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2026-04-21 - 10:19
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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 Tue Apr 21, 2026 00:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3439929993414,2cyclictest0-21swapper/200:15:012
3439929993320,12cyclictest514-21in:imuxsock21:44:592
343992999320,23cyclictest1-21systemd00:40:002
3439929993118,12cyclictest3767224-21cron00:30:002
343992999301,27cyclictest0-21swapper/222:35:002
343992999301,26cyclictest3665024-21apt-get22:50:112
343992999301,21cyclictest3731198-21apt-get23:55:102
3439929992818,8cyclictest3618312-21awk22:05:012
343992999281,20cyclictest3633779-21apt-get22:20:142
3439929992721,4cyclictest3547769-21apt-get20:55:122
343992999271,23cyclictest0-21swapper/220:20:132
343992999270,20cyclictest3573399-21expr21:20:152
343992599272,22cyclictest3628719-21apt-get22:15:121
3439922992722,3cyclictest3715770-21cron23:40:000
3439922992722,3cyclictest3715770-21cron23:40:000
3439929992620,4cyclictest3506839-21apt-get20:15:122
3439929992619,5cyclictest3603379-21apt-get21:50:122
3439929992615,4cyclictest3486319-21cron19:55:002
3439929992615,3cyclictest3491399-21awk19:59:592
3439932992522,2cyclictest3450034-21sh19:20:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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