From owner-freebsd-net@FreeBSD.ORG Sun May 18 03:49:09 2003 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 943F937B401 for ; Sun, 18 May 2003 03:49:09 -0700 (PDT) Received: from gabrielle.polarcap.org (a.ns.polarcap.org [62.84.209.4]) by mx1.FreeBSD.org (Postfix) with SMTP id E3B1343F75 for ; Sun, 18 May 2003 03:49:07 -0700 (PDT) (envelope-from tsar@polarcap.org) Received: (qmail 30492 invoked from network); 18 May 2003 10:49:28 -0000 Received: from as10-3-1.sbg.s.bonet.se (HELO polarcap.org) (217.215.183.53) by 0 with SMTP; 18 May 2003 10:49:28 -0000 Message-ID: <3EC76521.2010000@polarcap.org> Date: Sun, 18 May 2003 12:49:05 +0200 From: Tony Sarendal User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020529 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Mike Tancsa References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-net@freebsd.org Subject: Re: polling(4) and Gigabit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 May 2003 10:49:10 -0000 Mike Tancsa wrote: > The em driver has polling support in STABLE (post 4.8R). The limitation is > not so much the NIC, but the way the NIC is serviced via interrupts in non > polling modes. There are some very good discussions posted already you can > get via Google on what you can and cant do and what you might expect > performance wise. > OK, I checked the code in 4.8-RELEASE and only found polling in nge. Interrupts I know. I'm trying to answer emails while my 2,5 year daughter is playing with her Brio railroad and my 7 months son is assisting her. Interrupts are almost using up 100% of my time. I've googled and Marc'd quite a bit but I couldn't find any code in the Gig drivers to put the pieces together. /Tony S