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SubjectRE: [PATCH 0/6] x86/cpu hotplug: Wake up offline CPU via mwait or nmi
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On Tue, 2012-06-05 at 16:02 +0000, Yu, Fenghua wrote:
>
> Users can consolidate processes on a few online CPU's and offline the
> rest when workload is light.

No they can't, hotplug is a root only op.

> This consolidation can save more power and have better performance
> than idling CPU's because hot cache in online CPU's and offline CPU's
> can be allocated in same package.

Yeah, or you fix the load-balancer to do this.


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