diff options
Diffstat (limited to 'drivers/cpuidle/governors/menu.c')
| -rw-r--r-- | drivers/cpuidle/governors/menu.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 7d21fb5a72f4..64d6f7a1c776 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -317,11 +317,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, } /* - * Use a physical idle state, not busy polling, unless a timer - * is going to trigger soon enough. + * Use a physical idle state instead of busy polling so long as + * its target residency is below the residency threshold, its + * exit latency is not greater than the predicted idle duration, + * and the next timer doesn't expire soon. */ if ((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) && - s->target_residency_ns <= data->next_timer_ns) { + s->target_residency_ns < RESIDENCY_THRESHOLD_NS && + s->target_residency_ns <= data->next_timer_ns && + s->exit_latency_ns <= predicted_ns) { predicted_ns = s->target_residency_ns; idx = i; break; |