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2026-04-09 - 23:21
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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 Thu Apr 09, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
276709919041823,48cyclictest0-21swapper/008:51:570
275502485461,16sleep00-21swapper/007:09:110
2767199419386,18cyclictest0-21swapper/107:10:171
2767199386306,52cyclictest0-21swapper/108:51:571
2767099357305,16cyclictest28336-21irqstats07:10:180
275662225206,13sleep10-21swapper/107:09:221
276709912010,104cyclictest0-21swapper/011:39:590
2286991100,5rtkit-daemon2285-21rtkit-daemon09:48:211
2286991000,4rtkit-daemon2285-21rtkit-daemon09:32:301
2767099876,20cyclictest0-21swapper/010:15:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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