Rafael J. Wysocki 87c9fe6ee4 cpuidle: menu: Avoid selecting shallow states with stopped tick ... If the scheduler tick has been stopped already and the governor selects a shallow idle state, the CPU can spend a long time in that state if the selection is based on an inaccurate prediction of idle time. That effect turns out to be relevant, so it needs to be mitigated. To that end, modify the menu governor to discard the result of the idle time prediction if the tick is stopped and the predicted idle time is less than the tick period length, unless the tick timer is going to expire soon. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>		2018-04-09 11:54:57 +02:00
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ladder.c	cpuidle: Return nohz hint from cpuidle_select()	2018-04-06 09:29:34 +02:00
Makefile	cpuidle: consolidate 2.6.22 cpuidle branch into one patch	2007-10-10 00:12:41 -04:00
menu.c	cpuidle: menu: Avoid selecting shallow states with stopped tick	2018-04-09 11:54:57 +02:00