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2026-09-19 - 22:59
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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 Sep 19, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
749621620,3sleep3971099cyclictest10:02:083
3080321500,1sleep00-21swapper/010:28:180
68621470,1sleep1970199cyclictest10:07:231
1728621360,0sleep00-21swapper/010:45:170
310821330,2sleep20-21swapper/211:02:062
3005421320,2sleep330055-21bash11:07:413
684221270,4sleep3971099cyclictest08:15:003
2404521270,2sleep30-21swapper/312:03:043
2916021260,1sleep0969799cyclictest11:42:490
2916021260,1sleep0969799cyclictest11:42:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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