Re: VM callbacks and VM design

Neil Schemenauer [off-list ref] writes:

[...]

In order to decide which pages are good candidates for freeing
the temporal locality heuristic should be used (ie. pages needed

Why?

recently will also be needed in the near future).  Note that this
is different that "most often used".  I think Rik's latest aging
patch is slightly wrong in this regard.

If you're greping through a large file you don't want to swap out your
processes.

Also, you might like to look at the ideas behind generational garbage
collection; i.e. most objects are used briefly then forgotten about
forever, but those which are still being used after a while will
probably keep on being used.

[...]

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