PEBS support in hwpmc

[Bjoern A. Zeeb]

On 20 Oct 2017, at 14:24, Ryan Stone wrote:

> 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.

Ruslan is working on Intel PT to my best knowledge.  Cc:ing him so he 
can chime in.

/bz