Messages in this thread | | | From | Vincent Donnefort <> | Subject | [PATCH 0/3] Fix stuck overutilized | Date | Mon, 20 Dec 2021 12:43:20 +0100 |
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The overutilized signal indicates when one of the CPU of the root domain has an utilization above a certain threshold (0.8 * cpu_capacity). Its sole purpose is to disable EAS on asymmetric CPU capacity systems in favor of CAS. Under certain circumstances, described in the following patches, this signal can stay stuck.
The two first patches of this series intends to fix this blockage, while the last one is an improvement.
Vincent Donnefort (3): sched/fair: Make cpu_overutilized() EAS dependent sched/fair: Fix newidle_balance() for overutilized systems sched/fair: Do not raise overutilized for idle CPUs
kernel/sched/fair.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-)
-- 2.25.1
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