From owner-freebsd-current@FreeBSD.ORG  Thu Feb 19 00:08:28 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 1AF2C1065672
	for <freebsd-current@freebsd.org>; Thu, 19 Feb 2009 00:08:28 +0000 (UTC)
	(envelope-from pepe@rdc.cl)
Received: from idcmail-mo2no.shaw.ca (idcmail-mo2no.shaw.ca [64.59.134.9])
	by mx1.freebsd.org (Postfix) with ESMTP id E71D08FC0C
	for <freebsd-current@freebsd.org>; Thu, 19 Feb 2009 00:08:27 +0000 (UTC)
	(envelope-from pepe@rdc.cl)
Received: from pd7ml1no-ssvc.prod.shaw.ca ([10.0.153.161])
	by pd7mo1no-svcs.prod.shaw.ca with ESMTP; 18 Feb 2009 17:08:27 -0700
X-Cloudmark-SP-Filtered: true
X-Cloudmark-SP-Result: v=1.0 c=0 a=LRvIzUzL8UvLEWFP9XYA:9
	a=3fdhTVrYpa9uDp88fUPqsAaYaYEA:4 a=rzUpc4uwE_4A:10
Received: from unknown (HELO [192.168.1.203]) ([96.49.96.182])
	by pd7ml1no-dmz.prod.shaw.ca with ESMTP; 18 Feb 2009 17:08:27 -0700
Message-Id: <354CC169-67AB-4913-8546-7D342AE56B40@rdc.cl>
From: Jose Amengual M <pepe@rdc.cl>
To: Steve Kargl <sgk@troutmask.apl.washington.edu>
In-Reply-To: <20090219000514.GA27045@troutmask.apl.washington.edu>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (Apple Message framework v930.3)
Date: Wed, 18 Feb 2009 16:08:26 -0800
References: <B2DDA1E5-5C35-46AA-B901-36189B6614B4@rdc.cl>
	<20090219000514.GA27045@troutmask.apl.washington.edu>
X-Mailer: Apple Mail (2.930.3)
Cc: freebsd-current@freebsd.org
Subject: Re: 7.1 amb64 boot problem after makeworld
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 19 Feb 2009 00:08:28 -0000

tuning ?

just for tune up.

I know that -O3 is not the best choice, but I read that is not harmful.

or I'm wrong ?


On 18-Feb-09, at 4:05 PM, Steve Kargl wrote:

> On Wed, Feb 18, 2009 at 03:18:38PM -0800, Jose Amengual M wrote:
>> CFLAGS=-O3 -pipe -fno-strict-aliasing -funroll-loops
>> COPTFLAGS=-O2 -pipe -funroll-loops -ffast-math
>
> Why?
>
> -- 
> Steve