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2026-04-02 - 22:52
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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 Thu Apr 02, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
437299887797,84cyclictest0-21swapper/007:10:120
437399838764,40cyclictest0-21swapper/107:10:131
39752760736,16sleep00-21swapper/007:06:250
4372995234,507cyclictest0-21swapper/007:45:190
437399462403,43cyclictest0-21swapper/107:45:191
2286991300,5rtkit-daemon2285-21rtkit-daemon11:07:181
228699940,10rtkit-daemon0-21swapper/008:40:300
437399858,60cyclictest0-21swapper/108:29:001
228699840,4rtkit-daemon2285-21rtkit-daemon11:50:480
406728344,27sleep10-21swapper/107:07:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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