approachES to NUMA scheduling?

> It depends entirely on what you are programming.
Exactly, and thus there might be just no real point in tyring to get *the* approach implemented when there might be at least two of them feasible and readily available, either as a kernels or (preferably but probably less realistic) as a runtime knob.

As you wrote, those who are there for performance would rather invest some more time in libraries and apps which tend to be custom or customizable; and those who won't or can't could at least pay with their RAM and cycles for some generic service.