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2025-12-16 - 10:37
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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 rack0slot0.osadl.org (updated Tue Dec 16, 2025 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2473721390,5sleep03019499cyclictest21:20:300
207732780,0sleep30-21swapper/321:30:263
88062770,1sleep50-21swapper/523:46:595
144672760,4sleep73023999cyclictest22:22:487
85542740,0sleep40-21swapper/422:16:204
24282730,1sleep30-21swapper/322:20:353
274022720,0sleep60-21swapper/623:07:266
274022720,0sleep60-21swapper/623:07:256
218902720,0sleep521888-21sshd21:35:575
281512710,1sleep628150-21grepconf.sh00:33:246
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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