2 ms·
MMX performance actually regressed somewhat between Haswell and Skylake, and Skylake is when the sharing described in this post was introduced and there might b
by BeeOnRope 6y ago
MMX performance actually regressed somewhat between Haswell and Skylake, and Skylake is when the sharing described in this post was introduced and there might be a connection there.
- reitzensteinm 6y agoRight, but I'm saying that the regression in performance doesn't cause a backwards compatibility issue. You've written some MMX code twenty years ago on a P5 Pentium? It's still going to run 50x faster on a modern CPU.