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2025-08-21 - 21:29
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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 rack0slot0.osadl.org (updated Thu Aug 21, 2025 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
230921350,1sleep3673499cyclictest09:38:593
230921350,1sleep3673499cyclictest09:38:593
356321280,5sleep4674399cyclictest11:15:174
3258821170,0sleep60-21swapper/610:50:346
631521050,0sleep10-21swapper/109:39:371
631521050,0sleep10-21swapper/109:39:371
72682870,1sleep10-21swapper/110:08:301
123762850,0sleep50-21swapper/511:30:565
63102800,0sleep00-21swapper/011:35:000
156512780,0sleep3411ktimersoftd/310:38:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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