Re: [RFC v1] Tunable sched_mc_power_savings=n

[David Collier-Brown]

Vaidyanathan Srinivasan wrote:
> I am trying to find answer to the question: Should we have the power
> saving tunable as 'nice' value per process or system wide?
>
> How should we interpret the POWER parameter in a datacenter with power
> constraint as mentioned in this thread?  Or in a simple case of AC vs
> battery in a laptop.

I agree with Tim re setting them all independently, and suggest that 
they're all really per-process values: setting power saving 
system-wide is meaningful, but so are individual settings.
There is therefor an argument for making them subsets of
a higher-level nice program.

Mind you, the order in which one *implements* the capability,
and whether one does powernice first and adds it to nice later
is your call!  I have no idea of how hard what I suggested is (;-))

--dave
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David Collier-Brown            | Always do right. This will gratify
Sun Microsystems, Toronto      | some people and astonish the rest
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