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2026-03-28 - 13:48
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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 28, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8340993210,20cyclictest0-21swapper/119:30:211
8346993127,2cyclictest261-21systemd-journal22:30:003
8346992918,2cyclictest191rcu_preempt23:10:173
8342992926,2cyclictest0-21swapper/223:00:162
8342992821,5cyclictest197470-21seq22:15:102
834699261,23cyclictest289385-21cut23:45:163
834699252,3cyclictest340049-21apt-get00:35:123
834699251,3cyclictest0-21swapper/300:05:133
834699251,2cyclictest222857-21apt-get22:40:093
834699251,21cyclictest283824-21apt-get23:40:113
8342992521,2cyclictest105186-21apt-get20:45:142
8342992515,8cyclictest0-21swapper/219:15:262
834299251,21cyclictest115289-21apt-get20:55:122
834299251,20cyclictest288895-21apt-get23:45:122
834099252,3cyclictest140515-21apt-get21:20:101
8340992520,2cyclictest334976-21apt-get00:30:121
834099251,21cyclictest156147-21apt-get21:35:121
834099251,21cyclictest0-21swapper/123:20:121
834099250,21cyclictest64-21kcompactd019:20:071
8336992522,2cyclictest61650irq/133-enp0s29f1:rx-023:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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