Peter,
It is much more convinient for you to make a test,
(just change the last function in DBmirror.pl), than for me
(grab whitebeam, compile for FreeBSD, etc...)
Of course you would need to use the original .conf format
than the one you are using now.
It would be interesting to see some numbers.
P.S.
Please include my address explicitly, pgsql-general comes
to me in digest mode.
--
-Achilleus