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2026-04-20 - 16:02
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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 Mon Apr 20, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4658542251187,22sleep50-21swapper/507:08:255
4637572221165,44sleep70-21swapper/707:06:107
4658882220190,19sleep30-21swapper/307:08:543
4658732219192,17sleep60-21swapper/607:08:426
4637972219188,20sleep20-21swapper/207:06:442
4637122219168,16sleep00-21swapper/007:05:300
4659152212159,17sleep10-21swapper/107:09:171
4637992212182,19sleep40-21swapper/407:06:474
466394995049,1cyclictest0-21swapper/511:10:015
466405994847,1cyclictest0-21swapper/711:10:017
466382994646,0cyclictest0-21swapper/211:10:012
466382993612,24cyclictest0-21swapper/210:24:372
46637999360,34cyclictest0-21swapper/108:00:011
46637699350,34cyclictest602777-21cron11:20:010
46637699350,29cyclictest1-21systemd08:10:010
46639899340,1cyclictest681-21dbus-daemon08:00:016
46637999340,33cyclictest278-21plymouthd11:50:011
46637999330,32cyclictest0-21swapper/107:12:571
466405993231,0cyclictest0-21swapper/712:37:597
46639899320,29cyclictest369-21systemd-journal08:55:016
466382993230,1cyclictest0-21swapper/212:37:592
46637999320,31cyclictest0-21swapper/112:17:581
46637999320,31cyclictest0-21swapper/109:35:021
46637999320,31cyclictest0-21swapper/109:27:591
46637999320,31cyclictest0-21swapper/107:32:581
46637699320,0cyclictest0-21swapper/011:57:570
46638299310,3cyclictest486157-21sh07:45:012
466376993124,6cyclictest494287-21gpgv08:00:010
46637699310,30cyclictest646716-21turbostat.cron12:40:010
46637699310,28cyclictest0-21swapper/007:40:000
466405993028,1cyclictest571063-21apt-get10:22:587
466405993028,1cyclictest489467-21apt-get07:52:587
46640599300,29cyclictest600082-21sh11:15:017
466394993030,0cyclictest0-21swapper/512:37:595
466384993028,1cyclictest0-21swapper/312:00:013
46638499300,29cyclictest681-21dbus-daemon08:45:013
46638499300,29cyclictest0-21swapper/310:05:023
46638299300,29cyclictest369-21systemd-journal11:15:002
466379993027,3cyclictest0-21swapper/112:15:001
46637999300,29cyclictest0-21swapper/108:05:001
466376993027,3cyclictest0-21swapper/011:47:570
46637699300,29cyclictest681-21dbus-daemon09:30:020
46637699300,29cyclictest613810-21sh11:40:010
466405992928,0cyclictest0-21swapper/708:27:577
466405992928,0cyclictest0-21swapper/708:27:567
466405992927,1cyclictest0-21swapper/710:07:567
466405992927,1cyclictest0-21swapper/707:32:577
46640599290,28cyclictest0-21swapper/710:27:577
46640599290,0cyclictest0-21swapper/707:12:577
466398992927,1cyclictest516675-21apt-get08:42:596
466398992927,1cyclictest505316-21systemd-run08:20:016
46639899290,28cyclictest0-21swapper/612:20:006
46639899290,28cyclictest0-21swapper/612:12:576
46639899290,28cyclictest0-21swapper/608:07:576
46639899290,28cyclictest0-21swapper/607:22:576
46639899290,1cyclictest538480-21apt-get09:22:596
46639899290,1cyclictest0-21swapper/610:57:576
466394992928,1cyclictest636314-21apt-get12:22:585
466394992927,1cyclictest0-21swapper/511:02:565
46639499290,28cyclictest681-21dbus-daemon11:25:015
46639499290,28cyclictest0-21swapper/510:24:395
46639499290,1cyclictest600085-21cron11:15:015
466389992927,1cyclictest0-21swapper/410:22:584
466389992927,1cyclictest0-21swapper/408:02:584
46638999290,2cyclictest632944-21munin-run12:15:014
46638999290,28cyclictest619211-21apt-get11:50:024
46638999290,28cyclictest0-21swapper/412:27:564
46638999290,28cyclictest0-21swapper/411:27:584
46638999290,28cyclictest0-21swapper/409:22:584
46638999290,1cyclictest518741-21idleruntime-cro08:45:014
46638999290,1cyclictest0-21swapper/411:00:014
46638499290,29cyclictest1-21systemd08:25:013
46638499290,29cyclictest0-21swapper/310:45:003
46638499290,28cyclictest0-21swapper/311:47:583
46638499290,28cyclictest0-21swapper/311:07:543
46638499290,28cyclictest0-21swapper/310:35:013
46638299290,28cyclictest0-21swapper/211:25:012
46638299290,1cyclictest0-21swapper/212:27:562
466379992926,3cyclictest0-21swapper/111:22:591
466379992923,5cyclictest0-21swapper/109:55:021
46637999290,28cyclictest592644-21apt-get11:02:571
46637999290,28cyclictest0-21swapper/109:42:591
46637999290,1cyclictest0-21swapper/109:20:021
466376992927,1cyclictest0-21swapper/007:17:560
46637699290,28cyclictest0-21swapper/012:15:000
46637699290,1cyclictest0-21swapper/010:42:590
466405992827,0cyclictest0-21swapper/710:52:567
466405992827,0cyclictest0-21swapper/708:42:597
46640599280,28cyclictest0-21swapper/709:25:027
46640599280,27cyclictest0-21swapper/709:07:557
466398992827,1cyclictest0-21swapper/609:02:586
46639899280,27cyclictest0-21swapper/609:27:586
466394992826,1cyclictest587247-21apt-get10:52:575
466394992826,1cyclictest562971-21apt-get10:07:565
46639499280,28cyclictest0-21swapper/507:12:585
466389992827,1cyclictest0-21swapper/409:15:024
466389992826,1cyclictest505258-21latency_hist08:20:004
466389992826,1cyclictest0-21swapper/411:07:544
46638499283,24cyclictest0-21swapper/310:24:373
466384992827,1cyclictest625488-21apt-get12:02:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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