Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB deferred wakeups

From: Steven Rostedt
Date: Wed Jul 26 2017 - 19:09:46 EST


On Wed, 26 Jul 2017 14:47:41 -0700
"Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> wrote:


> > It is much lighter weight than a timer setup.
>
> How much lighter weight? In other words, what fraction of the
> timers have to avoid being cancelled for irq_work to break even?

No idea. I guess that would be a nice academic exercise ;-)

-- Steve