> __rdtsc drift isn’t an AMD bug, it’s by design. Yes, I should've emphasized this. > hey probably just got lucky in that the drift always exceeded the time t

> __rdtsc drift isn’t an AMD bug, it’s by design. Yes, I should've emphasized this. > hey probably just got lucky in that the drift always exceeded the time that elapsed between calls on other cpus And this is also true. :D But I would say we were lucky to notice this problem at all because it really doesn't happen on that many CPUs, at least on the ones we tried out.