From: Greg Banks Subject: Re: Strange delays on NFS server Date: Wed, 25 Aug 2004 12:02:41 +1000 Sender: nfs-admin@lists.sourceforge.net Message-ID: <20040825020241.GB16037@sgi.com> References: <20040811164135.GA11101@suse.de> <411B8987.1030609@stams.strath.ac.uk> <411CD601.1080308@RedHat.com> <4120AB46.1080606@stams.strath.ac.uk> <20040816131434.GL3510@suse.de> <4120C8D5.3040606@stams.strath.ac.uk> <20040816145435.GQ3510@suse.de> <4124CD95.7020007@stams.strath.ac.uk> <20040820095854.GC23176@suse.de> <412B0EDE.5010206@stams.strath.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Olaf Kirch , nfs@lists.sourceforge.net Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list2.sourceforge.net with esmtp (Exim 4.30) id 1Bzn7n-00049v-5M for nfs@lists.sourceforge.net; Tue, 24 Aug 2004 19:02:55 -0700 Received: from omx3-ext.sgi.com ([192.48.171.20] helo=omx3.sgi.com) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.34) id 1Bzn7l-0001ST-KS for nfs@lists.sourceforge.net; Tue, 24 Aug 2004 19:02:54 -0700 To: Ian Thurlbeck In-Reply-To: <412B0EDE.5010206@stams.strath.ac.uk> 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: On Tue, Aug 24, 2004 at 10:48:14AM +0100, Ian Thurlbeck wrote: > > What on earth could be writing up to 3GB of data to the drive ? > As before the usual suspects of kjournald, kupdated, bdflush and > nfsd turn up on the process list. > > Just how big is the nfs write cache on a typical server ? It can be most of RAM. > Is it > writing the whole lot one go ? It might be. What ratio of COMMIT to WRITE calls are you seeing in nfsstat? Does the export have "sync" or "async" in its options? Greg. -- Greg Banks, R&D Software Engineer, SGI Australian Software Group. I don't speak for SGI. ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs