PEBS support in hwpmc

[Ryan Stone]

On Fri, Oct 20, 2017 at 7:27 AM, Bret Ketchum <bcketchum at gmail.com> wrote:
> Without this support (or a VTune subscription) understanding
> Front-End/Back-End bound applications running on Skylake/Kaby Lake
> processors will be difficult at best

I'm afraid that I don't know of any work related to PEBS in hwpmc.
However, I'm curious as to why PEBS is so important on these
architectures.  My experience with hwpmc profiling has been that
callchain information is frequently critical for understanding the
performance characteristics and my understanding is that PEBS by
design cannot capture that information.