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2026-03-30 - 12:49
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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 Mon Mar 30, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20065822245187,47sleep60-21swapper/619:09:156
20065342240185,17sleep50-21swapper/519:08:335
20044942221167,18sleep70-21swapper/719:07:077
20065302218188,19sleep10-21swapper/119:08:301
20065882217184,21sleep30-21swapper/319:09:203
20065292211182,19sleep00-21swapper/019:08:290
20043882208181,18sleep20-21swapper/219:05:342
20043702207175,20sleep40-21swapper/419:05:194
2006882993327,5cyclictest2061549-21turbostat20:50:017
2006876993228,3cyclictest2164938-21latency_hist00:00:015
2006867993232,0cyclictest0-21swapper/200:40:012
200688299310,0cyclictest0-21swapper/721:18:017
200687999310,3cyclictest2178419-21debian-sa100:25:016
200687999310,30cyclictest2037086-21awk20:05:016
2006882993028,1cyclictest2118927-21systemd-run22:35:027
2006882993028,1cyclictest2097701-21apt-get21:58:027
2006882993028,1cyclictest2097701-21apt-get21:58:017
2006882993027,3cyclictest16450irq/4-ttyS022:15:027
2006882993026,3cyclictest2154788-21apt-get23:43:007
200688299300,29cyclictest2115935-21turbostat.cron22:30:027
2006879993027,2cyclictest2080671-21dump-pmu-power21:25:006
200687999300,29cyclictest2056794-21apt-get20:43:006
200687999300,29cyclictest0-21swapper/623:30:026
200687399301,1cyclictest2124281-21sh22:45:024
2006871993028,1cyclictest2178919-21updatedb.plocat00:26:443
2006871993028,1cyclictest2097701-21apt-get21:58:023
2006871993028,1cyclictest2097701-21apt-get21:58:023
2006871993028,1cyclictest0-21swapper/323:53:003
200687199300,29cyclictest2023578-21dump-pmu-power19:40:003
200687199300,29cyclictest0-21swapper/320:58:013
200687199300,1cyclictest0-21swapper/323:33:013
2006867993028,1cyclictest0-21swapper/220:40:012
200686799300,2cyclictest401rcuc/223:15:022
200686799300,29cyclictest2047829-21sh20:25:012
2006859993028,1cyclictest2165587-21apt-get00:03:010
200685999300,29cyclictest1-21systemd22:15:020
200685999300,29cyclictest0-21swapper/000:25:010
2006882992928,1cyclictest2152082-21apt-get23:38:007
2006882992927,2cyclictest0-21swapper/722:23:027
200688299290,28cyclictest0-21swapper/723:33:017
200688299290,28cyclictest0-21swapper/700:23:027
2006879992928,1cyclictest2138619-21apt-get23:12:596
2006879992927,1cyclictest2135932-21apt-get23:07:596
2006879992927,1cyclictest2113868-21apt-get22:28:016
2006879992927,1cyclictest2103096-21apt-get22:08:016
200687999290,2cyclictest2048453-21http20:28:016
200687999290,28cyclictest2092066-21apt-get21:48:006
200687999290,28cyclictest2092066-21apt-get21:47:596
200687999290,28cyclictest0-21swapper/621:35:016
200687999290,28cyclictest0-21swapper/621:30:016
200687999290,28cyclictest0-21swapper/619:18:016
2006876992928,1cyclictest0-21swapper/522:03:015
2006873992927,2cyclictest2088747-21munin-run21:40:014
2006873992927,1cyclictest278-21plymouthd21:15:014
2006873992927,1cyclictest0-21swapper/423:05:024
200687399290,28cyclictest0-21swapper/400:08:004
2006871992927,1cyclictest2081292-21apt-get21:28:013
2006871992927,1cyclictest2026282-21latency_hist19:45:013
200687199290,28cyclictest0-21swapper/323:58:003
200687199290,28cyclictest0-21swapper/319:28:003
2006867992928,1cyclictest0-21swapper/223:48:012
2006867992928,1cyclictest0-21swapper/221:50:012
2006867992928,1cyclictest0-21swapper/221:50:012
2006867992927,1cyclictest0-21swapper/219:48:032
200686799290,29cyclictest2113243-21cron22:25:012
200686799290,1cyclictest278-21plymouthd23:05:012
200686799290,1cyclictest0-21swapper/221:10:012
200686499290,29cyclictest0-21swapper/120:30:011
200686499290,28cyclictest2105782-21apt-get22:13:001
200686499290,28cyclictest0-21swapper/121:08:031
200686499290,28cyclictest0-21swapper/120:12:591
200686499290,1cyclictest2094755-21appstreamcli21:50:021
200686499290,1cyclictest2016140-21http19:28:011
200685999290,28cyclictest0-21swapper/020:15:000
200685999290,28cyclictest0-21swapper/019:25:000
200685999290,1cyclictest2067564-21apt-get21:03:000
2006882992828,0cyclictest0-21swapper/720:33:007
2006882992824,3cyclictest0-21swapper/700:18:027
2006882992822,6cyclictest0-21swapper/719:55:017
2006882992822,3cyclictest0-21swapper/723:20:027
2006879992827,1cyclictest2116818-21apt-get22:33:016
2006879992827,1cyclictest2102503-21awk22:05:016
2006879992827,1cyclictest0-21swapper/600:33:006
2006879992827,0cyclictest0-21swapper/621:53:016
2006879992827,0cyclictest0-21swapper/621:53:016
2006879992826,1cyclictest2007368-21apt-get19:13:016
200687699280,27cyclictest0-21swapper/522:48:015
200687699280,27cyclictest0-21swapper/521:28:005
200687699280,27cyclictest0-21swapper/519:57:595
200687699280,0cyclictest0-21swapper/523:43:015
200687699280,0cyclictest0-21swapper/520:18:025
2006873992827,1cyclictest2146706-21apt-get23:28:014
2006873992826,1cyclictest2062171-21http20:53:014
200687399280,28cyclictest1-21systemd19:45:014
200687399280,28cyclictest0-21swapper/420:47:594
200687199280,0cyclictest0-21swapper/322:18:013
2006867992827,1cyclictest0-21swapper/219:43:002
2006867992827,0cyclictest0-21swapper/221:33:052
200686799280,28cyclictest401rcuc/219:33:032
200686799280,28cyclictest0-21swapper/222:48:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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