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2026-04-02 - 08:48
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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 Thu Apr 02, 2026 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
385037323880,12sleep4421ksoftirqd/419:05:184
385189799381379,1cyclictest3954727-21kworker/4:123:07:024
385189799380378,1cyclictest3954727-21kworker/4:123:47:024
385189799380378,1cyclictest3954727-21kworker/4:122:57:024
385189799380378,1cyclictest3954727-21kworker/4:100:23:024
3851897993800,379cyclictest0-21swapper/422:35:024
385187099379377,1cyclictest3867763-21kworker/1:121:21:031
385189799377376,1cyclictest0-21swapper/400:03:024
385189799377375,1cyclictest3954727-21kworker/4:100:33:024
385189799377375,1cyclictest0-21swapper/421:51:034
385189799376375,1cyclictest0-21swapper/423:21:024
385189799376375,1cyclictest0-21swapper/422:23:024
385189799376374,1cyclictest3954727-21kworker/4:123:43:024
385187099376374,1cyclictest3958152-21kworker/1:022:25:021
385189799375374,1cyclictest0-21swapper/400:35:024
385189799375373,1cyclictest4142303-21kworker/4:220:11:024
385189799375373,1cyclictest3954727-21kworker/4:122:27:024
385189799375373,1cyclictest0-21swapper/423:12:024
385187099375374,1cyclictest0-21swapper/100:39:021
385187099375373,1cyclictest3958152-21kworker/1:021:43:021
385189799374372,1cyclictest4142303-21kworker/4:221:35:024
385189799373372,1cyclictest0-21swapper/422:49:034
385189799373372,1cyclictest0-21swapper/422:14:024
385189799373372,1cyclictest0-21swapper/421:28:024
385189799373371,1cyclictest3954727-21kworker/4:121:49:024
385189799373371,1cyclictest0-21swapper/420:48:034
385187099373371,1cyclictest3867763-21kworker/1:120:45:031
385189799372371,1cyclictest0-21swapper/419:33:024
385189799372370,2cyclictest3954727-21kworker/4:100:12:024
385189799372370,1cyclictest4142303-21kworker/4:221:03:024
385189799372370,1cyclictest0-21swapper/422:43:024
385189799372370,1cyclictest0-21swapper/422:43:024
385189799371369,1cyclictest3954727-21kworker/4:100:05:024
385187099371369,1cyclictest3867763-21kworker/1:120:25:021
385189799370369,1cyclictest0-21swapper/421:23:034
385189799370368,1cyclictest4142303-21kworker/4:221:12:024
385189799370368,1cyclictest4142303-21kworker/4:221:12:024
385189799370368,1cyclictest3954727-21kworker/4:122:09:024
385189799370368,1cyclictest0-21swapper/421:09:024
385187099370369,1cyclictest0-21swapper/121:15:031
385187099370368,1cyclictest3854835-21kworker/1:019:25:021
3851870993700,369cyclictest0-21swapper/123:04:021
385189799369368,1cyclictest0-21swapper/420:56:024
385189799369368,1cyclictest0-21swapper/420:41:024
385189799369368,1cyclictest0-21swapper/419:36:024
385189799369368,1cyclictest0-21swapper/419:27:024
385187099369368,1cyclictest3867763-21kworker/1:120:17:031
385187099369367,1cyclictest3867763-21kworker/1:121:13:021
385187099369367,1cyclictest3867763-21kworker/1:121:13:021
385187099369367,1cyclictest3867763-21kworker/1:119:39:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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