Re: Cygwin Memory Allocation and heap_chunk_in_mb

[Tim Prince <tprince at computer dot org>]

At 06:54 AM 6/30/2004, Dan Hatton wrote:


> I'm using CYGWIN_NT-5.1, under XP Pro.
>
> I've set my heap_chunk_in_mb registry key to a very large value (10240
> decimal,) because I'm doing some RAM-hungry numerical calculations.
>
> I have enough space to do this (Control Panel->System reports 12 GB of
> virtual memory allocated.)
>
> However, the max_memory program at
> <http://www.cygwin.com/ml/cygwin/2003-02/msg00234.html> still reports
> only 1.5 GB available.  Sure enough, my program dies with an "out of
> memory" error at 1.25 GB (the 0.25 GB discrepancy is about right for
> the amount of RAM other processes are using.)
>
> Anyone got any ideas what's happening, please?

cygwin doesn't emulate a 64-bit OS.  Did you try setting up XP with /3GB to 
see whether that would give another 1 GB, or check the archives for any 
reports on such an attempt?


Tim Prince 


--
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/