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2026-03-23 - 09:14
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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 Mon Mar 23, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1349721250,0sleep00-21swapper/023:22:050
225482960,3sleep01884199cyclictest23:19:410
209402900,1sleep30-21swapper/300:18:513
62552890,7sleep233-21ksoftirqd/223:36:502
55412870,0sleep00-21swapper/021:27:560
1838928638,44sleep10-21swapper/119:07:341
146942860,2sleep014686-21sshd23:00:370
308262850,2sleep12024-21nfsd22:30:481
186712850,0sleep00-21swapper/000:00:280
315002840,0sleep00-21swapper/000:34:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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