In the Smalltalk I am porting the solution they use is to just drop the
entire chain and let it
reform. The assumption would be that for any short time period in the
life of a program no sites
are megamorphic. the metric they use is the total amount of active code.
Since they actually
drop all compiled code when it hits 1 meg they have an easy way of
determining the active
code amount.
What I was thinking of was just dropping the gwt chain when it reached
some depth. The
question is what depth. I think I'll add a counter to the call site just
to see what happens.
It would be nice to have a way to walk the chain but I don't see an method
to get the original
mh from a mh adapter.
regards
mark
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