So in some sense very similar to SKX behavior? The first iteration of the instruction implementation requires judicious use of instructions, while later impleme

So in some sense very similar to SKX behavior? The first iteration of the instruction implementation requires judicious use of instructions, while later implementations (this is something to be upset about...those "later implementations" should have been available quite some time ago). This is also ignoring the fact that none of these penalties come into play if you use the AVX512 instructions with 256-bit or 128-bit vectors. (This still has significant benefits due to the much nicer set of shuffles, dedicated mask registers, etc.)