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2026-07-20 - 20:04
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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 Jul 20, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2519421290,3sleep31030299cyclictest10:50:053
2817221260,2sleep10-21swapper/110:21:341
2213921210,4sleep11030099cyclictest09:27:191
1793821000,1sleep02512-21runrttasks12:11:120
220702980,0sleep041ktimersoftd/012:00:300
220702980,0sleep041ktimersoftd/012:00:300
1001929728,40sleep10-21swapper/107:09:491
144242940,4sleep01029999cyclictest11:25:440
246692930,2sleep10-21swapper/110:42:461
276872920,3sleep30-21swapper/310:06:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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