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2026-03-27 - 14:01
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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 Fri Mar 27, 2026 00:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176269624800,6sleep121-21ksoftirqd/119:05:181
176437199378377,1cyclictest1771181-21kworker/6:121:24:026
176437199377375,1cyclictest0-21swapper/621:19:026
176437199375373,2cyclictest0-21swapper/621:55:026
176437199374372,1cyclictest0-21swapper/623:21:026
176437199373370,2cyclictest0-21swapper/600:36:026
176435099373372,1cyclictest1866398-21kworker/3:022:15:023
176437199372371,1cyclictest0-21swapper/622:22:026
176437199372370,2cyclictest0-21swapper/623:11:026
176435099372370,1cyclictest1866398-21kworker/3:021:38:023
176437199371370,1cyclictest0-21swapper/621:47:026
176437199371368,2cyclictest97550irq/166-enp0s3100:33:026
176437199370369,1cyclictest2018844-21kworker/6:100:06:026
176437199370369,1cyclictest2018844-21kworker/6:100:00:026
176437199370369,1cyclictest0-21swapper/623:37:026
176437199370369,1cyclictest0-21swapper/622:13:026
176437199370369,1cyclictest0-21swapper/600:16:026
176437199369368,1cyclictest2018844-21kworker/6:100:22:026
176437199369368,1cyclictest2018844-21kworker/6:100:10:026
176437199369368,1cyclictest0-21swapper/623:18:016
176437199369368,1cyclictest0-21swapper/622:59:026
176437199369367,1cyclictest2018844-21kworker/6:123:54:026
176437199369367,1cyclictest0-21swapper/622:02:026
176437199368367,1cyclictest1925067-21kworker/6:022:47:026
176437199368367,1cyclictest0-21swapper/621:10:026
176435099368367,1cyclictest0-21swapper/322:34:023
176435099368367,1cyclictest0-21swapper/322:34:023
176435099368366,1cyclictest0-21swapper/323:08:023
176437199367366,1cyclictest1861915-21kworker/6:221:44:026
176437199367366,1cyclictest0-21swapper/623:30:026
176437199367366,1cyclictest0-21swapper/621:37:026
176437199367365,1cyclictest1861915-21kworker/6:221:53:026
176435099367366,1cyclictest1964910-21kworker/3:123:29:023
176435099367366,1cyclictest1964910-21kworker/3:123:16:023
176435099367365,1cyclictest0-21swapper/321:48:023
176435099367363,2cyclictest1866398-21kworker/3:021:58:023
176437199366365,1cyclictest1925067-21kworker/6:023:26:026
176437199366365,1cyclictest1771181-21kworker/6:120:00:026
176437199366365,1cyclictest1771181-21kworker/6:119:50:026
176437199366365,1cyclictest0-21swapper/619:35:026
176435099366365,1cyclictest2000883-21kworker/3:000:19:023
176435099366365,1cyclictest1866398-21kworker/3:022:42:023
176435099366365,1cyclictest1866398-21kworker/3:022:10:023
176435099366365,1cyclictest1866398-21kworker/3:021:51:023
176435099366365,1cyclictest1764221-21kworker/3:221:12:023
176435099366365,1cyclictest0-21swapper/322:36:023
176435099366365,1cyclictest0-21swapper/321:40:023
176435099366364,1cyclictest2000883-21kworker/3:023:56:023
176435099366364,1cyclictest2000883-21kworker/3:000:33:023
176437199365364,1cyclictest2018844-21kworker/6:123:57:026
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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