On 14/02/2018 19:20, Chris Wilson wrote:
Quoting Tvrtko Ursulin (2018-02-14 18:50:30)
From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Another re-post of my earlier, now slightly updated work, to expose a DRM client
hierarchy in sysfs in order to enable a top like tool:
So what I don't like about it is that it is a new interface in sysfs. We
already have a PMU interface for statistics and would rather see that
extended than abandoned. If perf can handle new processes coming and
going, surely we can handle new clients? :|
I don't think it means abandoning the PMU, just that I don't see it
suitable for this use case.
Even if we go with adding a PMU task mode, that is a separate thing from
this. It would allow profiling of a single task, but not enumerating and
profiling all clients/tasks from perf/PMU.
Regards,
Tvrtko
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