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2025-11-21 - 07:46
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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 rack3slot6.osadl.org (updated Fri Nov 21, 2025 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1028221160,7sleep110285-21latency21:30:281
23920210220,33sleep10-21swapper/119:07:321
241162955,28sleep00-21swapper/019:09:070
24336999463,14cyclictest0-21swapper/019:50:130
24336999273,11cyclictest14-21ksoftirqd/022:30:150
24336999067,11cyclictest14-21ksoftirqd/000:10:160
24336998857,17cyclictest0-21swapper/000:35:130
24336998566,9cyclictest14-21ksoftirqd/023:15:230
24336998218,19cyclictest0-21swapper/020:40:140
24336997953,16cyclictest14-21ksoftirqd/022:25:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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