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2026-04-28 - 17:08
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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 Tue Apr 28, 2026 00:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
77613199381379,1cyclictest769980-21kworker/3:121:56:013
77615999380379,1cyclictest927007-21kworker/6:022:24:026
77615999379377,1cyclictest0-21swapper/600:11:016
77613199379378,1cyclictest0-21swapper/321:46:023
77613199379378,1cyclictest0-21swapper/321:46:023
77615999378377,1cyclictest0-21swapper/623:12:026
77615999378377,1cyclictest0-21swapper/623:12:026
77613199378376,2cyclictest769980-21kworker/3:122:37:023
77613199378376,1cyclictest0-21swapper/322:47:013
77615999377376,1cyclictest0-21swapper/622:35:026
77613199377376,1cyclictest0-21swapper/320:15:023
77613199377375,1cyclictest1000835-21kworker/3:000:00:023
77613199377375,1cyclictest0-21swapper/321:39:013
77613199376375,1cyclictest769980-21kworker/3:123:01:023
77613199376375,1cyclictest0-21swapper/323:33:013
77613199376375,1cyclictest0-21swapper/300:36:023
77613199376375,1cyclictest0-21swapper/300:36:013
77613199376374,1cyclictest769980-21kworker/3:122:08:023
77613199376374,1cyclictest0-21swapper/322:29:013
77615999375374,1cyclictest0-21swapper/622:04:016
77615999375373,1cyclictest0-21swapper/622:57:016
77613199375374,1cyclictest769980-21kworker/3:122:55:013
77613199375374,1cyclictest769980-21kworker/3:121:29:013
77613199375374,1cyclictest1000835-21kworker/3:023:56:023
77613199375374,1cyclictest0-21swapper/323:29:013
77613199375374,1cyclictest0-21swapper/323:10:023
77613199375374,1cyclictest0-21swapper/323:10:023
77613199375374,1cyclictest0-21swapper/322:11:013
77613199375374,1cyclictest0-21swapper/300:05:013
77613199375373,1cyclictest769980-21kworker/3:121:11:023
77613199375373,1cyclictest0-21swapper/322:20:023
77615999374373,1cyclictest0-21swapper/621:51:026
77615999374372,1cyclictest952045-21kworker/6:123:31:016
77615999374372,1cyclictest0-21swapper/619:33:026
77613199374373,1cyclictest769980-21kworker/3:121:42:013
77613199374373,1cyclictest769980-21kworker/3:121:23:023
77613199374373,1cyclictest0-21swapper/323:36:023
77613199374372,1cyclictest769980-21kworker/3:122:50:013
77615999373371,1cyclictest952045-21kworker/6:123:22:026
77615999373370,2cyclictest952045-21kworker/6:123:05:026
77613199373372,1cyclictest769980-21kworker/3:120:20:023
77613199373372,1cyclictest769980-21kworker/3:120:20:013
77613199373372,1cyclictest0-21swapper/322:40:023
77613199373371,1cyclictest0-21swapper/300:17:023
77615999372371,1cyclictest952045-21kworker/6:123:19:026
77615999372371,1cyclictest828117-21kworker/6:221:14:026
77613199372371,1cyclictest1000835-21kworker/3:023:40:023
77613199372371,1cyclictest0-21swapper/321:31:013
77613199372371,1cyclictest0-21swapper/319:35:013
77613199372370,1cyclictest769980-21kworker/3:120:35:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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