Re: [RFC v1] Tunable sched_mc_power_savings=n

[KOSAKI Motohiro]

Hi

> Advantages:
> 
> * Enterprise workloads on large hardware configurations may need
>   aggressive consolidation strategy
> * Performance impact on server is different from desktop or laptops.
>   Interactivity is less of a concern on large enterprise servers while
>   workload response times and performance per watt is more significant
> * Aggressive power savings even with marginal performance penalty is
>   is a useful tunable for servers since it may provide good
>   performance-per-watt at low utilisation
> * This tunable can influence other parts of scheduler like wakeup
>   biasing for overall task consolidation  

I'd like to know how many saving power.
if there are only small saving, I think this is not interesting feature.

Do you expect how many percentage saving?



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