Re: [PATCH 2/2] perf/x86/intel: Support PEBS output to PT

[Peter Zijlstra]

On Thu, May 02, 2019 at 01:50:22PM +0300, Alexander Shishkin wrote:
> The output setting is per-CPU, so all PEBS events must be either writing
> to PT or to the DS area, so in order to not mess up the event scheduling,
> we fall back to the latter in case both types of events are scheduled in.

Urgh, that blows... I really don't like that.