Commit 475ca347 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

cpuidle: governors: teo: Refine tick_intercepts vs total events check 



Use 2/3 as the proportion coefficient in the check comparing
cpu_data->tick_intercepts with cpu_data->total because it is close
enough to the current one (5/8) and it allows of more straightforward
interpretation (on average, intercepts within the tick period length
are twice as frequent as other events).

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: default avatarChristian Loehle <christian.loehle@arm.com>
Link: https://patch.msgid.link/10793374.nUPlyArG6x@rafael.j.wysocki
parent 60836533

drivers/cpuidle/governors/teo.c

+1 −1
Original line number Diff line number Diff line
@@ -485,7 +485,7 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, 
	 * total wakeup events, do not stop the tick.

	 */

	if (drv->states[idx].target_residency_ns < TICK_NSEC &&

	    cpu_data->tick_intercepts > cpu_data->total / 2 + cpu_data->total / 8)

	    3 * cpu_data->tick_intercepts >= 2 * cpu_data->total)

		duration_ns = TICK_NSEC / 2;



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