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2026-04-20 - 02:23
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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 Mon Apr 20, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1762599888784,74cyclictest18250-21if_eth019:10:161
1762499869763,78cyclictest0-21swapper/019:10:160
1762599859793,35cyclictest0-21swapper/119:44:331
1762499828756,45cyclictest0-21swapper/019:44:330
175542720698,15sleep00-21swapper/019:09:390
174392538516,14sleep10-21swapper/119:08:301
2286991260,3rtkit-daemon2285-21rtkit-daemon23:46:021
2286991020,10rtkit-daemon0-21swapper/119:39:091
279842960,4sleep127983-210anacron00:01:001
228699960,3rtkit-daemon2285-21rtkit-daemon19:56:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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