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2025-11-17 - 21:53
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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 17, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1304121340,4sleep22674699cyclictest12:30:562
1142521230,4sleep22674699cyclictest12:25:112
26269211434,43sleep10-21swapper/107:07:191
2779221130,0sleep00-21swapper/010:42:370
1214621110,2sleep10-21swapper/112:39:491
1591321070,2sleep115915-21bash10:11:391
1591321070,2sleep115915-21bash10:11:391
2468321030,1sleep30-21swapper/312:06:123
131832980,1sleep20-21swapper/209:58:102
193802960,0sleep00-21swapper/012:37:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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