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2026-06-19 - 08:06
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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 10 highest latencies:
System rack3slot0.osadl.org (updated Fri Jun 19, 2026 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107592940,2sleep51257099cyclictest23:58:335
1256299930,1cyclictest20012-21sshd23:41:544
12578998017,22cyclictest0-21swapper/623:41:546
71492790,1sleep773-21ksoftirqd/700:03:567
38902600,0sleep00-21swapper/023:03:020
1253999550,54cyclictest479-21kworker/1:023:41:541
89412500,2sleep51257099cyclictest23:05:075
226512490,0sleep30-21swapper/321:10:203
123912490,0sleep10-21swapper/123:05:191
1221024925,8sleep70-21swapper/719:05:347
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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