Re: [PATCH 1/3] [kidled]: introduce kidled.

[Peter Zijlstra]

On Wed, 2010-04-14 at 08:41 -0700, Salman Qazi wrote:
> 
> To capture all the quantities for a CPU atomically, they must be read
> on the CPU.  Basically, reading them on that CPU prevents them from
> changing as we read them.
> 
> Also, if the CPU is idle (injected or otherwise), the quantities won't
> get updated. 

Who cares? by the time they reach userspace they've changed anyway.

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