I am wondering why this isn't getting more attention.
> It appears that the Ryzen PMU just isn't quite accurate enough :-(. rr
> might work OK for some kinds of usage but I wouldn't recommend it.
>
> I'll land the patches I have with a warning for Ryzen users that things
> won't be reliable.
Can someone with a technical understanding describe what's going on here?
Is this a flat-out bug- or does the x86 architecture spec allow for this?
> It appears that the Ryzen PMU just isn't quite accurate enough :-(. rr > might work OK for some kinds of usage but I wouldn't recommend it. > > I'll land the patches I have with a warning for Ryzen users that things > won't be reliable.
Can someone with a technical understanding describe what's going on here? Is this a flat-out bug- or does the x86 architecture spec allow for this?