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2026-03-25 - 20:36
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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 Wed Mar 25, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2756946993418,14cyclictest0-21swapper/008:50:010
275694699341,3cyclictest261-21systemd-journal08:39:590
2756946993318,6cyclictest3042344-21ps11:50:160
275694699330,4cyclictest2980379-21idleruntime-cro10:50:000
275694699311,28cyclictest2798137-21apt-get07:50:130
275694699301,3cyclictest2920357-21tr09:50:160
275694699300,4cyclictest2793571-21sed07:45:160
275694699300,2cyclictest2878713-21cron09:10:000
2756946992916,11cyclictest2777197-21munin-run07:29:590
275694699290,2cyclictest0-21swapper/007:10:110
2756946992718,8cyclictest261-21systemd-journal12:05:000
275694699271,25cyclictest0-21swapper/008:06:500
275695499261,21cyclictest3067140-21apt-get12:15:113
2756951992618,2cyclictest191rcu_preempt07:30:002
275695199260,2cyclictest191rcu_preempt12:10:012
275694899264,20cyclictest3041595-21cron11:50:001
2756948992621,3cyclictest3082750-21apt-get12:30:111
275694899261,22cyclictest2828465-21taskset08:20:131
275694899260,24cyclictest3067143-21taskset12:15:111
2756946992618,7cyclictest0-21swapper/011:55:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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