[Intel-gfx] [PATCH v6 3/3] drm/i915: Predictive governor to control slice/subslice/eu

Chris Wilson chris at chris-wilson.co.uk
Tue Nov 26 13:21:49 UTC 2019


Quoting Tvrtko Ursulin (2019-11-26 11:31:14)
> 
> On 26/11/2019 11:09, Chris Wilson wrote:
> > Also given Tvrtko's stats, this could all be done from userspace with an
> > extended CONTEXT_PARAM_SSEU, so why would we not do it that way?
> 
> You mean patching and recompiling userspace? I don't think that would 
> work for them.

No. I was thinking about some proof-of-concept userspace daemon using
per-context stats and tuning each context from a timer. Almost exactly
as proposed here, but it would be very nice validation that our kernel
API are not getting in the way of userspace creativity. :)

But who am I to talk, I think C is a scripting language ;)
-Chris


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