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2026-08-29 - 21:10
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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 rack8slot4.osadl.org (updated Sat Aug 29, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36776012225168,18sleep60-21swapper/607:07:386
36776882217185,20sleep10-21swapper/107:08:551
36776182216188,18sleep50-21swapper/507:07:535
36754152215188,18sleep70-21swapper/707:05:147
36776902212185,18sleep30-21swapper/307:08:573
36754592211182,19sleep40-21swapper/407:05:524
36776152210166,33sleep20-21swapper/207:07:512
36754942208178,20sleep00-21swapper/007:06:200
367798699340,31cyclictest3717635-21cron08:20:016
367797799340,33cyclictest0-21swapper/307:30:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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