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2026-05-29 - 19:23
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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 rack3slot6.osadl.org (updated Fri May 29, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
161689910877,19cyclictest0-21swapper/007:30:110
161689910877,17cyclictest14-21ksoftirqd/012:15:110
161689910676,16cyclictest14-21ksoftirqd/008:50:110
161689910574,18cyclictest14-21ksoftirqd/011:40:230
161689910476,15cyclictest14-21ksoftirqd/007:20:120
161689910473,20cyclictest14-21ksoftirqd/011:50:150
161689910273,19cyclictest14-21ksoftirqd/011:25:130
161689910271,20cyclictest14-21ksoftirqd/010:45:140
161689910271,19cyclictest0-21swapper/010:00:110
161689910171,17cyclictest14-21ksoftirqd/008:25:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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