Re: [RFC PATCH] PM: Introduce generic DVFS framework with device-specific OPPs

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On Wed, Apr 27, 2011 at 5:54 AM, Greg KH <gregkh@xxxxxxx> wrote:
> On Tue, Apr 26, 2011 at 10:45:18PM +0800, Jiejing.Zhang Âwrote:
>> Hi Greg,
>>
>> I think DVFS here means âDynamic voltage and frequency scalingâ, refering the
>> first google's result:
>
> Ok, if so, please spell it out.

Yes, will do so.

>
> Also, don't use 'dvfs' as a prefix in the kernel, too many other people
> will think it is a filesystem. ÂHow about "dynvolt"?
>
> Or anything else, just no 'fs' in the name otherwise confusion will
> reign.

Um... ok... I'll avoid using fs as postfix and think about the name again.
"oppfreq", "devfreq", "dvfscale", "oppscale", "devscale", "ddp
(dynamic device power)", or "dfvs" (switched frequency and voltage to
avoid confusion with file systems).

>
>> a dynamic voltage and frequency scaling (DVFS) *technique that minimizes the
>> total system energy consumption for performing a task while satisfying
>> a given execution time constraint. We first show that in order to
>> guarantee minimum energy for task execution by using DVFS it is
>> essential to divide the system power into active and standby power
>> components. Next, we present a new DVFS technique, which considers not
>> only the active power, but also the standby component of the system
>> power.
>
> Please put this in the changelog entry, you need to explain it to those
> of us who have never seen it.

Sure. I'll do that.

>
> thanks,
>
> greg k-h
> _______________________________________________
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Cheers!

- MyungJoo
-- 
MyungJoo Ham (íëì), Ph.D.
Mobile Software Platform Lab,
Digital Media and Communications (DMC) Business
Samsung Electronics
cell: 82-10-6714-2858
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