From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270383AbTHBWOU (ORCPT ); Sat, 2 Aug 2003 18:14:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270385AbTHBWOU (ORCPT ); Sat, 2 Aug 2003 18:14:20 -0400 Received: from almesberger.net ([63.105.73.239]:54541 "EHLO host.almesberger.net") by vger.kernel.org with ESMTP id S270383AbTHBWOT (ORCPT ); Sat, 2 Aug 2003 18:14:19 -0400 Date: Sat, 2 Aug 2003 19:14:11 -0300 From: Werner Almesberger To: Alan Cox Cc: netdev@oss.sgi.com, Linux Kernel Mailing List Subject: Re: TOE brain dump Message-ID: <20030802191411.H5798@almesberger.net> References: <20030802140444.E5798@almesberger.net> <1059857864.20305.14.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1059857864.20305.14.camel@dhcp22.swansea.linux.org.uk>; from alan@lxorguk.ukuu.org.uk on Sat, Aug 02, 2003 at 09:57:44PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Alan Cox wrote: > It moves the cost it doesnt make it vanish I don't think it really can. What it can do is reduce the overhead (which usually translates to latency and burstiness) and the sharing. > If I read you right you are arguing for a second processor running > Linux.with its own independant memory bus. AMD make those already its > called AMD64. I don't know anyone thinking at that level about > partitioning one as an I/O processor. That's taking this idea to an extreme, yes. I'd think of using something as big as an amd64 for this as "too expensive", but perhaps it's cheap enough in the long run, compared to some "optimized" design. It would certainly have the advantage of already solving various consistency and compatibility issues. (That is, if your host CPUs is/are also amd64.) - Werner -- _________________________________________________________________________ / Werner Almesberger, Buenos Aires, Argentina werner@almesberger.net / /_http://www.almesberger.net/____________________________________________/