From owner-freebsd-questions  Thu Jan 20  9:38:47 2000
Delivered-To: freebsd-questions@freebsd.org
Received: from skygod.cns.ksu.edu (skygod.cns.ksu.edu [129.130.61.25])
	by hub.freebsd.org (Postfix) with ESMTP id 0BF5614C37
	for <freebsd-questions@freebsd.org>; Thu, 20 Jan 2000 09:38:43 -0800 (PST)
	(envelope-from beemern@ksu.edu)
Received: from ksu.edu ([129.130.61.24])
	by skygod.cns.ksu.edu (8.9.2/8.9.2) with ESMTP id MAA19918
	for <freebsd-questions@freebsd.org>; Thu, 20 Jan 2000 12:10:43 -0600 (CST)
	(envelope-from beemern@ksu.edu)
Message-ID: <38874884.B6CA4A21@ksu.edu>
Date: Thu, 20 Jan 2000 11:40:20 -0600
From: nathan <beemern@ksu.edu>
X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 3.3-RELEASE i386)
X-Accept-Language: en
MIME-Version: 1.0
To: freebsd-questions@freebsd.org
Subject: Re: kernel threads
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

hmmm
i've been playing a bit with threads.  I'm running 3.3-RELEASE + SMP
(dual
pIII/450's)
anyway... i didn't mess with installing the linux_threads port
i noticed that there already is a pthread.h header file on my system
i was looking at the Parallel Processing HOWTO from the LDP (linux
documentation project)
i compiled and ran their sample code for computing Pi (the linear
version)
and THEN i dl'd /compiled/ ran the pthread version of computing Pi by
doing a

gcc -pthread file.c

it compiled right away and ran fine.

comparing "time" between the two binaries, i got a 16% increase in speed
using
the pthread version versus the linear version.

my question... what does all this mean as it relates to this thread? (no
pun
intended)
i ran across something somewhere where the linux_threads port was
outdated, or
already included in the 3.x versions..

just curious as to what all this means, as the code source was from a
Linux
HOWTO.

thanks!

Scott Hess wrote:

> As far as I can tell it doesn't even _compile_ under 3.x, much less
run,
> with or without SMP.
>
> Later,
> scott





To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message