On Tue, 25 Jul 2006, Rik van Riel wrote:
> > Well, I read the whole thing before I replied and I could not figure this
> > one out. Maybe I am too dumb to understand. Could you please explain
> > yourself in more detail
>
> Page state transitions can be very expensive in a virtualized
> environment, so it would be good if we had fewer transitions.
So the hypervisor indeed tracks each individual page state? Note that I do
not propose to change the page state but a counter for page states. I am
bit confused about how not touching a page can cause page state
transitions. But then I do not know much about hypervisors. What magic is
going on in the background that could enable the hypervisor to track
counter increments?
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