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2026-04-06 - 20:06
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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 Mon Apr 06, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27052172237179,18sleep60-21swapper/607:09:236
27030702221167,17sleep50-21swapper/507:06:245
27052292218188,20sleep70-21swapper/707:09:337
27030392218188,19sleep10-21swapper/107:05:571
27052452217183,21sleep40-21swapper/407:09:464
27029932214181,21sleep20-21swapper/207:05:182
27030592209179,19sleep30-21swapper/307:06:153
27030472203173,19sleep00-21swapper/007:06:040
27397662850,0sleep10-21swapper/108:13:001
270550499524,24cyclictest0-21swapper/410:03:134
2705514994038,1cyclictest278-21plymouthd09:15:017
2705499993737,0cyclictest0-21swapper/209:15:012
270550499350,29cyclictest700-21rs:main4
2705504993327,5cyclictest0-21swapper/408:15:014
270550399333,30cyclictest0-21swapper/310:40:013
270549699332,30cyclictest311rcuc/111:35:021
270550499320,28cyclictest0-21swapper/410:20:014
2705503993228,4cyclictest2711510-21unin-run07:20:013
270549999320,30cyclictest2796032-21idleruntime-cro09:55:012
2705496993231,1cyclictest0-21swapper/108:55:001
2705493993229,2cyclictest700-21rs:main0
2705514993127,3cyclictest2714401-21sh07:25:027
2705511993126,4cyclictest2804132-21latency_hist10:10:016
270551199310,27cyclictest0-21swapper/609:23:006
270550499310,0cyclictest0-21swapper/410:13:004
2705514993027,2cyclictest698-21in:imuxsock11:35:027
270551499300,29cyclictest2796028-21sh09:55:017
270551499300,29cyclictest0-21swapper/707:48:007
270551199300,29cyclictest2873130-21apt-get12:17:596
270551199300,29cyclictest2812349-21apt-key10:25:026
270551199300,29cyclictest2812349-21apt-key10:25:026
2705509993028,1cyclictest2715024-21apt-get07:27:595
2705509993028,1cyclictest0-21swapper/508:02:585
270550999300,2cyclictest369-21systemd-journal12:00:025
270550999300,2cyclictest2766089-21sh09:00:015
270550999300,29cyclictest2848371-21apt-get11:33:005
2705503993028,1cyclictest0-21swapper/311:12:593
270550399300,0cyclictest2712336-21apt-get07:22:593
2705499993027,2cyclictest2834294-21munin-run11:05:012
270549999300,29cyclictest0-21swapper/211:28:002
270549399300,29cyclictest2771541-21sh09:10:010
270549399300,29cyclictest2719773-21latency_hist07:35:020
2705514992928,1cyclictest878-21runrttasks12:28:007
2705514992928,1cyclictest0-21swapper/710:33:007
2705514992928,1cyclictest0-21swapper/710:32:597
2705514992927,1cyclictest2812262-21gpgv10:25:017
2705514992927,1cyclictest2812262-21gpgv10:25:017
2705514992927,1cyclictest2705994-21apt-get07:13:017
270551499290,28cyclictest2845681-21apt-get11:28:007
270551499290,28cyclictest0-21swapper/710:53:027
2705511992927,2cyclictest0-21swapper/607:27:596
2705511992927,1cyclictest2734418-21apt-get08:02:586
2705511992926,3cyclictest0-21swapper/611:45:026
2705511992926,3cyclictest0-21swapper/609:13:016
2705511992925,3cyclictest0-21swapper/612:08:006
270551199290,28cyclictest0-21swapper/610:30:016
270550999290,28cyclictest2785624-21apt-get09:38:005
270550999290,1cyclictest2798711-21cron10:00:005
2705504992928,1cyclictest278-21plymouthd12:35:014
2705504992927,1cyclictest2722482-21apt-get07:40:024
2705504992926,2cyclictest0-21swapper/410:48:014
2705504992922,6cyclictest2804134-21turbostat.cron10:10:014
270550499290,1cyclictest0-21swapper/408:45:004
2705503992927,1cyclictest0-21swapper/312:30:013
270550399290,28cyclictest2793967-21apt-get09:53:003
270550399290,28cyclictest0-21swapper/311:57:583
270550399290,28cyclictest0-21swapper/307:28:003
270550399290,1cyclictest0-21swapper/309:07:593
270550399290,1cyclictest0-21swapper/308:47:593
2705499992927,1cyclictest0-21swapper/210:25:012
2705499992927,1cyclictest0-21swapper/210:25:012
2705499992927,1cyclictest0-21swapper/207:15:022
270549999290,28cyclictest0-21swapper/210:08:002
270549999290,28cyclictest0-21swapper/207:43:002
2705496992928,1cyclictest33-21ksoftirqd/112:35:001
2705496992928,1cyclictest0-21swapper/107:43:001
270549699290,28cyclictest0-21swapper/111:22:581
270549399290,28cyclictest0-21swapper/011:22:590
270549399290,28cyclictest0-21swapper/011:08:000
270549399290,28cyclictest0-21swapper/009:57:590
270549399290,28cyclictest0-21swapper/009:35:010
270549399290,28cyclictest0-21swapper/009:13:010
270549399290,1cyclictest278-21plymouthd09:55:000
270549399290,1cyclictest0-21swapper/012:15:010
2705514992826,1cyclictest0-21swapper/710:15:007
2705511992827,1cyclictest681-21dbus-daemon09:20:016
2705511992827,1cyclictest0-21swapper/611:25:026
2705511992827,1cyclictest0-21swapper/611:00:006
2705511992824,3cyclictest0-21swapper/610:17:596
270551199280,27cyclictest0-21swapper/610:03:006
270551199280,0cyclictest0-21swapper/609:03:006
2705509992827,1cyclictest1-21systemd08:10:005
2705509992827,1cyclictest0-21swapper/512:15:025
2705509992827,1cyclictest0-21swapper/511:08:005
2705509992827,1cyclictest0-21swapper/510:58:015
2705509992826,1cyclictest2820557-21munin-run10:40:005
270550999280,28cyclictest1-21systemd08:45:015
270550999280,27cyclictest0-21swapper/511:02:595
2705504992827,1cyclictest0-21swapper/408:33:004
2705504992825,3cyclictest0-21swapper/407:28:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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