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2026-05-02 - 16:08
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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 rack3slot0.osadl.org (updated Sat May 02, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143569910451,53cyclictest0-21swapper/410:36:504
154032970,2sleep51436899cyclictest09:30:375
307252950,0sleep50-21swapper/511:18:425
226912830,1sleep622689-21sshd12:37:486
307252760,2sleep71438299cyclictest10:52:177
14375996966,2cyclictest663-21in:imjournal10:36:496
14368996238,23cyclictest28490-21bash10:36:495
37162570,0sleep00-21swapper/010:44:570
206562560,1sleep6721-21dbus-daemon10:21:246
151892540,1sleep7758-21runrttasks09:21:107
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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