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2026-05-10 - 16:10
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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 rack1slot8.osadl.org (updated Sun May 10, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28229917741702,64cyclictest0-21swapper/009:22:350
25162955933,15sleep00-21swapper/007:07:210
282299502417,70cyclictest0-21swapper/007:10:200
282399460417,29cyclictest0-21swapper/109:22:351
282399372311,25cyclictest3628-21strings07:10:201
1165621010,5sleep111655-21ssh10:02:201
2286991000,4rtkit-daemon2285-21rtkit-daemon11:08:551
2823998732,42cyclictest0-21swapper/110:44:591
228699860,5rtkit-daemon2285-21rtkit-daemon11:16:451
228699860,4rtkit-daemon2285-21rtkit-daemon09:11:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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