From owner-freebsd-current@FreeBSD.ORG Tue May 31 14:42:45 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8EE1F16A41C; Tue, 31 May 2005 14:42:45 +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 463BA43D48; Tue, 31 May 2005 14:42:45 +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 j4VEgfAf080483; Tue, 31 May 2005 07:42:41 -0700 (PDT) (envelope-from obrien@dragon.NUXI.org) Received: (from obrien@localhost) by dragon.NUXI.org (8.13.3/8.13.1/Submit) id j4VEgfgU080482; Tue, 31 May 2005 07:42:41 -0700 (PDT) (envelope-from obrien) Date: Tue, 31 May 2005 07:42:40 -0700 From: "David O'Brien" To: Andre Guibert de Bruet Message-ID: <20050531144240.GE9158@dragon.NUXI.org> Mail-Followup-To: freebsd-amd64@freebsd.org, Andre Guibert de Bruet , Roland Smith , "Jack L." , freebsd-current@freebsd.org References: <20050529080029.687192B2B86@ws5-7.us4.outblaze.com> <20050529081442.GA99205@slackbox.xs4all.nl> <20050530235253.W69811@lexi.siliconlandmark.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050530235253.W69811@lexi.siliconlandmark.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: Roland Smith , "Jack L." , freebsd-amd64@freebsd.org, freebsd-current@freebsd.org Subject: Re: Intel EM64T Processor Platform X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-amd64@freebsd.org List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 May 2005 14:42:45 -0000 On Tue, May 31, 2005 at 12:00:44AM -0400, Andre Guibert de Bruet wrote: > On Sun, 29 May 2005, Roland Smith wrote: > >On Sun, May 29, 2005 at 12:00:29AM -0800, Jack L. wrote: > >> > >>What cpu type should I use for make.conf and the kernel if I want to > >>use the AMD64 platform? > > > >You do not need to have anything special in make.conf, and the GENERIC > >kernel for amd64 contains the necessary 'machine' and 'cpu' paramaters. > > This is not entirely correct. Sure, your system will run without anything > special in make.conf; But if you want decent performance, you probably > want to set CPUTYPE to "nocona" in order to get a build that is tailored > to your cpu (SSE3, etc). More information on what that CPUTYPE enables is > available in /usr/share/mk/bsd.cpu.mk. You're saying that one doesn't get decent performance on a Nocona with stock GCC code generation? While one may get noticeably better performance with CPUTYPE=nocona, I doubt it is a huge difference. What I'm saying is, I sure one will have decent performance with a stock FreeBSD/amd64 install. -- -- David (obrien@FreeBSD.org)