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2025-11-10 - 16:44
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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 Nov 10, 2025 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2746021680,1sleep3120399cyclictest12:36:063
679921380,0sleep00-21swapper/011:51:500
301621330,2sleep0119099cyclictest12:05:010
1027821260,4sleep1119499cyclictest12:15:441
1393421210,2sleep2119999cyclictest11:52:362
1076421140,3sleep0119099cyclictest11:00:590
1338021120,4sleep113378-21bash09:41:531
1846721040,3sleep2119999cyclictest10:14:122
33921030,1sleep10-21swapper/111:23:461
179902990,3sleep01848-21nfsd11:35:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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