On Thu, Aug 30, 2012 at 11:18:25AM -0700, Paul E. McKenney wrote:
> From: "Paul E. McKenney"
>
> RCU quiescent-state forcing is currently carried out without preemption
> points, which can result in excessive latency spikes on large systems
> (many hundreds or thousands of CPUs). This patch ther
From: "Paul E. McKenney"
RCU quiescent-state forcing is currently carried out without preemption
points, which can result in excessive latency spikes on large systems
(many hundreds or thousands of CPUs). This patch therefore inserts
a voluntary preemption point into force_qs_rnp(), which should
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