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2026-03-22 - 10:25
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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 Sun Mar 22, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3625064993633,1cyclictest0-21swapper/323:50:003
3625064992724,1cyclictest0-21swapper/323:40:003
3625064992724,1cyclictest0-21swapper/322:00:003
3625064992524,0cyclictest0-21swapper/323:10:013
3625064992521,1cyclictest0-21swapper/322:40:123
38277892236,13sleep03828042-21sed21:40:000
3625064992320,1cyclictest0-21swapper/322:55:193
3625064992320,1cyclictest0-21swapper/322:50:013
3625064992320,1cyclictest0-21swapper/322:40:013
3625064992219,1cyclictest0-21swapper/323:25:123
3625064992219,1cyclictest0-21swapper/322:15:003
3625064992219,1cyclictest0-21swapper/322:15:003
3625064992219,1cyclictest0-21swapper/321:35:013
362506499221,15cyclictest3646437-21taskset19:24:563
382955522117,2sleep13830671-21ssh21:40:171
3625064992119,1cyclictest0-21swapper/322:20:003
3625064992118,1cyclictest0-21swapper/323:50:263
3625064992118,1cyclictest0-21swapper/322:30:253
3625064992118,1cyclictest0-21swapper/321:25:123
3625064992118,1cyclictest0-21swapper/300:16:153
362506499211,15cyclictest3896556-21taskset22:22:083
3625064992018,1cyclictest0-21swapper/322:00:193
3625064992018,1cyclictest0-21swapper/320:55:173
3625064992017,1cyclictest0-21swapper/323:15:193
3625064992017,1cyclictest0-21swapper/321:35:403
3625064992017,1cyclictest0-21swapper/321:11:173
3625064992017,1cyclictest0-21swapper/321:05:233
3625064992017,1cyclictest0-21swapper/320:51:493
3625064992017,1cyclictest0-21swapper/319:59:563
3625064992017,1cyclictest0-21swapper/300:35:013
362506499201,15cyclictest4052146-21taskset00:04:233
362506499201,15cyclictest3652594-21taskset19:27:133
3625064991917,1cyclictest0-21swapper/322:25:183
3625064991917,1cyclictest0-21swapper/321:40:233
3625064991916,1cyclictest0-21swapper/323:55:203
3625064991916,1cyclictest0-21swapper/323:55:203
3625064991916,1cyclictest0-21swapper/323:30:163
3625064991916,1cyclictest0-21swapper/323:05:113
3625064991916,1cyclictest0-21swapper/322:05:173
3625064991916,1cyclictest0-21swapper/321:50:483
3625064991916,1cyclictest0-21swapper/321:20:263
3625064991916,1cyclictest0-21swapper/320:19:533
3625064991916,1cyclictest0-21swapper/320:10:173
3625064991916,1cyclictest0-21swapper/319:35:273
362506499191,14cyclictest3698966-21taskset20:05:173
362506499191,14cyclictest3672218-21chrt19:45:013
362506499191,13cyclictest4058879-21taskset00:06:193
362506499191,13cyclictest3768630-21sleep21:04:553
362506499188,7cyclictest36591852sleep319:34:283
362506499187,8cyclictest3678600-21turbostat19:54:543
3625064991816,1cyclictest0-21swapper/319:10:123
3625064991816,1cyclictest0-21swapper/300:12:573
3625064991815,1cyclictest0-21swapper/323:20:123
3625064991815,1cyclictest0-21swapper/320:45:253
3625064991815,1cyclictest0-21swapper/320:40:203
3625064991815,1cyclictest0-21swapper/320:40:003
3625064991815,1cyclictest0-21swapper/320:05:003
3625064991815,1cyclictest0-21swapper/300:35:193
362506499181,13cyclictest3789668-21taskset21:15:133
40965802171,11sleep04096617-21ntpq00:30:230
3625064991714,1cyclictest0-21swapper/323:45:003
3625064991714,1cyclictest0-21swapper/322:50:193
3625064991714,1cyclictest0-21swapper/319:15:223
3625064991714,1cyclictest0-21swapper/300:26:093
362506499171,13cyclictest3842058-21taskset21:46:123
362506499171,12cyclictest3730340-21taskset20:30:113
362506499171,12cyclictest3730340-21taskset20:30:113
362506499171,12cyclictest3723866-21taskset20:25:103
362506499170,13cyclictest3958143-21taskset23:00:533
129998170,2rtkit-daemon222-21plymouthd00:20:340
38105212160,6sleep13810670-21timerwakeupswit21:25:261
3625064991614,1cyclictest0-21swapper/319:46:133
3625064991614,1cyclictest0-21swapper/300:20:233
362506499161,12cyclictest3723441-21taskset20:22:573
38280432150,6sleep1331ktimers/121:40:001
37895052150,8sleep23789667-21diskstats21:15:132
37752732150,7sleep13775306-21apt-get21:05:141
40734742145,5sleep24073596-21mailstats00:15:252
40509092141,9sleep14050915-21ssh00:00:371
38426362141,9sleep23842638-21ssh21:47:562
41043652131,9sleep24104414-21ntpq00:35:222
40212052130,4sleep2222-21plymouthd23:44:222
39671802139,3sleep03897578-21kworker/0:2+kacpi_notify23:09:450
39197002130,10sleep13919706-21ssh22:36:491
38823712131,3sleep10-21swapper/122:15:131
37648812130,10sleep13766727-21tr20:55:191
129998130,9rtkit-daemon3850625-21ssh21:53:380
129998130,3rtkit-daemon3631666-21munin-node21:45:390
40442042120,9sleep04044210-21ssh23:58:440
40442042120,9sleep04044210-21ssh23:58:440
39437492120,8sleep13943755-21ssh22:54:181
38660892120,9sleep03866095-21ssh22:03:380
37176822121,8sleep03717882-21if_eno220:20:150
129998120,8rtkit-daemon4054882-21tr00:05:170
129998120,3rtkit-daemon703-21mta-sts-daemon23:15:420
129998120,3rtkit-daemon222-21plymouthd21:19:020
129998120,1rtkit-daemon0-21swapper/120:21:251
40907942111,7sleep24090800-21ssh00:29:292
40454732110,8sleep04046402-21/usr/sbin/munin00:00:160
40281602111,8sleep14028164-21ssh23:46:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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