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2026-08-31 - 14:58
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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 rack3slot6.osadl.org (updated Mon Aug 31, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202839912544,69cyclictest26-21ksoftirqd/109:35:111
202839912068,39cyclictest26-21ksoftirqd/107:10:131
202789912012,33cyclictest0-21swapper/008:45:160
202789911913,34cyclictest0-21swapper/010:50:140
202789911811,34cyclictest0-21swapper/012:10:140
202789911810,29cyclictest0-21swapper/007:50:140
202789911810,29cyclictest0-21swapper/007:15:130
202789911712,33cyclictest0-21swapper/007:25:160
202789911610,43cyclictest31594-31find07:40:130
202789911610,32cyclictest0-21swapper/008:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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