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2026-07-10 - 11:16
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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 10 highest latencies:
System rack5slot0.osadl.org (updated Fri Jul 10, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1401121340,4sleep21878499cyclictest22:11:222
1300721230,0sleep313009-21id23:32:063
1857421210,0sleep00-21swapper/021:47:310
3092221130,4sleep11878399cyclictest22:02:481
18471210732,47sleep30-21swapper/319:09:203
1834029432,41sleep10-21swapper/119:07:391
95212890,0sleep00-21swapper/023:02:290
208322880,1sleep10-21swapper/122:34:291
180412870,1sleep10-21swapper/123:59:051
62892840,2sleep20-21swapper/223:38:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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