Rafael J. Wysocki db86f55bf8 cpuidle: governors: menu: Select polling state in some more cases ... A throughput regression of 11% introduced by commit 779b1a1cb1 ("cpuidle: governors: menu: Avoid selecting states with too much latency") has been reported and it is related to the case when the menu governor checks if selecting a proper idle state instead of a polling one makes sense. In particular, it is questionable to do so if the exit latency of the idle state in question exceeds the predicted idle duration, so add a check for that, which is sufficient to make the reported regression go away, and update the related code comment accordingly. Fixes: 779b1a1cb1 ("cpuidle: governors: menu: Avoid selecting states with too much latency") Closes: https://lore.kernel.org/linux-pm/004501dc43c9$ec8aa930$c59ffb90$@telus.net/ Reported-by: Doug Smythies <dsmythies@telus.net> Tested-by: Doug Smythies <dsmythies@telus.net> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Christian Loehle <christian.loehle@arm.com> Link: https://patch.msgid.link/12786727.O9o76ZdvQC@rafael.j.wysocki		2025-10-27 14:41:27 +01:00
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Makefile	…
gov.h	cpuidle: menu: Skip tick_nohz_get_sleep_length() call in some cases	2023-08-17 11:28:38 +02:00
haltpoll.c	cpuidle: haltpoll: do not shrink guest poll_limit_ns below grow_start	2024-02-12 17:02:51 +01:00
ladder.c	cpuidle: ladder: fix ladder_do_selection() kernel-doc	2024-05-07 13:54:58 +02:00
menu.c	cpuidle: governors: menu: Select polling state in some more cases	2025-10-27 14:41:27 +01:00
teo.c	cpuidle: teo: Fix typos in two comments	2025-04-09 19:34:23 +02:00