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2026-04-07 - 03:12
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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 Tue Apr 07, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2317522234176,18sleep50-21swapper/519:05:055
2318282230175,19sleep70-21swapper/719:06:117
2318332229171,19sleep30-21swapper/319:06:163
2313492227170,19sleep20-21swapper/219:05:022
2317532226169,18sleep60-21swapper/619:05:056
2318212220167,17sleep00-21swapper/019:06:040
2339562214187,17sleep10-21swapper/119:08:551
2318812213185,18sleep40-21swapper/419:06:574
2600662590,0sleep40-21swapper/419:55:024
23428699364,29cyclictest16450irq/4-ttyS000:00:027
23428699353,29cyclictest16450irq/4-ttyS022:35:017
23428699310,30cyclictest339472-21cron22:20:007
23428499310,3cyclictest273291-21latency_hist20:20:026
23428499310,30cyclictest379879-21turbostat.cron23:35:006
23428499310,30cyclictest379879-21turbostat.cron23:35:006
234267993128,2cyclictest361026-21dump-pmu-power23:00:010
234284993028,1cyclictest279573-21apt-get20:32:596
23428099300,29cyclictest289979-21latency_hist20:50:025
234278993028,1cyclictest415944-21sh00:40:014
234278993027,2cyclictest273296-21dump-pmu-power20:20:014
234275993023,4cyclictest254005-21unin-run19:45:023
23427599300,29cyclictest724-21gdbus23:25:003
23427399300,29cyclictest0-21swapper/200:20:022
23427399300,28cyclictest356272-21apt-get22:53:002
234269993028,1cyclictest0-21swapper/120:15:021
234269993027,2cyclictest236829-21sh19:15:011
234286992927,1cyclictest290601-21apt-get20:53:007
234286992927,0cyclictest0-21swapper/723:10:007
23428699290,28cyclictest390971-21apt-config23:55:027
23428699290,28cyclictest0-21swapper/721:02:587
234284992927,1cyclictest681-21dbus-daemon19:15:006
234284992927,1cyclictest0-21swapper/621:28:016
23428499290,28cyclictest361667-21apt-get23:03:006
23428499290,28cyclictest0-21swapper/622:58:016
23428499290,28cyclictest0-21swapper/621:17:596
23428499290,28cyclictest0-21swapper/619:17:596
23428099290,28cyclictest0-21swapper/521:42:575
23428099290,28cyclictest0-21swapper/520:42:595
23428099290,28cyclictest0-21swapper/520:28:015
234278992927,1cyclictest401970-21idleruntime-cro00:15:014
234278992927,1cyclictest248910-21apt-get19:38:004
234278992927,1cyclictest0-21swapper/423:52:584
23427899290,28cyclictest0-21swapper/421:42:564
23427899290,28cyclictest0-21swapper/420:53:004
23427899290,28cyclictest0-21swapper/400:28:004
234275992927,1cyclictest242918-21munin-run19:25:003
23427599290,28cyclictest326647-21apt-get21:58:003
23427599290,1cyclictest256955-21dpkg19:50:013
23427599290,1cyclictest0-21swapper/323:13:013
234273992927,1cyclictest0-21swapper/222:05:012
234273992926,2cyclictest1-21systemd19:40:022
23427399290,28cyclictest0-21swapper/223:45:002
23427399290,28cyclictest0-21swapper/223:17:592
23427399290,28cyclictest0-21swapper/222:38:002
23427399290,28cyclictest0-21swapper/221:37:592
23427399290,28cyclictest0-21swapper/200:37:582
23427399290,1cyclictest278-21plymouthd21:20:002
23427399290,1cyclictest1-21systemd20:55:012
234269992927,1cyclictest385900-21apt-get23:47:591
234269992927,1cyclictest309987-21apt-get21:28:011
234269992927,1cyclictest0-21swapper/120:07:591
23426999290,29cyclictest700-21rs:main1
23426999290,28cyclictest1-21systemd21:20:011
23426999290,28cyclictest0-21swapper/123:27:581
23426999290,28cyclictest0-21swapper/123:07:591
23426999290,28cyclictest0-21swapper/122:22:581
23426999290,28cyclictest0-21swapper/121:48:001
23426999290,28cyclictest0-21swapper/119:52:591
23426999290,28cyclictest0-21swapper/119:43:001
23426999290,1cyclictest0-21swapper/122:45:011
234267992928,1cyclictest0-21swapper/022:50:010
23426799290,28cyclictest240844-21apt-get19:22:590
23426799290,1cyclictest0-21swapper/023:13:000
234286992828,0cyclictest0-21swapper/721:18:007
234286992828,0cyclictest0-21swapper/719:17:597
234286992827,1cyclictest278756-21apt-config20:30:027
234286992827,1cyclictest262584-21systemd-run20:00:027
234286992826,1cyclictest0-21swapper/700:27:597
234286992826,0cyclictest0-21swapper/723:38:007
234286992826,0cyclictest0-21swapper/723:38:007
23428699280,0cyclictest0-21swapper/721:37:597
234284992827,1cyclictest296001-21http21:02:586
234284992827,1cyclictest0-21swapper/622:03:016
234284992827,1cyclictest0-21swapper/620:22:596
234284992826,1cyclictest257055-21latency_hist19:50:026
23428499280,27cyclictest0-21swapper/621:55:016
23428499280,27cyclictest0-21swapper/620:53:016
23428499280,27cyclictest0-21swapper/620:12:596
23428499280,27cyclictest0-21swapper/620:00:026
234280992827,1cyclictest0-21swapper/523:50:025
23428099280,28cyclictest0-21swapper/523:35:015
23428099280,28cyclictest0-21swapper/523:35:005
23428099280,28cyclictest0-21swapper/520:30:035
234278992827,1cyclictest0-21swapper/423:43:004
234278992827,0cyclictest0-21swapper/400:00:004
234278992826,1cyclictest0-21swapper/421:23:014
23427899280,27cyclictest0-21swapper/421:15:004
23427899280,1cyclictest1-21systemd23:15:014
234275992828,0cyclictest390974-21systemd-run23:55:023
234275992828,0cyclictest0-21swapper/320:57:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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