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From: johnny@edvvie.at (Johann Schweigl)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: Memory usage on the RT.
Message-ID: <151@eliza.edvvie.at>
Date: 14 Sep 89 22:25:06 GMT
References: <1247@quintus.UUCP>
Organization: Edv GesmbH, Austria/Europa
Lines: 28

From article <1247@quintus.UUCP>, by mark@quintus.UUCP (Mark Spotswood):
> Is there any way to find out how much swap space is actually left while running,
> so that I can set the break point to a more reasonable value and avoid being
> killed?

VRM provides the information you want in the data segment of the process.

	.
	.
	.
	volatile int *freePages = (int *)0xbc;
	.
	.
	printf("number of free 2K pages in pagespace is %d\n",*freePages);
	.
	.

The volatile int declaration prevents reads to *freePages from being optimized
away by the -O option.
*freePages is modified by the VRM at unpredictable rates (unpredictable as far
as the application program is concerned).

Hope it helps. Bye,
-- 
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