On Thursday 26 February 2015 09:38 PM, Chris Wilson wrote:
On Thu, Feb 26, 2015 at 08:46:57PM +0530, deepak.s@xxxxxxxxxxxxxxx wrote:
From: Deepak S <deepak.s@xxxxxxxxxxxxxxx>
In normal cases, RC6 promotion timer is 1700us/500us. This will
result in more time spent in C1 state. For more residency in C6
in case of media workloads, this is changed to 250us.
Not doing this for 3D workloads as too many C6-C0 transition
delays can result in performance impact
I would prefer it if you extended intel_mark_busy() to note the source of
work, and so extended the busy/idle tracking per-ring with the
appropriate hooks for vlv to modify RPS, like how we already do for the
general gen6_rps_busy and gen6_rps_idle.
-Chris
Thanks Chris. Its better to use existing Framework
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