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2026-04-02 - 23:14
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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 rackeslot8.osadl.org (updated Thu Apr 02, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8981882350,1sleep00-21swapper/011:10:190
585478993330,1cyclictest0-21swapper/312:20:013
585478993330,1cyclictest0-21swapper/310:00:003
585478992623,1cyclictest0-21swapper/310:30:013
585478992522,1cyclictest0-21swapper/309:25:003
585478992422,1cyclictest0-21swapper/312:30:013
585478992320,1cyclictest0-21swapper/307:44:593
585478992320,1cyclictest0-21swapper/307:35:003
585478992220,1cyclictest0-21swapper/308:10:173
585478992220,1cyclictest0-21swapper/308:10:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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