There needs to be some elapsed-time testing of the
pid/pgrp filter and, especially, unload compile time
options to guide the user on whether they should be
Logged In: YES
Philippe has some preliminary numbers indicating that we
might as well just enable both these features permanently.
I still need to do some full testing (especially of the
unload code) to see if we can do this (I hope so !)
The overhead appears to be low, so they are unconditionally
enabled for simplicity's sake.