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2026-08-08 - 10:31
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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 rackfslot7.osadl.org (updated Sat Aug 08, 2026 00:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234548299770,76cyclictest0-21swapper/520:25:175
234548299612,19cyclictest0-21swapper/519:45:175
2345484995318,15cyclictest0-21swapper/720:05:167
2345484995315,19cyclictest0-21swapper/723:15:157
2345482995214,19cyclictest0-21swapper/520:30:165
2345482995212,39cyclictest0-21swapper/523:30:145
2345484995133,0cyclictest0-21swapper/720:00:147
2345480995113,19cyclictest0-21swapper/319:55:153
2345482995012,38cyclictest0-21swapper/519:15:175
2345484994911,19cyclictest0-21swapper/719:35:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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