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2026-04-18 - 18:42
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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 Apr 18, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193610499301,3cyclictest261-21systemd-journal12:40:003
1936102993027,2cyclictest1982393-21sh07:55:012
193610499280,18cyclictest2181438-21systemd-run11:10:013
193610499271,23cyclictest2192232-21apt-get11:20:113
193610499270,20cyclictest0-21swapper/307:10:113
193610499270,20cyclictest0-21swapper/307:10:113
193610499270,1cyclictest0-21swapper/310:05:103
193610299271,22cyclictest2038239-21apt-get08:50:122
193610299262,2cyclictest2018002-21apt-get08:30:142
193610299261,21cyclictest2258923-21apt-get12:25:122
193609899261,21cyclictest2028120-21apt-get08:40:111
193609499260,21cyclictest0-21swapper/007:35:130
193610499252,20cyclictest1996675-21ntpq08:05:233
1936104992520,4cyclictest2212871-21apt-get11:40:123
193610499251,20cyclictest2079145-21apt-get09:30:123
193610499250,1cyclictest0-21swapper/312:27:083
1936102992521,2cyclictest2114471-21apt-get10:05:112
193610299251,3cyclictest0-21swapper/207:35:132
193610299251,21cyclictest2074112-21apt-get09:25:112
193610299251,21cyclictest0-21swapper/210:25:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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