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2025-12-20 - 20:53
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack1slot8.osadl.org (updated Sat Dec 20, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109392943920,16sleep00-21swapper/007:05:260
1142499893823,56cyclictest19034-21df07:30:171
110222467447,13sleep10-21swapper/107:06:151
1142499456389,55cyclictest0-21swapper/107:10:061
1142399439418,13cyclictest0-21swapper/007:10:050
2286991140,5rtkit-daemon2285-21rtkit-daemon12:37:341
11424999815,64cyclictest0-21swapper/110:52:581
228699970,4rtkit-daemon2285-21rtkit-daemon10:11:061
145012890,4sleep014502-21sh12:38:450
1142399895,71cyclictest0-21swapper/007:30:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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