From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 9 Oct 2002 21:04:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 9 Oct 2002 21:04:47 -0400 Received: from dhcp101-dsl-usw4.w-link.net ([208.161.125.101]:4055 "EHLO grok.yi.org") by vger.kernel.org with ESMTP id ; Wed, 9 Oct 2002 21:04:45 -0400 Message-ID: <3DA4D383.1010006@candelatech.com> Date: Wed, 09 Oct 2002 18:10:27 -0700 From: Ben Greear Organization: Candela Technologies User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2a) Gecko/20020910 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel Subject: tg3 (netgear 302t) performance numbers Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org After placing my Netgear 302t NICs into my SS50 P-IV (1.8Ghz) machine, they seem to work fine. (They had various problems in my AMD machines, but that could all just be coincidence and other, non-related, problems) My test-bed has two of these NICs connected to each other via a cross-over cable. Both NICs are in the same machine... Here are some performance numbers I see: tcp/ip send + receive in user-space: 112Mbps on each port (does not count any packet over-head, and my generator/receiver is not the fastest thing around) pktgen (kernel pkt generator module): 60-byte packets, sending 1kpps in one direction, and maximum possible in the other. Was able to generate 122,000 packets-per-second. (A tulip 10/100 NIC can do 140kpps in this configuration) Average Latency: 22 micro-seconds. 0 dropped packets over 10+ minute run. 1514-byte packets, sending 1kpps in one direction, max possible in the other. 25.8kpps (310Mbps) in the fast direction. Average Latency: 17 miliseconds (127 micro-seconds for the 1kpps direction) 2000 dropped pkts, 5.8 million sent during this test. So, not too bad, probably the 32/33 PCI bus is most of the bottle-neck. The good part is, no errors or other strangnesses were seen with the driver. Enjoy, Ben -- Ben Greear President of Candela Technologies Inc http://www.candelatech.com ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear