On Fri, Jun 16, 2017 at 10:50 AM, Andi Kleen <a...@linux.intel.com> wrote: >> > Yeah, I think it is easier and more portable, especially on hardware with a >> > PEBS-like mechanism but no branch buffer (like LBR). FYI, I did do a test >> > implementation yesterday to evaluate the difficulty. >> > >> A more generalized usage of the feature is to evaluate the amount of skid >> for any precise event. > > It should be always the same (one instruction), except for the control flow > change case. > That's on Intel X86. What about the other arch?
> -Andi
