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2026-07-13 - 09:15
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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 rack0slot3.osadl.org (updated Mon Jul 13, 2026 00:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374774099395394,1cyclictest0-21swapper/223:42:008
374774099394394,0cyclictest0-21swapper/223:57:598
374774099394394,0cyclictest0-21swapper/221:35:588
374774099393393,0cyclictest0-21swapper/223:03:588
374774099393393,0cyclictest0-21swapper/223:03:588
37473002355338,11sleep140-21swapper/1419:07:226
37474322349312,13sleep30-21swapper/319:09:039
37472182349309,13sleep60-21swapper/619:06:1012
37473432348328,13sleep150-21swapper/1519:07:557
37474232347326,14sleep110-21swapper/1119:08:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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