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2026-05-13 - 03:58
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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 Wed May 13, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
347593993431,1cyclictest0-21swapper/322:20:013
3667732310,4sleep0471rcuog/219:20:180
8196172300,5sleep134-21ksoftirqd/100:29:181
347593992421,1cyclictest0-21swapper/321:35:003
347593992320,1cyclictest0-21swapper/322:25:283
347593992320,1cyclictest0-21swapper/319:35:003
347593992320,1cyclictest0-21swapper/319:15:223
347593992320,1cyclictest0-21swapper/300:25:203
347593992219,1cyclictest0-21swapper/323:45:183
347593992219,1cyclictest0-21swapper/323:30:253
3679512211,11sleep2367995-21ntpq19:20:222
34759399212,14cyclictest481060-21chrt20:50:183
347593992119,1cyclictest0-21swapper/322:10:183
347593992118,1cyclictest0-21swapper/321:55:133
347593992118,1cyclictest0-21swapper/321:40:013
347593992118,1cyclictest0-21swapper/320:10:013
347593992118,1cyclictest0-21swapper/319:55:163
347593992118,1cyclictest0-21swapper/300:20:013
347593992118,1cyclictest0-21swapper/300:00:303
347593992017,1cyclictest0-21swapper/323:40:173
347593992017,1cyclictest0-21swapper/323:35:213
347593992017,1cyclictest0-21swapper/322:40:003
347593992017,1cyclictest0-21swapper/322:00:013
347593992017,1cyclictest0-21swapper/321:40:033
34759399201,15cyclictest636671-21taskset22:31:423
34759399201,15cyclictest401007-21turbostat19:50:003
34759399201,14cyclictest597921-21taskset22:08:483
34759399191,14cyclictest533099-21taskset21:25:263
34759399191,14cyclictest519500-21turbostat21:20:013
34759399191,14cyclictest452254-21taskset20:27:213
34759399191,13cyclictest709356-21chrt23:20:133
8216192187,8sleep1822911-21cut00:30:201
34759399182,12cyclictest699983-21taskset23:12:073
347593991815,1cyclictest0-21swapper/300:25:003
34759399181,14cyclictest364992-21taskset19:20:183
34759399181,13cyclictest826919-21taskset00:32:463
34759399181,13cyclictest780933-21taskset00:05:153
34759399181,13cyclictest685564-21taskset23:05:043
34759399181,13cyclictest662092-21taskset22:50:143
34759399181,13cyclictest618671-21taskset22:20:193
34759399181,13cyclictest574439-21taskset21:54:243
34759399181,13cyclictest559194-21taskset21:45:033
34759399181,13cyclictest420134-21taskset20:03:073
347593991714,1cyclictest0-21swapper/323:50:173
347593991714,1cyclictest0-21swapper/323:20:003
347593991714,1cyclictest0-21swapper/321:20:123
347593991714,1cyclictest0-21swapper/320:20:033
347593991714,1cyclictest0-21swapper/300:35:143
34759399171,13cyclictest771473-21taskset23:58:023
34759399171,13cyclictest722695-21taskset23:25:263
34759399171,13cyclictest675789-21taskset22:55:343
34759399171,13cyclictest652387-21taskset22:41:283
34759399171,13cyclictest457679-21taskset20:30:183
34759399171,13cyclictest439273-21taskset20:17:033
34759399171,13cyclictest433057-21taskset20:14:383
34759399171,13cyclictest353910-21taskset19:14:533
34759399171,12cyclictest511599-21taskset21:14:563
34759399171,12cyclictest477862-21taskset20:47:173
34759399171,12cyclictest465814-21taskset20:40:163
34759399171,12cyclictest459159-21chrt20:35:113
34759399167,6cyclictest4906192sleep320:55:443
347593991613,1cyclictest0-21swapper/321:05:133
34759399161,12cyclictest795052-21taskset00:11:523
34759399161,12cyclictest684904-21taskset23:03:573
34759399161,12cyclictest660003-21taskset22:45:443
34759399161,12cyclictest497282-21taskset21:03:293
34759399161,12cyclictest388373-21taskset19:40:033
34759399161,12cyclictest388049-21taskset19:39:273
34759399161,12cyclictest372144-21taskset19:25:193
34759399161,11cyclictest401294-21chrt19:50:123
8334232151,11sleep0833469-21ntpq00:35:230
7341682150,6sleep00-21swapper/023:35:180
6210672150,5sleep2621073-21ssh22:22:202
8124002142,3sleep0812405-21apt-get00:25:130
7203102146,2sleep0171rcu_preempt23:25:200
6910522140,11sleep2691180-21python323:05:252
6141572141,6sleep0614247-21latency_hist22:20:000
4202792140,7sleep2420307-21munin-run20:04:592
3469062140,2sleep30-21swapper/319:05:273
7383872131,3sleep2738431-21ntpq23:35:242
6994942130,9sleep1699500-21ssh23:10:451
4978502131,9sleep2497877-21cut21:05:142
129998130,8rtkit-daemon629095-21taskset22:27:352
7967042120,9sleep0796746-21grep00:15:150
7171472120,9sleep2717153-21ssh23:25:022
5632992121,3sleep0564340-21memory21:45:210
5073062120,9sleep2509098-21cut21:10:232
5037712121,8sleep0503786-21idleruntime-cro21:10:010
4196632121,8sleep1419907-21/usr/sbin/munin20:00:261
129998120,8rtkit-daemon668485-21ssh22:52:212
129998120,1rtkit-daemon0-21swapper/220:15:482
7808082111,3sleep2780930-21gltestperf00:05:152
7075392110,8sleep1707545-21ssh23:16:111
7018932110,8sleep0702823-21irqstats23:15:180
6396232110,8sleep2640650-21cat22:35:182
4080742111,7sleep0408437-21irqcore19:55:160
3821782110,1sleep00-21swapper/019:35:160
3530302110,3sleep2222-21plymouthd19:10:242
3413472110,8sleep1341398-21ls19:05:141
3413122111,4sleep00-21swapper/019:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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