Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/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
Date:	Mon, 22 Mar 2004 09:31:48 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	Cygwin <cygwin AT cygwin DOT com>
Subject:	Re: Possible over allocation of memory resources by cygwin
Message-ID:	<20040322083148.GC17229@cygbert.vinschen.de>
Reply-To:	cygwin AT cygwin DOT com
Mail-Followup-To:	Cygwin <cygwin AT cygwin DOT com>
References:	<405E0B72 DOT 9000501 AT gamma-rs DOT ch>
Mime-Version:	1.0
In-Reply-To:	<405E0B72.9000501@gamma-rs.ch>
User-Agent:	Mutt/1.4.2i

On Mar 21 22:38, Charles L. Werner wrote:
> On both the Linux machine and Cygwin, top shows about 132 MB of space 
> needed, however,
> the  task manager shows an additional commit jumping from 196 to 483 MB 
> when the program starts.

Not enough information.  I created this exciting test application:

 #include <stdio.h>

 char i[132*1024*1024];

 int main ()
 {
   getchar();
   return 0;
 }

and started it under 1.5.9, casuing the commit charge going from 189 to
322 MB.  So what?  See http://cygwin.com/problems.html

> Not only that, but the program runs about 3 times slower. (1500 sec vs 500 
> sec(Linux)).

Cygwin is emulating POSIX on top of Windows.  You'd expect some slowdown
for the overhead.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

--
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 -