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Re: Shared Memory in Windows [message #48239 is a reply to message #48225]

Tue, 04 April 2006 18:00

Michael Wallace
Messages: 409
Registered: December 2003

Senior Member

The Windows pagefile is just an area of hard drive space, nothing more,
nothing less. The documentation appears to indicate that your options
are to either use the system pagefile or a memory mapped file on disk.
While the pagefile is just "an area of hard drive space" it has probably
been optimized, of course I could be wrong -- this is Windows we're
talking about. ;-) The optimizations of the pagefile will make it
perform better than just using a regular memory mapped file, but worse
than RAM.

I don't know how the CreateFileMapping() system call works, so I can't
say if it tries to do something with RAM before using the pagefile or
not. But seeing as how this is your only option, go with it and see how
it performs. The first rule of performance tuning is to only tune when
you have to. Try it out -- you may find that the pagefile works fast
enough for your needs.

-Mike

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[Message index]

		Re: Shared Memory in Windows By: Robbie on Wed, 05 April 2006 19:11
		Re: Shared Memory in Windows By: Marc Reinig on Wed, 05 April 2006 15:11
		Re: Shared Memory in Windows By: Michael Wallace on Tue, 04 April 2006 18:00

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