Tejun Heo 8a1dd1e547 workqueue: Track and monitor per-workqueue CPU time usage ... Now that wq_worker_tick() is there, we can easily track the rough CPU time consumption of each workqueue by charging the whole tick whenever a tick hits an active workqueue. While not super accurate, it provides reasonable visibility into the workqueues that consume a lot of CPU cycles. wq_monitor.py is updated to report the per-workqueue CPU times. v2: wq_monitor.py was using "cputime" as the key when outputting in json format. Use "cpu_time" instead for consistency with other fields. Signed-off-by: Tejun Heo <tj@kernel.org>		2023-05-17 17:02:09 -10:00
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wq_monitor.py	workqueue: Track and monitor per-workqueue CPU time usage	2023-05-17 17:02:09 -10:00