From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harry Edmon Subject: Re: Network performance degradation from 2.6.11.12 to 2.6.16.20 Date: Mon, 19 Jun 2006 06:54:46 -0700 Message-ID: <4496ACA6.7090305@atmos.washington.edu> References: <4492D5D3.4000303@atmos.washington.edu> <20060617153511.53a129a3.akpm@osdl.org> <44948EF6.1060201@atmos.washington.edu> <20060617165611.2c478723.akpm@osdl.org> <4494C592.6090601@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Andrew Morton , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: Received: from dew1.atmos.washington.edu ([128.95.89.41]:21717 "EHLO dew1.atmos.washington.edu") by vger.kernel.org with ESMTP id S932211AbWFSNy7 (ORCPT ); Mon, 19 Jun 2006 09:54:59 -0400 To: Stephen Hemminger In-Reply-To: <4494C592.6090601@osdl.org> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Stephen Hemminger wrote: > Does this fix it? > # sysctl -w net.ipv4.tcp_abc=0 That did not help. I have 1 minute outputs from tcpdump under both 2.6.11.12 and 2.6.16.20. You will see a large size difference between the files. Since the 2.6.11.12 one is 2 MBytes, I thought I would post them via the web instead of via attachments. Look at: http://www.atmos.washington.edu/~harry/linux/2.6.11.12.out.1min http://www.atmos.washington.edu/~harry/linux/2.6.16.20.out.1min And again, thank to all of you for looking into this. -- Dr. Harry Edmon E-MAIL: harry@atmos.washington.edu 206-543-0547 harry@u.washington.edu Dept of Atmospheric Sciences FAX: 206-543-0308 University of Washington, Box 351640, Seattle, WA 98195-1640