From owner-freebsd-current@FreeBSD.ORG  Tue Jan 27 18:18:44 2004
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 0DD2316A4CE
	for <freebsd-current@freebsd.org>;
	Tue, 27 Jan 2004 18:18:44 -0800 (PST)
Received: from sccrmhc11.comcast.net (sccrmhc11.comcast.net [204.127.202.55])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 93BB543D39
	for <freebsd-current@freebsd.org>;
	Tue, 27 Jan 2004 18:18:29 -0800 (PST)
	(envelope-from slave-mike@slavepix.com)
Received: from duron.rv1.dynip.com
	(c-66-177-119-177.se.client2.attbi.com[66.177.119.177])
	by comcast.net (sccrmhc11) with ESMTP
	id <2004012802182801100jilvhe>; Wed, 28 Jan 2004 02:18:28 +0000
Received: from slavepix.com (localhost [127.0.0.1])
	by duron.rv1.dynip.com (8.12.10/8.12.10) with ESMTP id i0S2IQiJ000907
	for <freebsd-current@freebsd.org>;
	Tue, 27 Jan 2004 21:18:26 -0500 (EST)
	(envelope-from slave-mike@slavepix.com)
Message-ID: <40171BF2.8090903@slavepix.com>
Date: Tue, 27 Jan 2004 21:18:26 -0500
From: slave-mike <slave-mike@slavepix.com>
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031007
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: "'freebsd-current@freebsd.org'" <freebsd-current@freebsd.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Mailman-Approved-At: Wed, 28 Jan 2004 06:12:04 -0800
Subject: 5.x SLOW - How do I speed it up?
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
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: Wed, 28 Jan 2004 02:18:44 -0000

What are all the options one needs to change before doing a 
buildworld/installworld
to make sure all the debugging features are off?


> NOTE TO PEOPLE WHO THINK THAT FreeBSD 5.x IS SLOW:
>         FreeBSD 5.x has many debugging features turned on, in
>         both the kernel and userland.  These features attempt to detect
>         incorrect use of system primitives, and encourage loud failure
>         through extra sanity checking and fail stop semantics.  They
>         also substantially impact system performance.  If you want to
>         do performance measurement, benchmarking, and optimization,
>         you'll want to turn them off.  This includes various WITNESS-
>         related kernel options, INVARIANTS, malloc debugging flags
>         in userland, and various verbose features in the kernel.  Many
>         developers choose to disable these features on build machines
>         to maximize performance.