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2026-04-18 - 09:09
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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 rackeslot8.osadl.org (updated Sat Apr 18, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2561453992825,1cyclictest0-21swapper/319:34:593
2561453992623,1cyclictest0-21swapper/322:00:013
2561453992522,1cyclictest0-21swapper/323:35:263
2561453992522,1cyclictest0-21swapper/323:35:253
2561453992522,1cyclictest0-21swapper/323:00:023
2561453992522,1cyclictest0-21swapper/319:15:013
2561453992421,1cyclictest0-21swapper/323:19:593
2561453992421,1cyclictest0-21swapper/300:20:013
2561453992320,1cyclictest0-21swapper/300:30:013
2561453992220,1cyclictest0-21swapper/323:05:013
2561453992219,1cyclictest0-21swapper/322:10:013
2561453992219,1cyclictest0-21swapper/300:35:133
2561453992118,1cyclictest0-21swapper/323:40:193
2561453992118,1cyclictest0-21swapper/321:40:003
2561453992118,1cyclictest0-21swapper/321:20:013
2561453992118,1cyclictest0-21swapper/320:55:013
2561453992118,1cyclictest0-21swapper/300:00:223
2561453992017,1cyclictest0-21swapper/322:35:133
2561453992017,1cyclictest0-21swapper/322:30:143
2561453992017,1cyclictest0-21swapper/322:15:123
2561453992017,1cyclictest0-21swapper/319:54:593
2561453992013,4cyclictest27724362sleep321:45:123
256145399201,14cyclictest2679465-21taskset20:40:013
256145399201,14cyclictest2576298-21taskset19:18:233
256145399199,7cyclictest30186612sleep300:20:323
256145399198,7cyclictest27365852sleep321:20:183
256145399198,7cyclictest26405182sleep320:08:073
2561453991916,1cyclictest0-21swapper/323:30:153
2561453991916,1cyclictest0-21swapper/321:50:183
2561453991916,1cyclictest0-21swapper/321:00:013
2561453991915,1cyclictest0-21swapper/321:10:223
256145399191,14cyclictest3035404-21taskset00:34:103
256145399191,14cyclictest3003989-21taskset00:13:053
256145399191,14cyclictest2795814-21taskset22:00:113
256145399191,14cyclictest2795814-21taskset22:00:103
256145399191,14cyclictest2755370-21taskset21:31:243
256145399191,13cyclictest2857732-21chrt22:40:133
30355832182,7sleep0222-21plymouthd00:34:410
2561453991816,1cyclictest0-21swapper/319:10:003
2561453991816,0cyclictest0-21swapper/323:57:483
2561453991815,1cyclictest0-21swapper/323:20:123
2561453991815,1cyclictest0-21swapper/322:25:173
2561453991815,1cyclictest0-21swapper/321:25:253
2561453991815,1cyclictest0-21swapper/320:35:263
2561453991815,1cyclictest0-21swapper/319:45:123
256145399181,14cyclictest2965650-21taskset23:49:243
256145399181,14cyclictest2965650-21taskset23:49:243
256145399181,13cyclictest2933879-21taskset23:26:583
256145399181,13cyclictest2909636-21taskset23:10:243
256145399181,13cyclictest2903870-21taskset23:09:463
256145399181,13cyclictest2880585-21taskset22:54:563
256145399181,13cyclictest2826644-21taskset22:20:073
256145399181,13cyclictest2665299-21taskset20:25:173
256145399181,13cyclictest2655096-21taskset20:20:173
256145399181,13cyclictest2634094-21taskset20:03:213
256145399181,13cyclictest2583858-21taskset19:25:173
273503121712,3sleep2222-21plymouthd21:20:172
256145399175,9cyclictest26019242sleep319:37:363
2561453991714,1cyclictest0-21swapper/322:45:213
2561453991714,1cyclictest0-21swapper/321:03:193
2561453991714,1cyclictest0-21swapper/320:45:263
256145399171,13cyclictest2653235-21taskset20:15:473
256145399171,13cyclictest2621683-21taskset19:55:073
256145399171,13cyclictest2582694-21taskset19:22:523
256145399171,12cyclictest2966141-21taskset23:50:053
256145399171,12cyclictest2770550-21taskset21:40:273
256145399171,12cyclictest2717756-21taskset21:09:563
256145399171,12cyclictest2672826-21taskset20:34:563
256145399161,12cyclictest2995407-21taskset00:05:283
256145399161,12cyclictest2811027-21taskset22:10:013
256145399161,12cyclictest2608226-21taskset19:40:513
256145399160,12cyclictest2640954-21taskset20:10:073
30042012151,10sleep13004207-21ssh00:13:491
129998150,10rtkit-daemon2996241-21ssh00:08:040
29284172140,3sleep02928892-21kthreadcore23:25:170
28668452141,10sleep10-21swapper/122:45:161
27726042140,10sleep12772741-21grep21:45:141
27636712141,11sleep12763677-21ssh21:38:001
27578502141,10sleep22758625-21kthreadcore21:35:182
26526502141,10sleep02652697-21ntp_states20:15:220
129998140,6rtkit-daemon703-21mta-sts-daemon22:49:080
25620272131,3sleep12562579-21sed19:10:151
129998130,9rtkit-daemon3004139-21ssh00:13:370
30268492120,3sleep23026855-21ssh00:26:532
29724422120,9sleep22972446-21ssh23:51:362
29495202121,3sleep0222-21plymouthd23:37:240
29495202121,3sleep0222-21plymouthd23:37:230
29380792121,8sleep10-21swapper/123:30:191
28887402120,9sleep02888746-21ssh23:00:030
28331942120,9sleep12833198-21ssh22:22:201
27262822120,2sleep20-21swapper/221:15:172
26054632120,9sleep12607369-21cut19:40:191
129998120,8rtkit-daemon3018752-21ssh00:20:462
129998120,6rtkit-daemon2195379-21ntpd20:35:241
129998120,4rtkit-daemon2568047-21munin-node22:34:160
129998120,3rtkit-daemon0-21swapper/120:24:111
29346112110,3sleep20-21swapper/223:29:112
29186012110,2sleep0222-21plymouthd23:17:390
28339652110,8sleep22833971-21ssh22:24:412
27231882111,7sleep22718083-21/usr/sbin/munin21:10:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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