> > > > On Skylake/Goldmont the PEBS event contains the TSC and the time stamp > > reported by > > perf should report the time the event was sampled based on that TSC. > > Or is that not working for some reason? > > I guess it is not working like that, but perf tools would probably need > special rules to sort the events because the they would break the rules of > PERF_RECORD_FINISHED_ROUND, wouldn't they?
Yes it may violate finished round. It should not be delayed longer than the next context switch though. The documentation warning would be still correct, but only on Broadwell. -Andi
