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2026-04-20 - 07:17
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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 Mon Apr 20, 2026 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33900899272,21cyclictest466828-21apt-get21:15:113
339008992620,3cyclictest406194-21apt-get20:15:133
33900899261,23cyclictest261-21systemd-journal22:50:003
33900499261,23cyclictest522192-21cron22:10:012
338998992623,2cyclictest514-21in:imuxsock19:44:590
339008992519,4cyclictest349351-21latency_hist19:20:013
33900899251,21cyclictest456732-21apt-get21:05:133
33900499251,22cyclictest614828-21apt-get23:40:122
339000992515,2cyclictest421098-21idleruntime-cro20:29:591
33900099251,21cyclictest426409-21apt-get20:35:141
33899899250,1cyclictest0-21swapper/019:25:130
339008992420,2cyclictest476916-21apt-get21:25:143
33900899241,21cyclictest671919-21ps00:35:193
33900899241,20cyclictest0-21swapper/323:50:113
33900899241,20cyclictest0-21swapper/321:40:123
33900899240,20cyclictest497224-21apt-get21:45:113
339004992419,4cyclictest451404-21sh21:00:002
339004992419,4cyclictest451404-21sh20:59:592
33900499241,20cyclictest481970-21apt-get21:30:122
33900499241,20cyclictest339209-21apt-get19:10:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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