[Zope] memory usage

[R. David Murray]

I take that last bit back: when I first (re)start it, Zope uses about
32MB, both size and resident set.

So where is the extra 60MB (actually 140MB) coming from if it isn't
from the cached objects?

manage_debug reported 200 some odd ExtensionClass objects as the
top refcount shortly after the cache was cleared.

--RDM