Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
From:	mathias DOT wagner AT philips DOT com
To:	cygwin AT cygwin DOT com
Subject:	two instances of a.exe on dual processor - still only 50% performance
MIME-Version:	1.0
Message-ID:	<OF0F3D760E.A74819D2-ONC1256EC9.0063E10C-C1256EC9.00648857@philips.com>
Date:	Tue, 6 Jul 2004 20:16:32 +0200

Hi guys,

I've tried to plough through your archives on dual processors and somebody 
said that when you've got a dual processor machine, one has to start two 
instances of one's program to get both processors working - one on each 
job. Fine, this is what I used to do on a DEC Apha, but on my Windows box 
this does not seem to be the case. I still get only 50% out of the box 
when checking with taskmgr... What am I doing wrong? Do I need to write 
"multi-threaded", whatever that is? Doesn't seem to make much sense to me. 
Two perfectly independent jobs should run just fine along each other, 
using both CPUs to the maximum...

Many thanks for any help!

Mathias

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -