From owner-freebsd-hackers@FreeBSD.ORG  Sun Jul 20 14:13:16 2008
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 06BB9106567B;
	Sun, 20 Jul 2008 14:13:16 +0000 (UTC)
	(envelope-from kris@FreeBSD.org)
Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id 1D3D18FC19;
	Sun, 20 Jul 2008 14:13:13 +0000 (UTC)
	(envelope-from kris@FreeBSD.org)
Message-ID: <488347FA.7080103@FreeBSD.org>
Date: Sun, 20 Jul 2008 16:13:14 +0200
From: Kris Kennaway <kris@FreeBSD.org>
User-Agent: Thunderbird 2.0.0.14 (Macintosh/20080421)
MIME-Version: 1.0
To: "Murty, Ravi" <ravi.murty@intel.com>
References: <AEBCFC23C0E40949B10BA2C224FC61B007A3253D@orsmsx416.amr.corp.intel.com>
	<48726193.1080807@FreeBSD.org> <48727E37.30700@delphij.net>
	<487284CA.4050407@FreeBSD.org>
	<AEBCFC23C0E40949B10BA2C224FC61B007C221B9@orsmsx416.amr.corp.intel.com>
	<20080720135900.GA68132@eos.sc1.parodius.com>
	<AEBCFC23C0E40949B10BA2C224FC61B007C221BA@orsmsx416.amr.corp.intel.com>
In-Reply-To: <AEBCFC23C0E40949B10BA2C224FC61B007C221BA@orsmsx416.amr.corp.intel.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-hackers@freebsd.org, Jeremy Chadwick <koitsu@FreeBSD.org>,
	d@delphij.net
Subject: Re: Bug in calcru in he 6.2 and 6.3 kernels
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 20 Jul 2008 14:13:16 -0000

Murty, Ravi wrote:
> Jeremy, thanks. I look forward to switching to ULE in 7.0 and realize
> that it is a completely new scheduler (I spent some time yesterday
> looking at it) -- which is my porting effort is much harder than a
> simple cut and paste. I just wanted to find out if there was something
> simple I could look at before I spent weeks porting my changes to the
> scheduler (also I can justify the move to 7.x). I can't figure out why
> my 8 app threads run so slow -- I am booting the kernel is single user
> mode with not much else running and my threads do a lot of work and
> don't really sleep.

Once again, ULE in 6.x is too broken to use, which is why major changes 
were required to get it to a suitable state in 7.0.  It's a shame that 
you didn't read about this before putting in so much work.

Kris