From: Trond Myklebust Subject: Re: NFS server not responding Date: 28 Nov 2003 11:56:25 -0500 Sender: nfs-admin@lists.sourceforge.net Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Douglas Furlong , 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 1APlv1-0002oB-00 for ; Fri, 28 Nov 2003 08:56:35 -0800 Received: from pat.uio.no ([129.240.130.16] ident=7411) by sc8-sf-mx1.sourceforge.net with esmtp (Exim 4.24) id 1APlv0-0000Ow-UG for nfs@lists.sourceforge.net; Fri, 28 Nov 2003 08:56:35 -0800 To: Bogdan Costescu In-Reply-To: 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: >>>>> " " == Bogdan Costescu writes: > I also see something like 0.8-1% retransmissions and these > messages on newly installed Fedora Core 1 on some cluster > nodes, using default r/wsize (8192). As I'm using root-NFS, the > node is quite useless when this situation happens. I'm sure Huh? Why should a 1% retransmission make a noticable difference? Be realistic: we're talking about a delay of 100ms on 1/100 requests... I get ~2% retransmission rate when I do UDP loopback mounts without seeing any problems at all: it still compares well to the same mount using TCP. Now it may be that the Fedora kernel has some other crap in it that is screwing up interrupts & other such things (NAPI perhaps?). Has anybody that is seeing these problems made a comparison with an equivalent stock Marcelo kernel? Cheers, Trond ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs