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2026-07-01 - 23:39
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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 20 highest latencies:
System rackcslot6.osadl.org (updated Wed Jul 01, 2026 12:46:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322761499359355,4cyclictest3510563-21kworker/1:010:19:021
322765599323322,1cyclictest0-21swapper/610:25:016
322765599323321,1cyclictest0-21swapper/609:55:016
322765599322320,1cyclictest3267548-21kworker/6:108:35:026
322765599322320,1cyclictest0-21swapper/611:00:016
322765599321320,1cyclictest0-21swapper/609:50:016
322765599321319,1cyclictest3218452-21kworker/6:207:15:026
322765599320318,1cyclictest3267548-21kworker/6:110:33:026
322765599319318,1cyclictest3354563-21kworker/6:011:20:026
322765599319318,1cyclictest0-21swapper/612:20:016
322765599319318,1cyclictest0-21swapper/612:00:016
322765599319318,1cyclictest0-21swapper/608:00:016
322765599319317,1cyclictest3267548-21kworker/6:109:35:026
322765599319317,1cyclictest0-21swapper/610:09:016
322765599319317,1cyclictest0-21swapper/609:11:026
322765599318317,1cyclictest3267548-21kworker/6:108:47:026
322765599318317,1cyclictest0-21swapper/611:25:026
322765599318317,1cyclictest0-21swapper/610:57:016
322765599318317,1cyclictest0-21swapper/610:11:026
322765599318317,1cyclictest0-21swapper/609:40:016
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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