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2025-11-25 - 16:36
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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 rackeslot3.osadl.org (updated Tue Nov 25, 2025 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
823129997636,39cyclictest846342-21kworker/1:108:55:001
823129997341,28cyclictest3384951-1kworker/1:2H08:45:061
823129997142,27cyclictest909018-21kworker/1:211:50:151
823129997140,29cyclictest3384951-1kworker/1:2H11:05:181
823129997042,27cyclictest903900-21kworker/1:011:25:011
823129997039,29cyclictest823583-21kworker/1:007:15:001
823129996843,24cyclictest3384951-1kworker/1:2H07:35:161
823129996839,28cyclictest823583-21kworker/1:007:15:161
823129996741,21cyclictest909018-21kworker/1:211:46:341
823129996737,28cyclictest846342-21kworker/1:109:00:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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