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2026-04-01 - 09:50
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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 100 highest latencies:
System rack8slot4.osadl.org (updated Wed Apr 01, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5698142245188,45sleep40-21swapper/419:05:244
5699172225170,18sleep60-21swapper/619:06:546
5720072224169,18sleep70-21swapper/719:09:047
5719852223167,18sleep30-21swapper/319:08:443
5697912218188,19sleep10-21swapper/119:05:051
5720592209180,19sleep20-21swapper/219:09:482
5699672209178,20sleep00-21swapper/019:07:360
5699252208179,18sleep50-21swapper/519:07:025
57231799330,2cyclictest741634-21munin-run00:25:026
57230399320,30cyclictest369-21systemd-journal21:25:011
57232099310,30cyclictest699909-21sh23:05:017
572317993127,3cyclictest0-21swapper/621:05:016
57231799310,0cyclictest0-21swapper/623:48:036
57230999310,28cyclictest0-21swapper/300:17:573
572306993128,2cyclictest654523-21taskset21:43:012
57232099300,29cyclictest0-21swapper/719:50:027
572317993027,3cyclictest0-21swapper/621:33:016
57231599300,29cyclictest735479-21dump-pmu-power00:10:015
572309993023,1cyclictest0-21swapper/322:58:003
57230999300,2cyclictest710950-21apt23:25:003
57230999300,29cyclictest278-21plymouthd21:30:013
57230999300,29cyclictest1-21systemd21:50:003
57230999300,0cyclictest0-21swapper/320:08:013
57230699300,2cyclictest702655-21apt-key23:10:012
57230699300,29cyclictest278-21plymouthd20:40:012
572303993028,1cyclictest0-21swapper/122:40:001
57230399300,2cyclictest610542-21dump-pmu-power20:20:011
57230399300,29cyclictest643111-21cron21:20:011
57230399300,29cyclictest369-21systemd-journal22:20:001
57229999300,29cyclictest0-21swapper/022:20:010
572320992928,1cyclictest0-21swapper/723:58:007
572320992927,1cyclictest1-21systemd20:45:027
57232099290,28cyclictest0-21swapper/723:28:027
57232099290,28cyclictest0-21swapper/722:37:597
57232099290,28cyclictest0-21swapper/721:58:027
57232099290,28cyclictest0-21swapper/720:38:007
57232099290,1cyclictest638352-21apt-get21:12:587
57232099290,1cyclictest0-21swapper/720:13:027
57231799290,28cyclictest0-21swapper/623:05:016
57231799290,28cyclictest0-21swapper/620:45:026
57231799290,28cyclictest0-21swapper/619:33:016
57231799290,28cyclictest0-21swapper/600:30:026
572315992927,1cyclictest643109-21turbostat.cron21:20:005
572315992926,2cyclictest675413-21turbostat.cron22:20:015
57231599290,28cyclictest0-21swapper/522:58:015
57231599290,28cyclictest0-21swapper/519:15:005
57231599290,1cyclictest0-21swapper/522:43:015
572311992928,1cyclictest0-21swapper/423:35:014
572311992928,1cyclictest0-21swapper/423:35:014
572311992927,1cyclictest0-21swapper/423:53:004
572311992926,2cyclictest0-21swapper/422:10:014
57231199290,28cyclictest0-21swapper/423:05:014
57231199290,28cyclictest0-21swapper/422:15:014
57231199290,28cyclictest0-21swapper/422:03:014
57231199290,28cyclictest0-21swapper/421:40:014
572309992927,1cyclictest745198-21apt-get00:33:033
572309992925,1cyclictest0-21swapper/322:30:013
57230999290,28cyclictest605787-21apt-get20:13:013
57230999290,28cyclictest0-21swapper/323:38:003
57230999290,28cyclictest0-21swapper/323:37:593
57230999290,28cyclictest0-21swapper/320:48:003
572306992927,1cyclictest675979-21latency_hist22:20:012
57230699290,29cyclictest0-21swapper/200:00:022
572303992927,1cyclictest0-21swapper/121:35:001
572303992927,1cyclictest0-21swapper/100:03:011
57230399290,28cyclictest0-21swapper/123:00:011
572299992927,1cyclictest637733-21diskmemload21:10:010
572299992927,1cyclictest0-21swapper/023:08:010
57229999290,29cyclictest0-21swapper/019:28:030
57232099280,28cyclictest714525-21apt-get23:33:017
57232099280,28cyclictest714525-21apt-get23:33:007
57232099280,28cyclictest657206-21apt-get21:47:597
57232099280,28cyclictest0-21swapper/721:25:017
57232099280,28cyclictest0-21swapper/700:10:017
57232099280,1cyclictest0-21swapper/719:57:597
572317992827,1cyclictest0-21swapper/621:15:006
572317992827,1cyclictest0-21swapper/620:47:596
57231799280,27cyclictest0-21swapper/622:08:006
572315992827,1cyclictest0-21swapper/521:35:015
57231599280,28cyclictest0-21swapper/522:35:015
57231599280,28cyclictest0-21swapper/520:40:025
57231599280,27cyclictest0-21swapper/500:28:005
572311992826,1cyclictest0-21swapper/422:33:024
57231199280,27cyclictest0-21swapper/423:57:594
57231199280,27cyclictest0-21swapper/419:25:014
57231199280,0cyclictest0-21swapper/423:22:594
572309992828,0cyclictest0-21swapper/321:10:013
572309992827,1cyclictest0-21swapper/320:28:013
572309992825,0cyclictest0-21swapper/321:33:013
572309992825,0cyclictest0-21swapper/321:05:003
572309992825,0cyclictest0-21swapper/319:33:103
572309992824,3cyclictest640411-21sh21:15:013
57230999280,0cyclictest0-21swapper/323:10:023
57230999280,0cyclictest0-21swapper/320:33:103
572306992828,0cyclictest0-21swapper/223:23:002
572306992827,1cyclictest724669-21sh23:50:012
572306992827,1cyclictest672755-21idleruntime-cro22:15:002
572306992827,1cyclictest0-21swapper/223:40:012
572306992827,1cyclictest0-21swapper/223:40:002
572306992827,1cyclictest0-21swapper/220:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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