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2026-04-19 - 00:33
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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 Sat Apr 18, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19969562245186,47sleep40-21swapper/407:05:134
19969822243183,20sleep30-21swapper/307:05:363
19969932219188,20sleep50-21swapper/507:05:465
19971462217188,18sleep60-21swapper/607:07:556
19970332215185,19sleep70-21swapper/707:06:207
19970082214184,19sleep00-21swapper/007:05:570
19970832211182,19sleep10-21swapper/107:07:031
19991552210159,40sleep20-21swapper/207:08:562
199947399510,50cyclictest0-21swapper/411:57:584
199947899502,24cyclictest0-21swapper/608:27:186
199947899330,29cyclictest278-21plymouthd07:30:026
1999471993226,5cyclictest278-21plymouthd08:25:013
1999471993226,3cyclictest0-21swapper/312:15:023
199946699320,31cyclictest2081330-21sh09:40:012
199946699320,30cyclictest2078650-21apt09:35:012
199946199320,32cyclictest681-21dbus-daemon11:20:020
1999482993125,5cyclictest1-21systemd10:50:017
199948299310,2cyclictest369-21systemd-journal11:40:027
199947899310,29cyclictest369-21systemd-journal09:30:016
199947899310,28cyclictest0-21swapper/609:32:576
199947399310,30cyclictest2018892-21sh07:45:014
199947399310,29cyclictest369-21systemd-journal11:15:014
1999466993130,1cyclictest0-21swapper/211:57:582
1999464993130,0cyclictest0-21swapper/109:55:021
199946499310,30cyclictest2138149-21turbostat.cron11:25:011
199946499310,30cyclictest2046704-21apt-get08:37:591
199946199310,3cyclictest2148952-21idleruntime-cro11:45:020
199946199310,29cyclictest2030284-21apt-get08:07:590
199948299300,29cyclictest0-21swapper/712:30:027
199948299300,29cyclictest0-21swapper/707:52:597
1999478993028,1cyclictest0-21swapper/607:35:016
1999478993027,3cyclictest0-21swapper/612:15:026
199947899300,29cyclictest369-21systemd-journal09:15:006
199947899300,29cyclictest1-21systemd09:10:006
199947899300,0cyclictest0-21swapper/611:27:576
199947699300,2cyclictest369-21systemd-journal10:05:015
199947699300,29cyclictest1-21systemd09:50:015
199947399300,29cyclictest2073580-21date09:25:004
1999471993027,2cyclictest2056843-21cron08:55:003
199947199300,2cyclictest2168522-21sh12:20:023
199947199300,2cyclictest2037723-21sh08:20:013
1999466993026,3cyclictest2111221-21dump-pmu-power10:35:012
199946699300,2cyclictest2162920-21awk12:10:022
199946699300,29cyclictest0-21swapper/211:07:572
199946499302,0cyclictest0-21swapper/109:55:011
199946499300,30cyclictest33-21ksoftirqd/108:25:011
199946499300,29cyclictest2157596-21sed12:00:021
199946499300,29cyclictest2100474-21awk10:15:011
199946499300,1cyclictest201rcu_preempt11:47:581
1999482992928,1cyclictest0-21swapper/707:27:587
199948299290,28cyclictest2041325-21apt-get08:27:577
199948299290,28cyclictest0-21swapper/711:00:017
199948299290,28cyclictest0-21swapper/710:45:017
199948299290,28cyclictest0-21swapper/710:45:007
199948299290,28cyclictest0-21swapper/707:47:597
1999478992924,4cyclictest2149537-21apt-get11:47:586
199947899290,29cyclictest278-21plymouthd12:05:026
199947899290,28cyclictest0-21swapper/608:22:586
199947899290,1cyclictest2095690-21apt-get10:07:576
199947699290,28cyclictest2144141-21apt-get11:37:555
199947699290,28cyclictest0-21swapper/510:45:015
199947699290,28cyclictest0-21swapper/510:45:015
199947699290,28cyclictest0-21swapper/509:25:015
199947699290,28cyclictest0-21swapper/509:05:015
199947699290,1cyclictest2057469-21apt-get08:57:585
1999473992927,1cyclictest2035659-21apt-get08:17:584
1999473992927,1cyclictest2022205-21apt-get07:53:004
199947399290,29cyclictest2046081-21dump-pmu-power08:35:004
199947399290,1cyclictest0-21swapper/408:10:004
1999471992928,1cyclictest0-21swapper/309:40:013
1999471992928,1cyclictest0-21swapper/307:15:023
1999471992927,1cyclictest681-21dbus-daemon09:15:013
199947199290,28cyclictest0-21swapper/311:50:013
199947199290,28cyclictest0-21swapper/309:02:593
199947199290,28cyclictest0-21swapper/307:47:583
1999466992928,1cyclictest0-21swapper/208:42:592
1999466992927,1cyclictest2176604-21sh12:35:022
1999466992927,1cyclictest2097788-21awk10:10:012
199946699290,28cyclictest0-21swapper/208:50:012
199946699290,28cyclictest0-21swapper/207:47:582
199946699290,1cyclictest2105834-21sh10:25:002
199946699290,1cyclictest0-21swapper/211:22:582
199946499290,1cyclictest0-21swapper/108:20:001
199946199290,28cyclictest0-21swapper/010:57:580
199946199290,28cyclictest0-21swapper/010:27:570
199946199290,28cyclictest0-21swapper/008:20:010
199946199290,28cyclictest0-21swapper/008:02:580
1999482992826,1cyclictest1-21systemd11:10:017
199948299280,0cyclictest0-21swapper/709:05:007
199948299280,0cyclictest0-21swapper/708:20:017
1999478992827,1cyclictest0-21swapper/608:05:006
1999478992825,3cyclictest0-21swapper/608:07:586
199947899280,0cyclictest0-21swapper/608:48:036
1999476992827,1cyclictest2130684-21apt-get11:12:585
1999476992827,1cyclictest0-21swapper/507:17:575
1999476992826,1cyclictest2146850-21apt-get11:42:575
1999476992826,1cyclictest0-21swapper/511:02:595
199947699280,28cyclictest0-21swapper/511:25:025
199947699280,27cyclictest0-21swapper/508:27:565
199947699280,1cyclictest0-21swapper/510:15:005
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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