>On Thu, Feb 26, 2015 at 08:46:56PM +0530, deepak.s at linux.intel.com wrote:
>> From: Deepak S <deepak.s at linux.intel.com>
>>
>> After feedback from the hardware team, now we set the GPU min freq to RPe.
>> If we drop the freq to RPn, we found that the punit was not setting the
>> voltage to Vnn, So recommendation is to set min freq to RPe.
>And does it change the voltage at all? Is there really any advantage to
>the extra code on idle? Does efficient_freq really consume less power
>than min_freq when active (assuming a min_freq/efficient_freq busy
>workload i.e. does a workload that would be 100% busy at min_freq
>consume less power when run at efficient_freq)?
>-Chris
Power team is reporting ~140mW delta at idle using efficient freq - definitely significant. -
Gavin |
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