From:	eplmst AT lu DOT erisoft DOT se (Martin Stromberg)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: how can I limit the amount of RAM available to DJGPP-based program
Date:	5 Dec 2000 14:04:36 GMT
Organization:	Ericsson Erisoft AB, Sweden
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Vlad Harchev (hvv AT hippo DOT ru) wrote:
:  I need to test how one program (that uses DJGPP environment) will work when
: certain amount of RAM is available (not some total amount of virtual memory,
: but amount of RAM available). And that amount of RAM is fewer than PC I'm
: going to test it on has. That program needs to operate without using swap
: file. That program can't run under Win*, so I don't have an option of writing
: custom .pif file that limits memory to that amount. That program uses CWSDPMI
: and I would like not to switch to any other DPMI host if possible.

For no virtual memmory you can use CWSDPR0.

:  I use dos that comes with Win95 OSR2. Can himem.sys be used to control
: amount of memory used by DPMI? Or should I just hack CWSDPMI and rebuild it?
: May be somebody can suggest a patch to CWSDPMI (or at least function
: name/filename to hack in)?

:  And IMO it seems that limiting amount of RAM is a general purpose task, so
: support for it can be added to cwsparam.exe/cwsdpmi.exe (or solution added to
: FAQ).

For limiting amount of RAM create a (if you use a sensible RAMDISK) or
several (if you are using WINDOZE RAMDISK) RAMDISK(s) to gobble up
memory.


Right,

						MartinS

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