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2026-08-12 - 22:08
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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 Wed Aug 12, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
333902521330,3sleep2222-21plymouthd09:20:172
347297121080,1sleep10-21swapper/110:45:161
3165415993128,1cyclictest0-21swapper/310:40:003
3165415992825,1cyclictest0-21swapper/311:40:003
33459042250,1sleep00-21swapper/009:25:000
3165415992521,1cyclictest0-21swapper/309:30:013
3165415992421,1cyclictest0-21swapper/310:30:003
3165415992421,1cyclictest0-21swapper/307:40:173
3165415992321,1cyclictest0-21swapper/311:40:143
3165415992320,1cyclictest0-21swapper/308:00:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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