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2026-03-31 - 01:33
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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 Mon Mar 30, 2026 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52099130101,17cyclictest26-21ksoftirqd/109:15:121
5209912897,19cyclictest26-21ksoftirqd/110:15:141
5209911174,25cyclictest26-21ksoftirqd/109:55:251
5209910761,33cyclictest26-21ksoftirqd/112:10:151
5209910761,33cyclictest26-21ksoftirqd/112:10:151
5209910562,32cyclictest26-21ksoftirqd/108:35:131
5169910369,22cyclictest14-21ksoftirqd/010:10:130
5209910260,31cyclictest26-21ksoftirqd/108:20:141
5209910157,33cyclictest26-21ksoftirqd/110:10:151
5209910152,35cyclictest26-21ksoftirqd/109:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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