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2026-03-17 - 02:52
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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 Mar 17, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32821032243186,44sleep70-21swapper/719:08:437
32799502234178,18sleep50-21swapper/519:05:365
32821722219187,21sleep10-21swapper/119:09:411
32801152218186,21sleep30-21swapper/319:07:593
32821822216188,18sleep20-21swapper/219:09:502
32799582216186,20sleep40-21swapper/419:05:434
32821682214187,17sleep60-21swapper/619:09:396
32801022208180,18sleep00-21swapper/019:07:480
3282447993837,1cyclictest0-21swapper/420:20:004
3282447993837,1cyclictest0-21swapper/420:20:004
3282456993535,0cyclictest0-21swapper/720:20:017
3282456993535,0cyclictest0-21swapper/720:20:017
3282456993428,5cyclictest3432142-21cron23:45:017
328245499320,31cyclictest3461775-21sh00:40:006
3282456993127,3cyclictest16450irq/4-ttyS023:50:017
3282447993129,2cyclictest0-21swapper/423:50:004
328244099311,29cyclictest0-21swapper/220:00:002
3282456993028,1cyclictest0-21swapper/723:03:047
328244999300,2cyclictest3329685-21apt-get20:38:015
328244999300,29cyclictest3451008-21sh00:20:005
328244999300,28cyclictest3321313-21apt-get20:23:055
328244999300,28cyclictest3321313-21apt-get20:23:055
3282447993026,3cyclictest0-21swapper/400:28:024
328244499300,29cyclictest0-21swapper/321:05:013
328244099300,1cyclictest0-21swapper/219:13:032
328243899300,29cyclictest0-21swapper/119:48:031
3282435993027,2cyclictest3293754-21apt19:30:010
3282456992925,3cyclictest0-21swapper/700:28:027
328245699290,28cyclictest0-21swapper/723:25:017
328245699290,28cyclictest0-21swapper/721:20:017
328245699290,28cyclictest0-21swapper/720:25:017
328245699290,28cyclictest0-21swapper/720:25:007
328245699290,0cyclictest0-21swapper/719:38:037
3282449992927,1cyclictest0-21swapper/521:30:015
328244999290,28cyclictest3351225-21apt-get21:18:015
328244999290,28cyclictest3302464-21apt-get19:48:025
328244999290,28cyclictest0-21swapper/523:33:025
328244999290,28cyclictest0-21swapper/500:33:035
328244999290,1cyclictest0-21swapper/522:45:015
3282447992927,1cyclictest0-21swapper/419:53:024
328244799290,28cyclictest0-21swapper/423:03:034
328244799290,28cyclictest0-21swapper/422:38:024
328244499290,29cyclictest3456409-21munin-plugin-st00:30:013
328244499290,1cyclictest3353931-21apt-get21:23:023
3282440992927,1cyclictest0-21swapper/222:15:022
328244099290,29cyclictest0-21swapper/222:55:012
328244099290,29cyclictest0-21swapper/221:50:022
328244099290,28cyclictest0-21swapper/223:58:032
328244099290,28cyclictest0-21swapper/221:18:012
328244099290,1cyclictest3415730-21idleruntime-cro23:15:012
3282438992927,1cyclictest3323432-21munin-run20:25:011
3282438992927,1cyclictest3323432-21munin-run20:25:001
328243899290,28cyclictest3315913-21apt-get20:13:011
328243899290,28cyclictest0-21swapper/123:33:011
328243899290,28cyclictest0-21swapper/121:15:011
328243899290,1cyclictest3421753-21apt-get23:28:031
328243899290,1cyclictest3402903-21apt-get22:53:021
3282435992927,1cyclictest0-21swapper/020:25:020
3282435992927,1cyclictest0-21swapper/020:25:010
3282435992925,3cyclictest3328796-21latency_hist20:35:020
328243599290,28cyclictest3370339-21apt-get21:53:030
328243599290,28cyclictest0-21swapper/020:03:040
328243599290,1cyclictest0-21swapper/023:35:000
3282456992823,4cyclictest3315317-21awk20:10:007
328245699280,0cyclictest0-21swapper/723:58:047
3282454992827,1cyclictest0-21swapper/621:50:016
3282454992826,1cyclictest3429462-21munin-run23:40:006
328245499280,28cyclictest0-21swapper/600:20:016
3282449992827,1cyclictest0-21swapper/523:28:035
3282449992827,1cyclictest0-21swapper/520:48:035
3282449992827,1cyclictest0-21swapper/520:18:035
3282449992827,1cyclictest0-21swapper/520:18:025
328244999280,0cyclictest0-21swapper/522:23:035
328244999280,0cyclictest0-21swapper/520:00:015
328244999280,0cyclictest0-21swapper/500:08:025
3282447992827,1cyclictest0-21swapper/419:33:024
3282447992827,0cyclictest0-21swapper/423:53:054
328244799280,28cyclictest0-21swapper/423:35:024
3282444992827,1cyclictest3394240-21systemctl22:35:013
3282444992827,1cyclictest278-21plymouthd23:30:003
328244499280,28cyclictest0-21swapper/320:05:003
328244499280,28cyclictest0-21swapper/319:58:033
328244499280,28cyclictest0-21swapper/300:18:033
328244499280,27cyclictest0-21swapper/320:18:033
328244499280,27cyclictest0-21swapper/320:18:023
3282440992827,1cyclictest0-21swapper/222:43:022
3282440992827,1cyclictest0-21swapper/219:18:032
328244099280,0cyclictest0-21swapper/220:43:022
3282438992827,1cyclictest3294378-21apt-get19:33:021
3282438992827,1cyclictest3284985-21sh19:15:001
3282438992827,1cyclictest1-21systemd20:00:011
3282438992827,1cyclictest0-21swapper/122:48:041
3282438992826,1cyclictest0-21swapper/123:59:591
328243899280,28cyclictest0-21swapper/121:45:011
3282435992827,1cyclictest0-21swapper/019:25:010
3282435992827,1cyclictest0-21swapper/019:15:000
3282435992826,1cyclictest3392137-21apt-get22:33:020
3282456992727,0cyclictest0-21swapper/723:35:027
3282456992727,0cyclictest0-21swapper/722:23:047
3282456992727,0cyclictest0-21swapper/720:28:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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