From ilug-admin@linux.ie  Tue Aug 20 11:52:54 2002
Return-Path: <ilug-admin@linux.ie>
Delivered-To: yyyy@localhost.netnoteinc.com
Received: from localhost (localhost [127.0.0.1])
	by phobos.labs.netnoteinc.com (Postfix) with ESMTP id 1149343C51
	for <jm@localhost>; Tue, 20 Aug 2002 06:51:53 -0400 (EDT)
Received: from phobos [127.0.0.1]
	by localhost with IMAP (fetchmail-5.9.0)
	for jm@localhost (single-drop); Tue, 20 Aug 2002 11:51:53 +0100 (IST)
Received: from lugh.tuatha.org (root@lugh.tuatha.org [194.125.145.45]) by
    dogma.slashnull.org (8.11.6/8.11.6) with ESMTP id g7K9kbZ00671 for
    <jm-ilug@jmason.org>; Tue, 20 Aug 2002 10:46:37 +0100
Received: from lugh (root@localhost [127.0.0.1]) by lugh.tuatha.org
    (8.9.3/8.9.3) with ESMTP id KAA26161; Tue, 20 Aug 2002 10:45:41 +0100
Received: from kbs01.kbs.ie ([213.190.156.48]) by lugh.tuatha.org
    (8.9.3/8.9.3) with ESMTP id KAA26137 for <ilug@linux.ie>; Tue,
    20 Aug 2002 10:45:35 +0100
X-Authentication-Warning: lugh.tuatha.org: Host [213.190.156.48] claimed
    to be kbs01.kbs.ie
Received: by KBS01 with Internet Mail Service (5.5.2653.19) id <R2N9AKJN>;
    Tue, 20 Aug 2002 11:02:33 +0100
Message-Id: <55DA5264CE16D41186F600D0B74D6B09247297@KBS01>
From: "Brian O'Donoghue" <Brian.ODonoghue@kbs.ie>
To: "'ilug@linux.ie'" <ilug@linux.ie>
Subject: RE: [ILUG] linux pthreads problem
Date: Tue, 20 Aug 2002 11:02:32 +0100
MIME-Version: 1.0
X-Mailer: Internet Mail Service (5.5.2653.19)
Content-Type: text/plain; charset="iso-8859-1"
Sender: ilug-admin@linux.ie
Errors-To: ilug-admin@linux.ie
X-Mailman-Version: 1.1
Precedence: bulk
List-Id: Irish Linux Users' Group <ilug.linux.ie>
X-Beenthere: ilug@linux.ie



> -----Original Message-----
> From: Vincent Cunniffe [mailto:vincent@cunniffe.net]
> Sent: 20 August 2002 10:43
> To: ilug
> Subject: Re: [ILUG] linux pthreads problem
> 
> Padraig Brady wrote:
> > Vincent Cunniffe wrote:
> >
> >>
> >> Possibly. However, the amount of memory in use is stupid :
> >>
> >> I start 50 threads, and the memory usage goes up to 411436 VSZ/840 RSS.
> >>
> >> Then I stop those threads, and the usage stays there. I start another
> 50
> >> threads, and the usage goes up to 821036 VSZ/1040 RSS. So, it's neither
> >> freeing the resources correctly nor reusing them :-/
> >>
> >> I've found several other people seeing the same VSZ issue with
> pthreads,
> >> spread over a long time, but no solution as yet.
> >
> >
> > Err, Is your code fixed now?
> > You need a seperate pthread_t per thread.
> 
> I've tested it with and without separate pthread_t's, and the problem is
> identical, unfortunately.
> 
> Regards,
> 
> Vin
> 
> 
> --
> Irish Linux Users' Group: ilug@linux.ie
> http://www.linux.ie/mailman/listinfo/ilug for (un)subscription
> information.
> List maintainer: listmaster@linux.ie

Are you using pthread_join(somethread,0);
When you are closing off your instanciated thread made from
pthread_t*somethread ?



-- 
Irish Linux Users' Group: ilug@linux.ie
http://www.linux.ie/mailman/listinfo/ilug for (un)subscription information.
List maintainer: listmaster@linux.ie

