> >You can't, because the API that would have allowed you to usefully
> >take advantage of VM got screwed up by early application developers
> >who didn't use it, so it was never turned into a real VM system.

> I beg to differ, the end result is much the same and you have explained 
> it well. There were always problems with the third party programs and I 
> guess it could never be a true VM system even if they worked well, they 
> dont.

The problem is that virtually NO software set the PUBLIC and PRIVATE
flags correctly on their memory requests, so you STILL have to
allocate memory out of a big common pool... you can't track and
page private memory for inactive processes because you never know
when some inactive memory might be needed by an active program.


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