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2026-03-21 - 08:57
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 20 highest latencies:
System rackeslot4.osadl.org (updated Sat Mar 21, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3448252993532,2cyclictest3761184-21sh00:15:002
344824899311,26cyclictest0-21swapper/023:40:120
3448258992923,4cyclictest3777086-21tr00:30:173
3448258992923,4cyclictest3777086-21tr00:30:163
3448248992918,9cyclictest3606615-21cron21:45:000
344824899290,27cyclictest261-21systemd-journal23:00:010
344824899290,27cyclictest0-21swapper/022:00:120
344824899281,25cyclictest0-21swapper/022:25:120
344824899281,24cyclictest3700256-21apt-get23:15:110
344824899280,26cyclictest0-21swapper/022:20:160
344825899272,22cyclictest0-21swapper/322:00:133
344824999271,21cyclictest3479605-21apt-get19:40:111
3448248992719,6cyclictest3615877-21ntpq21:50:240
344824899271,23cyclictest3776597-21apt-get00:30:130
344824899271,23cyclictest3776597-21apt-get00:30:120
344824899271,22cyclictest3715825-21apt-get23:30:120
344824899270,24cyclictest0-21swapper/019:50:120
344824899270,12cyclictest3761349-21sed00:15:010
344825899261,21cyclictest3611946-21apt-get21:50:133
3448248992619,6cyclictest0-21swapper/022:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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