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2026-03-29 - 06:49
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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 Sun Mar 29, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3123803995450,2cyclictest3215681-21fwupd20:39:023
3123793994138,2cyclictest3164663-21kworker/0:1+pm20:39:020
3123797993413,20cyclictest1-21systemd20:10:181
312379799281,22cyclictest3226324-21latency_hist20:50:011
3123793992818,9cyclictest3231684-21apt-get20:55:130
312379799272,22cyclictest3440315-21apt-get00:20:131
312379799271,22cyclictest3328526-21apt-get22:30:111
312379799271,22cyclictest3216051-21apt-get20:40:121
312379799271,22cyclictest3195326-21apt-get20:20:111
312380399262,20cyclictest3425100-21apt-get00:05:123
312380399261,21cyclictest3308246-21apt-get22:10:123
312379799261,23cyclictest3164679-21turbostat.cron19:50:001
312379799261,23cyclictest3164679-21turbostat.cron19:49:591
3123793992623,2cyclictest3333295-21cron22:35:000
312379399260,21cyclictest0-21swapper/022:40:120
3123803992520,3cyclictest3455499-21apt-get00:35:143
3123797992520,2cyclictest3414974-21apt-get23:55:131
3123797992519,4cyclictest0-21swapper/121:30:121
312379799251,21cyclictest3338670-21apt-get22:40:111
312379799251,21cyclictest0-21swapper/120:35:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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