Messages in this thread | | | Subject | Re: [PATCH 1/3] [kidled]: introduce kidled. | From | Peter Zijlstra <> | Date | Thu, 15 Apr 2010 09:46:51 +0200 |
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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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