"niced" processes on leopard

[Yen, Wenchieh]

hi,

while some have already embraced snow leopard, I just moved on to leopard.

to my surprise that the old school nice/renice don't seem to work any
more, though ps -l still says that the processes are niced. the
'buildnicevalue' in macports.conf has thus no effect at all.

Perhaps someone can give me a lesson or two about the most "advanced" OS?

cheers,