From owner-freebsd-amd64@FreeBSD.ORG Thu May 26 16:12:47 2005 Return-Path: X-Original-To: freebsd-amd64@freebsd.org 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 65EF216A435 for ; Thu, 26 May 2005 16:12:47 +0000 (GMT) (envelope-from mikej@rogers.com) Received: from smtp105.rog.mail.re2.yahoo.com (smtp105.rog.mail.re2.yahoo.com [206.190.36.83]) by mx1.FreeBSD.org (Postfix) with SMTP id 9D95243D6A for ; Thu, 26 May 2005 16:12:41 +0000 (GMT) (envelope-from mikej@rogers.com) Received: from unknown (HELO 172.16.0.1) (mikej@69.193.222.195 with login) by smtp105.rog.mail.re2.yahoo.com with SMTP; 26 May 2005 16:12:41 -0000 Received: from 172.16.0.199 (SquirrelMail authenticated user mikej) by 172.16.0.1 with HTTP; Thu, 26 May 2005 12:12:39 -0400 (EDT) Message-ID: <2302.172.16.0.199.1117123959.squirrel@172.16.0.1> In-Reply-To: <20050526155612.GA38421@xor.obsecurity.org> References: <200505251317.22128.nb_root@videotron.ca> <429514AF.5000306@roq.com> <20050526155612.GA38421@xor.obsecurity.org> Date: Thu, 26 May 2005 12:12:39 -0400 (EDT) From: "Mike Jakubik" To: "Kris Kennaway" User-Agent: SquirrelMail/1.5.1 [CVS] MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: freebsd-amd64@freebsd.org Subject: Re: amd64 optimized gcc? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 May 2005 16:12:47 -0000 On Thu, May 26, 2005 11:56 am, Kris Kennaway said: > On Thu, May 26, 2005 at 10:13:35AM +1000, Michael VInce wrote: >> for warranty to come through on my old one. I did a buildworld under >> 'CPUTYPE=athlon64' in make.conf and 'CFLAGS= >> -O2 -pipe -funroll-loops' for the the kernel. >> I also used both to build all my ports including xorg and KDE. >> > >> All this combined has made my laptop feel a lot faster. >> > > Google for 'placebo effect' :-) Unfortunately, leet optimization flags > do not measurably effect everyday system performance, only specific > CPU-intensive operations. Tell that to the Gentoo people :)