From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261462AbVFFOM1 (ORCPT ); Mon, 6 Jun 2005 10:12:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261467AbVFFOM0 (ORCPT ); Mon, 6 Jun 2005 10:12:26 -0400 Received: from anubis.fi.muni.cz ([147.251.54.96]:26640 "EHLO anubis.fi.muni.cz") by vger.kernel.org with ESMTP id S261462AbVFFOMH (ORCPT ); Mon, 6 Jun 2005 10:12:07 -0400 Date: Mon, 6 Jun 2005 16:12:14 +0200 From: Lukas Hejtmanek To: Christoph Hellwig , linux-kernel@vger.kernel.org Subject: Re: Sk98Lin driver Message-ID: <20050606141214.GA2837@mail.muni.cz> References: <20050606131425.GF18862@mail.muni.cz> <20050606132841.GA10486@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20050606132841.GA10486@infradead.org> X-echelon: NSA, CIA, CI5, MI5, FBI, KGB, BIS, Plutonium, Bin Laden, bomb User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 06, 2005 at 02:28:42PM +0100, Christoph Hellwig wrote: > Can you give the skge driver that obsoletes sk98lin in -mm? > > (insert rant here why it's still not in mainline) Slightly better but still not good enough. Using my testing application it reports about 10 errors/sec (frame). Using iperf: iperf -s -u -w 16m ------------------------------------------------------------ Server listening on UDP port 5001 Receiving 1470 byte datagrams UDP buffer size: 16.0 MByte ------------------------------------------------------------ [ 5] local 147.251.54.96 port 5001 connected with 147.251.54.34 port 32915 [ 5] 0.0-10.3 sec 614 MBytes 502 Mbits/sec 15.220 ms 376630/814324 (46%) [ 5] 0.0-10.3 sec 1 datagrams received out-of-order it is 46% packet loss but no errors on interface. (peer is dual opteron box, my box is Pentium-M 1.6GHz, 512MB RAM). Sending to peer using iperf: iperf -s -u -w 16m ------------------------------------------------------------ Server listening on UDP port 5001 Receiving 1470 byte datagrams UDP buffer size: 16.0 MByte ------------------------------------------------------------ [ 3] local 147.251.54.34 port 5001 connected with 147.251.54.96 port 1024 [ 3] 0.0-10.0 sec 836 MBytes 700 Mbits/sec 0.013 ms 290722/886955 (33%) [ 3] 0.0-10.0 sec 1 datagrams received out-of-order This second case is a lot better than original driver from syskonnect which flooded outgoing interface at rate 500Mbps and no more packets were transmitted. Boxes are interconnected using GE switch which can handle about 920Mbps between two dual operon boxes. -- Lukáš Hejtmánek