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2026-01-02 - 21:13
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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 20 highest latencies:
System rack6slot5.osadl.org (updated Fri Jan 02, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1791499104275187,5189cyclictest4462-21kworker/0:108:18:260
179149999225263,4654cyclictest4462-21kworker/0:108:03:070
179149997385169,4558cyclictest25379-21kworker/0:207:27:020
179149997075053,4643cyclictest32597-21kworker/0:012:18:230
179149996425023,4608cyclictest14390-21kworker/0:111:43:500
179149996175112,4494cyclictest30665-21kworker/0:107:19:450
179149996125009,4592cyclictest4462-21kworker/0:108:28:230
179149993244782,4538cyclictest11673-21kworker/0:009:48:580
179149993094755,4543cyclictest16357-21kworker/0:110:50:370
179149992434637,4595cyclictest10269-21kworker/0:010:35:150
179149991984813,4374cyclictest18300-21kworker/0:008:58:060
179149991504588,4557cyclictest14390-21kworker/0:111:49:190
179149990684653,4411cyclictest16357-21kworker/0:111:05:590
179149990624539,4512cyclictest10515-21kworker/0:212:39:550
179149990274731,4291cyclictest16357-21kworker/0:111:27:200
179149989284578,4339cyclictest10269-21kworker/0:010:40:070
179149988844555,4318cyclictest16357-21kworker/0:110:55:390
179149988804554,4315cyclictest32597-21kworker/0:012:28:560
179149987964587,4193cyclictest18300-21kworker/0:009:18:400
179149987164328,4336cyclictest25379-21kworker/0:207:52:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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