There's been a lot of chat about affinity masks of late, and how we should set them, what values to use etc.
What doesn't seem to have been answered (at least not fully) is a step back from that - should we have hyperthreading turned on or off in the first instance? Can P3D make use of the additional cores, or does the overhead (which there must be, at least in terms of scheduling) mean that it's more trouble than it's worth? Does it differ between people's individual setups?