From owner-stp@oss.sgi.com Mon May 7 09:24:14 2001 Received: (from majordomo@localhost) by oss.sgi.com (8.11.3/8.11.3) id f47GOE913885 for stp-outgoing; Mon, 7 May 2001 09:24:14 -0700 Received: from mailer.zib.de (mailer.zib.de [130.73.108.11]) by oss.sgi.com (8.11.3/8.11.3) with ESMTP id f47GOCF13879 for ; Mon, 7 May 2001 09:24:13 -0700 Received: from mailsrv2.zib.de (mailsrv2 [130.73.121.11]) by mailer.zib.de (8.9.3+Sun/8.9.1) with ESMTP id SAA12589 for ; Mon, 7 May 2001 18:24:10 +0200 (MET DST) Received: from hlr.zib.de (hlr.zib.de [130.73.73.1]) by mailsrv2.zib.de (8.9.3+Sun/8.9.1) with ESMTP id SAA24336 for ; Mon, 7 May 2001 18:24:10 +0200 (MET DST) Received: from csr-pc1.zib.de (csr-pc1.zib.de [130.73.72.59]) by hlr.zib.de (8.9.3+Sun/8.9.1) with ESMTP id SAA14182 for ; Mon, 7 May 2001 18:24:09 +0200 (MET DST) Received: (from heidl@localhost) by csr-pc1.zib.de (8.11.2/8.11.2/SuSE Linux 8.11.1-0.5) id f47GO8a00920 for stp@oss.sgi.com; Mon, 7 May 2001 18:24:08 +0200 Date: Mon, 7 May 2001 18:24:07 +0200 From: Sebastian Heidl To: stp@oss.sgi.com Subject: performance and message size Message-ID: <20010507182407.A25386@csr-pc1.zib.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i X-www.distributed.net: 618 RC5 packets (4278*2^28 keys) [2.17 Mkeys/s] Sender: owner-stp@oss.sgi.com Precedence: bulk Hi, I'm testing the latest stp patch against a 2.4.4-ac3 kernel (which should have the necessary zero-copy code I guess) using tstp on Gigabit Ethernet. Surprisingly I can't transmit packets larger than about 600 kB. The receiver accepts the connection but then gets a timeout in the receive call. Another strange thing is that the performance in comparison to the patch for the 2.4.0-test10 kernel dropped a lot. With the old code I could transmit messages up to 8 MB in size and got a max. throughput of about 103 MB/s. Ok, that was for the large messages of more than 1 MB, but the new code delivers only 65 MB/s at 600 Kb message size where I got almost 100 MB/s with the old code. Did anyone experience the same behaviour ? I should add that I tested with jumbo frames and /proc/sys/net/core/{r,w}mem_max was set to 1048576 (1 MB) regards, Sebastian Heidl -- From owner-stp@oss.sgi.com Thu May 10 05:36:17 2001 Received: (from majordomo@localhost) by oss.sgi.com (8.11.3/8.11.3) id f4ACaH500664 for stp-outgoing; Thu, 10 May 2001 05:36:17 -0700 Received: from mailer.zib.de (mailer.zib.de [130.73.108.11]) by oss.sgi.com (8.11.3/8.11.3) with ESMTP id f4ACaFF00659 for ; Thu, 10 May 2001 05:36:16 -0700 Received: from mailsrv2.zib.de (mailsrv2 [130.73.121.11]) by mailer.zib.de (8.9.3+Sun/8.9.1) with ESMTP id OAA09682 for ; Thu, 10 May 2001 14:36:13 +0200 (MET DST) Received: from hlr.zib.de (hlr.zib.de [130.73.73.1]) by mailsrv2.zib.de (8.9.3+Sun/8.9.1) with ESMTP id OAA18704 for ; Thu, 10 May 2001 14:36:13 +0200 (MET DST) Received: from csr-pc1.zib.de (csr-pc1.zib.de [130.73.72.59]) by hlr.zib.de (8.9.3+Sun/8.9.1) with ESMTP id OAA03971 for ; Thu, 10 May 2001 14:36:12 +0200 (MET DST) Received: (from heidl@localhost) by csr-pc1.zib.de (8.11.2/8.11.2/SuSE Linux 8.11.1-0.5) id f4ACaAo31230 for stp@oss.sgi.com; Thu, 10 May 2001 14:36:10 +0200 Date: Thu, 10 May 2001 14:36:10 +0200 From: Sebastian Heidl To: stp@oss.sgi.com Subject: egast interface Message-ID: <20010510143610.J25386@csr-pc1.zib.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i X-www.distributed.net: 618 RC5 packets (4278*2^28 keys) [2.17 Mkeys/s] Sender: owner-stp@oss.sgi.com Precedence: bulk Hi, is there any documentation regarding the egast interface provided by the acenic driver ? regards, Sebastian Heidl --