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2025-07-19 - 07:06
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackcslot6.osadl.org (updated Sat Jul 19, 2025 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
361622799381379,1cyclictest3640811-21kworker/6:221:05:036
361622799381379,1cyclictest3577724-21kworker/6:019:31:036
361622799381379,1cyclictest3577724-21kworker/6:019:27:036
3616227993810,380cyclictest0-21swapper/620:25:036
3616227993810,1cyclictest0-21swapper/619:20:036
361618199381379,1cyclictest3824291-21kworker/0:123:32:020
361618199381378,2cyclictest3824291-21kworker/0:123:08:030
361618199381378,2cyclictest3824291-21kworker/0:123:08:020
3616181993810,380cyclictest0-21swapper/021:32:020
361622799380379,1cyclictest3640811-21kworker/6:219:53:036
3616227993800,379cyclictest0-21swapper/623:57:026
3616227993800,379cyclictest0-21swapper/623:25:036
3616227993800,379cyclictest0-21swapper/622:08:036
3616227993800,379cyclictest0-21swapper/621:27:036
3616227993800,379cyclictest0-21swapper/621:15:036
3616227993800,1cyclictest0-21swapper/620:39:026
361622799379377,1cyclictest3640811-21kworker/6:220:32:026
3616227993790,379cyclictest0-21swapper/623:19:026
3616227993790,379cyclictest0-21swapper/600:25:026
361618199379377,1cyclictest3824291-21kworker/0:123:13:020
361622799378377,1cyclictest3640811-21kworker/6:220:53:026
361622799378377,1cyclictest3577724-21kworker/6:019:38:026
361618199378377,1cyclictest900730-21kworker/0:022:53:030
361618199378377,1cyclictest3824291-21kworker/0:100:39:030
361618199378376,1cyclictest0-21swapper/022:25:030
361621999377375,1cyclictest3866557-21kworker/5:300:09:035
361618199377376,1cyclictest0-21swapper/022:38:010
361618199377374,2cyclictest900730-21kworker/0:022:44:020
361618199376375,1cyclictest900730-21kworker/0:022:12:020
361618199376375,1cyclictest3824291-21kworker/0:100:20:010
361618199376374,2cyclictest900730-21kworker/0:020:35:020
361618199376374,1cyclictest900730-21kworker/0:019:11:030
361618199375374,1cyclictest0-21swapper/021:37:020
361618199375374,1cyclictest0-21swapper/000:06:030
361618199375373,1cyclictest0-21swapper/022:18:020
361618199375373,1cyclictest0-21swapper/021:13:030
361621999374373,1cyclictest3866557-21kworker/5:321:21:025
361620599374372,1cyclictest0-21swapper/323:35:023
361618199374373,1cyclictest0-21swapper/021:22:020
361618199374373,1cyclictest0-21swapper/019:45:030
361618199374372,1cyclictest900730-21kworker/0:023:03:030
361618199374372,1cyclictest0-21swapper/021:16:030
361621999373372,1cyclictest0-21swapper/500:26:025
361618199373372,1cyclictest3824291-21kworker/0:123:45:020
361618199373371,1cyclictest0-21swapper/000:12:030
361621999372370,1cyclictest0-21swapper/523:17:035
361620599372370,1cyclictest0-21swapper/323:54:023
361618199372371,1cyclictest0-21swapper/023:18:030
361618199372370,1cyclictest0-21swapper/020:47:030
361621999371370,1cyclictest0-21swapper/523:00:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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