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2025-10-13 - 17:27
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack9slot2.osadl.org (updated Mon Oct 13, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228932301206,83sleep10-21swapper/11
243612298260,25sleep30-21swapper/33
2477399262256,3cyclictest1012-21sendmail-mta0
244262258188,23sleep20-21swapper/22
246272244185,37sleep00-21swapper/00
2478799229223,4cyclictest0-21swapper/33
2478399187182,3cyclictest271rcuc/22
2580221440,2sleep22478399cyclictest2
24778999894,2cyclictest984-21munin-run1
215262520,2sleep10-21swapper/11
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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