Dan Sugalski:
# On my part. Here's a way we can dodge the whole neonate, infant 
# mortality nonsense.
# 
# Instead of marking everything dead at the beginning of a DOD run, 
# which'll get us the most aggressive cleanup, we mark things dead at 
# the *end* of the run. Then we also allocate all our headers marked as 
# live on allocation, and make sure there's some minimum number of free 
# headers after the end of a DOD run to make sure we don't collect too 
# soon.
# 
# This'll mean we don't have a neonate problem, though we trade that 
# off with having all headers live through at least one DOD sweep. We 
# can, if we want, have a separate DOD routine that does the mark as 
# dead first (and last) that the explicit DOD trigger op can use so we 
# don't have to worry about things living longer than they should.
# 
# We could call them conservative_DOD and aggressive_DOD or something 
# along those lines, if we wanted.

I could imagine a few pathological cases that would invoke two DOD runs
before we get around to anchoring the original header to the root set.

--Brent Dax <[EMAIL PROTECTED]>
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