Re: [PATCH] drm/i915: Use a high priority wq for nonblocking plane updates

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Quoting Ville Syrjala (2019-09-10 13:13:47)
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> system_unbound_wq can't keep up sometimes and we get dropped frames.
> Switch to a high priority variant.
> 
> Reported-by: Heinrich Fink <heinrich.fink@xxxxxxxxx>
> Tested-by: Heinrich Fink <heinrich.fink@xxxxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

I guess we might be talking about adding a WQ_RTPRI next. Doesn't
actually look that difficult to do, if there's a userspace demand (as
we would need to justify why our interactive task deserved to be such
high priority).
-Chris
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