Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932323AbWHRCaN (ORCPT ); Thu, 17 Aug 2006 22:30:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932332AbWHRCaN (ORCPT ); Thu, 17 Aug 2006 22:30:13 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:56250 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S932323AbWHRCaL (ORCPT ); Thu, 17 Aug 2006 22:30:11 -0400 Date: Thu, 17 Aug 2006 19:25:38 -0700 (PDT) From: Christoph Lameter To: Andi Kleen cc: Christoph Hellwig , Evgeniy Polyakov , Arnd Bergmann , David Miller , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 1/1] network memory allocator. In-Reply-To: <20060816142557.acccdfcf.ak@suse.de> Message-ID: References: <20060814110359.GA27704@2ka.mipt.ru> <200608152221.22883.arnd@arndb.de> <20060816053545.GB22921@2ka.mipt.ru> <20060816084808.GA7366@infradead.org> <20060816142557.acccdfcf.ak@suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 966 Lines: 22 On Wed, 16 Aug 2006, Andi Kleen wrote: > That's not true on all NUMA systems (that they have a slow interconnect) > I think on x86-64 I would prefer if it was distributed evenly or maybe even > on the CPU who is finally going to process it. > > -Andi "not all NUMA is an Altix" The Altix NUMA interconnect has the same speed as far as I can recall as Hypertransport. It is the distance (real physical cable length) that creates latencies for huge systems. Sadly the Hypertransport is designed to stay on the motherboard. Hypertransport can only be said to be fast because its only used for tinzy winzy systems of a few processors. Are you saying that the design limitations of Hypertransport are an advantage? - 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/