hrtimer: Rework next event evaluation

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The per clock base cached expiry time allows to do a more efficient
evaluation of the next expiry on a CPU.

Separate the reprogramming evaluation from the NOHZ idle evaluation which
needs to exclude the NOHZ timer to keep the reprogramming path lean and
clean.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260224163431.468186893@kernel.org

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Thomas Gleixner 2026-02-24 17:38:33 +01:00 • committed by Peter Zijlstra

parent eddffab828

commit 2bd1cc24fa

1 changed files with 69 additions and 51 deletions

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kernel/time/hrtimer.c

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