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2025-12-27 - 01:53
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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 Sat Dec 27, 2025 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7257999504,908cyclictest0-21swapper/119:11:021
725599781705,61cyclictest0-21swapper/019:11:030
725599460375,78cyclictest0-21swapper/021:12:310
70832407384,16sleep00-21swapper/019:08:350
725799391326,29cyclictest0-21swapper/121:12:311
7257991237,70cyclictest22056-21sh00:01:591
2286991010,12rtkit-daemon0-21swapper/000:19:240
228699990,6rtkit-daemon0-21swapper/000:31:291
7257999030,46cyclictest0-21swapper/121:54:591
722028712,57sleep17235-21munin-run19:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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