Re: [PATCH RFC tip/core/rcu 2/2] Don't track sysidle state if no nohz_full= CPUs

From: Frederic Weisbecker
Date: Thu Jul 24 2014 - 10:58:55 EST

On Wed, Jul 23, 2014 at 09:29:51AM -0700, Paul E. McKenney wrote:
> If there are no nohz_full= CPUs, then there is currently no reason to
> track sysidle state. This commit therefore short-circuits this state
> tracking if !tick_nohz_full_enabled().
> Note that these checks will need to be revisited if nohz_full= state
> can ever be changed at runtime.
> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at