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2026-04-23 - 23:38
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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 23, 2026 12:46:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
341131499382380,1cyclictest0-21swapper/311:01:023
3411336993810,380cyclictest0-21swapper/607:53:026
3411336993810,380cyclictest0-21swapper/607:18:036
341131499381379,1cyclictest0-21swapper/310:13:023
341131499381379,1cyclictest0-21swapper/310:03:033
3411314993810,380cyclictest0-21swapper/310:51:033
3411336993800,379cyclictest0-21swapper/609:53:036
3411336993800,379cyclictest0-21swapper/609:46:036
3411336993800,379cyclictest0-21swapper/609:32:036
3411336993800,1cyclictest0-21swapper/611:44:036
3411336993800,1cyclictest0-21swapper/610:46:036
3411336993800,1cyclictest0-21swapper/609:04:026
341131499380378,1cyclictest0-21swapper/310:07:023
341131499380378,1cyclictest0-21swapper/308:51:033
341131499380377,1cyclictest0-21swapper/309:00:033
3411336993790,0cyclictest0-21swapper/607:41:026
341131499379377,1cyclictest0-21swapper/309:11:033
341131499378377,1cyclictest3439196-21kworker/3:109:31:033
341131499378377,1cyclictest0-21swapper/307:39:023
341131499378376,1cyclictest0-21swapper/312:17:023
341131499378376,1cyclictest0-21swapper/311:07:023
341131499378376,1cyclictest0-21swapper/307:11:023
341131499377375,1cyclictest0-21swapper/310:59:033
341131499377374,1cyclictest0-21swapper/311:40:033
341129599373372,1cyclictest3502374-21kworker/1:210:35:021
341129599372371,1cyclictest3421150-21kworker/1:111:17:021
341131499371370,1cyclictest0-21swapper/310:43:023
341131499371369,1cyclictest0-21swapper/308:45:023
341129599371369,1cyclictest687119-21kworker/1:008:15:021
341129599371369,1cyclictest687119-21kworker/1:008:15:021
341129599370368,1cyclictest3502374-21kworker/1:211:33:021
341129599370368,1cyclictest3502374-21kworker/1:210:23:031
341131499369368,1cyclictest0-21swapper/312:26:023
341131499369368,1cyclictest0-21swapper/311:15:023
341131499369367,1cyclictest0-21swapper/311:20:023
341129599369368,1cyclictest3502374-21kworker/1:209:45:021
341129599369367,1cyclictest687119-21kworker/1:007:49:031
341129599369367,1cyclictest0-21swapper/107:10:021
341131499368367,1cyclictest1276315-21kworker/3:207:40:023
341131499368366,2cyclictest1276315-21kworker/3:207:56:023
341131499368366,1cyclictest3439196-21kworker/3:111:37:023
341131499368366,1cyclictest3439196-21kworker/3:109:40:033
341131499368366,1cyclictest3439196-21kworker/3:109:40:023
341131499368366,1cyclictest1276315-21kworker/3:208:43:023
341131499368366,1cyclictest0-21swapper/311:29:023
341131499368366,1cyclictest0-21swapper/308:12:023
341129599368366,1cyclictest0-21swapper/110:05:021
341131499367365,1cyclictest0-21swapper/309:52:033
341131499367365,1cyclictest0-21swapper/307:25:013
341131499366365,1cyclictest3595633-21kworker/3:012:22:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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