Messages in this thread | | | Date | Tue, 17 Jan 2017 12:53:21 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [RFC PATCH] membarrier: handle nohz_full with expedited thread registration |
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On Tue, Jan 17, 2017 at 04:55:22AM +0100, Frederic Weisbecker wrote:
[ . . . ]
> In fact due to the complexity involved, I have to ask first if we > really need this feature. Typically nohz_full workloads don't want to > be disturbed at all, so do we have real and significant usecases of CPU > isolation workloads that want to be concerned by this membarrier so much > that they can tolerate some random IRQ?
I believe that we need to explore the options for implementing it and to -at- -least- have a patch ready, even if that patch doesn't go upstream immediately.
Thanx, Paul
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