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2026-03-19 - 16:09
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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 Mar 19, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35223242225169,45sleep70-21swapper/707:06:567
35244672224167,17sleep40-21swapper/407:09:504
35222442217187,19sleep10-21swapper/107:05:451
35223592216189,17sleep60-21swapper/607:07:266
35223472216186,19sleep30-21swapper/307:07:163
35222812213184,19sleep20-21swapper/207:06:182
35244242212182,19sleep00-21swapper/007:09:140
35223042207176,20sleep50-21swapper/507:06:365
3524724993533,1cyclictest0-21swapper/708:30:017
3524724993230,1cyclictest681-21dbus-daemon12:05:027
3524707993230,1cyclictest3669854-21latency_hist11:35:021
3524718993128,2cyclictest0-21swapper/508:20:015
352471699310,3cyclictest369-21systemd-journal11:50:024
352471699310,1cyclictest1-21systemd12:05:014
352471699310,1cyclictest0-21swapper/407:50:024
352471399310,30cyclictest3625670-21apt10:15:003
352470799310,3cyclictest369-21systemd-journal11:25:011
3524724993027,2cyclictest3565932-21apt08:25:007
352471699300,2cyclictest369-21systemd-journal08:30:014
3524713993028,1cyclictest3704777-21cron12:40:013
352471199300,29cyclictest3606824-21chrt09:40:012
3524707993028,1cyclictest3664523-21apt-get11:28:011
3524707993028,1cyclictest3645406-21apt-get10:53:021
3524707993028,1cyclictest3591307-21apt-get09:13:041
352470799300,29cyclictest3599390-21apt-get09:28:031
352470799300,29cyclictest278-21plymouthd12:15:021
3524702993027,2cyclictest3670158-21apt-get11:38:010
3524724992928,1cyclictest0-21swapper/707:38:017
3524724992927,1cyclictest3582960-21apt-get08:58:027
352472499290,29cyclictest0-21swapper/708:00:017
352472499290,28cyclictest0-21swapper/710:58:047
352472499290,1cyclictest3536664-21apt-get07:33:027
352472299290,28cyclictest3694661-21apt-get12:23:006
352472299290,28cyclictest0-21swapper/611:48:006
352472299290,28cyclictest0-21swapper/611:08:006
352472299290,28cyclictest0-21swapper/610:28:016
352472299290,28cyclictest0-21swapper/610:05:006
352472299290,28cyclictest0-21swapper/609:48:026
352472299290,28cyclictest0-21swapper/608:50:016
352472299290,28cyclictest0-21swapper/607:35:016
352472299290,28cyclictest0-21swapper/607:18:036
3524718992927,2cyclictest3524694-21cyclictest11:23:035
352471899290,28cyclictest0-21swapper/509:18:005
352471899290,1cyclictest0-21swapper/509:30:015
352471899290,1cyclictest0-21swapper/509:05:015
3524716992927,1cyclictest0-21swapper/411:45:014
3524716992926,2cyclictest3617589-21sh10:00:014
352471699290,28cyclictest0-21swapper/411:03:024
352471699290,28cyclictest0-21swapper/408:23:024
352471699290,1cyclictest3689264-21apt-get12:13:014
352471399290,28cyclictest0-21swapper/311:08:013
352471399290,28cyclictest0-21swapper/310:43:023
352471399290,28cyclictest0-21swapper/310:43:023
352471399290,1cyclictest3610156-21apt-get09:48:013
352471399290,1cyclictest0-21swapper/310:00:013
3524711992927,1cyclictest0-21swapper/211:35:022
352471199290,28cyclictest0-21swapper/210:33:022
352471199290,28cyclictest0-21swapper/210:13:022
352471199290,28cyclictest0-21swapper/208:48:032
352471199290,1cyclictest3648097-21apt-get10:58:032
3524707992927,1cyclictest3533343-21sh07:25:011
352470799290,29cyclictest3652863-21apt11:05:001
352470799290,28cyclictest0-21swapper/109:23:021
352470799290,28cyclictest0-21swapper/107:48:021
3524702992927,2cyclictest0-21swapper/011:10:020
3524702992927,1cyclictest278-21plymouthd09:50:010
352470299290,29cyclictest278-21plymouthd12:20:010
352470299290,28cyclictest3574638-21apt-get08:43:030
352470299290,28cyclictest0-21swapper/008:38:020
3524724992828,0cyclictest0-21swapper/711:30:017
3524724992827,1cyclictest0-21swapper/707:53:037
352472499280,28cyclictest3590715-21systemd-run09:10:007
352472499280,0cyclictest0-21swapper/712:13:007
3524722992828,0cyclictest0-21swapper/608:23:016
3524722992827,1cyclictest3552840-21apt-get08:03:026
352472299280,28cyclictest0-21swapper/610:55:026
3524718992827,1cyclictest0-21swapper/512:15:025
3524718992827,1cyclictest0-21swapper/507:28:025
352471899280,28cyclictest69-21ksoftirqd/509:53:045
352471899280,28cyclictest0-21swapper/511:45:025
352471899280,28cyclictest0-21swapper/511:35:015
352471899280,28cyclictest0-21swapper/510:35:005
352471899280,27cyclictest0-21swapper/510:38:025
352471899280,27cyclictest0-21swapper/510:38:015
352471899280,27cyclictest0-21swapper/507:23:035
352471899280,1cyclictest0-21swapper/510:43:015
352471899280,1cyclictest0-21swapper/510:43:015
3524716992827,1cyclictest1-21systemd09:45:004
3524716992827,1cyclictest0-21swapper/410:30:014
3524716992827,1cyclictest0-21swapper/408:20:014
3524716992827,1cyclictest0-21swapper/407:28:024
352471699280,0cyclictest0-21swapper/408:13:024
3524713992828,0cyclictest0-21swapper/312:03:033
3524713992828,0cyclictest0-21swapper/310:23:023
352471199280,28cyclictest0-21swapper/210:55:002
352471199280,28cyclictest0-21swapper/208:55:012
3524707992827,1cyclictest3593994-21apt-get09:18:011
3524707992827,1cyclictest0-21swapper/111:40:021
3524707992826,1cyclictest3656437-21apt-get11:13:011
352470799280,28cyclictest0-21swapper/108:50:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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