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2026-04-14 - 23:36
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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 Apr 14, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8753362238172,21sleep20-21swapper/207:06:492
8753182225171,18sleep50-21swapper/507:06:365
8774612221166,19sleep30-21swapper/307:09:313
8752742220166,18sleep60-21swapper/607:05:566
8774582213187,16sleep00-21swapper/007:09:280
8774002213183,19sleep70-21swapper/707:08:397
8753912208180,18sleep10-21swapper/107:07:361
8752722207177,19sleep40-21swapper/407:05:554
87772599352,2cyclictest0-21swapper/012:40:020
87774399320,28cyclictest993056-21apt-get10:42:596
87774399320,28cyclictest993056-21apt-get10:42:586
87773699320,31cyclictest987024-21cron10:30:014
87773699320,30cyclictest935096-21idleruntime-cro08:55:004
877725993230,2cyclictest0-21swapper/007:52:580
87774399311,29cyclictest0-21swapper/611:00:016
87774099310,30cyclictest0-21swapper/511:48:025
87774099310,1cyclictest0-21swapper/508:27:595
877734993128,1cyclictest0-21swapper/312:35:013
87773499310,30cyclictest0-21swapper/312:38:003
87773499310,2cyclictest369-21systemd-journal10:10:003
87773199310,29cyclictest987662-21apt-get10:32:592
877743993026,3cyclictest0-21swapper/608:27:596
87774099300,2cyclictest905215-21sh08:00:025
877736993026,3cyclictest1049227-21latency_hist12:25:024
87773699300,29cyclictest894454-21dump-pmu-power07:40:014
877731993028,1cyclictest0-21swapper/207:30:022
87772999300,29cyclictest1057812-21latency_hist12:40:021
877725993026,3cyclictest907925-21latency_hist08:05:020
877745992927,1cyclictest1000501-21munin-run10:55:007
87774599290,1cyclictest938038-21apt09:00:017
877743992927,1cyclictest1052802-21apt-get12:32:596
877743992925,3cyclictest978940-21sh10:15:016
87774399290,28cyclictest0-21swapper/609:57:576
87774099290,29cyclictest924100-21awk08:35:015
87774099290,28cyclictest1047165-21apt-get12:22:585
87774099290,28cyclictest0-21swapper/510:48:005
87774099290,28cyclictest0-21swapper/510:48:005
87774099290,28cyclictest0-21swapper/509:03:005
877736992927,1cyclictest681-21dbus-daemon07:35:024
877736992927,1cyclictest0-21swapper/412:13:004
877736992927,1cyclictest0-21swapper/411:40:014
87773699290,28cyclictest930087-21apt-get08:47:584
87773699290,28cyclictest0-21swapper/412:17:574
87773699290,1cyclictest1011883-21apt-get11:17:594
87773699290,1cyclictest0-21swapper/410:35:014
877734992928,1cyclictest952403-21apt-get09:27:593
87773499290,28cyclictest924695-21apt-get08:38:003
87773499290,1cyclictest968805-21apt-get09:57:593
877731992927,1cyclictest1-21systemd12:35:022
877731992926,3cyclictest935170-21touch08:55:012
87773199290,28cyclictest0-21swapper/211:02:592
87773199290,1cyclictest0-21swapper/211:37:582
87772999290,28cyclictest921424-21systemd-run08:30:011
87772999290,28cyclictest0-21swapper/112:30:021
87772999290,28cyclictest0-21swapper/110:48:001
87772999290,28cyclictest0-21swapper/110:48:001
87772999290,28cyclictest0-21swapper/110:12:571
87772999290,28cyclictest0-21swapper/110:08:001
87772999290,1cyclictest878229-21apt-get07:12:591
877725992927,1cyclictest278-21plymouthd07:30:010
87772599290,28cyclictest0-21swapper/010:02:590
87772599290,28cyclictest0-21swapper/009:57:580
877745992826,1cyclictest278-21plymouthd10:15:007
877745992826,1cyclictest0-21swapper/712:02:587
87774599280,27cyclictest0-21swapper/711:57:587
877743992827,1cyclictest0-21swapper/610:32:596
877743992826,1cyclictest1-21systemd10:40:016
877743992825,3cyclictest0-21swapper/611:48:026
877740992826,1cyclictest278-21plymouthd07:30:025
877740992825,2cyclictest926754-21sh08:40:015
87774099280,0cyclictest0-21swapper/512:32:595
87774099280,0cyclictest0-21swapper/509:43:015
877736992827,0cyclictest0-21swapper/409:22:584
877736992827,0cyclictest0-21swapper/409:00:024
87773699280,27cyclictest0-21swapper/410:02:584
877734992827,1cyclictest0-21swapper/308:55:013
877734992827,1cyclictest0-21swapper/308:32:573
877734992826,1cyclictest935978-21apt-get08:57:593
877734992826,1cyclictest8782322sleep307:12:593
87773499280,28cyclictest278-21plymouthd09:50:013
87773499280,28cyclictest0-21swapper/307:25:023
87773199280,28cyclictest0-21swapper/210:40:012
87773199280,0cyclictest0-21swapper/210:10:012
877729992828,0cyclictest0-21swapper/108:07:591
877729992827,1cyclictest0-21swapper/109:45:011
877725992827,1cyclictest0-21swapper/010:50:010
877725992827,1cyclictest0-21swapper/010:50:010
87772599280,28cyclictest0-21swapper/011:25:020
87772599280,1cyclictest0-21swapper/008:28:000
87772599280,0cyclictest0-21swapper/012:28:000
87772599280,0cyclictest0-21swapper/009:23:000
877745992727,0cyclictest0-21swapper/711:17:597
877745992726,1cyclictest0-21swapper/711:28:007
877745992726,1cyclictest0-21swapper/709:15:017
877745992725,1cyclictest1-21systemd11:35:027
877743992727,0cyclictest0-21swapper/608:35:016
877743992727,0cyclictest0-21swapper/607:20:026
877743992726,1cyclictest938942-21apt-get09:03:006
877743992726,1cyclictest0-21swapper/612:22:596
87774399270,0cyclictest0-21swapper/609:07:586
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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