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2026-03-22 - 04:42
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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 Sun Mar 22, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37586662224173,40sleep70-21swapper/719:09:177
37564632224163,19sleep30-21swapper/319:05:273
37564842220168,17sleep60-21swapper/619:05:456
37586162218189,19sleep40-21swapper/419:08:334
37587082216186,19sleep10-21swapper/119:09:511
37564402212159,17sleep00-21swapper/019:05:080
37585402211177,21sleep20-21swapper/219:08:152
37565302211159,17sleep50-21swapper/519:06:245
3758966995858,0cyclictest0-21swapper/620:15:016
3758962993227,4cyclictest0-21swapper/522:45:015
3758962993128,2cyclictest3805278-21sh20:35:005
375895399310,30cyclictest3819052-21sh21:00:012
3758967993028,2cyclictest958-21gmain19:55:017
3758967993028,1cyclictest3770910-21apt-get19:33:037
375896799300,29cyclictest681-21dbus-daemon22:05:007
3758962993027,2cyclictest3901009-21apt-get23:33:025
3758962993027,2cyclictest3856768-21latency_hist22:10:005
375896299300,29cyclictest3883947-21sh23:00:005
375896099300,29cyclictest3870232-21idleruntime-cro22:35:004
3758953993028,1cyclictest0-21swapper/219:38:022
3758951993028,1cyclictest0-21swapper/123:03:021
375894799300,29cyclictest3819703-21apt-get21:03:030
3758967992927,1cyclictest0-21swapper/722:52:597
3758967992927,1cyclictest0-21swapper/722:48:007
3758967992927,1cyclictest0-21swapper/700:00:007
375896799290,28cyclictest0-21swapper/723:33:017
375896799290,28cyclictest0-21swapper/721:28:037
375896799290,28cyclictest0-21swapper/720:13:047
375896799290,28cyclictest0-21swapper/700:30:007
3758966992927,1cyclictest3773599-21apt-get19:38:026
375896699290,28cyclictest0-21swapper/623:28:036
375896699290,28cyclictest0-21swapper/620:05:006
375896699290,1cyclictest3838541-21apt-get21:38:016
3758962992926,3cyclictest0-21swapper/523:50:015
375896299290,28cyclictest3825080-21apt-get21:13:045
375896299290,28cyclictest0-21swapper/521:50:005
375896299290,28cyclictest0-21swapper/521:05:015
375896299290,28cyclictest0-21swapper/520:40:015
375896299290,28cyclictest0-21swapper/520:05:015
3758960992928,1cyclictest0-21swapper/420:48:004
3758960992927,1cyclictest38358582sleep421:33:034
3758960992927,1cyclictest0-21swapper/421:58:024
375896099290,28cyclictest0-21swapper/420:58:004
375896099290,28cyclictest0-21swapper/420:43:034
3758956992927,1cyclictest3849313-21apt-get21:58:023
375895699290,28cyclictest3762826-21apt-get19:18:023
375895699290,28cyclictest0-21swapper/321:33:023
375895699290,28cyclictest0-21swapper/320:38:013
375895699290,28cyclictest0-21swapper/319:23:023
375895699290,28cyclictest0-21swapper/300:38:023
375895699290,1cyclictest3811619-21apt-get20:48:003
375895699290,1cyclictest0-21swapper/300:05:023
3758953992928,1cyclictest0-21swapper/222:45:012
3758953992928,0cyclictest0-21swapper/200:33:032
375895399290,28cyclictest3814305-21apt-get20:53:012
375895399290,28cyclictest0-21swapper/220:38:022
375895399290,28cyclictest0-21swapper/219:48:012
375895399290,28cyclictest0-21swapper/200:25:012
375895399290,28cyclictest0-21swapper/200:08:022
375895199290,29cyclictest0-21swapper/122:30:011
375895199290,29cyclictest0-21swapper/122:30:001
375895199290,28cyclictest0-21swapper/121:33:021
375895199290,28cyclictest0-21swapper/119:38:011
375894799290,28cyclictest0-21swapper/021:50:010
375894799290,28cyclictest0-21swapper/021:18:020
375894799290,1cyclictest3897696-21sh23:25:020
375894799290,1cyclictest3827132-21sh21:15:000
3758967992827,0cyclictest0-21swapper/723:25:027
375896799280,28cyclictest3917477-21http00:03:027
375896799280,28cyclictest0-21swapper/723:10:027
375896799280,28cyclictest0-21swapper/720:20:017
375896799280,0cyclictest0-21swapper/721:03:037
375896799280,0cyclictest0-21swapper/700:33:027
3758966992827,1cyclictest3922276-21apt-config00:10:016
3758966992826,1cyclictest3894723-21apt23:20:016
375896699280,27cyclictest0-21swapper/621:58:026
375896699280,27cyclictest0-21swapper/619:48:026
3758962992827,1cyclictest0-21swapper/522:48:015
3758962992827,1cyclictest0-21swapper/500:30:015
3758962992825,2cyclictest3832538-21debian-sa121:25:005
375896299280,27cyclictest0-21swapper/523:55:015
375896299280,27cyclictest0-21swapper/522:13:025
375896299280,27cyclictest0-21swapper/521:45:015
3758960992826,1cyclictest1-21systemd22:25:014
3758960992826,1cyclictest0-21swapper/419:50:024
3758960992826,1cyclictest0-21swapper/419:40:014
375896099280,28cyclictest0-21swapper/423:00:024
375896099280,27cyclictest0-21swapper/421:53:014
375896099280,27cyclictest0-21swapper/419:23:024
3758956992827,1cyclictest681-21dbus-daemon20:05:013
3758956992827,1cyclictest0-21swapper/323:18:013
3758956992826,1cyclictest3923109-21apt-get00:13:023
3758956992826,1cyclictest3903065-21sh23:35:013
3758956992826,1cyclictest0-21swapper/322:10:013
375895699280,28cyclictest0-21swapper/322:25:003
375895699280,28cyclictest0-21swapper/319:50:013
3758953992827,1cyclictest0-21swapper/221:03:032
3758953992826,1cyclictest3792452-21apt-get20:13:042
3758953992826,1cyclictest3783741-21apt19:55:002
3758953992826,1cyclictest0-21swapper/223:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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