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2025-12-27 - 09:18
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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 rackbslot7.osadl.org (updated Sat Dec 27, 2025 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2596721217,81sleep125983-21systemd-run19:09:421
1461021070,6sleep30-21swapper/322:26:263
26063999750,17cyclictest22591-21latency22:40:070
26063999750,17cyclictest22591-21latency22:40:070
2606499963,43cyclictest1839-21grep23:00:051
62072950,6sleep00-21swapper/019:45:160
250382949,64sleep20-21swapper/219:06:252
2606499913,9cyclictest0-21swapper/123:29:531
26064999050,32cyclictest4613-21sh23:04:591
2606499903,37cyclictest16830-21runrttasks20:19:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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