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2026-04-21 - 06:38
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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 Tue Apr 21, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1497312992623,1cyclictest0-21swapper/300:30:013
1497312992522,1cyclictest0-21swapper/323:30:013
1497312992522,1cyclictest0-21swapper/323:10:263
1497312992320,1cyclictest0-21swapper/321:40:013
1497312992219,1cyclictest0-21swapper/321:20:273
16351402211,11sleep21635981-21tr20:55:172
16284342215,13sleep11629162-21sed20:50:141
1497312992118,1cyclictest0-21swapper/323:20:013
1497312992118,1cyclictest0-21swapper/300:00:003
1497312992110,7cyclictest15691362sleep320:00:253
1497312992017,1cyclictest0-21swapper/323:48:333
1497312992017,1cyclictest0-21swapper/322:50:173
1497312992017,1cyclictest0-21swapper/319:12:033
149731299201,15cyclictest1761993-21taskset22:19:523
149731299201,14cyclictest1947906-21taskset00:19:153
1497312991916,1cyclictest0-21swapper/322:25:003
1497312991916,1cyclictest0-21swapper/322:15:003
1497312991916,1cyclictest0-21swapper/321:10:223
1497312991916,1cyclictest0-21swapper/321:00:163
1497312991916,1cyclictest0-21swapper/320:46:083
1497312991916,1cyclictest0-21swapper/320:20:013
1497312991916,1cyclictest0-21swapper/320:00:013
1497312991916,1cyclictest0-21swapper/319:18:123
1497312991916,1cyclictest0-21swapper/300:39:433
1497312991916,1cyclictest0-21swapper/300:06:153
1497312991916,1cyclictest0-21swapper/300:06:153
149731299191,14cyclictest1860866-21taskset23:20:263
149731299191,14cyclictest1531458-21taskset19:34:313
149731299191,13cyclictest1933053-21chrt00:10:133
149731299191,13cyclictest1824245-21taskset23:00:013
149731299191,13cyclictest1653491-21taskset21:09:563
149731299191,13cyclictest1549805-21taskset19:45:223
18221052180,10sleep11822223-21cat22:55:271
156529821813,3sleep01566997-21kthreadcore20:00:190
149731299187,8cyclictest15766302sleep320:10:123
149731299187,8cyclictest15317662sleep319:35:133
149731299182,12cyclictest1640297-21taskset20:55:333
1497312991815,1cyclictest0-21swapper/323:05:233
1497312991815,1cyclictest0-21swapper/320:35:173
1497312991815,1cyclictest0-21swapper/300:25:003
1497312991811,4cyclictest15185812sleep319:23:493
149731299181,13cyclictest1964177-21taskset00:30:143
149731299181,13cyclictest1919995-21taskset00:00:193
149731299181,13cyclictest1907883-21taskset23:50:413
149731299181,13cyclictest1700639-21taskset21:40:153
149731299181,13cyclictest1690332-21taskset21:30:253
149731299181,13cyclictest1683069-21taskset21:25:273
149731299181,13cyclictest1668448-21taskset21:18:103
149731299181,13cyclictest1588094-21taskset20:15:203
149731299181,13cyclictest1544292-21taskset19:44:373
149731299178,6cyclictest15189362sleep319:25:063
149731299177,7cyclictest15568612sleep319:51:073
1497312991714,1cyclictest0-21swapper/323:40:183
1497312991714,1cyclictest0-21swapper/323:35:233
149731299171,13cyclictest1799288-21taskset22:40:343
149731299171,13cyclictest1791690-21taskset22:36:083
149731299171,13cyclictest1778078-21taskset22:30:143
149731299171,13cyclictest1745618-21taskset22:07:133
149731299171,13cyclictest1736806-21taskset22:00:233
149731299171,13cyclictest1730428-21taskset21:58:033
149731299171,13cyclictest1633870-21taskset20:51:213
149731299171,12cyclictest1801129-21chrt22:45:103
149731299171,12cyclictest1621079-21taskset20:42:073
149731299171,12cyclictest1576033-21taskset20:05:463
149731299170,13cyclictest1601749-21taskset20:26:023
1497312991613,1cyclictest0-21swapper/320:30:213
149731299161,12cyclictest1877930-21taskset23:34:093
149731299161,12cyclictest1714194-21taskset21:45:493
149731299161,11cyclictest1770055-21taskset22:25:053
149731299160,12cyclictest1721868-21taskset21:50:373
18332832154,4sleep134-21ksoftirqd/123:05:181
149731299151,11cyclictest1816553-21taskset22:55:083
19149592141,4sleep11915000-21ntpq23:55:211
19177212130,9sleep21917908-21sed00:00:152
129998130,9rtkit-daemon364-21systemd-udevd20:18:332
129998130,9rtkit-daemon1804536-21grep22:45:161
6881120,2low-memory-moni88-21kswapd000:30:012
19165362121,8sleep21916540-21ssh23:58:222
18528952120,9sleep01852930-21proc_pri23:15:270
17679552120,9sleep11762385-21/usr/sbin/munin22:20:281
17459842120,8sleep21745990-21ssh22:08:212
16538062120,9sleep21653526-21apt-get21:10:042
129998120,8rtkit-daemon1-21systemd19:09:142
129998120,6rtkit-daemon739-21wpa_supplicant19:22:552
129998120,1rtkit-daemon0-21swapper/121:31:151
18707632111,7sleep2222-21plymouthd23:30:082
18310592110,2sleep21831063-21ssh23:03:022
17217972110,4sleep11721816-21ssh21:50:281
16997062110,4sleep11699712-21ssh21:38:571
15896942111,8sleep11589806-21/usr/sbin/munin20:20:171
149731299119,1cyclictest0-21swapper/319:10:013
14936562110,7sleep11495402-21cut19:05:191
129998110,8rtkit-daemon1737426-21kworker/0:0+kacpid23:56:200
129998110,7rtkit-daemon1885452-21ssh23:38:250
129998110,7rtkit-daemon1707923-21latency_hist21:45:010
129998110,6rtkit-daemon222-21plymouthd20:05:572
129998110,6rtkit-daemon1933052-21ssh00:10:130
129998110,3rtkit-daemon703-21mta-sts-daemon20:21:542
129998110,3rtkit-daemon222-21plymouthd00:05:010
129998110,3rtkit-daemon222-21plymouthd00:05:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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