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2026-06-01 - 23:11
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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 20 highest latencies:
System rackcslot6.osadl.org (updated Mon Jun 01, 2026 12:46:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
735450993810,380cyclictest0-21swapper/011:08:020
735450993810,380cyclictest0-21swapper/010:04:020
735450993810,380cyclictest0-21swapper/009:56:020
735450993810,380cyclictest0-21swapper/008:02:020
735450993810,1cyclictest0-21swapper/011:12:020
735450993800,379cyclictest0-21swapper/008:56:020
735450993800,379cyclictest0-21swapper/008:53:020
735450993800,379cyclictest0-21swapper/008:53:020
735450993800,379cyclictest0-21swapper/008:32:020
735450993800,379cyclictest0-21swapper/007:51:020
735450993800,1cyclictest0-21swapper/009:07:020
73548399372368,1cyclictest1022925-21kworker/4:107:44:024
73549699370369,1cyclictest969516-21kworker/6:012:27:026
73549699370368,1cyclictest0-21swapper/611:45:026
73549699368365,1cyclictest745316-21kworker/6:008:15:036
73549699367366,1cyclictest969516-21kworker/6:011:55:026
73549699366363,2cyclictest969516-21kworker/6:012:21:026
73549699366363,2cyclictest745316-21kworker/6:009:51:036
73549699365363,1cyclictest969516-21kworker/6:012:10:026
73549699364363,1cyclictest927401-21kworker/6:110:33:036
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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