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2026-08-02 - 18:19
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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 Aug 02, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13829911536,68cyclictest0-21swapper/011:45:140
13829911210,87cyclictest0-21swapper/009:45:150
13829911064,32cyclictest14-21ksoftirqd/009:30:150
13829911012,82cyclictest0-21swapper/007:20:150
13829910916,77cyclictest0-21swapper/009:00:130
13829910862,35cyclictest14-21ksoftirqd/008:25:130
13829910758,36cyclictest14-21ksoftirqd/010:25:130
13829910715,75cyclictest0-21swapper/011:05:120
13829910615,77cyclictest0-21swapper/010:55:140
13829910615,77cyclictest0-21swapper/010:55:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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