Re: [RFC PATCH] cpufreq: intel_pstate: Change the calculation of next pstate

From: Stratos Karafotis
Date: Tue May 13 2014 - 00:00:06 EST


Hi,

On 12/05/2014 10:34 ÎÎ, Yuyang Du wrote:
> On Mon, May 12, 2014 at 11:30:03PM +0300, Stratos Karafotis wrote:
>> On 09/05/2014 05:56 ÎÎ, Stratos Karafotis wrote:
>>
>> Next performance state = min_perf + (max_perf - min_perf) * load / 100
>>
> Hi,
>
> This formula is fundamentally broken. You need to associate the load with its
> frequency.

Could you please explain why is it broken? I think the load should be
independent from the current frequency.

Thanks,
Stratos
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