Pagefile on OS X

[Cross posting this from because of smarter people here. Please delete if inappropriate.]

Does anyone here have any pointers to good info on OS X’s pagefile? It appears that it is all handled by dynamic pager (8), but I’m having a hard time finding info beyond simply moving the pagefile to another disk.

The reason I’m asking is because, in my experience, one can greatly improve paging performance by allocating pagefile space on multiple spindles. As I’ve got a pair of disks in my G5, that’s exactly what I’d like to do.

As it is, it looks like dynamic_pager can only take one argument for the base filename for the pagefile. Hopefully this isn’t the case…