From owner-freebsd-current@FreeBSD.ORG  Thu Mar 11 16:18:19 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 402E216A4CF
	for <freebsd-current@freebsd.org>;
	Thu, 11 Mar 2004 16:18:19 -0800 (PST)
Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu
	[128.208.78.105])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 209BE43D2D
	for <freebsd-current@freebsd.org>;
	Thu, 11 Mar 2004 16:18:19 -0800 (PST)
	(envelope-from sgk@troutmask.apl.washington.edu)
Received: from troutmask.apl.washington.edu (localhost [127.0.0.1])
	i2C0IFrk077252;	Thu, 11 Mar 2004 16:18:15 -0800 (PST)
	(envelope-from sgk@troutmask.apl.washington.edu)
Received: (from sgk@localhost)i2C0IFZu077251;
	Thu, 11 Mar 2004 16:18:15 -0800 (PST)	(envelope-from sgk)
Date: Thu, 11 Mar 2004 16:18:15 -0800
From: Steve Kargl <sgk@troutmask.apl.washington.edu>
To: Craig Rodrigues <rodrigc@crodrigues.org>
Message-ID: <20040312001815.GA77080@troutmask.apl.washington.edu>
References: <XFMail.20040310213645.conrads@cox.net>
	<4050BBCB.50302@cinci.rr.com> <p0600207abc766e01632a@[10.0.1.4]>
	<20040312001110.GA17148@crodrigues.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20040312001110.GA17148@crodrigues.org>
User-Agent: Mutt/1.4.1i
cc: freebsd-current@freebsd.org
Subject: Re: I like SCHED_4BSD
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: Fri, 12 Mar 2004 00:18:19 -0000

On Thu, Mar 11, 2004 at 07:11:10PM -0500, Craig Rodrigues wrote:
> 
> Who is actively working on ULE, getting feedback from users,
> improving ULE, etc.?  I asked some questions about the
> late tool used to evaluate ULE, and at first didn't get any responses,
> but was finally directed to look at: http://www.chesapeake.net/~jroberson/late.tgz

Jeff Roberson is the person working on ULE.  I know he has received
input from jhb and bde.  At one time, Luigi also had an experimental
scheduler.

> I also mentioned on freebsd-arch that the following tool developed
> at University of Utah might be useful for evaluating scheduler performance
> on FreeBSD:
> http://www.cs.utah.edu/~regehr/hourglass/

I looked at the site.  The web page states that hourglass required
linuxthreads on FreeBSD.  You'll probably need to ask Daniel, David,
or Julian (the KSE gang) how difficult it may be to port hourglass
to use KSE and lpthread.

-- 
Steve