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2026-04-09 - 21:51
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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 Apr 09, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4651342230173,18sleep50-21swapper/507:06:355
4650982229172,19sleep70-21swapper/707:06:067
4651442224172,42sleep60-21swapper/607:06:456
4671942222165,45sleep40-21swapper/407:08:194
4672642213184,19sleep00-21swapper/007:09:210
4651682211181,19sleep30-21swapper/307:07:073
4672572209180,18sleep20-21swapper/207:09:152
4673042206180,17sleep10-21swapper/107:09:541
46755499351,29cyclictest369-21systemd-journal07:35:004
46754699350,29cyclictest0-21swapper/207:50:012
46754699340,29cyclictest1-21systemd11:30:022
46755499330,28cyclictest0-21swapper/408:20:014
467554993227,4cyclictest530618-21cron09:05:014
467561993128,2cyclictest369-21systemd-journal09:50:017
467561993128,2cyclictest369-21systemd-journal09:50:017
46755499315,25cyclictest0-21swapper/410:58:064
46754999310,30cyclictest369-21systemd-journal12:40:013
46756199300,29cyclictest1-21systemd09:25:017
46755999300,29cyclictest617508-21debian-sa111:45:026
46755999300,29cyclictest0-21swapper/609:27:106
46755999300,28cyclictest0-21swapper/610:22:596
467556993027,2cyclictest590580-21munin-run10:55:025
467556993027,2cyclictest369-21systemd-journal08:00:005
46755699300,29cyclictest633918-21munin-run12:15:015
467554993028,1cyclictest563383-21sh10:05:004
467554993027,2cyclictest509034-21latency_hist08:25:014
467546993027,2cyclictest511759-21idleruntime-cro08:30:012
467561992927,1cyclictest0-21swapper/711:20:027
467561992926,2cyclictest495041-21cron08:00:017
46756199290,28cyclictest642880-21apt-get12:33:007
46756199290,28cyclictest0-21swapper/709:30:017
46756199290,0cyclictest0-21swapper/709:35:017
46755999290,28cyclictest0-21swapper/610:53:006
46755999290,28cyclictest0-21swapper/607:45:016
46755999290,28cyclictest0-21swapper/607:37:596
46755999290,28cyclictest0-21swapper/607:15:016
467556992927,1cyclictest501053-21apt-get08:13:005
467556992927,1cyclictest0-21swapper/508:50:015
46755699290,28cyclictest0-21swapper/509:27:075
46755699290,1cyclictest0-21swapper/509:35:015
46755499290,28cyclictest615443-21apt-get11:43:004
46755499290,28cyclictest585819-21apt-get10:47:584
46755499290,28cyclictest539339-21apt-get09:22:584
46755499290,28cyclictest0-21swapper/411:22:594
46755499290,28cyclictest0-21swapper/410:35:434
46755499290,28cyclictest0-21swapper/408:57:594
467549992927,1cyclictest642880-21apt-get12:33:003
46754999290,28cyclictest577729-21apt-get10:32:583
46754999290,28cyclictest0-21swapper/311:22:593
46754999290,28cyclictest0-21swapper/310:00:013
46754999290,28cyclictest0-21swapper/309:13:003
46754999290,1cyclictest582486-21sh10:40:023
46754999290,1cyclictest0-21swapper/309:28:003
467546992927,1cyclictest629156-21apt-get12:07:572
467546992927,1cyclictest0-21swapper/212:30:012
46754699290,28cyclictest0-21swapper/207:22:592
46754699290,1cyclictest478873-21apt07:30:012
46754499290,28cyclictest541985-21apt-get09:27:061
46754499290,28cyclictest0-21swapper/107:27:581
46754099290,28cyclictest615443-21apt-get11:42:590
46754099290,28cyclictest0-21swapper/009:13:000
46754099290,28cyclictest0-21swapper/008:47:580
46754099290,1cyclictest278-21plymouthd12:10:010
46754099290,1cyclictest0-21swapper/011:35:020
46754099290,1cyclictest0-21swapper/008:43:000
467561992827,1cyclictest640192-21apt-get12:27:597
467561992827,1cyclictest0-21swapper/711:35:027
467561992827,1cyclictest0-21swapper/711:08:017
467561992827,1cyclictest0-21swapper/709:07:587
467561992826,1cyclictest590600-21awk10:55:027
467561992826,1cyclictest0-21swapper/710:57:597
46756199280,27cyclictest0-21swapper/712:05:017
467559992827,1cyclictest0-21swapper/612:12:586
467559992827,1cyclictest0-21swapper/612:00:006
467559992827,1cyclictest0-21swapper/611:55:006
46755999280,1cyclictest0-21swapper/611:32:596
467556992827,1cyclictest0-21swapper/509:52:585
467556992827,1cyclictest0-21swapper/509:52:585
467556992827,1cyclictest0-21swapper/509:07:595
467556992826,1cyclictest0-21swapper/510:15:015
46755699280,27cyclictest0-21swapper/511:08:005
46755699280,27cyclictest0-21swapper/507:12:595
46755699280,0cyclictest0-21swapper/507:18:005
467554992826,2cyclictest0-21swapper/409:07:584
46755499280,0cyclictest0-21swapper/411:08:004
467549992828,0cyclictest640192-21apt-get12:27:583
467549992827,1cyclictest0-21swapper/309:25:013
467549992826,1cyclictest620813-21apt-get11:52:593
467549992826,1cyclictest0-21swapper/309:40:013
467549992826,1cyclictest0-21swapper/309:40:013
46754699280,0cyclictest0-21swapper/209:10:002
467544992826,1cyclictest503710-21cut08:15:001
46754499280,28cyclictest0-21swapper/112:40:001
46754499280,28cyclictest0-21swapper/111:45:021
467540992828,0cyclictest0-21swapper/010:57:590
467540992827,1cyclictest278-21plymouthd07:55:000
467540992827,1cyclictest0-21swapper/012:33:010
467540992827,1cyclictest0-21swapper/007:18:000
46754099280,28cyclictest0-21swapper/011:50:010
46754099280,28cyclictest0-21swapper/008:33:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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