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2026-05-01 - 21:19
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Fri May 01, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265089918531770,56cyclictest0-21swapper/009:17:210
263132711691,14sleep10-21swapper/107:08:291
2650999443387,28cyclictest27234-21latency07:10:191
2650999361276,48cyclictest0-21swapper/109:17:201
2650899354290,57cyclictest0-21swapper/007:10:190
2286991160,5rtkit-daemon2285-21rtkit-daemon09:13:581
26508999416,72cyclictest0-21swapper/011:56:580
26508999412,29cyclictest0-21swapper/011:08:590
2650899915,15cyclictest0-21swapper/010:52:590
26508999139,46cyclictest0-21swapper/012:32:580
2650899899,16cyclictest0-21swapper/009:40:310
2650899896,14cyclictest0-21swapper/011:38:500
228699860,5rtkit-daemon2285-21rtkit-daemon09:49:041
2650899857,17cyclictest0-21swapper/007:40:200
2650899856,18cyclictest0-21swapper/009:55:130
2650899856,18cyclictest0-21swapper/007:45:260
2650899847,18cyclictest0-21swapper/011:50:010
2650899846,17cyclictest0-21swapper/010:30:180
26508998415,12cyclictest0-21swapper/010:09:150
26508998415,12cyclictest0-21swapper/010:09:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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