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2026-01-12 - 01:13
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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 rack3slot6.osadl.org (updated Sun Jan 11, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
185329911912,90cyclictest0-21swapper/011:10:120
185329911670,36cyclictest0-21swapper/010:00:220
185329911310,25cyclictest0-21swapper/011:50:120
17938211236,60sleep10-21swapper/107:05:401
16791211226,37sleep00-21swapper/007:05:150
18532991099,75cyclictest0-21swapper/008:15:140
185329910957,36cyclictest0-21swapper/008:50:120
185329910755,33cyclictest14-21ksoftirqd/010:50:130
185329910753,33cyclictest0-21swapper/012:35:120
185329910010,69cyclictest0-21swapper/009:55:140
18535999813,72cyclictest0-21swapper/111:00:141
18535999411,70cyclictest0-21swapper/108:25:151
1853599918,25cyclictest27821-21apt-get10:35:111
1853299919,60cyclictest0-21swapper/009:05:150
18532999114,60cyclictest0-21swapper/008:55:140
18535998822,22cyclictest250-21systemd-journal12:29:361
18532998812,59cyclictest0-21swapper/008:30:130
18532998811,23cyclictest0-21swapper/009:00:150
1853299876,17cyclictest0-21swapper/008:05:120
18532998714,55cyclictest0-21swapper/008:35:130
1853299868,56cyclictest0-21swapper/007:25:150
18532998619,48cyclictest0-21swapper/007:10:160
1853299857,56cyclictest0-21swapper/010:40:120
1853299856,23cyclictest0-21swapper/008:00:130
18535998412,60cyclictest22928-21apt-get07:20:161
1853299849,55cyclictest0-21swapper/011:30:110
1853299848,55cyclictest0-21swapper/010:30:120
1853299848,21cyclictest0-21swapper/008:40:150
18535998325,17cyclictest448-21dbus-daemon07:38:591
1853299838,16cyclictest0-21swapper/007:30:120
18532998338,25cyclictest14-21ksoftirqd/008:45:130
18532998234,31cyclictest14-21ksoftirqd/010:35:120
18532998224,44cyclictest0-21swapper/011:45:230
1853299814,58cyclictest31379-21sshd10:45:130
18532998113,17cyclictest0-21swapper/007:50:130
18532998113,17cyclictest0-21swapper/007:50:120
18535998022,20cyclictest448-21dbus-daemon11:55:001
1853299809,53cyclictest0-21swapper/009:25:200
1853299809,20cyclictest0-21swapper/009:10:130
1853299807,55cyclictest0-21swapper/012:20:110
18532998010,52cyclictest0-21swapper/012:00:130
18532998010,51cyclictest0-21swapper/012:05:130
18535997922,20cyclictest488-21gdbus09:09:591
18535997921,20cyclictest22440-21tr10:19:591
18532997917,45cyclictest0-21swapper/007:15:180
1853299788,53cyclictest0-21swapper/010:15:140
18532997818,43cyclictest0-21swapper/007:35:190
18532997810,48cyclictest0-21swapper/009:35:120
1853599778,23cyclictest20871-21apt-get07:15:141
18535997713,53cyclictest0-21swapper/111:45:211
18532997718,43cyclictest0-21swapper/011:35:130
1853299769,51cyclictest0-21swapper/010:10:140
18532997622,39cyclictest0-21swapper/007:45:130
1853599759,24cyclictest16952-21apt-get08:35:141
18535997424,15cyclictest13300-21sh08:25:001
18532997415,19cyclictest11014-21cron11:20:000
1853599734,37cyclictest3002-21/usr/sbin/munin12:30:251
1853299737,49cyclictest0-21swapper/009:50:130
1853599728,23cyclictest31376-21apt-get10:45:131
1853599728,22cyclictest31443-21apt-get12:20:111
18532997224,33cyclictest14-21ksoftirqd/009:45:260
18532997041,20cyclictest14-21ksoftirqd/011:55:140
18532997015,40cyclictest0-21swapper/007:20:250
18532997010,41cyclictest0-21swapper/010:55:250
18532996917,36cyclictest14-21ksoftirqd/011:05:150
18532996915,40cyclictest0-21swapper/012:10:110
18532996912,22cyclictest649-21apt09:20:120
18532996829,26cyclictest0-21swapper/009:30:130
18532996819,25cyclictest12788-21idleruntime-cro11:25:000
18532996816,28cyclictest8935-21ntpq08:10:300
18532996722,32cyclictest0-21swapper/010:25:130
18532996714,40cyclictest0-21swapper/011:40:140
18532996712,21cyclictest0-21swapper/008:20:170
18532996626,19cyclictest787-21aten2.4-expect12:25:160
18532996622,23cyclictest31355-21df_inode09:15:210
18532996616,20cyclictest250-21systemd-journal11:30:000
18532996612,29cyclictest17302-21/usr/sbin/munin10:05:310
1853599657,19cyclictest12954-21apt-get11:25:131
18532996525,26cyclictest0-21swapper/008:25:140
18532996521,18cyclictest22883-21cstates10:20:180
18532996521,18cyclictest22883-21cstates10:20:170
18532996519,23cyclictest3308-21cat07:55:240
1853599647,20cyclictest4242-21apt-get12:35:111
18532996430,23cyclictest14-21ksoftirqd/009:40:120
18532996417,23cyclictest31249-21cron12:19:590
18532996414,27cyclictest3350-21python312:30:320
18532996313,37cyclictest0-21swapper/011:00:130
18532996313,31cyclictest0-21swapper/007:40:110
1853599617,17cyclictest7711-21apt-get11:10:121
1853599607,19cyclictest7985-21apt-get09:40:121
1853599606,18cyclictest22247-21apt-get08:50:121
18535996042,11cyclictest26-21ksoftirqd/108:00:011
1853599588,19cyclictest9451-21apt-get11:15:111
1853599583,48cyclictest778-21cron07:29:591
18535995830,21cyclictest778-21cron12:20:001
1853599577,14cyclictest0-21swapper/108:00:221
18535995739,11cyclictest26-21ksoftirqd/107:50:011
18535995737,12cyclictest26-21ksoftirqd/110:30:011
18535995730,21cyclictest27975-21cron07:35:011
18535995730,18cyclictest19956-21sed11:45:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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