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2026-09-04 - 11:35
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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 Sep 04, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
516921290,2sleep20-21swapper/223:25:132
2133921250,3sleep32867199cyclictest23:00:413
2636821180,4sleep22867099cyclictest22:12:182
1257721160,2sleep10-21swapper/122:22:271
28354210732,46sleep10-21swapper/119:09:181
328021050,1sleep03272-21bash22:30:240
1467021050,1sleep00-21swapper/022:54:290
1467021050,1sleep00-21swapper/022:54:280
1754821000,3sleep02866899cyclictest00:21:140
194772980,2sleep00-21swapper/000:30:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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