sched/fair: Do not compute overloaded status unnecessarily during lb

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Only set sg_overloaded when computing sg_lb_stats() at the highest sched
domain since rd->overloaded status is updated only when load balancing
at the highest domain. While at it, move setting of sg_overloaded below
idle_cpu() check since an idle CPU can never be overloaded.

Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Link: https://lore.kernel.org/r/20241223043407.1611-8-kprateek.nayak@amd.com

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K Prateek Nayak 2024-12-23 04:34:06 +00:00 • committed by Peter Zijlstra

parent 0ac1ee9ebf

commit 3229adbe78

1 changed files with 5 additions and 3 deletions

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kernel/sched/fair.c

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