On Fri, Aug 01, 2014 at 04:59:35AM +0200, Mike Galbraith wrote:
> On Thu, 2014-07-31 at 09:38 -0700, Paul E. McKenney wrote:
>
> > Does building with CONFIG_NO_HZ_FULL_SYSIDLE=y slow things down even more?
> > If so, that would give me a rough idea of the cost of RCU's dyntick-idle
> > handling.
>
> Nope. Deltas are all down in the statistical frog hair.
OK, then I guess that trying to squeeze down RCU's dyntick-idle detection
won't be much help. Worth a thought, though, and thank you for running
the tests!
Thanx, Paul
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