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2025-12-13 - 09:09
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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 Dec 13, 2025 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3275284993735,1cyclictest3284947-21kworker/0:1+pm23:47:570
3275294993431,2cyclictest3549554-21idleruntime-cro23:40:013
327528699301,26cyclictest261-21systemd-journal22:45:001
3275284992926,2cyclictest0-21swapper/021:35:000
327528699271,22cyclictest0-21swapper/121:25:141
327528999261,21cyclictest3549829-21apt-get23:40:132
327528699262,3cyclictest3473653-21apt-get22:25:091
327528699262,22cyclictest3600626-21apt-get00:30:081
327528699262,21cyclictest0-21swapper/100:05:091
3275289992515,1cyclictest3605461-21apt-get00:35:002
327528699252,21cyclictest3585328-21apt-get00:15:081
3275286992520,3cyclictest3519545-21apt-get23:10:091
327528699251,22cyclictest3483773-21apt-get22:35:121
327528699251,22cyclictest3427719-21apt-get21:40:121
327528699251,22cyclictest3402397-21apt-get21:15:121
327528499251,23cyclictest3366474-21cron20:39:590
327529499242,2cyclictest3498886-21apt-get22:50:083
327529499241,21cyclictest3509454-21apt-get23:00:113
327528999242,21cyclictest0-21swapper/221:00:002
3275289992420,2cyclictest3539754-21apt-get23:30:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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