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2026-03-15 - 08:10
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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 15, 2026 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5538992234180,43sleep70-21swapper/719:08:227
5539232222165,17sleep40-21swapper/419:08:444
5518862220186,22sleep60-21swapper/619:07:176
5519182216164,17sleep20-21swapper/219:07:442
5539022214159,17sleep10-21swapper/119:08:241
5539012212183,18sleep00-21swapper/019:08:230
5539312210180,19sleep30-21swapper/319:08:503
5539512206181,16sleep50-21swapper/519:09:095
554239993427,4cyclictest654969-21unin-run22:15:023
55424399330,28cyclictest0-21swapper/421:18:024
55424399330,28cyclictest0-21swapper/419:33:034
554243993227,4cyclictest687223-21sh23:15:014
55425399312,29cyclictest16450irq/4-ttyS021:55:017
55425099310,29cyclictest671092-21idleruntime-cro22:45:026
55424399310,28cyclictest0-21swapper/421:48:024
554234993127,3cyclictest616986-21turbostat.cron21:05:002
55422899310,30cyclictest556938-21install19:15:010
55425399300,2cyclictest570959-21munin-run19:40:017
55425399300,29cyclictest703387-21idleruntime-cro23:45:017
55425099300,2cyclictest635819-21turbostat.cron21:40:016
55424899300,29cyclictest0-21swapper/523:00:015
554239993028,1cyclictest0-21swapper/322:50:013
554239993028,1cyclictest0-21swapper/319:20:013
55423999300,30cyclictest587367-21sh20:10:013
55423999300,29cyclictest695295-21cron23:30:003
55423499300,29cyclictest573656-21apt19:45:002
554228993028,1cyclictest0-21swapper/022:38:020
55422899300,29cyclictest643898-21turbostat.cron21:55:020
55422899300,29cyclictest0-21swapper/023:59:590
554253992928,1cyclictest0-21swapper/720:40:007
55425399290,28cyclictest633758-21apt-get21:38:027
55425399290,28cyclictest0-21swapper/721:03:037
55425399290,1cyclictest278-21plymouthd22:25:027
55425399290,1cyclictest0-21swapper/720:08:017
554250992927,1cyclictest682483-21apt-get23:08:026
554250992927,1cyclictest278-21plymouthd23:40:006
55425099290,28cyclictest639152-21apt-get21:48:026
55425099290,28cyclictest0-21swapper/621:03:036
55425099290,28cyclictest0-21swapper/620:45:016
55425099290,28cyclictest0-21swapper/620:23:046
55425099290,1cyclictest0-21swapper/622:55:016
554248992927,1cyclictest684539-21idleruntime-cro23:10:015
554248992927,1cyclictest681-21dbus-daemon23:20:005
55424899290,28cyclictest0-21swapper/523:23:075
55424899290,28cyclictest0-21swapper/520:25:015
55424899290,1cyclictest558120-21apt-get19:18:045
554243992923,5cyclictest608913-21dump-pmu-power20:50:014
554243992923,5cyclictest608913-21dump-pmu-power20:50:004
55424399290,28cyclictest1-21systemd23:20:004
55424399290,28cyclictest0-21swapper/419:38:044
55424399290,28cyclictest0-21swapper/400:30:014
55424399290,0cyclictest0-21swapper/420:58:024
554239992928,1cyclictest0-21swapper/323:53:033
554239992928,1cyclictest0-21swapper/323:25:003
55423999290,28cyclictest0-21swapper/323:13:043
55423999290,28cyclictest0-21swapper/321:08:033
55423999290,28cyclictest0-21swapper/320:33:043
55423999290,28cyclictest0-21swapper/320:03:013
55423999290,28cyclictest0-21swapper/300:28:043
554234992928,1cyclictest0-21swapper/219:48:032
554234992927,1cyclictest582623-21apt-get20:03:022
55423499290,1cyclictest681-21dbus-daemon19:55:012
55423499290,1cyclictest0-21swapper/200:00:012
554230992927,1cyclictest0-21swapper/122:43:031
55423099290,28cyclictest0-21swapper/122:50:011
55423099290,28cyclictest0-21swapper/121:48:021
55423099290,28cyclictest0-21swapper/121:30:021
554228992927,1cyclictest719825-21latency_hist00:15:010
55422899290,28cyclictest596078-21apt-get20:28:020
55422899290,28cyclictest0-21swapper/023:43:040
55422899290,28cyclictest0-21swapper/022:18:020
554253992827,1cyclictest563513-21apt-get19:28:027
554253992827,1cyclictest0-21swapper/719:23:037
55425399280,28cyclictest0-21swapper/700:03:027
55425399280,27cyclictest0-21swapper/721:45:027
554250992825,2cyclictest611635-21unin-run20:55:026
554250992825,2cyclictest611635-21unin-run20:55:016
55425099280,27cyclictest0-21swapper/623:25:016
55425099280,0cyclictest0-21swapper/622:23:046
554248992826,1cyclictest0-21swapper/522:03:035
554243992827,1cyclictest708806-21systemd-run23:55:014
554243992827,1cyclictest0-21swapper/421:25:014
554243992827,1cyclictest0-21swapper/419:50:014
554243992826,1cyclictest665697-21idleruntime-cro22:35:014
55424399280,28cyclictest0-21swapper/420:30:014
554239992826,1cyclictest278-21plymouthd21:30:013
554239992824,3cyclictest565572-21latency_hist19:30:013
554234992828,0cyclictest0-21swapper/220:28:012
554234992827,1cyclictest612219-21apt-get20:58:032
55423499280,28cyclictest0-21swapper/222:28:022
55423499280,0cyclictest0-21swapper/222:08:032
55423499280,0cyclictest0-21swapper/220:53:032
55423499280,0cyclictest0-21swapper/220:53:032
55423499280,0cyclictest0-21swapper/219:33:042
554230992827,1cyclictest0-21swapper/100:33:031
554230992826,1cyclictest0-21swapper/119:30:011
55423099280,0cyclictest0-21swapper/123:53:031
55423099280,0cyclictest0-21swapper/122:15:011
554228992827,1cyclictest0-21swapper/023:38:030
554228992821,1cyclictest0-21swapper/020:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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