Re: [RFC PATCH v1 00/11] Create fast idle path for short idle periods

From: Peter Zijlstra
Date: Thu Jul 13 2017 - 04:35:07 EST

On Wed, Jul 12, 2017 at 11:46:17AM -0700, Paul E. McKenney wrote:
> So please let me know if rcu_needs_cpu() or rcu_prepare_for_idle() are
> prominent contributors to to-idle latency.

Right, some actual data would be good.