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2026-04-04 - 15:53
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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 10 highest latencies:
System rack5slot0.osadl.org (updated Sat Apr 04, 2026 12:44:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1683621350,1sleep10-21swapper/112:17:491
399921320,4sleep01567499cyclictest11:08:160
2087321180,2sleep31569099cyclictest11:25:063
3154521150,3sleep21568499cyclictest11:58:142
2842521120,2sleep328423-21bash10:01:593
1639821070,0sleep116400-21id12:03:541
1538029133,54sleep10-21swapper/107:09:281
20492890,0sleep00-21swapper/011:15:010
181032890,0sleep00-21swapper/012:00:290
275882870,2sleep20-21swapper/210:34:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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