The search for the correct amount of split-lock misery

I wonder if it would be viable to hook this into one of the process priority mechanisms that the kernel has. Surely, it's okay to potentially stall all of the other processors on the system if the process has sufficient priority to preempt any processes that are running on those processors, and gamers could use a new launcher that expresses the fact that they really don't mind if their software builds make little or no progress while they're playing God of War.

It seems like it might be sufficient to just remove the explicit delay; you'd still be heavily penalizing processes that do split-lock operations, but only if there's anything else for them to contend with, so they'd be unaffected if they have a whole computer to themselves.