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2026-06-18 - 14:33
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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 18, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2020522252188,19sleep10-21swapper/107:05:251
2023192235175,19sleep70-21swapper/707:09:177
2023522229165,19sleep40-21swapper/407:09:464
2021022227167,19sleep30-21swapper/307:06:073
2023362225165,19sleep60-21swapper/607:09:326
2021692213185,18sleep50-21swapper/507:07:065
2022182208178,20sleep00-21swapper/007:07:490
2022202205176,20sleep20-21swapper/207:07:512
20258999340,33cyclictest0-21swapper/511:15:035
20258399330,2cyclictest342514-21munin-run11:20:013
20259499323,1cyclictest0-21swapper/708:32:177
202591993227,4cyclictest323019-21cron10:45:016
20258999310,30cyclictest368006-21apt-get12:05:065
202583993127,4cyclictest1-21systemd08:05:023
202583993127,3cyclictest303543-21true10:10:013
202578993127,3cyclictest289577-21cron09:45:011
20259499300,29cyclictest362424-21apt-get11:55:037
202591993028,1cyclictest279850-21systemd-journal08:00:016
20259199300,29cyclictest1-21systemd12:40:016
20259199300,29cyclictest1-21systemd09:10:016
20258999300,29cyclictest365220-21apt-get12:00:045
202583993027,3cyclictest0-21swapper/311:25:043
20258399300,29cyclictest1-21systemd12:30:013
20258399300,1cyclictest373123-21cron12:15:023
20258399300,0cyclictest0-21swapper/311:15:013
202580993028,1cyclictest0-21swapper/209:50:052
202594992927,1cyclictest234299-21apt-get08:05:047
202594992927,1cyclictest0-21swapper/712:20:037
202594992927,1cyclictest0-21swapper/709:40:047
20259499290,29cyclictest245432-21apt-get08:25:057
20259499290,28cyclictest379173-21apt-get12:25:057
20259499290,28cyclictest0-21swapper/712:00:047
20259499290,28cyclictest0-21swapper/710:55:057
20259499290,28cyclictest0-21swapper/709:35:047
20259499290,28cyclictest0-21swapper/709:25:047
20259499290,28cyclictest0-21swapper/707:20:047
20259499290,1cyclictest0-21swapper/708:50:017
202591992928,1cyclictest376389-21apt-get12:20:036
202591992925,3cyclictest1-21systemd07:20:016
20259199290,28cyclictest359639-21apt-get11:50:066
20259199290,28cyclictest225912-21apt-get07:50:066
20259199290,28cyclictest0-21swapper/612:05:066
20259199290,28cyclictest0-21swapper/610:15:036
20259199290,28cyclictest0-21swapper/609:40:056
20259199290,28cyclictest0-21swapper/609:30:056
20259199290,28cyclictest0-21swapper/608:40:046
20259199290,28cyclictest0-21swapper/608:00:046
20259199290,1cyclictest0-21swapper/607:20:036
20258999290,29cyclictest211550-21cron07:25:015
20258999290,28cyclictest370775-21apt-get12:10:055
20258999290,28cyclictest214760-21apt-get07:30:045
20258999290,28cyclictest0-21swapper/512:20:035
20258999290,28cyclictest0-21swapper/510:20:025
20258999290,28cyclictest0-21swapper/509:15:055
20258999290,1cyclictest0-21swapper/508:55:055
202585992928,1cyclictest0-21swapper/412:15:024
202585992927,1cyclictest0-21swapper/408:30:044
202585992927,1cyclictest0-21swapper/407:55:054
20258599290,28cyclictest0-21swapper/410:55:014
20258599290,28cyclictest0-21swapper/409:35:054
20258599290,28cyclictest0-21swapper/408:50:044
202583992928,1cyclictest0-21swapper/310:05:013
202583992926,2cyclictest856-21dbus-daemon07:50:013
20258399290,28cyclictest248209-21apt-get08:30:043
202580992927,1cyclictest0-21swapper/210:40:052
20258099290,29cyclictest0-21swapper/212:30:042
20258099290,28cyclictest0-21swapper/211:55:012
20258099290,28cyclictest0-21swapper/210:25:062
20258099290,28cyclictest0-21swapper/209:45:032
20258099290,28cyclictest0-21swapper/208:05:052
20258099290,1cyclictest0-21swapper/212:15:022
20257899290,28cyclictest0-21swapper/110:45:051
20257899290,28cyclictest0-21swapper/108:10:041
20257899290,28cyclictest0-21swapper/107:35:051
20257899290,1cyclictest0-21swapper/110:30:041
20257899290,1cyclictest0-21swapper/110:30:041
202574992928,1cyclictest0-21swapper/008:20:040
20257499290,29cyclictest345282-21cron11:25:010
20257499290,29cyclictest0-21swapper/011:35:010
20257499290,28cyclictest290-21plymouthd09:55:050
20257499290,28cyclictest237074-21apt-get08:10:040
20257499290,28cyclictest0-21swapper/012:10:060
20257499290,28cyclictest0-21swapper/012:05:050
202594992827,1cyclictest17850irq/4-ttyS012:15:027
202594992827,1cyclictest0-21swapper/710:45:047
202594992827,1cyclictest0-21swapper/709:25:017
202594992827,1cyclictest0-21swapper/708:00:027
20259499280,28cyclictest0-21swapper/710:45:017
20259499280,1cyclictest0-21swapper/709:30:047
202591992827,1cyclictest0-21swapper/609:00:036
202591992826,1cyclictest356861-21apt-get11:45:046
202591992826,1cyclictest0-21swapper/608:55:016
202589992827,1cyclictest320684-21apt-get10:40:055
202589992827,1cyclictest0-21swapper/511:25:055
202589992827,1cyclictest0-21swapper/508:35:035
202589992826,1cyclictest326239-21apt-get10:50:045
20258999280,28cyclictest301150-21apt-get10:05:055
20258999280,28cyclictest0-21swapper/511:25:015
20258999280,28cyclictest0-21swapper/508:25:025
20258999280,1cyclictest107-21kcompactd010:15:275
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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