Xref:	news2.mv.net comp.os.msdos.djgpp:5931
From:	John Sabean <docmani AT eng DOT umd DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	DJGPP - Memory Detect Question
Date:	Thu, 11 Jul 1996 16:10:29 -0400
Organization:	Project GLUE, University of Maryland, College Park, MD
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Message-ID:	<31E55FB5.167EB0E7@eng.umd.edu>
NNTP-Posting-Host:	x-15.umd.edu
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Is there any way to tell how much physical memory is
available under DJGPP. I'm writing a program that scrolls
a large PCX file. I want to buffer as much of the file as
I can in memory. I have the buffer scheme developed, but
I want to make the program allocate these buffers dynamically.
Right now, the program will buffer an arbitrary amount, but
I don't want to unnecessarily put buffers in swap space.
(IE allocate 16 megs of memory on a machine that only has
8 physical megs of memory... why put a file buffer into
a swap file? That would hurt performance....)

So, is there anyway to get a ball park figure of how much
physical memory there is?

(My other options are to force the use of a disk cache
by the user, or to load the whole thing into virtual
memory and let the DPMI software handle the swaping...
Neither option is very appealing to me)


-- 
<docmani AT eng DOT umd DOT edu ------ http://www.glue.umd.edu/~docmani>
"I've always said you can get more with a kind word and a
 2x4 than you can with a kind word alone!"  - Marcus

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