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2026-09-03 - 22:14
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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 Thu Sep 03, 2026 12:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143879911657,17cyclictest14-21ksoftirqd/011:45:100
143879911653,19cyclictest0-21swapper/009:05:130
143879911051,19cyclictest14-21ksoftirqd/010:10:180
143949910310,75cyclictest0-21swapper/109:55:151
143879910311,33cyclictest30621-21taskset09:25:130
13977210223,24sleep10-21swapper/107:07:381
14387999973,12cyclictest14-21ksoftirqd/010:20:130
14387999972,13cyclictest14-21ksoftirqd/007:35:130
14387999871,14cyclictest14-21ksoftirqd/008:50:120
14387999871,14cyclictest14-21ksoftirqd/008:50:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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