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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 rackeslot3.osadl.org (updated Tue Dec 16, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3233769996933,35cyclictest3243621-21kworker/1:319:40:141
3233769996346,15cyclictest1284072-1kworker/1:2H21:15:161
3233769996058,1cyclictest0-21swapper/121:44:011
3233769996041,18cyclictest3267026-21kworker/1:321:05:001
3233769995944,14cyclictest3327991-21kworker/1:000:15:141
3233769995944,14cyclictest3297892-21kworker/1:223:40:111
3233769995944,14cyclictest3265236-21kworker/1:020:55:061
3233769995942,16cyclictest3262141-21kworker/1:120:45:141
3233769995941,17cyclictest3297892-21kworker/1:223:20:001
3233769995854,2cyclictest0-21swapper/120:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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