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2026-03-26 - 06:02
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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 Thu Mar 26, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7798342236174,19sleep20-21swapper/219:05:292
7798202229174,43sleep60-21swapper/619:05:166
7799662221192,19sleep40-21swapper/419:07:244
7799432218166,17sleep10-21swapper/119:07:051
7799802214185,19sleep00-21swapper/019:07:360
7798622213184,18sleep30-21swapper/319:05:543
7820882212184,18sleep70-21swapper/719:10:007
7798282200172,18sleep50-21swapper/519:05:235
78233399480,24cyclictest0-21swapper/620:13:126
78233699330,32cyclictest369-21systemd-journal22:35:017
78233699330,32cyclictest369-21systemd-journal22:35:007
782333993232,0cyclictest0-21swapper/622:20:006
78232799324,28cyclictest0-21swapper/421:00:014
782327993229,2cyclictest949002-21debian-sa100:15:024
78232299320,31cyclictest0-21swapper/220:25:012
782331993127,3cyclictest0-21swapper/500:00:015
782320993129,1cyclictest0-21swapper/119:45:021
782316993128,2cyclictest801991-21apt19:45:020
78231699310,30cyclictest804680-21dump-pmu-power19:50:020
78233699300,30cyclictest831874-21munin-run20:40:007
78233699300,2cyclictest922067-21apt23:25:017
78233699300,29cyclictest913997-21munin-run23:10:027
78233699300,29cyclictest911304-21turbostat.cron23:05:027
78233699300,29cyclictest823801-21apt20:25:017
782333993027,2cyclictest862104-21apt-get21:38:016
78233399300,29cyclictest943667-21systemd-run00:05:026
78232799300,29cyclictest888996-21munin-run22:25:014
78232799300,29cyclictest888996-21munin-run22:25:004
78232799300,29cyclictest839937-21sh20:55:004
78232599300,29cyclictest835193-21apt-get20:48:013
78232599300,29cyclictest786194-21apt-get19:18:003
782322993028,1cyclictest878524-21apt-get22:08:012
782320993028,1cyclictest848645-21apt-get21:13:011
782320993027,2cyclictest804679-21apt19:50:011
78232099300,29cyclictest1-21systemd00:00:001
782336992927,1cyclictest799286-21cron19:40:027
782336992927,1cyclictest0-21swapper/700:25:027
78233699290,28cyclictest0-21swapper/720:35:017
78233699290,1cyclictest0-21swapper/721:50:007
782333992927,1cyclictest0-21swapper/621:55:006
78233399291,28cyclictest0-21swapper/600:23:016
78233399290,29cyclictest681-21dbus-daemon22:30:016
78233399290,29cyclictest278-21plymouthd20:35:016
78233399290,28cyclictest0-21swapper/623:03:006
78233399290,28cyclictest0-21swapper/621:08:006
78233199290,28cyclictest818173-21awk20:15:015
78233199290,28cyclictest0-21swapper/522:18:015
78233199290,28cyclictest0-21swapper/521:05:015
78233199290,28cyclictest0-21swapper/519:43:025
78233199290,28cyclictest0-21swapper/519:28:025
78233199290,1cyclictest946940-21apt-get00:13:015
782327992928,1cyclictest0-21swapper/421:05:014
78232799290,28cyclictest791589-21apt-get19:28:024
78232799290,28cyclictest0-21swapper/423:28:014
78232799290,28cyclictest0-21swapper/422:28:004
78232799290,1cyclictest681-21dbus-daemon23:35:014
782325992927,1cyclictest0-21swapper/321:05:013
78232599290,29cyclictest0-21swapper/322:45:013
78232599290,28cyclictest0-21swapper/323:00:023
78232599290,1cyclictest949001-21apt00:15:023
782322992927,1cyclictest920005-21apt-get23:23:012
782322992927,1cyclictest851335-21apt-get21:18:012
782322992927,1cyclictest817552-21fwupd20:13:122
782322992925,3cyclictest946312-21sh00:10:012
78232299290,28cyclictest0-21swapper/222:48:042
78232299290,28cyclictest0-21swapper/219:55:012
78232299290,1cyclictest917301-21apt-get23:18:002
78232299290,1cyclictest278-21plymouthd22:40:022
782320992927,1cyclictest311rcuc/122:30:001
78232099290,28cyclictest837875-21apt-get20:53:001
78232099290,1cyclictest952342-21apt-get00:23:021
78232099290,1cyclictest0-21swapper/120:08:021
78231699290,1cyclictest0-21swapper/022:20:020
78231699290,1cyclictest0-21swapper/020:15:000
782336992826,1cyclictest856101-21cron21:25:017
78233699280,27cyclictest0-21swapper/723:33:027
78233699280,1cyclictest0-21swapper/722:08:027
78233699280,0cyclictest0-21swapper/723:58:017
78233699280,0cyclictest0-21swapper/721:40:017
782333992827,1cyclictest0-21swapper/621:15:016
782333992825,2cyclictest935528-21dump-pmu-power23:50:026
782333992824,3cyclictest812755-21turbostat.cron20:05:016
78233399280,28cyclictest0-21swapper/623:28:006
78233399280,27cyclictest78-21ksoftirqd/623:18:016
782331992828,0cyclictest0-21swapper/520:48:005
782331992827,1cyclictest0-21swapper/523:00:025
782331992826,1cyclictest824426-21apt-get20:28:025
782327992827,0cyclictest0-21swapper/422:45:014
78232799280,27cyclictest0-21swapper/422:08:024
78232799280,27cyclictest0-21swapper/420:13:014
78232799280,27cyclictest0-21swapper/420:08:024
78232799280,27cyclictest0-21swapper/400:30:004
782325992827,1cyclictest788900-21apt-get19:23:023
782325992827,0cyclictest0-21swapper/323:10:013
782325992826,1cyclictest903224-21dump-pmu-power22:50:003
782322992826,1cyclictest859418-21apt-get21:33:032
782322992826,1cyclictest786194-21apt-get19:18:002
782322992826,1cyclictest1-21systemd23:00:012
782322992825,2cyclictest951691-21sh00:20:022
78232299280,0cyclictest0-21swapper/221:23:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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