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2026-08-01 - 09:32
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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 Sat Aug 01, 2026 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1995121440,0sleep60-21swapper/623:07:516
2536821340,0sleep70-21swapper/723:08:087
811121250,4sleep3384799cyclictest23:17:193
2898221190,0sleep60-21swapper/622:06:286
2519021180,0sleep00-21swapper/023:21:320
299222950,4sleep7387299cyclictest23:52:017
211472920,0sleep30-21swapper/321:12:473
86352880,0sleep3411ktimersoftd/300:09:283
289502880,0sleep40-21swapper/423:36:514
289502880,0sleep40-21swapper/423:36:504
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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