From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 24 Aug 2001 11:16:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 24 Aug 2001 11:16:48 -0400 Received: from cx97923-a.phnx3.az.home.com ([24.9.112.194]:28082 "EHLO grok.yi.org") by vger.kernel.org with ESMTP id ; Fri, 24 Aug 2001 11:16:43 -0400 Message-ID: <3B866FDE.4003F3DD@candelatech.com> Date: Fri, 24 Aug 2001 08:16:46 -0700 From: Ben Greear Organization: Candela Technologies X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.9-pre4 i686) X-Accept-Language: en MIME-Version: 1.0 To: Martin Josefsson CC: Bernhard Busch , linux-kernel@vger.kernel.org Subject: Re: Poor Performance for ethernet bonding In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Martin Josefsson wrote: > > On Fri, 24 Aug 2001, Bernhard Busch wrote: > > > Hi > > > > > > I have tried to use ethernet network interfaces bonding to increase > > peformance. > > > > Bonding is working fine, but the performance is rather poor. > > FTP between 2 machines ( kernel 2.4.4 and 4 port DLink 100Mbit ethernet > > card) > > results in a transfer rate of 3MB/s). > > > > Any Hints? > > I've seen this too, it doesn't have anything to do with bonding, it's the > fact that you are sending packets out several interfaces at once that's > the cause. Same thing happend to me when transmitting at high speeds on > two interfaces at once without bonding. And you are using 4 interfaces so > I can imagine that it will be even worse than I saw. > > And bonding on my two eepro100 in another machine works perfectly, > no problem maxing out at aproximatly 200Mbit. I've run a sustained 10Mbps tx & rx on 8 ports (2 of the Dlink 4-port NICs) for over 24 hours on a 2.4.7 kernel. I was not using bonding though. I'm guessing you're seeing lots of carrier errors, as the tulip driver used to be very bad at...uh..working. Try a 2.4.6 kernel or better and I bet your problem goes away... Ben -- Ben Greear President of Candela Technologies Inc http://www.candelatech.com ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear