From owner-freebsd-amd64@FreeBSD.ORG Mon May 23 05:22:17 2005 Return-Path: X-Original-To: freebsd-amd64@freebsd.org Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3E55216A41C; Mon, 23 May 2005 05:22:17 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.NUXI.org (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8D28043D1D; Mon, 23 May 2005 05:22:16 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.NUXI.org (obrien@localhost [127.0.0.1]) by dragon.NUXI.org (8.13.3/8.13.3) with ESMTP id j4N5MD4j065582; Sun, 22 May 2005 22:22:13 -0700 (PDT) (envelope-from obrien@dragon.NUXI.org) Received: (from obrien@localhost) by dragon.NUXI.org (8.13.3/8.13.1/Submit) id j4N5MB2P065581; Sun, 22 May 2005 22:22:11 -0700 (PDT) (envelope-from obrien) Date: Sun, 22 May 2005 22:22:11 -0700 From: "David O'Brien" To: Jung-uk Kim Message-ID: <20050523052211.GA65514@dragon.NUXI.org> Mail-Followup-To: obrien@freebsd.org, Jung-uk Kim , freebsd-arch@freebsd.org, rwatson@freebsd.org, freebsd-amd64@freebsd.org References: <200505191431.08189.jkim@niksun.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200505191431.08189.jkim@niksun.com> X-Operating-System: FreeBSD 6.0-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 User-Agent: Mutt/1.5.9i Cc: rwatson@freebsd.org, freebsd-amd64@freebsd.org, freebsd-arch@freebsd.org Subject: Re: AMD64 NUMA-awareness? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: obrien@freebsd.org List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 May 2005 05:22:17 -0000 On Thu, May 19, 2005 at 02:31:08PM -0400, Jung-uk Kim wrote: > I am not sure about the meaning of 'true NUMA capable machines' but > AMD64 is ccNUMA unless I am completely mistaken, and FreeBSD/amd64 is > well-supported. Even multicore processors are available now ..snip.. I am working on extracting the CPU & memory topology on AMD Opteron machines. For Athlon64 X2 (dual-core) there is nothing for FreeBSD to do differently than today. Once I have the ability to nicely express the topology on an Opteron system, there are two heavy hitters that have said they will consume the bits and work on optimizing FreeBSD for Opteron systems. For Intel dual-core HTT systems, there aren't any NUMA characteristics I'm aware of. -- -- David (obrien@FreeBSD.org)