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Subject: Re: Does Cygwin have a 2GB Memory/RAM limit ?
From: "Timothy C Prince" <tprince AT myrealbox DOT com>
To: dan_nazario AT americancentury DOT com
CC: cygwin AT cygwin DOT com
Date: Thu, 30 Oct 2003 00:29:16 +0000
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I don't think you've defined your problem well enough to answer.  Are you running a single thread gcc program which mallocs memory until it fails?  If you have multiple CPUs and run multiple threads or multiple instances of your program, you might be able to use more of the memory.

-----Original Message-----
From: Dan_Nazario/ACIM/americancentury AT americancentury DOT com
To: cygwin AT cygwin DOT com
Date: Wed, 29 Oct 2003 17:40:02 -0600
Subject: Does Cygwin have a 2GB Memory/RAM limit ?

I am trying to run cygwin on a Windows 2003 server with 8GB of ram.

I have set the registry key to inform cygwin the max memory should be 4096 
(4GB).  Checking the registry - I see the value is set to 4096.
(see: http://www.cygwin.com/cygwin-ug-net/setup-maxmem.html)
In spite of this, all indications are that it does not see more than 2GB 
(2097151K) of RAM.  (top and vmstat output)

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

Thanks in advance.

Dan Nazario

P.S.   Cygwin uname info is: CYGWIN_NT-5.2 **server name ** 
1.5.3(0.90/3/2) 2003-09-01 13:15 i686 unknown unknown Cygwin

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Tim Prince

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