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2026-04-09 - 08:30
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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 Thu Apr 09, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29287682233178,18sleep70-21swapper/719:06:547
29286662232176,45sleep60-21swapper/619:05:256
29309022218187,19sleep40-21swapper/419:09:404
29287802218189,19sleep10-21swapper/119:07:051
29308752211184,18sleep50-21swapper/519:09:185
29286512211181,19sleep20-21swapper/219:05:132
29286902210178,20sleep30-21swapper/319:05:453
29287992208177,20sleep00-21swapper/019:07:200
2931171993533,1cyclictest3021087-21sh21:55:002
2931184993427,6cyclictest2996851-21idleruntime-cro21:10:017
2931184993328,4cyclictest3088718-21basename00:00:007
293116499330,28cyclictest2943113-21apt-get19:33:000
2931178993228,4cyclictest0-21swapper/521:40:015
2931178993228,4cyclictest0-21swapper/521:40:005
293117899320,1cyclictest2983758-21apt-get20:47:595
293118499310,30cyclictest0-21swapper/723:32:597
293118499310,2cyclictest2983135-21turbostat.cron20:45:017
2931182993127,3cyclictest3039941-21cron22:30:026
293117199310,3cyclictest3096835-21turbostat.cron00:15:012
293116499310,3cyclictest369-21systemd-journal22:35:010
293116499310,30cyclictest369-21systemd-journal20:35:010
2931184993028,1cyclictest3048911-21apt-get22:47:597
293118499300,1cyclictest0-21swapper/720:52:587
293118299300,29cyclictest3024416-21apt-get22:02:596
2931178993027,2cyclictest2948507-21apt-get19:43:005
293117899300,29cyclictest1-21systemd20:55:015
293117899300,0cyclictest0-21swapper/521:17:595
2931176993029,1cyclictest3062370-21http23:12:594
293117699300,29cyclictest0-21swapper/400:27:584
2931173993030,0cyclictest0-21swapper/323:12:593
2931173993029,1cyclictest491rcuc/320:42:593
2931173993028,1cyclictest491rcuc/319:15:003
2931173993028,1cyclictest278-21plymouthd00:05:003
2931173993028,1cyclictest0-21swapper/322:47:583
2931173993027,2cyclictest369-21systemd-journal21:25:013
293117399300,29cyclictest2993891-21sh21:05:013
293117399300,28cyclictest201rcu_preempt22:07:593
293117199300,2cyclictest2978063-21date20:35:012
293117199300,29cyclictest1-21systemd00:35:002
2931166993029,1cyclictest278-21plymouthd00:35:011
293116699300,2cyclictest3007615-21cron21:30:011
2931164993027,2cyclictest369-21systemd-journal23:10:020
293116499300,2cyclictest3059053-21sh23:05:020
2931184992925,3cyclictest0-21swapper/720:47:597
293118499290,28cyclictest681-21dbus-daemon23:15:027
293118499290,28cyclictest0-21swapper/722:12:597
293118499290,28cyclictest0-21swapper/720:05:017
293118499290,1cyclictest0-21swapper/723:10:027
293118299290,28cyclictest0-21swapper/622:22:596
293118299290,28cyclictest0-21swapper/621:47:596
293118299290,28cyclictest0-21swapper/621:32:596
293118299290,28cyclictest0-21swapper/621:32:596
293117899290,28cyclictest0-21swapper/523:27:595
293117899290,28cyclictest0-21swapper/519:57:575
293117899290,1cyclictest2940424-21apt-get19:27:585
2931176992927,1cyclictest0-21swapper/420:13:004
2931176992927,1cyclictest0-21swapper/419:50:014
293117699290,28cyclictest3021709-21apt-get21:57:594
293117699290,28cyclictest0-21swapper/423:22:584
293117699290,28cyclictest0-21swapper/423:17:584
293117699290,28cyclictest0-21swapper/400:12:594
293117699290,1cyclictest0-21swapper/419:55:014
293117699290,1cyclictest0-21swapper/400:40:014
293117399290,29cyclictest51-21ksoftirqd/320:50:003
293117399290,28cyclictest0-21swapper/323:30:023
293117399290,1cyclictest0-21swapper/323:35:003
293117399290,1cyclictest0-21swapper/321:30:013
293117399290,1cyclictest0-21swapper/320:05:003
2931171992928,1cyclictest0-21swapper/200:40:012
2931171992927,1cyclictest0-21swapper/219:50:012
293117199290,28cyclictest3067138-21munin-run23:20:022
293117199290,28cyclictest2970041-21apt-get20:22:592
293117199290,28cyclictest0-21swapper/223:32:592
293117199290,28cyclictest0-21swapper/223:03:082
293117199290,28cyclictest0-21swapper/222:40:022
293117199290,28cyclictest0-21swapper/222:33:012
293117199290,28cyclictest0-21swapper/221:47:592
293116699290,28cyclictest0-21swapper/122:53:031
293116699290,28cyclictest0-21swapper/121:02:591
293116699290,1cyclictest3029177-21munin-run22:10:011
293116699290,1cyclictest0-21swapper/123:08:021
293116699290,1cyclictest0-21swapper/100:27:591
293116499290,28cyclictest0-21swapper/000:07:590
293116499290,1cyclictest2991837-21apt-get21:02:590
2931184992826,2cyclictest0-21swapper/722:07:597
2931182992827,1cyclictest0-21swapper/623:47:576
2931182992827,1cyclictest0-21swapper/600:22:586
293118299280,0cyclictest0-21swapper/620:35:016
2931178992827,1cyclictest0-21swapper/522:53:035
293117899280,0cyclictest0-21swapper/500:02:595
2931176992827,1cyclictest0-21swapper/423:53:004
2931176992826,1cyclictest2961364-21awk20:05:014
2931176992824,3cyclictest369-21systemd-journal21:05:014
2931173992827,1cyclictest3107603-21sh00:35:013
2931173992826,1cyclictest491rcuc/323:40:003
2931173992820,8cyclictest0-21swapper/322:35:023
293117399280,28cyclictest0-21swapper/321:35:013
293117399280,28cyclictest0-21swapper/321:35:003
293117399280,28cyclictest0-21swapper/321:17:593
293117399280,0cyclictest0-21swapper/322:12:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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