That's my point - you need to have tests to profile. I would guess that they had correctness tests. A profile of the tests is only helpful if you know what sho

That's my point - you need to have tests to profile. I would guess that they had correctness tests. A profile of the tests is only helpful if you know what should or should not be there. I've always been of the impression that intel is a company that outsources writing drivers, which would easily lead to devs who are reading documented interface but not actually involved in the hardware design.