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2026-07-22 - 23:19
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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 rack1slot8.osadl.org (updated Wed Jul 22, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
796799919842,48cyclictest0-21swapper/107:45:181
796699903824,51cyclictest0-21swapper/007:45:190
796799482417,48cyclictest0-21swapper/107:10:041
796799482417,48cyclictest0-21swapper/107:10:031
796699461398,52cyclictest0-21swapper/007:10:040
796699461398,52cyclictest0-21swapper/007:10:030
78652427403,16sleep00-21swapper/007:09:240
796699966,64cyclictest0-21swapper/012:25:160
7966999210,27cyclictest0-21swapper/011:55:290
61772900,3sleep1271ktimersoftd/111:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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