From owner-freebsd-amd64@FreeBSD.ORG Thu May 27 19:34:34 2004 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 AF34816A4CE for ; Thu, 27 May 2004 19:34:34 -0700 (PDT) Received: from host142.ipowerweb.com (host142.ipowerweb.com [66.235.193.61]) by mx1.FreeBSD.org (Postfix) with SMTP id 7525743D3F for ; Thu, 27 May 2004 19:34:34 -0700 (PDT) (envelope-from thejemre@thejemreport.com) Received: (qmail 63622 invoked from network); 28 May 2004 02:34:14 -0000 Received: from unknown (HELO ?192.168.0.163?) (66.67.130.234) by 0 with SMTP; 28 May 2004 02:34:14 -0000 Message-ID: <40B6A4B9.7050100@thejemreport.com> Date: Thu, 27 May 2004 22:32:25 -0400 From: Jem Matzan User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7) Gecko/20040520 X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-amd64@freebsd.org References: <40B6A3EC.2030202@roarmouse.org> In-Reply-To: <40B6A3EC.2030202@roarmouse.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: CPUTYPE for 32-bit mode? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 May 2004 02:34:34 -0000 Andrew Houghton wrote: > Not necessarily the best place to ask this question, but.. > What, if any, CPUTYPE setting in /etc/make.conf makes sense for an > opteron running in i386 mode? I'm not sure how much tuning GCC 3.3.3 > actually provides when fiddling with things like this, so maybe it > doesn't matter. I would use k8 or opteron, but neither are listed as > options in /usr/share/examples/etc/make.conf. athlon-xp and athlon-4 > seem the next best bet, with (I think) athlon-4 edging out athlon-xp > due to support for SSE2 instruction sets. > > Should I even bother with this? > > - a. > _______________________________________________ > freebsd-amd64@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > To unsubscribe, send any mail to "freebsd-amd64-unsubscribe@freebsd.org" > > athlon-xp will definitely work. But since the AMD64 architecture uses SSE2 and MMX instructions, you could also use p4. There might be a problem that I'm not seeing by using the p4 type, but in theory it should work perfectly. -Jem