From owner-freebsd-amd64@FreeBSD.ORG Sun Feb 6 00:35:50 2005 Return-Path: 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 F18B516A4CE for ; Sun, 6 Feb 2005 00:35:50 +0000 (GMT) Received: from dragon.nuxi.com (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id AA5D643D3F for ; Sun, 6 Feb 2005 00:35:50 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.nuxi.com (obrien@localhost [127.0.0.1]) by dragon.nuxi.com (8.13.1/8.13.1) with ESMTP id j160ZjxM012655; Sat, 5 Feb 2005 16:35:45 -0800 (PST) (envelope-from obrien@dragon.nuxi.com) Received: (from obrien@localhost) by dragon.nuxi.com (8.13.1/8.13.1/Submit) id j160ZjhU012654; Sat, 5 Feb 2005 16:35:45 -0800 (PST) (envelope-from obrien) Date: Sat, 5 Feb 2005 16:35:45 -0800 From: "David O'Brien" To: Sten Spans , freebsd-amd64@freebsd.org Message-ID: <20050206003545.GK9350@dragon.nuxi.com> References: <20050122141741.9690.qmail@web26804.mail.ukl.yahoo.com> <41F31836.2010403@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <41F31836.2010403@freebsd.org> User-Agent: Mutt/1.4.1i 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 Subject: Re: Would this system work correctly with FreeBSD 5.3 ? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: freebsd-amd64@freebsd.org List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Feb 2005 00:35:51 -0000 On Sat, Jan 22, 2005 at 08:21:26PM -0700, Scott Long wrote: > Sten Spans wrote: > >- HTT: > > Amd is indeed working on dual core cpu's, > > samples are rumoured to be out there. > > But there are rumours of heat issues and/or > > socket changes. I guess we'll see later this > > year. There are no heat issues, and the pin-out is identical to single-core Opteron CPU's -- 940-pin. Dual-core CPU's work just fine in AMD's Quad reference machine. > >- Quad motherboards: > > It's a shame that tyan connects all > > the pci interfaces on their quad motherboard > > to one cpu. The hp/compaq quad proliant has > > seperate buses to two cpu's for extra bandwith. .. > Also, I don't believe that PCI buses are connected to CPUs > at all. They are connected via HT-PCI bridges that act as > normal HT peers. Only memory is connected directly to the CPU. What he is saying is that Tyan put all the PCI-X & PCI controllers on a single HT "chain" off of the BSP. A better design, such as the HP DL585, connects its PCI-X controllers spread out over two CPU's (using HT links). -- -- David (obrien@FreeBSD.org)