lots of non-existent files slows down by an order of >>magnitude and I notice tens of thousands of NFS ACCESS calls per second >>according to nfsstat. >> >> > >Nope. NFS_ACCESS can only be called on files that *do* exist. > >Are you sure that you are not using it on directories that are changing >a lot? > >Cheers, > Trond > > > Yes, the directories are not changing. Mark ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs