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
Reply-To:	dan_nazario AT americancentury DOT com
Subject:	Re: Does Cygwin have a 2GB Memory/RAM limit ?
To:	cygwin AT cygwin DOT com
Message-ID:	<OF2F44579D.4637D5A6-ON86256DCF.0048F9B6@americancentury.com>
From:	Dan_Nazario/ACIM/americancentury AT americancentury DOT com
Date:	Thu, 30 Oct 2003 07:25:18 -0600
MIME-Version:	1.0

Gerrit - thanks for your reply.

In looking at the boot.ini snip, it looks like it is related to the size of
disk partitions being greater than 2GB.

I'm referring to a limit on the RAM/Memory that cygwin appears to impose.
My server has 8GB of RAM, but cygwin sees only 2GB of it according to
vmstat and top commands running in the cygwin bash shell.


Dan Nazario





                                                                                                                                  
                                                                                                                                  
                        "Gerrit P.                                                                                                
                        Haase"                 To:       "Dan_Nazario/ACIM/americancentury AT americancentury DOT com"                   
                        <freeweb AT nyckel         <dan_nazario AT americancentury DOT com>                                                 
                        piga.de>               cc:       cygwin AT cygwin DOT com                                                        
                                               Subject:  Re: Does Cygwin have a 2GB Memory/RAM limit ?                            
                        Sent by:                                                                                                  
                        cygwin-owner AT cy                                                                                           
                        gwin.com                                                                                                  
                                                                                                                                  
                                                                                                                                  
                        10/30/2003                                                                                                
                        06:10 AM                                                                                                  
                        Please respond                                                                                            
                        to "Gerrit P.                                                                                             
                        Haase"                                                                                                    
                                                                                                                                  
                                                                                                                                  
                                                                                                                                  
                                                                                                                                  
                                                                                                                                  




Dan wrote:


> Can anyone else confirm this - that memory above 2GB is not visible to
> cygwin.  Any known work-arounds?

There is a Windows limitation, no application may allocate more then 2GB
unless you specify the right value (e.g. /3GB) in the boot.ini file.

boot.ini example:

[Boot Loader]
Timeout=7
Default=scsi(0)disk(0)rdisk(0)partition(1)\WINNT
[Operating Systems]
scsi(0)disk(0)rdisk(0)partition(1)\WINNT="Windows 2K Server" /3GB
scsi(0)disk(0)rdisk(0)partition(1)\WINNT="Windows 2K Server [VGA-Modus]"
/basevideo /sos


Gerrit
--
=^..^=                                     http://nyckelpiga.de/donate.html


--
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/





--
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 -