On Mon, 2005-09-19 at 23:02, liyu wrote:
>
> Let's assume Mn is the total number of non-resident pages in follow
> words.
>
> Nod, 'M=Mh+Mc' and 'Mc+Mn' < 2M are always true.
>
> Have this implied that Mn is alway less than M? I think so.
Yes.
>
> but if "Once the number exceeds M the memory size in number of pages,
> we terminted the test period of the cold page pointed to by HAND-test."
>
> If Mn is alway less than M, when we move to HAND-test?
The algorithm tries to ensure that Mn <= M holds.
Once Mn == M+1 is detected, run HAND-test to bring it
back to Mn == M. That is, only during the transition period,
Mn <= M might not hold, and we make a correction quickly.
So there is no contradiction here.
Song
>
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