From owner-freebsd-stable@FreeBSD.ORG Thu Apr 6 15:04:31 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1AE4416A400 for ; Thu, 6 Apr 2006 15:04:31 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from mail.ticketswitch.com (mail.ticketswitch.com [194.200.93.188]) by mx1.FreeBSD.org (Postfix) with ESMTP id ADC1E43D60 for ; Thu, 6 Apr 2006 15:04:26 +0000 (GMT) (envelope-from petefrench@ticketswitch.com) Received: from [172.16.1.6] (helo=dilbert.firstcallgroup.co.uk) by mail.ticketswitch.com with esmtp (Exim 4.52 (FreeBSD)) id 1FRW26-000FOo-1l; Thu, 06 Apr 2006 16:04:26 +0100 Received: from petefrench by dilbert.firstcallgroup.co.uk with local (Exim 4.60 (FreeBSD)) (envelope-from ) id 1FRW25-0004xA-Mm; Thu, 06 Apr 2006 16:04:25 +0100 To: freebsd-stable@freebsd.org, vivek@khera.org In-Reply-To: Message-Id: From: Pete French Date: Thu, 06 Apr 2006 16:04:25 +0100 Cc: Subject: Re: Pros and Cons of amd64 (versus i386). X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Apr 2006 15:04:31 -0000 > Let me comment that my 64-bit commentary about I/O is based on > experience with Opterons, which have excellent I/O bandwidth. The > Intel EM64T boxes do ok, too, but I have no experience with other 64- > bit CPUs. The opterons are just a notch above anything else that > I've used. Ah, O.K. - so they dont necessarily have better I/O bandwidth in 64 bit mode than they do in 32 bit mode then ? I am still quite keen to move to a 64 bit architecture though. I am having problems to get the system to boot SMP, and all the people who ahve told me that they can make it run on the same motherboard are using amd64. cheers, -pcf.