From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267606AbUHEJAs (ORCPT ); Thu, 5 Aug 2004 05:00:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267593AbUHEJAs (ORCPT ); Thu, 5 Aug 2004 05:00:48 -0400 Received: from smtp05.web.de ([217.72.192.209]:13990 "EHLO smtp05.web.de") by vger.kernel.org with ESMTP id S267606AbUHEJA3 (ORCPT ); Thu, 5 Aug 2004 05:00:29 -0400 From: Bernd Schubert To: Frank Steiner Subject: Re: 3c59x very slow with 2.6.X Date: Thu, 5 Aug 2004 11:00:47 +0200 User-Agent: KMail/1.6.2 References: <200408042203.42367.bernd-schubert@web.de> <4111CD14.30601@bio.ifi.lmu.de> In-Reply-To: <4111CD14.30601@bio.ifi.lmu.de> Cc: Kernel Mailing List MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200408051100.48267.bernd-schubert@web.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 05 August 2004 08:00, you wrote: > Bernd Schubert wrote: > > Hello, > > > > somehow the network speed is reduced to 14MBit with 2.6.X on my system, > > with 2.4.X it has full 100MBit. > > As all our systems boot diskless this is really annoying and I will > > reboot 2.4.27 soon. > > > > euklid:~# nttcp -T hamilton2 > > Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s > > CPU-C/s l 8388608 4.73 4.60 14.2004 14.5911 2048 > > 433.36 445.3 1 8388608 4.73 0.03 14.1984 2236.9621 > > 6145 1300.12 204833.3 > > No problem here: both machines have a 3com 3c905CX-TX and run kernel 2.6.7. > > zassenhaus /root# nttcp -T riemann > Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s > CPU-C/s l 8388608 0.71 0.01 94.9903 7457.3690 2048 > 2898.87 227580.8 1 8388608 0.71 0.04 93.9984 1598.0964 > 5794 8115.57 137975.4 > > The driver is compiled into the kernel, not as module. Could that make a > difference for you? Its also compiled into the kernel on our systems. Here are the numbers with 2.4.27-rc5: euklid:~# nttcp -T hamilton2 Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s l 8388608 0.71 0.04 94.9401 1677.7216 2048 2897.34 51200.0 1 8388608 0.71 0.03 94.1146 2236.9621 5797 8129.81 193233.3 Cheers, Bernd