memory management question

[neves@aristotle.ils.nwu.edu (Neves )]

I'm trying to use the Quicktime call "loadmovieintoram".  However when
I try to load movies that are larger than the Mac Heap size I get
really long pauses (many seconds).  My guess is that it is trying to
grab some Lisp Heap space.  How can I eliminate these long pauses?  If
it is the fault of migration from Lisp to Mac Heap I would be very
happy if I could temporarily turn off the Lisp Heap to Mac Heap
migration.

-David