From owner-freebsd-performance@FreeBSD.ORG  Wed Feb 25 12:33:46 2004
Return-Path: <owner-freebsd-performance@FreeBSD.ORG>
Delivered-To: freebsd-performance@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 5849D16A4CE
	for <freebsd-performance@freebsd.org>;
	Wed, 25 Feb 2004 12:33:46 -0800 (PST)
Received: from rms04.rommon.net (rms04.rommon.net [212.54.2.140])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 4FC9443D2D
	for <freebsd-performance@freebsd.org>;
	Wed, 25 Feb 2004 12:33:45 -0800 (PST)	(envelope-from pete@he.iki.fi)
Received: from he.iki.fi (h81.vuokselantie10.fi [193.64.42.129])
	by rms04.rommon.net (8.12.9p1/8.12.9) with ESMTP id i1PKXXcM025188;
	Wed, 25 Feb 2004 22:33:33 +0200 (EET)
	(envelope-from pete@he.iki.fi)
Message-ID: <403D06AE.8070903@he.iki.fi>
Date: Wed, 25 Feb 2004 22:33:50 +0200
From: Petri Helenius <pete@he.iki.fi>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
	rv:1.6) Gecko/20040113
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Peter Jeremy <peter.jeremy@alcatel.com.au>
References: <20040223192103.59ad7b69.lehmann@ans-netz.de>
	<20040224202652.GA13675@diogenis.ceid.upatras.gr>
	<5410C982-6730-11D8-8D4C-003065ABFD92@mac.com>
	<20040225025953.GH10121@gsmx07.alcatel.com.au> <403C6A24.80804@he.iki.fi>
	<20040225194324.GI10121@gsmx07.alcatel.com.au>
In-Reply-To: <20040225194324.GI10121@gsmx07.alcatel.com.au>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
cc: freebsd-performance@freebsd.org
cc: Charles Swiger <cswiger@mac.com>
Subject: Re: Bad performance on alpha? (make buildworld)
X-BeenThere: freebsd-performance@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Performance/tuning <freebsd-performance.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-performance>,
	<mailto:freebsd-performance-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-performance>
List-Post: <mailto:freebsd-performance@freebsd.org>
List-Help: <mailto:freebsd-performance-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-performance>,
	<mailto:freebsd-performance-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 25 Feb 2004 20:33:46 -0000

Talking about different instruction sets and compiler scheluding 
options. Would it be considered a good idea to introduce a sysctl which 
would contain the maximum mcpu= value for the currently running 
architechture? This way one could provide with multiple executables and 
a startup script, in the fashion of:
prog.i386
prog.pentium2
prog.pentium3
prog.pentium4
prog.athlon-mp
etc...

This would ease utilization of various options and probably excersize 
the CPUs to better extent.

Pete

>  
>