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2026-05-17 - 05:42
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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 Sun May 17, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59419912583,28cyclictest0-21swapper/021:30:140
59419912112,96cyclictest0-21swapper/021:00:120
59449911512,54cyclictest0-21swapper/122:55:231
59419911511,84cyclictest0-21swapper/020:05:260
59449911412,56cyclictest0-21swapper/119:45:221
59419911412,87cyclictest0-21swapper/000:10:110
59419911410,89cyclictest0-21swapper/023:30:130
59449911386,18cyclictest26-21ksoftirqd/122:25:161
59449911386,18cyclictest26-21ksoftirqd/122:25:161
59419911311,59cyclictest0-21swapper/022:35:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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