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2026-08-20 - 11:13
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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
Characteristics of the 20 highest latencies:
System rackeslot2.osadl.org (updated Thu Aug 20, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
235287921060,2sleep30-21swapper/323:20:023
21096102750,2sleep30-21swapper/320:25:163
22998392690,1sleep12299838-21ssh22:43:251
23435142490,1sleep02343515-21ssh23:11:090
22402822460,2sleep30-21swapper/322:02:143
20611402300,2sleep30-21swapper/319:50:013
20611402300,2sleep30-21swapper/319:50:013
2015318992918,6cyclictest0-21swapper/022:30:020
2015319992818,8cyclictest2234467-21cpuspeed_turbos22:00:031
22996282270,1sleep00-21swapper/022:42:430
2015319992623,2cyclictest2382228-21awk23:40:011
2015319992620,2cyclictest69250irq/121-eno123:05:031
2015319992613,6cyclictest69250irq/121-eno123:15:021
23758312250,4sleep00-21swapper/023:35:060
2015318992519,5cyclictest2234480-21sh22:00:040
201531999249,9cyclictest0-21swapper/100:15:031
2015319992415,8cyclictest2036663-21sh19:30:011
2015319992415,7cyclictest0-21swapper/119:45:031
2015319992414,9cyclictest2367015-21apt-get23:29:431
23013502230,1sleep20-21swapper/222:45:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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