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sched: Define sched_clock_irqtime as static key
authorYafang Shao <laoar.shao@gmail.com>
Fri, 3 Jan 2025 02:24:06 +0000 (10:24 +0800)
committerPeter Zijlstra <peterz@infradead.org>
Mon, 13 Jan 2025 13:10:25 +0000 (14:10 +0100)
commit8722903cbb8f0d51057fbf9ef1c680756b74119e
tree7dabad538e408c65a8c4eae1f24d3b8dab138394tree
parent3229adbe787534b43430f92e10175c9b77f2d27ccommit | diff
sched: Define sched_clock_irqtime as static key

Since CPU time accounting is a performance-critical path, let's define
sched_clock_irqtime as a static key to minimize potential overhead.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20250103022409.2544-2-laoar.shao@gmail.com
kernel/sched/cputime.c diff | blob | history
kernel/sched/sched.h diff | blob | history
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