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2026-05-07 - 16:24
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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 May 07, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2143821370,1sleep30-21swapper/312:24:143
1241521220,3sleep02393199cyclictest10:19:560
2704221140,1sleep30-21swapper/310:24:563
2333429332,48sleep30-21swapper/307:05:273
233922920,3sleep02393199cyclictest11:12:020
182212910,1sleep12393699cyclictest11:40:441
192322890,2sleep00-21swapper/012:27:360
243612880,1sleep024363-21nfsd410:00:170
2362328833,43sleep10-21swapper/107:09:061
133602860,2sleep10-21swapper/110:20:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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