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2026-04-12 - 14:19
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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 Sun Apr 12, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3215021300,4sleep21645199cyclictest07:45:012
1162821300,4sleep01644299cyclictest10:25:180
3128021200,1sleep02024-21nfsd10:31:190
2976621150,2sleep20-21swapper/212:12:082
2976621150,2sleep20-21swapper/212:12:082
308402880,3sleep20-21swapper/211:01:262
43402840,1sleep30-21swapper/311:20:303
199422840,3sleep31645799cyclictest12:10:523
199422840,3sleep31645799cyclictest12:10:513
193512830,2sleep10-21swapper/112:34:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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