Re: [PATCH 0/6] Optimize the cpu hotplug locking -v2

[Peter Zijlstra]

On Thu, Oct 10, 2013 at 10:13:53AM -0700, Paul E. McKenney wrote:
> That does add quite a bit of latency to the hotplug operations, which
> IIRC slows down things like boot, suspend, and resume.

Guess what suspend does before it unplugs all these cpus?
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