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2026-03-24 - 20:15
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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 24, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39736522237174,21sleep50-21swapper/507:09:385
39736452233177,18sleep70-21swapper/707:09:327
39736132221188,21sleep40-21swapper/407:09:034
39715952219165,43sleep60-21swapper/607:07:546
39736502213183,19sleep30-21swapper/307:09:353
39715792212184,18sleep00-21swapper/007:07:400
39736312208181,17sleep20-21swapper/207:09:192
39715802208180,17sleep10-21swapper/107:07:411
3973915993813,24cyclictest0-21swapper/712:35:067
397390099340,30cyclictest0-21swapper/307:35:013
397390599320,31cyclictest4072444-21apt10:10:024
397390099320,31cyclictest4132183-21sh12:00:013
397391599310,30cyclictest3979840-21cron07:20:017
397391599310,30cyclictest369-21systemd-journal08:35:017
3973894993128,2cyclictest369-21systemd-journal11:25:001
3973891993127,3cyclictest369-21systemd-journal09:40:010
3973915993026,3cyclictest369-21systemd-journal08:50:017
397391599300,29cyclictest1-21systemd10:40:027
3973911993026,4cyclictest0-21swapper/609:30:006
3973911993026,4cyclictest0-21swapper/609:30:006
3973911993026,3cyclictest681-21dbus-daemon10:25:026
397391199300,30cyclictest0-21swapper/608:10:016
397391199300,29cyclictest4015650-21sh08:25:006
3973909993028,1cyclictest4121475-21systemd-run11:40:015
397390999300,29cyclictest4124126-21dump-pmu-power11:45:015
397390999300,29cyclictest278-21plymouthd07:35:005
397390599300,29cyclictest4031788-21sh08:55:004
397390599300,1cyclictest0-21swapper/411:25:014
3973900993029,1cyclictest0-21swapper/311:20:013
3973900993028,1cyclictest0-21swapper/308:15:013
397390099300,29cyclictest4129489-21sh11:55:013
397390099300,29cyclictest0-21swapper/310:23:013
397390099300,29cyclictest0-21swapper/310:18:013
397389599300,30cyclictest0-21swapper/211:25:012
397389599300,29cyclictest0-21swapper/210:10:022
397389499300,29cyclictest0-21swapper/111:50:001
397389199301,29cyclictest0-21swapper/008:00:010
3973915992927,1cyclictest0-21swapper/711:53:007
397391599290,28cyclictest4010891-21apt-get08:18:027
397391599290,28cyclictest0-21swapper/709:38:017
397391599290,1cyclictest4059619-21apt-get09:48:027
397391599290,1cyclictest4032425-21apt-get08:58:037
397391599290,1cyclictest0-21swapper/708:40:007
3973911992927,1cyclictest3977782-21apt-get07:18:016
3973911992926,2cyclictest1-21systemd09:25:016
3973911992926,2cyclictest1-21systemd09:25:016
397391199290,28cyclictest0-21swapper/609:48:016
397391199290,28cyclictest0-21swapper/609:35:016
397391199290,28cyclictest0-21swapper/609:13:016
3973909992927,1cyclictest4042871-21systemd-run09:15:005
3973909992925,3cyclictest3999233-21dump-pmu-power07:55:015
397390999290,29cyclictest278-21plymouthd09:00:015
397390999290,28cyclictest0-21swapper/512:23:015
3973905992927,1cyclictest0-21swapper/411:43:044
3973905992927,1cyclictest0-21swapper/411:30:014
3973900992922,7cyclictest0-21swapper/309:55:023
397390099290,1cyclictest1-21systemd11:35:013
3973894992927,1cyclictest4034484-21latency_hist09:00:011
397389499290,28cyclictest0-21swapper/110:13:021
397389499290,28cyclictest0-21swapper/110:08:011
397389499290,1cyclictest0-21swapper/108:20:001
3973891992927,1cyclictest3991151-21idleruntime-cro07:40:010
3973891992926,3cyclictest4021063-21awk08:35:010
397389199290,28cyclictest0-21swapper/011:03:020
397389199290,28cyclictest0-21swapper/010:38:010
397389199290,1cyclictest0-21swapper/009:08:020
397389199290,1cyclictest0-21swapper/009:08:020
3973915992827,1cyclictest0-21swapper/711:33:037
3973915992826,1cyclictest4048851-21apt-get09:28:027
3973915992826,1cyclictest4048851-21apt-get09:28:017
3973915992826,1cyclictest4013599-21apt-get08:23:057
397391599280,27cyclictest0-21swapper/710:08:017
397391599280,1cyclictest0-21swapper/710:18:027
3973911992827,1cyclictest0-21swapper/612:25:016
3973911992827,1cyclictest0-21swapper/607:28:006
397391199280,28cyclictest0-21swapper/610:45:026
397391199280,0cyclictest0-21swapper/607:48:016
3973909992827,1cyclictest4129540-21systemd-run11:55:015
3973909992827,1cyclictest0-21swapper/510:40:015
3973909992826,2cyclictest4031805-21munin-run08:55:005
3973909992826,1cyclictest4097560-21apt-get10:58:035
397390999280,28cyclictest0-21swapper/507:28:015
397390999280,1cyclictest0-21swapper/508:30:015
3973905992827,1cyclictest0-21swapper/411:13:024
3973905992827,1cyclictest0-21swapper/409:23:024
3973905992827,1cyclictest0-21swapper/409:23:024
3973905992827,0cyclictest0-21swapper/407:58:024
3973905992826,1cyclictest698-21in:imuxsock08:45:014
3973905992826,1cyclictest0-21swapper/407:43:014
397390599280,28cyclictest0-21swapper/407:25:014
397390099280,27cyclictest0-21swapper/312:38:023
3973895992826,1cyclictest0-21swapper/211:43:032
397389599280,28cyclictest0-21swapper/209:20:012
397389599280,28cyclictest0-21swapper/208:33:022
3973894992827,1cyclictest0-21swapper/108:40:001
397389499280,0cyclictest0-21swapper/112:08:011
397389499280,0cyclictest0-21swapper/111:28:011
397389499280,0cyclictest0-21swapper/110:43:021
397389499280,0cyclictest0-21swapper/107:38:021
397389499280,0cyclictest0-21swapper/107:28:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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