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2026-08-20 - 00:08
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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 rack5slot0.osadl.org (updated Wed Aug 19, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3248721270,3sleep2998599cyclictest10:18:342
1119421260,1sleep02024-21nfsd11:03:220
2583521230,2sleep325832-21rm09:20:373
1648021210,4sleep2998599cyclictest10:37:302
14472980,3sleep1998499cyclictest12:12:131
46802920,2sleep20-21swapper/211:57:502
276562910,3sleep30-21swapper/312:14:343
302042900,3sleep20-21swapper/212:09:012
173882890,7sleep3998699cyclictest11:53:143
145442890,4sleep30-21swapper/309:16:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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