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2026-04-05 - 00:42
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Sat Apr 04, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297112487467,13sleep10-21swapper/107:08:501
2986299446381,58cyclictest0-21swapper/007:20:130
2986399437368,37cyclictest0-21swapper/107:10:021
2986299375307,42cyclictest0-21swapper/007:10:010
296452342318,16sleep00-21swapper/007:08:070
298629912249,56cyclictest0-21swapper/009:59:580
298629910611,89cyclictest0-21swapper/011:30:590
228699980,4rtkit-daemon2285-21rtkit-daemon07:38:591
228699970,4rtkit-daemon2285-21rtkit-daemon11:19:381
228699940,4rtkit-daemon2285-21rtkit-daemon09:59:571
228699930,4rtkit-daemon2285-21rtkit-daemon09:15:061
29863999172,15cyclictest0-21swapper/111:15:001
29862999015,65cyclictest0-21swapper/008:20:000
228699900,4rtkit-daemon2285-21rtkit-daemon10:06:371
228699890,4rtkit-daemon2285-21rtkit-daemon12:04:141
228699880,5rtkit-daemon2285-21rtkit-daemon09:40:060
228699880,14rtkit-daemon0-21swapper/107:22:591
228699870,4rtkit-daemon2285-21rtkit-daemon10:18:371
29863998614,34cyclictest0-21swapper/108:56:591
29862998659,10cyclictest0-21swapper/011:41:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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