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2026-07-03 - 02:18
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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 rackcslot6.osadl.org (updated Thu Jul 02, 2026 12:46:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
358445299382380,1cyclictest3837345-21kworker/7:008:03:037
358445299382380,1cyclictest3621330-21kworker/7:210:53:027
358445299382380,1cyclictest3621330-21kworker/7:209:01:027
358445299381380,1cyclictest3837345-21kworker/7:007:57:037
358445299381380,1cyclictest3837345-21kworker/7:007:47:037
358445299381379,1cyclictest3621330-21kworker/7:212:29:027
358445299381379,1cyclictest3621330-21kworker/7:211:33:027
358445299381379,1cyclictest3621330-21kworker/7:210:13:037
358445299380379,1cyclictest3621330-21kworker/7:211:17:027
358445299380379,1cyclictest3621330-21kworker/7:209:21:027
358445299380378,1cyclictest3621330-21kworker/7:208:41:027
358445299379378,1cyclictest63-21ksoftirqd/708:11:027
358445299379377,1cyclictest3837345-21kworker/7:007:37:037
358445299379377,1cyclictest3837345-21kworker/7:007:27:027
358445299379377,1cyclictest3621330-21kworker/7:211:37:027
358445299378377,1cyclictest3621330-21kworker/7:210:49:037
358445299378377,1cyclictest3621330-21kworker/7:210:07:027
358445299378376,1cyclictest3621330-21kworker/7:209:29:027
358445299378376,1cyclictest3621330-21kworker/7:209:17:027
358445299377375,1cyclictest3621330-21kworker/7:212:21:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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