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Date:	Thu, 27 Jan 2011 12:53:17 -0600
From:	Brian Ford <Brian DOT Ford AT FlightSafety DOT com>
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Subject:	Re: max memory
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On Mon, 24 Jan 2011, Christopher Faylor wrote:

> On Sun, Jan 23, 2011 at 08:11:52PM -0800, Linda Walsh wrote:
> >Christopher Faylor wrote:
> >> Cygwin only uses as much memory as the OS gives it.  It can't
> >> use a full 2048MB for the heap.
> >----
> >
> >Using the /LARGEADDRESSAWARE flag would allow cygwin to access
> >up to a full 4GB of memory under Win7-64.
> >
> >Wouldn't that give enough to Cygwin to allow it to give more to the
> >heap?
>
> No.

It does give Cygwin more to work with, and it is Cygwin compatible.  But
obviously the heap is still limited by many other address space mappings
(especially DLLs), so getting a full 2 or 4 Gb is not usually possible.

-- 
Brian Ford
Staff Realtime Software Engineer
VITAL - Visual Simulation Systems
FlightSafety International
the best safety device in any aircraft is a well-trained crew...

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