From owner-freebsd-threads@FreeBSD.ORG  Tue Jul 15 10:48:47 2003
Return-Path: <owner-freebsd-threads@FreeBSD.ORG>
Delivered-To: freebsd-threads@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id AF2B937B401
	for <freebsd-threads@FreeBSD.ORG>;
	Tue, 15 Jul 2003 10:48:47 -0700 (PDT)
Received: from HAL9000.homeunix.com (ip114.bella-vista.sfo.interquest.net
	[66.199.86.114])
	by mx1.FreeBSD.org (Postfix) with ESMTP id D031D43FBD
	for <freebsd-threads@FreeBSD.ORG>;
	Tue, 15 Jul 2003 10:48:44 -0700 (PDT)	(envelope-from das@FreeBSD.ORG)
Received: from HAL9000.homeunix.com (localhost [127.0.0.1])
	by HAL9000.homeunix.com (8.12.9/8.12.9) with ESMTP id h6FHmTLv037159;
	Tue, 15 Jul 2003 10:48:30 -0700 (PDT)
	(envelope-from das@FreeBSD.ORG)
Received: (from das@localhost)
	by HAL9000.homeunix.com (8.12.9/8.12.9/Submit) id h6FHmSC8037158;
	Tue, 15 Jul 2003 10:48:28 -0700 (PDT)
	(envelope-from das@FreeBSD.ORG)
Date: Tue, 15 Jul 2003 10:48:28 -0700
From: David Schultz <das@FreeBSD.ORG>
To: Terry Lambert <tlambert2@mindspring.com>
Message-ID: <20030715174828.GA37077@HAL9000.homeunix.com>
Mail-Followup-To: Terry Lambert <tlambert2@mindspring.com>,
	Nate Williams <nate@yogotech.com>, freebsd-threads@FreeBSD.ORG,
	'Kai Mosebach' <kai.mosebach@freshx.de>,
	Chris Knight <chris@e-easy.com.au>
References: <007601c3467b$5f20e960$020aa8c0@aims.private>
	<004d01c348ae$583084f0$812a40c1@PETEX31>
	<16146.65087.69689.594109@emerger.yogotech.com>
	<3F13B1B4.8765B8F3@mindspring.com>
	<20030715082910.GA34696@HAL9000.homeunix.com>
	<3F13D2CC.68D9DEC9@mindspring.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <3F13D2CC.68D9DEC9@mindspring.com>
cc: Nate Williams <nate@yogotech.com>
cc: Chris Knight <chris@e-easy.com.au>
cc: 'Kai Mosebach' <kai.mosebach@freshx.de>
cc: freebsd-threads@FreeBSD.ORG
Subject: Re: LinuxThreads replacement
X-BeenThere: freebsd-threads@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Threading on FreeBSD <freebsd-threads.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-threads>,
	<mailto:freebsd-threads-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-threads>
List-Post: <mailto:freebsd-threads@freebsd.org>
List-Help: <mailto:freebsd-threads-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-threads>,
	<mailto:freebsd-threads-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 15 Jul 2003 17:48:48 -0000

On Tue, Jul 15, 2003, Terry Lambert wrote:
> David Schultz wrote:
> > On Tue, Jul 15, 2003, Terry Lambert wrote:
> > > Yes, this is somewhat mitigated by the fact that it's easier to write
> > > threads code than an FSA, such that a lesser coder is still able to
> > > be productive.  As a class, it's a tool I would lump in with things
> > > like "perl".
> > 
> > Actually, event-based programming is usually easier, since it does
> > not require synchronization.  A number of people, myself included,
> > think that threads are overused, and often used incorrectly.  But
> > as Nate pointed out, threads are useful for many purposes, the
> > most fundamental of which are SMP scalability and reduced latency.
> 
> [graphics contexts in OpenGL]
> [restartable system calls]
> [thread contention scope in 1x1]
> [interrupting close(2) with a signal]
> [the Banker's Algorithm]
> [races involving sockets]
> [Mach activations]
> [intention-mode locking]

You have made some interesting points, but are you sure you're
responding to the right thread?  :-P  Perhaps we need to adjust
your contention scope...