I posted a related topic in the enhancements area, but it could arguably be a bug as well.

I enabled dynamic publishing of the archive pages on a very busy site, TalkLeft.com, but as soon as the traffic started picking up during the day, the entire server was brought to its knees because of the number of concurrent processes being spawned by MovableType. It became so severe that daemons for mail and FTP began shutting down. It basically crashed the server.

I don't think it's possible, even on a site as busy as TL, that 500 people were looking at archive pages all at once, so that leads me to believe that MT must be leaking connection handles or something. Unfortunately because the server is remote and I don't have shell access it's tough for me to profile it and nail down what the real problem is. How much load testing has been done on the dynamic publishing feature, and is there some way I can help out in that regard?