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2026-07-25 - 14:27
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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 rack5slot3.osadl.org (updated Sat Jul 25, 2026 12:56:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24136997739,84cyclictest0-21swapper/011:20:200
24136997180,84cyclictest26458-21sed11:30:410
241369971538,382cyclictest0-21swapper/008:00:170
241369970728,676cyclictest0-21swapper/012:09:320
241369970425,591cyclictest0-21swapper/011:46:260
241389967077,295cyclictest0-21swapper/211:12:442
241369966326,507cyclictest0-21swapper/010:38:160
241389965924,84cyclictest0-21swapper/212:07:412
2413899655103,380cyclictest0-21swapper/212:35:492
241369965417,634cyclictest13763-21ssh11:42:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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