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2026-04-02 - 16:39
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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 02, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15465052233177,18sleep20-21swapper/207:06:542
15467412228170,19sleep70-21swapper/707:09:327
15466982227171,18sleep00-21swapper/007:08:540
15467022218189,19sleep40-21swapper/407:08:584
15464012217187,20sleep10-21swapper/107:05:241
15466892215183,20sleep30-21swapper/307:08:493
15467302208181,17sleep50-21swapper/507:09:235
15464062208181,17sleep60-21swapper/607:05:306
16183672520,0sleep10-21swapper/109:43:001
154702699320,30cyclictest1679803-21cron11:35:007
1547012993228,3cyclictest1647488-21debian-sa110:35:003
1547010993230,1cyclictest0-21swapper/208:50:012
1547019993128,2cyclictest1549558-21cron07:15:015
1547019993127,3cyclictest1660950-21cron11:00:015
154701999310,30cyclictest1696315-21awk12:05:005
154701999310,29cyclictest1636713-21apt10:15:015
154701299310,30cyclictest1614907-21sh09:35:013
154702699300,29cyclictest0-21swapper/709:45:027
154701999300,29cyclictest1615537-21apt-get09:38:005
154701999300,29cyclictest1564146-21sh07:55:015
154701999300,29cyclictest0-21swapper/507:27:025
154701699300,29cyclictest1675051-21apt-get11:28:004
154701299300,1cyclictest0-21swapper/310:13:003
1547010993028,1cyclictest0-21swapper/208:58:002
1547007993028,1cyclictest1693577-21latency_hist12:00:001
154700799300,2cyclictest1561456-21latency_hist07:50:011
1547005993028,1cyclictest1609337-21unin-run09:25:010
1547005993027,2cyclictest369-21systemd-journal07:35:010
154700599300,29cyclictest0-21swapper/007:15:000
1547026992929,0cyclictest0-21swapper/708:43:007
1547026992927,1cyclictest1712453-21idleruntime-cro12:35:017
1547026992927,1cyclictest1712453-21idleruntime-cro12:35:017
1547026992927,1cyclictest0-21swapper/712:00:007
154702699290,1cyclictest0-21swapper/710:05:017
1547021992927,1cyclictest278-21plymouthd11:35:006
1547021992927,1cyclictest1567601-21apt08:05:016
1547021992927,1cyclictest1567601-21apt08:05:006
154702199290,28cyclictest1677154-21systemd-run11:30:016
154702199290,1cyclictest1694221-21apt-get12:03:016
1547019992927,2cyclictest0-21swapper/509:18:025
1547019992927,1cyclictest278-21plymouthd10:20:015
1547019992927,1cyclictest1671721-21latency_hist11:20:005
1547019992926,2cyclictest1680692-21apt-get11:37:595
154701999290,28cyclictest0-21swapper/511:05:015
154701999290,1cyclictest1648110-21apt-get10:37:595
154701999290,1cyclictest0-21swapper/511:43:015
154701999290,1cyclictest0-21swapper/508:00:015
154701699290,28cyclictest1648114-21http10:37:594
154701699290,28cyclictest0-21swapper/412:15:014
154701699290,28cyclictest0-21swapper/412:03:004
154701699290,28cyclictest0-21swapper/411:23:004
154701699290,28cyclictest0-21swapper/408:55:024
154701699290,28cyclictest0-21swapper/408:43:004
154701699290,28cyclictest0-21swapper/408:15:024
154701699290,1cyclictest681-21dbus-daemon09:20:024
1547012992927,1cyclictest1588095-21apt-get08:48:003
1547012992926,2cyclictest369-21systemd-journal10:20:013
154701299290,29cyclictest1644799-21sh10:30:013
154701299290,29cyclictest0-21swapper/309:15:023
154701299290,1cyclictest1561489-21awk07:50:013
154701299290,1cyclictest1-21systemd11:15:013
1547010992927,1cyclictest1609279-21sh09:25:022
1547010992927,1cyclictest0-21swapper/212:03:012
154701099290,28cyclictest0-21swapper/210:18:002
154701099290,28cyclictest0-21swapper/207:40:012
1547007992927,1cyclictest0-21swapper/111:48:011
1547007992927,1cyclictest0-21swapper/108:25:021
154700799290,28cyclictest0-21swapper/108:55:021
154700799290,1cyclictest1636746-21awk10:15:001
154700799290,1cyclictest0-21swapper/111:35:001
1547005992927,1cyclictest0-21swapper/012:25:000
154700599290,28cyclictest1653508-21apt-get10:47:590
154700599290,28cyclictest0-21swapper/012:08:000
154700599290,28cyclictest0-21swapper/008:47:590
154700599290,1cyclictest1702288-21http12:17:590
1547026992827,1cyclictest0-21swapper/710:40:007
1547026992827,1cyclictest0-21swapper/709:08:017
1547026992826,1cyclictest1715135-21cron12:40:017
1547026992826,1cyclictest1715135-21cron12:40:007
1547026992826,1cyclictest0-21swapper/707:55:017
1547021992827,1cyclictest0-21swapper/608:55:026
1547021992827,1cyclictest0-21swapper/608:38:016
1547021992827,1cyclictest0-21swapper/608:30:016
1547021992827,1cyclictest0-21swapper/608:18:016
1547021992826,1cyclictest1710382-21apt-get12:32:596
1547021992826,1cyclictest1710382-21apt-get12:32:596
1547021992826,1cyclictest1672365-21http11:23:006
154702199280,1cyclictest1551681-21apt-get07:22:566
154702199280,0cyclictest0-21swapper/612:22:576
1547019992827,1cyclictest0-21swapper/509:35:025
1547019992826,2cyclictest0-21swapper/508:27:595
1547019992825,3cyclictest0-21swapper/511:48:015
154701999280,1cyclictest1712486-21awk12:35:015
154701999280,1cyclictest1712486-21awk12:35:005
1547016992828,0cyclictest0-21swapper/410:08:004
1547016992826,1cyclictest1590190-21awk08:50:024
1547016992824,3cyclictest1558000-21latency_hist07:40:014
154701699280,28cyclictest0-21swapper/411:35:014
154701699280,28cyclictest0-21swapper/409:30:024
154701699280,0cyclictest0-21swapper/408:28:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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