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2026-06-22 - 07:58
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 50 highest latencies:
System rackeslot5.osadl.org (updated Mon Jun 22, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2772599300,29cyclictest8117-21dump-pmu-power23:00:001
2772599300,29cyclictest25892-21cron22:30:011
2772599300,29cyclictest16354-21cron00:25:011
27720993027,2cyclictest20999-21idleruntime-cro00:35:010
2772099300,29cyclictest29053-21cron23:45:020
27732992927,1cyclictest26746-21munin-run23:40:003
2773299290,28cyclictest0-21swapper/323:05:123
2773299290,28cyclictest0-21swapper/300:30:133
27729992928,1cyclictest18963-21apt-get00:30:132
2772999290,28cyclictest28580-21apt-get20:20:022
2772999290,28cyclictest27983-21apt-get19:10:202
2772999290,28cyclictest11074-21apt-get20:50:112
2772999290,0cyclictest0-21swapper/223:00:132
27725992928,1cyclictest621-21dbus-daemon19:25:011
27725992926,3cyclictest0-21swapper/120:45:001
2772599290,28cyclictest2611-21apt-get21:40:121
27720992928,1cyclictest5230-21apt-get19:30:110
2772099290,28cyclictest16868-21apt-get22:10:120
2772099290,28cyclictest0-21swapper/020:20:010
2772099290,28cyclictest0-21swapper/000:20:120
27732992828,0cyclictest0-21swapper/300:05:143
27729992827,0cyclictest9579-21apt-get21:55:112
2772999280,0cyclictest0-21swapper/200:25:132
27725992828,0cyclictest0-21swapper/123:05:131
2772599280,28cyclictest0-21swapper/122:30:121
2772599280,1cyclictest0-21swapper/119:55:011
2772599280,0cyclictest22709-21apt-get21:15:121
27720992828,0cyclictest0-21swapper/021:25:120
27720992828,0cyclictest0-21swapper/021:05:120
27720992828,0cyclictest0-21swapper/020:30:130
27720992825,2cyclictest307-21systemd-journal20:55:000
2772099280,0cyclictest20387-21apt-get21:10:110
2772099280,0cyclictest0-21swapper/022:55:130
2772099280,0cyclictest0-21swapper/020:00:130
27732992727,0cyclictest4069-21apt-get00:00:123
27732992727,0cyclictest0-21swapper/319:55:123
27732992726,1cyclictest8768-21apt-get00:10:023
27732992726,1cyclictest16641-21apt-get00:25:133
2773299270,27cyclictest0-21swapper/321:55:123
2773299270,0cyclictest0-21swapper/319:10:213
27729992727,0cyclictest0-21swapper/223:05:122
2772999270,0cyclictest30295-21apt-get19:15:122
2772999270,0cyclictest26520-21apt-get20:15:122
2772999270,0cyclictest0-21swapper/223:20:142
27725992727,0cyclictest0-21swapper/122:35:121
2772599270,27cyclictest0-21swapper/120:45:101
2772599270,27cyclictest0-21swapper/120:15:111
27720992727,0cyclictest11395-21apt-get00:15:010
27720992727,0cyclictest0-21swapper/021:50:140
27720992727,0cyclictest0-21swapper/019:25:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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