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2026-04-11 - 22:13
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack0slot0.osadl.org (updated Sat Apr 11, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2530621410,4sleep71524799cyclictest10:24:317
2459421250,0sleep30-21swapper/310:06:073
2555321150,0sleep70-21swapper/709:39:197
12882800,0sleep40-21swapper/412:19:114
220212790,0sleep20-21swapper/210:51:022
166092790,0sleep40-21swapper/412:35:064
246752770,0sleep50-21swapper/511:18:465
244982770,0sleep10-21swapper/109:16:291
289922740,1sleep60-21swapper/610:56:356
298502730,0sleep20-21swapper/208:45:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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