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2025-09-18 - 11:09
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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 Thu Sep 18, 2025 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2743521840,4sleep11598299cyclictest23:20:231
986221580,1sleep09859-21bash22:51:040
3151021570,2sleep11598299cyclictest00:04:401
316321550,1sleep31846-21nfsd23:18:093
1089421440,0sleep310852-21sshd00:30:353
1714121370,1sleep30-21swapper/322:18:123
2560121360,3sleep01598199cyclictest21:42:340
1703621320,4sleep11598299cyclictest23:10:131
1872721180,3sleep318726-21bash23:56:323
2462821140,2sleep124630-21id23:26:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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