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2026-06-04 - 11:21
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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 Jun 04, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8255312227167,19sleep20-21swapper/219:05:522
8256932216165,42sleep70-21swapper/719:08:157
8255192216180,24sleep00-21swapper/019:05:420
8257302214184,19sleep60-21swapper/619:08:456
8256242213184,19sleep30-21swapper/319:07:143
8257252211182,19sleep10-21swapper/119:08:411
8256342206177,19sleep40-21swapper/419:07:234
8255152199170,19sleep50-21swapper/519:05:395
82602299570,56cyclictest881279-21921:35:012
826025994848,0cyclictest0-21swapper/421:35:014
82603499330,32cyclictest0-21swapper/722:00:097
826023993330,3cyclictest850706-21cron20:15:013
82602399330,30cyclictest0-21swapper/319:15:023
82603499320,31cyclictest872903-21sqv21:20:017
82603099320,31cyclictest81-21ksoftirqd/622:20:096
826025993230,1cyclictest0-21swapper/422:40:014
82602399320,31cyclictest914619-21cron22:35:013
82603499310,31cyclictest833774-21919:30:027
82603499310,30cyclictest951342-21apt-get23:40:087
826028993128,2cyclictest878446-21cron21:30:015
82602899311,29cyclictest884073-21systemd-run21:40:015
82602899311,29cyclictest884073-21systemd-run21:40:015
826022993128,3cyclictest911823-21cron22:30:012
82601899310,3cyclictest968377-21awk00:10:011
82601699310,31cyclictest1-21systemd22:40:020
826034993027,3cyclictest0-21swapper/723:30:087
826034993027,3cyclictest0-21swapper/723:25:027
826030993028,1cyclictest0-21swapper/622:35:006
82602899300,28cyclictest848360-21apt-get20:10:055
826023993028,2cyclictest911824-21cron22:30:013
826023993028,1cyclictest0-21swapper/321:20:013
826023993027,2cyclictest858621-21cron20:40:013
82602399300,29cyclictest0-21swapper/323:45:083
82602299300,29cyclictest929027-21http23:00:092
82602299300,29cyclictest892787-21apt-get21:55:082
826018993028,1cyclictest0-21swapper/100:00:061
82601699300,29cyclictest1-21systemd22:50:020
82601699300,29cyclictest1-21systemd20:30:010
82601699300,29cyclictest0-21swapper/023:55:010
826034992927,2cyclictest0-21swapper/723:45:077
826034992926,3cyclictest0-21swapper/723:40:007
82603499290,28cyclictest0-21swapper/723:10:087
82603499290,28cyclictest0-21swapper/721:20:047
82603099290,28cyclictest0-21swapper/623:39:506
82603099290,28cyclictest0-21swapper/623:29:326
82603099290,28cyclictest0-21swapper/623:20:076
82603099290,28cyclictest0-21swapper/620:10:056
82603099290,1cyclictest844446-21920:00:016
826028992927,1cyclictest931801-21apt-get23:05:065
826028992927,1cyclictest856-21dbus-daemon19:30:025
826028992927,1cyclictest828689-21cron19:15:005
826028992927,1cyclictest0-21swapper/520:30:035
82602899290,2cyclictest855109-21munin-run20:30:015
82602899290,28cyclictest0-21swapper/521:20:055
826025992927,1cyclictest855480-21basename20:30:044
826025992927,1cyclictest0-21swapper/420:30:014
82602599290,28cyclictest929023-21apt-get23:00:094
82602599290,28cyclictest890014-21http21:50:094
82602599290,28cyclictest0-21swapper/422:55:074
82602599290,28cyclictest0-21swapper/422:50:094
82602599290,28cyclictest0-21swapper/421:20:054
826023992925,3cyclictest1-21systemd00:10:003
82602399290,29cyclictest107-21kcompactd023:42:263
82602399290,29cyclictest0-21swapper/320:25:013
82602399290,28cyclictest934577-21apt-get23:10:083
826022992928,1cyclictest0-21swapper/219:30:022
826022992923,5cyclictest279850-21systemd-journal20:15:002
82602299290,29cyclictest290-21plymouthd21:40:012
82602299290,29cyclictest290-21plymouthd21:40:012
82602299290,29cyclictest1-21systemd19:15:022
82602299290,28cyclictest0-21swapper/223:10:082
82602299290,28cyclictest0-21swapper/223:05:072
82602299290,28cyclictest0-21swapper/222:40:072
82602299290,28cyclictest0-21swapper/220:50:052
82602299290,28cyclictest0-21swapper/219:30:052
82602299290,28cyclictest0-21swapper/200:05:082
82602299290,1cyclictest920673-21apt-get22:45:082
826018992927,1cyclictest881660-21apt-get21:35:091
826018992927,1cyclictest881660-21apt-get21:35:091
826018992927,1cyclictest1-21systemd20:00:011
82601899290,28cyclictest929023-21apt-get23:00:091
82601899290,28cyclictest826349-21apt-get19:10:081
82601899290,28cyclictest1-21systemd21:10:011
82601899290,28cyclictest0-21swapper/120:30:031
82601899290,28cyclictest0-21swapper/119:30:051
826016992928,1cyclictest0-21swapper/023:55:070
826016992928,1cyclictest0-21swapper/021:15:010
82601699290,28cyclictest107-21kcompactd023:32:130
82601699290,28cyclictest0-21swapper/021:40:070
82601699290,28cyclictest0-21swapper/021:40:070
82601699290,28cyclictest0-21swapper/000:00:060
82601699290,1cyclictest0-21swapper/023:25:070
82601699290,1cyclictest0-21swapper/022:25:000
826034992827,1cyclictest850743-21awk20:15:017
826034992827,1cyclictest0-21swapper/700:35:017
82603499280,28cyclictest0-21swapper/722:20:017
82603499280,28cyclictest0-21swapper/700:20:097
82603499280,28cyclictest0-21swapper/700:15:097
82603499280,0cyclictest0-21swapper/700:10:097
826030992827,1cyclictest851921-21apt-get20:20:046
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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