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2026-09-04 - 20:43
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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 Fri Sep 04, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249019919011820,52cyclictest0-21swapper/007:42:310
2469021001982,13sleep10-21swapper/107:08:181
24902994744,453cyclictest0-21swapper/107:10:071
2490299451368,49cyclictest0-21swapper/107:42:311
2490199350298,45cyclictest0-21swapper/007:10:070
244022254229,17sleep00-21swapper/007:05:260
2286991220,4rtkit-daemon2285-21rtkit-daemon10:24:501
24901999374,14cyclictest0-21swapper/011:19:590
24902998819,47cyclictest0-21swapper/111:34:591
24902997917,40cyclictest0-21swapper/111:44:001
228699790,4rtkit-daemon2285-21rtkit-daemon08:09:171
24902997817,39cyclictest0-21swapper/107:30:591
228699780,4rtkit-daemon2285-21rtkit-daemon09:19:431
24902997715,50cyclictest0-21swapper/110:48:591
228699770,4rtkit-daemon2285-21rtkit-daemon09:40:090
228699760,5rtkit-daemon2285-21rtkit-daemon09:59:541
228699760,5rtkit-daemon2285-21rtkit-daemon09:59:541
228699760,5rtkit-daemon2285-21rtkit-daemon07:55:221
24902997518,37cyclictest0-21swapper/111:36:591
24901997557,14cyclictest0-21swapper/010:00:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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