[PATCH 1/1] cpuidle/menu: avoid prioritizing physical state over polling state

[Aboorva Devarajan <aboorvad@linux.ibm.com>]

Update the cpuidle menu governor to avoid prioritizing physical states
over polling states when predicted idle duration is lesser than the
physical states target residency duration for performance gains.

Signed-off-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
---
 drivers/cpuidle/governors/menu.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index f3c9d49f0f2a..cf99ca103f9b 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -354,17 +354,6 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
 			idx = i; /* first enabled state */
 
 		if (s->target_residency_ns > predicted_ns) {
-			/*
-			 * Use a physical idle state, not busy polling, unless
-			 * a timer is going to trigger soon enough.
-			 */
-			if ((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) &&
-			    s->exit_latency_ns <= latency_req &&
-			    s->target_residency_ns <= data->next_timer_ns) {
-				predicted_ns = s->target_residency_ns;
-				idx = i;
-				break;
-			}
 			if (predicted_ns < TICK_NSEC)
 				break;
 
-- 
2.39.3