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2026-08-22 - 20:00
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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 Sat Aug 22, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
273619911711,93cyclictest0-21swapper/007:55:120
273619911312,86cyclictest0-21swapper/010:00:130
273619911311,86cyclictest0-21swapper/007:35:230
273619911211,84cyclictest0-21swapper/011:45:140
273619911064,34cyclictest0-21swapper/008:15:150
273619910911,23cyclictest0-21swapper/011:25:170
273619910910,82cyclictest0-21swapper/010:25:160
273619910760,33cyclictest14-21ksoftirqd/011:30:140
273619910660,35cyclictest14-21ksoftirqd/007:45:120
27361991048,76cyclictest0-21swapper/012:15:120
273619910456,33cyclictest0-21swapper/008:30:140
273619910253,32cyclictest14-21ksoftirqd/012:20:120
273619910253,30cyclictest14-21ksoftirqd/009:05:150
273619910253,29cyclictest14-21ksoftirqd/012:10:160
27072210015,39sleep00-21swapper/007:08:540
27361999718,58cyclictest0-21swapper/010:50:130
27361999715,60cyclictest0-21swapper/007:40:260
27361999712,61cyclictest0-21swapper/010:30:140
27361999512,63cyclictest0-21swapper/007:15:130
27361999411,62cyclictest0-21swapper/009:55:130
27361999411,23cyclictest0-21swapper/009:25:170
167762930,5chrt16774-21grep08:05:381
27361999113,56cyclictest0-21swapper/008:00:230
27361999012,24cyclictest0-21swapper/011:40:130
27361998914,53cyclictest0-21swapper/008:10:130
27361998912,57cyclictest0-21swapper/009:45:130
2736599886,68cyclictest6068-21diskmemload09:10:261
27361998811,57cyclictest0-21swapper/007:10:110
27361998737,33cyclictest14-21ksoftirqd/010:05:120
27361998737,33cyclictest14-21ksoftirqd/010:05:120
27361998729,37cyclictest0-21swapper/008:05:140
27361998711,58cyclictest0-21swapper/011:20:130
27361998711,57cyclictest0-21swapper/008:50:120
27365998512,60cyclictest14086-21apt-get08:00:161
27361998517,47cyclictest0-21swapper/011:50:130
27361998512,55cyclictest0-21swapper/010:55:150
27361998512,53cyclictest0-21swapper/007:30:120
27361998512,52cyclictest0-21swapper/011:55:120
27361998511,57cyclictest0-21swapper/008:40:150
27361998435,31cyclictest0-21swapper/008:25:130
27361998412,53cyclictest0-21swapper/011:35:130
27361998412,53cyclictest0-21swapper/011:35:130
27361998411,56cyclictest0-21swapper/011:15:270
27365998325,16cyclictest27383-21sort07:10:011
27361998310,52cyclictest0-21swapper/010:45:150
27365998230,39cyclictest0-21swapper/111:10:111
27361998233,29cyclictest14-21ksoftirqd/007:20:140
27365998125,16cyclictest12997-21tr12:30:271
27365998123,19cyclictest243-21systemd-journal12:36:551
2736599803,24cyclictest26331-21/usr/sbin/munin08:35:251
27365998022,18cyclictest243-21systemd-journal07:37:351
27365997925,17cyclictest8090-21sort12:15:351
27365997922,19cyclictest10616-21awk10:50:401
27361997912,47cyclictest0-21swapper/007:25:130
27361997910,52cyclictest0-21swapper/009:30:140
2736599788,23cyclictest10287-21apt-get07:50:131
2736599788,22cyclictest3615-21apt-get12:05:131
2736599788,17cyclictest18529-21apt-get11:15:241
27365997820,18cyclictest31334-21sort11:50:251
2736599777,20cyclictest11778-21apt-get09:25:151
2736599774,13cyclictest23131-21python309:55:341
27365997724,19cyclictest481-21gdbus11:30:011
27365997719,14cyclictest11442-1kworker/u9:008:16:471
27361997733,27cyclictest0-21swapper/010:15:120
2736599769,16cyclictest32537-21apt-get11:55:141
2736599768,18cyclictest29703-21apt-get07:15:131
2736599768,17cyclictest3874-21apt-get10:35:141
2736599767,18cyclictest773-21apt-get07:25:111
2736599767,17cyclictest17612-21apt-get08:10:151
27365997622,20cyclictest457-21dbus-daemon09:55:011
27365997621,16cyclictest9396-21sort10:50:011
27365997620,17cyclictest29800-21sh11:45:311
27361997614,51cyclictest0-21swapper/012:05:140
2736599758,17cyclictest10647-21apt-get12:25:151
2736599757,16cyclictest4442-21apt-get09:05:161
2736599755,12cyclictest0-21swapper/109:18:251
27365997517,18cyclictest2508-21cron09:00:011
27365997513,19cyclictest243-21systemd-journal12:21:551
27361997529,28cyclictest0-21swapper/008:20:130
27361997512,47cyclictest0-21swapper/009:00:130
27361997511,45cyclictest0-21swapper/008:35:150
2736599747,18cyclictest31467-21apt-get07:20:161
2736599747,17cyclictest6812-21apt-get07:40:251
2736599745,35cyclictest0-21swapper/107:49:551
2736599743,19cyclictest27319-21/usr/sbin/munin11:40:241
2736599742,22cyclictest27396-21cron10:10:021
27365997418,14cyclictest26-21ksoftirqd/109:20:331
27365997418,13cyclictest0-21swapper/109:35:321
27365997415,21cyclictest243-21systemd-journal09:05:001
27361997422,33cyclictest14-21ksoftirqd/011:05:130
2736599737,17cyclictest24043-21apt-get10:00:141
2736599733,24cyclictest19536-21ntp_states09:45:311
2736599733,24cyclictest13639-21ls08:00:021
27365997319,17cyclictest29011-21cron07:15:001
27365997317,16cyclictest243-21systemd-journal08:22:441
27365997314,12cyclictest0-21swapper/110:05:251
27365997314,12cyclictest0-21swapper/110:05:251
2736199736,46cyclictest6068-21diskmemload09:10:270
2736599724,24cyclictest24419-21cron08:30:001
2736599722,13cyclictest27960-21sh08:44:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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