If you're looking for deterministic timing generally that goes out the window the moment you add caches, at least non-manual ones. Other than timings if you ca

If you're looking for deterministic timing generally that goes out the window the moment you add caches, at least non-manual ones. Other than timings if you can tell the difference between a processor speculatively executing and one that doesn't then there's something seriously wrong, which unfortunately includes xdcbt.