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2026-06-08 - 11:48
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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 Mon Jun 08, 2026 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
307224924880,2sleep20-21swapper/219:05:152
307403299380379,1cyclictest3044588-21kworker/4:119:29:014
3074032993800,379cyclictest0-21swapper/419:23:024
3074032993800,1cyclictest0-21swapper/400:01:024
307403299379377,1cyclictest3217975-21kworker/4:123:27:024
307403299378377,1cyclictest3188415-21kworker/4:021:54:024
307403299378377,1cyclictest3044588-21kworker/4:121:09:024
307403299378376,1cyclictest3044588-21kworker/4:121:18:024
307403299378376,1cyclictest0-21swapper/423:33:014
307403299377376,1cyclictest3217975-21kworker/4:123:36:014
307403299377376,1cyclictest3217975-21kworker/4:122:26:024
307403299377376,1cyclictest3044588-21kworker/4:120:02:024
307403299377375,1cyclictest3217975-21kworker/4:123:48:014
307403299377375,1cyclictest0-21swapper/422:51:014
307403299377375,1cyclictest0-21swapper/422:51:014
307403299377375,1cyclictest0-21swapper/421:13:024
307403299376375,1cyclictest3371088-21kworker/4:100:18:024
307403299376375,1cyclictest3217975-21kworker/4:123:40:014
307403299376375,1cyclictest3188415-21kworker/4:022:08:024
307403299376375,1cyclictest0-21swapper/422:48:014
307403299376375,1cyclictest0-21swapper/421:57:014
307403299375374,1cyclictest3217975-21kworker/4:123:22:024
307403299375374,1cyclictest3217975-21kworker/4:122:44:024
307403299375374,1cyclictest3044588-21kworker/4:121:22:014
307403299374373,1cyclictest3389861-21kworker/4:000:38:024
307403299374373,1cyclictest3217975-21kworker/4:123:54:024
307403299374373,1cyclictest3217975-21kworker/4:122:22:014
307403299373372,1cyclictest3217975-21kworker/4:123:10:014
307403299373372,1cyclictest3044588-21kworker/4:120:55:014
307403299373372,1cyclictest3044588-21kworker/4:120:16:014
307403299373372,1cyclictest3044588-21kworker/4:119:17:024
307403299373372,1cyclictest0-21swapper/420:50:014
307403299373372,1cyclictest0-21swapper/420:45:014
307403299373371,1cyclictest3217975-21kworker/4:122:30:024
307403299370369,1cyclictest0-21swapper/420:38:024
307403299370369,1cyclictest0-21swapper/419:52:024
307403299370368,1cyclictest0-21swapper/421:02:024
307403299369368,1cyclictest0-21swapper/420:22:024
307403299369368,1cyclictest0-21swapper/420:12:014
307403299368366,1cyclictest0-21swapper/420:08:024
307401999368366,1cyclictest0-21swapper/200:13:022
307403299367366,1cyclictest0-21swapper/419:42:024
307401999362360,1cyclictest0-21swapper/200:27:012
307401999362360,1cyclictest0-21swapper/200:03:012
307401999361360,1cyclictest0-21swapper/222:57:012
307401999361360,1cyclictest0-21swapper/222:11:012
307401999361359,1cyclictest0-21swapper/200:05:022
307401999360358,1cyclictest3110946-21kworker/2:023:17:012
307401999360358,1cyclictest3110946-21kworker/2:023:13:012
307401999359358,1cyclictest0-21swapper/223:20:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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