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2026-05-22 - 10:26
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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 Fri May 22, 2026 00:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27161892235174,20sleep20-21swapper/219:08:462
27161942231166,20sleep70-21swapper/719:08:507
27162562227165,19sleep40-21swapper/419:09:444
27161812227165,20sleep30-21swapper/319:08:393
27160962225165,19sleep10-21swapper/119:07:241
27161002209179,19sleep50-21swapper/519:07:285
27160452209180,19sleep00-21swapper/019:06:420
27160332202172,20sleep60-21swapper/619:06:326
2716473993432,1cyclictest2753289-21cron20:15:020
2716484993327,5cyclictest290-21plymouthd19:20:024
271648499330,32cyclictest0-21swapper/419:30:114
2716490993227,3cyclictest2728284-21kworker/u32:3+ext4-rsv-conversion23:15:017
271649099320,31cyclictest2814663-21cron22:05:017
271648699320,4cyclictest2747749-21cron20:05:025
271648499320,27cyclictest0-21swapper/420:50:114
2716473993129,1cyclictest2745022-21920:00:020
2716473993128,2cyclictest2853687-21echo23:15:020
2716473993126,4cyclictest2825784-21cron22:25:010
271649099300,29cyclictest0-21swapper/723:15:127
2716489993028,1cyclictest0-21swapper/620:20:106
271648999300,29cyclictest2873137-21cron23:50:026
271648699300,29cyclictest290-21plymouthd21:25:015
2716484993027,0cyclictest0-21swapper/420:30:114
2716484993025,1cyclictest2736806-21date19:45:024
271648499300,0cyclictest0-21swapper/420:45:114
2716480993028,1cyclictest2896360-21appstreamcli00:30:013
2716480993028,1cyclictest2885357-21sed00:10:013
271648099300,29cyclictest290-21plymouthd22:00:013
271648099300,29cyclictest0-21swapper/323:20:023
271648099300,29cyclictest0-21swapper/322:20:103
271648099300,29cyclictest0-21swapper/321:50:013
271648099300,29cyclictest0-21swapper/321:45:013
271648099300,29cyclictest0-21swapper/320:45:113
2716478993027,2cyclictest2820661-21apt-get22:15:112
2716478993026,3cyclictest2795511-21latency_hist21:30:012
271647599300,30cyclictest0-21swapper/123:40:021
2716473993027,2cyclictest2739396-21cron19:50:020
2716490992928,1cyclictest2868022-21apt-get23:40:127
2716490992928,1cyclictest2736647-21919:45:027
2716490992928,1cyclictest0-21swapper/722:55:127
271649099290,28cyclictest2776043-21apt-get20:55:117
271649099290,28cyclictest0-21swapper/723:05:117
271649099290,28cyclictest0-21swapper/721:00:127
271649099290,28cyclictest0-21swapper/719:50:027
2716489992928,1cyclictest856-21dbus-daemon23:15:016
271648999290,28cyclictest2854078-21apt-get23:15:116
271648999290,28cyclictest0-21swapper/622:10:116
271648999290,28cyclictest0-21swapper/622:10:116
271648999290,28cyclictest0-21swapper/621:30:036
271648999290,28cyclictest0-21swapper/620:30:116
271648999290,28cyclictest0-21swapper/619:15:116
271648999290,28cyclictest0-21swapper/600:00:106
271648699290,28cyclictest2728669-21apt-get19:30:115
271648699290,28cyclictest2719202-21systemd-run19:15:015
271648699290,28cyclictest0-21swapper/523:50:125
271648699290,28cyclictest0-21swapper/523:30:115
271648699290,28cyclictest0-21swapper/521:30:045
271648699290,28cyclictest0-21swapper/520:45:105
271648699290,28cyclictest0-21swapper/520:25:115
271648699290,28cyclictest0-21swapper/519:25:015
271648699290,28cyclictest0-21swapper/500:10:125
271648499290,1cyclictest2891165-21apt-get00:20:124
2716480992928,1cyclictest0-21swapper/323:35:013
2716480992927,1cyclictest0-21swapper/300:35:123
271648099290,28cyclictest2781231-21unin-run21:05:013
271648099290,28cyclictest0-21swapper/323:40:123
271648099290,28cyclictest0-21swapper/323:35:103
271648099290,28cyclictest0-21swapper/321:20:113
271648099290,28cyclictest0-21swapper/321:05:113
271648099290,28cyclictest0-21swapper/319:50:023
271648099290,28cyclictest0-21swapper/319:40:103
271648099290,1cyclictest2899093-21cron00:35:013
271648099290,1cyclictest2733786-21cron19:40:013
271648099290,1cyclictest0-21swapper/323:25:133
2716478992925,4cyclictest2870396-21awk23:45:012
271647899290,28cyclictest2798358-21apt-get21:35:132
271647899290,28cyclictest2750959-21apt-get20:10:102
271647899290,28cyclictest0-21swapper/222:25:122
271647899290,28cyclictest0-21swapper/221:45:112
271647899290,28cyclictest0-21swapper/200:00:112
271647599290,29cyclictest1-21systemd22:55:001
271647599290,28cyclictest2731448-21apt-get19:35:111
271647599290,28cyclictest0-21swapper/121:40:101
271647599290,28cyclictest0-21swapper/121:35:131
271647599290,28cyclictest0-21swapper/120:30:111
271647599290,28cyclictest0-21swapper/119:40:091
271647599290,28cyclictest0-21swapper/119:30:121
271647599290,1cyclictest2759361-21apt-get20:25:121
271647599290,1cyclictest2756581-21apt-get20:20:101
271647599290,1cyclictest0-21swapper/100:05:011
271647399290,28cyclictest2876356-21apt-get23:55:130
271647399290,28cyclictest0-21swapper/023:45:120
271647399290,28cyclictest0-21swapper/022:30:120
271647399290,28cyclictest0-21swapper/022:05:100
271647399290,28cyclictest0-21swapper/022:05:100
271647399290,28cyclictest0-21swapper/021:25:110
271647399290,28cyclictest0-21swapper/019:15:110
271647399290,28cyclictest0-21swapper/000:00:110
271647399290,1cyclictest0-21swapper/019:55:010
271647399290,1cyclictest0-21swapper/000:35:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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