From owner-freebsd-stable Thu Dec 13 6:44:31 2001 Delivered-To: freebsd-stable@freebsd.org Received: from smtp.www-service.de (smtp.www-service.de [212.77.161.16]) by hub.freebsd.org (Postfix) with SMTP id B679F37B41C for ; Thu, 13 Dec 2001 06:44:28 -0800 (PST) Received: (qmail 15221 invoked from network); 13 Dec 2001 14:44:26 -0000 Received: from pd90065d6.dip.t-dialin.net (HELO fw.tue.le) (217.0.101.214) by smtp.www-service.de with SMTP; 13 Dec 2001 14:44:26 -0000 Received: from mezcal.tue.le (mezcal.tue.le [192.168.201.20]) by fw.tue.le (8.8.8/8.8.8) with ESMTP id PAA12831; Thu, 13 Dec 2001 15:43:52 +0100 (CET) (envelope-from thz@mezcal.tue.le) Received: (from thz@localhost) by mezcal.tue.le (8.11.6/8.11.6) id fBDEhpk87442; Thu, 13 Dec 2001 15:43:51 +0100 (CET) (envelope-from thz) Date: Thu, 13 Dec 2001 15:43:51 +0100 From: Thomas Zenker To: Mike Tancsa Cc: stable@freebsd.org Subject: Re: TCP stack still hosed? Message-ID: <20011213154351.B80481@mezcal.tue.le> Mail-Followup-To: Thomas Zenker , Mike Tancsa , stable@freebsd.org References: <20011213105451.A738@mezcal.tue.le> <5.1.0.14.0.20011213091122.048e2940@marble.sentex.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, Dec 13, 2001 at 09:23:37AM -0500, Mike Tancsa wrote: > At 10:54 AM 12/13/01 +0100, Thomas Zenker wrote: > >Hi, > > > >after making new kernels I have noticed a dramatical performance drop > >in the tcp stack. > > > >"host-242" is installed, the release is fetched from "mezcal". > >Both are connected to a switch 10/100TX, mezcal has a fxp running > >with 100baseTX, host-242 has a NetGear USB/ethernet adapter (10TX). > > > I seem to recall a number of USB commits recently. Could it be driver > related ? What if you did it with 2 fxp cards ? > > ---Mike > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message see my other mails as well, I did backout the netinet stuff back to 20 Nov. and all works well. Probably it has to do with loss of packets in the switch changing from 100Mbps to 10 Mbps, and then tcp falling in strange recovery behaviour?? Could try to track down the change more precisely. -- Thomas Zenker c/o Lennartz electronic GmbH Bismarckstrasse 136, D-72072 Tuebingen, Germany Phone: +49-(0)7071-93550 Email: thz@lennartz-electronic.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message