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2026-05-08 - 11:56
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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 Fri May 08, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
796255993229,1cyclictest0-21swapper/300:20:013
796255993128,1cyclictest0-21swapper/300:00:003
796255992926,1cyclictest0-21swapper/300:30:003
796255992825,1cyclictest0-21swapper/320:35:003
796255992724,1cyclictest0-21swapper/300:40:013
129998270,11rtkit-daemon222-21plymouthd19:10:010
11345702270,1sleep10-21swapper/123:05:011
796255992522,1cyclictest0-21swapper/323:55:003
796255992320,1cyclictest0-21swapper/321:00:013
796255992320,1cyclictest0-21swapper/320:40:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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