Messages in this thread | | | Subject | Re: [PATCH 0/6] x86/cpu hotplug: Wake up offline CPU via mwait or nmi | From | Peter Zijlstra <> | Date | Wed, 06 Jun 2012 10:43:43 +0200 |
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On Tue, 2012-06-05 at 15:12 -0700, Paul E. McKenney wrote: > > What I can't see is the isolated functional, aside from the above > > mentioned things, that's not strictly a per-cpu property, we can have a > > group that's isolated from the rest but not from each other. > > I suspect that Thomas is thinking that the CPU is so idle that it no > longer has to participate in TLB invalidation or RCU. (Thomas will > correct me if I am confused.) But Peter, is that the level of idle > you are thinking of?
No, we're talking about isolated, so its very much running something.
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