Re: Basic virtual memory question

From: JF Mezei (jfmezei.spamnot_at_teksavvy.com)
Date: 01/08/05 

Date: Fri, 07 Jan 2005 18:03:47 -0500

Bob Koehler wrote:
> You'ld have to give it the required working set quota and make sure
> WSMAX was at least as big. Then the process could map 200MB even if
> the pagefile free space was less than 200MB.

But isn't WSMAX/WSQUOTA/WSEXTENT a limit of how much virtual memory can be
mapped to physical memory at any point in time ?

If you malloc a chunk of memory and wrote to it, and then need some other
piece, nothing prevents that chunk from being written to the page file to make
room for what you now need, right ?

> page files. Just never let the pagefile run out of free space

Yes, those dreaded one line "page file fragmented" messages on OPA0 that give
you a few seconds to start killing processes to free up memory... But an
enourmous page file prevents those problems.

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