Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267165AbUIPF1P (ORCPT ); Thu, 16 Sep 2004 01:27:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267405AbUIPF1P (ORCPT ); Thu, 16 Sep 2004 01:27:15 -0400 Received: from [142.46.200.198] ([142.46.200.198]:5854 "EHLO ns1.s2io.com") by vger.kernel.org with ESMTP id S267165AbUIPF1M (ORCPT ); Thu, 16 Sep 2004 01:27:12 -0400 Message-Id: <200409160525.i8G5PtqG009228@guinness.s2io.com> From: "Leonid Grossman" To: , "'Jeff Garzik'" Cc: "'David S. Miller'" , , , , Subject: RE: The ultimate TOE design Date: Wed, 15 Sep 2004 22:25:48 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: AcSbiENKKFilyoSbReWBeZCyQiJppwAIlPwg In-Reply-To: <1095296279.1064.80.camel@jzny.localdomain> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Spam-Score: -103.3 X-Spam-Outlook-Score: () X-Spam-Features: BAYES_10,FORGED_MUA_OUTLOOK,IN_REP_TO,MISSING_OUTLOOK_NAME,QUOTED_EMAIL_TEXT,USER_IN_WHITELIST Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1817 Lines: 48 > -----Original Message----- > From: jamal [mailto:hadi@cyberus.ca] > Sent: Wednesday, September 15, 2004 5:58 PM > To: Jeff Garzik > Cc: David S. Miller; alan@lxorguk.ukuu.org.uk; paul@clubi.ie; > netdev@oss.sgi.com; leonid.grossman@s2io.com; > linux-kernel@vger.kernel.org > Subject: Re: The ultimate TOE design > > Jeff, > You are only allowed to start a TOE thread only every six months ;-> > > On a serious note, I think that PCI-express (if it lives upto its > expectation) will demolish dreams of a lot of these TOE investments. > Our problem is NOT the CPU right now (80% idle processing > 450Kpps forwarding). Bus and memory distance/latency are. In servers, both bottlenecks are there - if you look at the cost of TCP and filesystem processing at 10GbE, CPU is a huge problem (and will be for foreseeable future), even for fastest 64-bit systems. I agree though that bus and memory are bigger issues, this is exactly the reason for all these RDMA over Ethernet investments :-) Anyways, did not mean to start an argument - with all the new CPU, bus and HBA technologies coming to the market it will be another 18-24 months before we know what works and what doesn't... Leonid >If > intel would get rid of the big conspiracy in the form of > chipset division and just integrate the MC like AMD is, we'll > be on our our way to kill TOE and a lot of the network > processors (like the IXP). Dang, running Linux is more > exciting than microcoding things to fit into a 2Kword program store. > > I rest my canadiana $.02 > > cheers, > jamal > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/