Quoting Sagar Arun Kamble (2018-03-15 09:23:25)
>
>
> On 3/14/2018 3:07 PM, Chris Wilson wrote:
> > Valleyview and Cherryview update the GPU frequency via the punit, which
> > is very expensive as we have to ensure the cores do not sleep during the
> > comms.
> But the patch 5 applies this
On 3/14/2018 3:07 PM, Chris Wilson wrote:
Valleyview and Cherryview update the GPU frequency via the punit, which
is very expensive as we have to ensure the cores do not sleep during the
comms.
But the patch 5 applies this workaround to only VLV.
If we perform frequent RPS evaluations, the
Valleyview and Cherryview update the GPU frequency via the punit, which
is very expensive as we have to ensure the cores do not sleep during the
comms. If we perform frequent RPS evaluations, the frequent punit
requests cause measurable system overhead for little benefit, so
increase the
