From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261664AbTJHPxs (ORCPT ); Wed, 8 Oct 2003 11:53:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261680AbTJHPxs (ORCPT ); Wed, 8 Oct 2003 11:53:48 -0400 Received: from vwisb7.vkw.tu-dresden.de ([141.30.51.183]:61604 "EHLO vwisb7.vkw.tu-dresden.de") by vger.kernel.org with ESMTP id S261664AbTJHPxq (ORCPT ); Wed, 8 Oct 2003 11:53:46 -0400 Date: Wed, 8 Oct 2003 17:53:45 +0200 From: Torsten Werner To: linux-kernel@vger.kernel.org Subject: NFS speed problem when appending data to existing files Message-ID: <20031008155345.GA15071@vwisb7.vkw.tu-dresden.de> Mail-Followup-To: Torsten Werner , linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Operating-System: Linux 2.4.21 i686 User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, the following command for i in `seq 1 10240`; do dd if=/dev/zero bs=100 count=1 2> /dev/null | tee -a tmp0; done is very slow on a nfs mounted homedir and I get lots of error messages nfs: server xxxxxx not responding, still trying nfs: server xxxxxx OK on the client side (2.4.22, server is a 2.4.21 kernel based nfsd). Only appending small amounts of data to an existing file shows the problem. Writing a large file happens at FastEthernet speed flawlessly. Any help, please? Thanks, Torsten -- Torsten Werner Dresden University of Technology email@twerner42.de +49 351 46336711 / +49 162 3123004 http://www.twerner42.de/ telefax: +49 351 46336809