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, 6 Sep 2002 00:19:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 6 Sep 2002 00:19:35 -0400 Received: from pizda.ninka.net ([216.101.162.242]:24706 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id ; Fri, 6 Sep 2002 00:19:34 -0400 Date: Thu, 05 Sep 2002 21:17:03 -0700 (PDT) Message-Id: <20020905.211703.38779558.davem@redhat.com> To: niv@us.ibm.com Cc: hadi@cyberus.ca, tcw@tempest.prismnet.com, linux-kernel@vger.kernel.org, netdev@oss.sgi.com Subject: Re: Early SPECWeb99 results on 2.5.33 with TSO on e1000 From: "David S. Miller" In-Reply-To: <1031286047.3d782d1f27162@imap.linux.ibm.com> References: <1031283490.3d7823228d9ed@imap.linux.ibm.com> <20020905.205842.127265672.davem@redhat.com> <1031286047.3d782d1f27162@imap.linux.ibm.com> X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 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 From: Nivedita Singhvi Date: Thu, 5 Sep 2002 21:20:47 -0700 Sure :). The motivation for seeing the stats though would be to get an idea of how much retransmission/SACK etc activity _is_ occurring during Troy's SpecWeb runs, which would give us an idea of how often we're actually doing segmentation offload, and better idea of how much gain its possible to further get from this(ahem) DMA coalescing :). Some of Troy's early runs had a very large number of packets dropped by the card. One thing to do is make absolutely sure that flow control is enabled and supported by all devices on the link from the client to the test spedweb server. Troy can do you do that for us along with the statistic dumps? Thanks.