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2026-06-11 - 16:14
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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 Jun 11, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
75409910714,62cyclictest0-21swapper/011:45:120
75409910515,60cyclictest0-21swapper/011:40:110
7540999739,45cyclictest22677-21apt-get12:25:130
7540999216,62cyclictest0-21swapper/010:50:130
7540999013,60cyclictest0-21swapper/007:10:120
7540998715,62cyclictest0-21swapper/010:35:120
7544998646,25cyclictest26-21ksoftirqd/110:05:111
7540998630,50cyclictest25686-21awk11:00:290
7544998546,22cyclictest26-21ksoftirqd/110:40:131
754099857,21cyclictest420-21apt-get09:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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