From owner-freebsd-stable@FreeBSD.ORG  Fri Sep  3 21:22:18 2010
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 2536E10656B4
	for <freebsd-stable@freebsd.org>; Fri,  3 Sep 2010 21:22:18 +0000 (UTC)
	(envelope-from bruce@cran.org.uk)
Received: from honeysuckle.london.02.net (honeysuckle.london.02.net
	[87.194.255.144])
	by mx1.freebsd.org (Postfix) with ESMTP id A46D08FC13
	for <freebsd-stable@freebsd.org>; Fri,  3 Sep 2010 21:22:17 +0000 (UTC)
Received: from unknown (94.193.93.212) by honeysuckle.london.02.net
	(8.5.124.10) id 4C655360008500B3; Fri, 3 Sep 2010 22:10:43 +0100
Date: Fri, 3 Sep 2010 22:10:00 +0100
From: Bruce Cran <bruce@cran.org.uk>
To: Jeremy Chadwick <freebsd@jdc.parodius.com>
Message-ID: <20100903221000.00001365@unknown>
In-Reply-To: <20100903205010.GA85105@icarus.home.lan>
References: <alpine.BSF.2.00.1009011357050.5858@tribble.ilrt.bris.ac.uk>
	<i5lr29$9ei$1@dough.gmane.org>
	<alpine.BSF.2.00.1009021000110.50312@tribble.ilrt.bris.ac.uk>
	<4C7F7C0F.8080004@icyb.net.ua>
	<alpine.BSF.2.00.1009021133330.5858@tribble.ilrt.bris.ac.uk>
	<4C7F9ACE.80705@bally-wulff.de> <4C814665.3070306@gmail.com>
	<1283544518.26203.33.camel@xenon>
	<20100903205010.GA85105@icarus.home.lan>
X-Mailer: Claws Mail 3.7.4cvs1 (GTK+ 2.16.0; i586-pc-mingw32msvc)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Cc: jan.grant@bristol.ac.uk, freebsd-stable@freebsd.org,
	Jim Bryant <kc5vdj.freebsd@gmail.com>,
	Pizzamiglio <l.pizzamiglio@bally-wulff.de>, Luca,
	Michal Varga <varga.michal@gmail.com>
Subject: Re: Tuning the scheduler? Desktop with a CPU-intensive task becomes
 rapidly unusable.
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 03 Sep 2010 21:22:18 -0000

On Fri, 3 Sep 2010 13:50:10 -0700
Jeremy Chadwick <freebsd@jdc.parodius.com> wrote:

> Just be aware of this problem[1] when using it.  (I've been working
> on a proper fix -- not a hack -- for the problem for about a week now.
> Stress level is very high given the ambiguous nature of many aspects
> of GEOM and libgeom lacking in numerous areas.  So far I've managed to
> figure out how to parse the results from geom_gettree() in attempt to
> replace kern.geom.conftxt...)

I'm hoping to replace most of the geom code in sysinstall for 9.0 - it
needs to parse the output of geom_gettree, use gpart to create
partitions etc. So far I've got code that can parse the existing
partition layout but not much more. Take a look at
user/ae/usr.sbin/sade in svn to see how to interact with geom - ae@ has
been working on adding support for gpt, zfs etc. to sade.

-- 
Bruce Cran