From owner-freebsd-questions@FreeBSD.ORG Wed Jan 10 18:36:41 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B25FF16A403 for ; Wed, 10 Jan 2007 18:36:41 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from mxout5.cac.washington.edu (mxout5.cac.washington.edu [140.142.32.135]) by mx1.freebsd.org (Postfix) with ESMTP id 8C9B713C45A for ; Wed, 10 Jan 2007 18:36:41 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from smtp.washington.edu (smtp.washington.edu [140.142.32.139]) by mxout5.cac.washington.edu (8.13.7+UW06.06/8.13.7+UW06.09) with ESMTP id l0AIafBu024720 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 10 Jan 2007 10:36:41 -0800 X-Auth-Received: from [128.208.4.96] (dzihan.cs.washington.edu [128.208.4.96]) (authenticated authid=youshi10) by smtp.washington.edu (8.13.7+UW06.06/8.13.7+UW06.09) with ESMTP id l0AIaeKm001229 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Wed, 10 Jan 2007 10:36:40 -0800 Message-ID: <45A53238.9010606@u.washington.edu> Date: Wed, 10 Jan 2007 10:36:40 -0800 From: Garrett Cooper User-Agent: Thunderbird 1.5.0.8 (X11/20061108) MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: <1439.192.168.125.134.1168359685.squirrel@webmail.dfwlp.org> <200701101004.23651.pieter@degoeje.nl> <45A4E04C.5020902@u.washington.edu> <2831.192.168.125.134.1168443983.squirrel@webmail.dfwlp.org> <499c70c0701100846h60111c35lafea7cd0b7b402c2@mail.gmail.com> <45A52132.60303@u.washington.edu> <499c70c0701100933g395016dasf90f41ef315e7dd7@mail.gmail.com> <45A52AEA.7070008@u.washington.edu> <499c70c0701101027i154d4ca5x941f6b440deb6e30@mail.gmail.com> In-Reply-To: <499c70c0701101027i154d4ca5x941f6b440deb6e30@mail.gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-PMX-Version: 5.2.2.285561, Antispam-Engine: 2.5.0.283055, Antispam-Data: 2007.1.10.102432 X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='__CP_URI_IN_BODY 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0, __USER_AGENT 0' Subject: Re: make.conf and building multiple kernels and worlds X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Jan 2007 18:36:41 -0000 Abdullah Al-Marrie wrote: > On 1/10/07, Garrett Cooper wrote: >> Abdullah Al-Marrie wrote: >> > Mine is EMT64, but I use i386. >> > >> > Could you please tell me why P4 would be better for MySQL server or >> > apache? >> Crap, I can't find the article where Intel was comparing the Opterons to >> the Xeons that I was reading last night. It mentioned what the Intel >> guys used for GCC with -march on a Core 2 Duo system. >> >> However, I did find a Gentoo Wiki page where it says that safe CFLAGS / >> CPUTYPE values for EM64T CPUs is nocona: >> . >> >> The only thing is that they use gcc-3.4 by default as well as gcc-4.1 / >> gcc-4.2, so processor support may be better with the later versions >> of gcc. >> >> -Garrett > > So for i386 I should use prescott, right? prescott should be a safe bet, yes. However, I don't see why nocona support couldn't be used. CPUTYPE in freebsd's make.conf is a "soft alias" to -march, which adds CPU support for the target architecture, but doesn't force the binary to only work in the target architecture IIRC. -Garrett