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2026-05-14 - 04:44
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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 Thu May 14, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1134021540,4sleep33120999cyclictest22:41:273
2902221250,4sleep33120999cyclictest00:29:563
1687021240,0sleep50-21swapper/500:17:235
2797721230,1sleep11-21systemd21:32:161
2454921180,0sleep60-21swapper/621:32:056
2809521150,0sleep70-21swapper/723:38:467
2154621150,2sleep40-21swapper/423:41:474
2959621080,0sleep60-21swapper/623:16:336
166312900,5sleep33120999cyclictest21:41:563
105352900,1sleep40-21swapper/421:24:344
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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