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2026-07-06 - 08:12
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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 highest latencies:
System rackeslot8.osadl.org (updated Mon Jul 06, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
56037221400,5sleep1321rcuc/121:40:001
39222121320,3sleep2421rcuc/219:35:182
357344993532,1cyclictest0-21swapper/300:00:163
357344993027,1cyclictest0-21swapper/320:05:013
357344993026,1cyclictest0-21swapper/319:40:013
357344992724,1cyclictest0-21swapper/321:05:003
357344992724,1cyclictest0-21swapper/321:05:003
357344992623,1cyclictest0-21swapper/321:40:073
357344992522,1cyclictest0-21swapper/321:10:153
357344992421,1cyclictest0-21swapper/322:19:593
357344992421,1cyclictest0-21swapper/320:20:003
357344992118,1cyclictest0-21swapper/320:55:173
357344992118,1cyclictest0-21swapper/300:20:173
357344992116,3cyclictest591515-21sleep22:00:003
35734499211,15cyclictest493742-21taskset20:51:323
357344992110,7cyclictest779402-21turbostat00:00:003
35734499202,13cyclictest834169-21taskset00:34:563
357344992017,1cyclictest0-21swapper/322:31:173
357344992017,1cyclictest0-21swapper/322:00:143
357344992017,1cyclictest0-21swapper/319:15:163
35734499201,15cyclictest599912-21taskset22:05:163
35734499201,15cyclictest363497-21taskset19:12:573
35734499201,14cyclictest809391-21taskset00:16:163
35734499201,14cyclictest809391-21taskset00:16:153
357344991916,1cyclictest0-21swapper/321:20:013
357344991916,1cyclictest0-21swapper/319:20:083
357344991916,1cyclictest0-21swapper/300:40:003
357344991915,1cyclictest0-21swapper/320:20:193
35734499191,14cyclictest755073-21taskset23:42:443
35734499191,14cyclictest716457-21taskset23:19:103
35734499191,14cyclictest677434-21taskset22:54:373
35734499191,14cyclictest461269-21taskset20:25:263
357344991816,1cyclictest0-21swapper/322:20:033
357344991816,1cyclictest0-21swapper/300:10:213
357344991816,0cyclictest0-21swapper/321:30:173
357344991815,1cyclictest0-21swapper/323:35:003
357344991815,1cyclictest0-21swapper/323:05:293
357344991815,1cyclictest0-21swapper/322:40:153
357344991815,1cyclictest0-21swapper/321:35:243
357344991815,1cyclictest0-21swapper/321:20:113
35734499181,14cyclictest723339-21taskset23:21:263
35734499181,14cyclictest708188-21taskset23:12:563
35734499181,14cyclictest638265-21taskset22:29:263
35734499181,14cyclictest574330-21taskset21:45:533
35734499181,13cyclictest793933-21taskset00:06:453
35734499181,13cyclictest770049-21taskset23:50:463
35734499181,13cyclictest685440-21sleep23:04:543
35734499181,13cyclictest662281-21taskset22:45:063
35734499181,13cyclictest662281-21taskset22:45:063
35734499181,13cyclictest487523-21taskset20:48:393
35734499181,13cyclictest480259-21taskset20:40:213
35734499181,13cyclictest474443-21taskset20:35:403
35734499181,13cyclictest442389-21taskset20:10:393
35734499181,13cyclictest430424-21taskset20:05:123
35734499181,13cyclictest390455-21taskset19:30:223
35734499181,12cyclictest607210-21sleep22:14:563
35734499172,12cyclictest384847-21taskset19:27:333
357344991714,1cyclictest0-21swapper/319:55:263
357344991714,1cyclictest0-21swapper/319:45:173
35734499171,13cyclictest762792-21taskset23:47:173
35734499171,13cyclictest746520-21taskset23:35:423
35734499171,13cyclictest731563-21taskset23:27:403
35734499171,13cyclictest581382-21taskset21:50:223
35734499171,13cyclictest537020-21taskset21:25:043
35734499171,13cyclictest512952-21taskset21:05:433
35734499171,13cyclictest512952-21taskset21:05:423
35734499171,13cyclictest416810-21taskset19:51:303
35734499171,12cyclictest824926-21taskset00:25:543
35734499171,12cyclictest824926-21taskset00:25:533
35734499171,12cyclictest677965-21chrt22:55:133
35734499171,12cyclictest468223-21taskset20:32:483
6544782161,11sleep2654155-21sendmail-msp22:40:132
4224982161,11sleep0422544-21ntpq19:55:210
35734499161,11cyclictest646570-21taskset22:35:043
35734499161,11cyclictest646570-21taskset22:35:043
35734499161,11cyclictest404011-21taskset19:41:163
7931052150,2sleep00-21swapper/000:05:270
4370582151,11sleep1437141-21ps20:10:181
6369192141,10sleep2636925-21ssh22:25:422
4237662141,6sleep2423550-21sendmail-msp20:00:042
3981642141,1sleep10-21swapper/119:40:151
35734499141,10cyclictest357448-21chrt19:10:013
7797542131,8sleep2779440-21sendmail-msp00:00:122
7692842133,6sleep2769325-21ntpq23:50:222
6293742130,10sleep1629377-21sh22:21:241
8333732120,9sleep1833379-21ssh00:32:391
8034822120,9sleep2803678-21basename00:15:162
8034822120,9sleep2803678-21basename00:15:152
5514842120,9sleep0551490-21ssh21:32:310
4555482120,8sleep1455560-21unix_chkpwd20:25:011
4352932120,4sleep1435433-21ntpq20:05:211
3916932120,4sleep0391431-21apt-get19:35:040
7793652111,7sleep2779394-21unix_chkpwd23:59:592
7086732110,3sleep1708678-21sh23:14:201
7008882111,3sleep1222-21plymouthd23:09:311
6676462110,8sleep0667684-21ld22:45:240
6676462110,8sleep0667684-21ld22:45:230
6384672110,8sleep1638473-21ssh22:29:581
6071692111,6sleep1607224-21munin-run22:10:011
4675832111,7sleep0467705-21python320:30:240
4109842111,7sleep1410986-21apt-get19:50:131
8122022101,2sleep00-21swapper/000:20:190
7301482107,1sleep00-21swapper/023:25:210
7225702102,5sleep0722652-21python323:20:290
6617192100,3sleep1661727-21ssh22:44:131
6302062102,5sleep0222-21plymouthd22:23:420
6266812100,7sleep2623181-21/usr/sbin/munin22:20:212
6214652100,2sleep0222-21plymouthd22:16:140
5749062102,2sleep2171rcu_preempt21:47:322
5592622101,7sleep20-21swapper/221:37:272
5082572101,6sleep1508872-21kthreadcore21:05:181
5082572101,6sleep1508872-21kthreadcore21:05:181
4637072100,7sleep1465392-21kthreadcore20:30:171
4562192101,6sleep1456592-21sed20:25:171
4560152100,7sleep0456215-21hddtemp_smartct20:25:160
4096132100,3sleep1409733-21ntpq19:45:191
3726582100,7sleep2372738-21fschecks_time19:20:152
3677592101,5sleep2369466-21cut19:15:182
3664632100,7sleep0366910-21cut19:15:150
3635662101,2sleep00-21swapper/019:13:520
3628942100,7sleep2362993-21sed19:10:252
841532290,2sleep2222-21plymouthd00:38:412
818287290,6sleep2818289-21ssh00:24:102
813040290,7sleep1814646-21cut00:20:201
785881292,4sleep1731108-21kworker/u16:1+rpciod00:01:071
748422290,6sleep2748083-21sendmail-msp23:40:152
716450290,6sleep2716456-21ssh23:19:102
690972291,4sleep2691059-21ntpq23:00:212
652796292,4sleep2222-21plymouthd22:36:162
652796292,4sleep2222-21plymouthd22:36:162
646903290,6sleep0647046-21basename22:35:140
646903290,6sleep0647046-21basename22:35:130
542269291,5sleep0542310-21ntpq21:25:210
527774291,6sleep20-21swapper/221:16:462
475542290,7sleep2476362-21cut20:40:172
455241290,1sleep20-21swapper/220:21:052
425346290,6sleep1425214-21kthreadcore20:00:191
385036291,5sleep1385041-21cron19:30:001
357535291,4sleep1357537-21apt-get19:10:121
832004281,4sleep2832052-21ntpq00:30:232
809320280,1sleep0222-21plymouthd00:16:060
809320280,1sleep0222-21plymouthd00:16:060
794976280,6sleep10-21swapper/100:09:451
778230282,3sleep1222-21plymouthd23:56:531
739416280,2sleep10-21swapper/123:32:491
739409280,1sleep0222-21plymouthd23:32:480
722394281,4sleep1722434-21ntpq23:20:261
709201281,3sleep0709236-21apt-get23:15:110
707702280,2sleep2171rcu_preempt23:11:322
676428281,4sleep2676434-21ssh22:51:432
669230281,5sleep1513309-21diskmemload22:48:301
669230281,5sleep1513309-21diskmemload22:48:291
653746280,1sleep10-21swapper/122:38:561
653746280,1sleep10-21swapper/122:38:551
622830281,4sleep2622857-21latency_hist22:20:012
613444280,6sleep2613450-21ssh22:10:382
584020280,4sleep1584151-21cpuspeed_turbos21:55:131
584008280,4sleep0584019-21ssh21:55:130
574210280,2sleep1574216-21ssh21:45:341
549751280,5sleep2550060-21needreboot21:30:212
545068281,4sleep1545275-21sh21:30:161
539375281,4sleep1541082-21grep21:25:191
531696280,5sleep0533477-21kthreadcore21:20:210
529291281,4sleep186188-21systemd-journal21:20:141
519639280,2sleep1222-21plymouthd21:10:591
513037280,1sleep20-21swapper/221:06:472
513037280,1sleep20-21swapper/221:06:462
493696280,2sleep20-21swapper/220:50:592
475379281,4sleep186188-21systemd-journal20:40:151
468275281,2sleep2171rcu_preempt20:33:282
456593281,4sleep2457397-21cut20:25:182
442403283,2sleep20-21swapper/220:10:512
436343280,2sleep20-21swapper/220:09:212
422551280,5sleep1422594-21ld19:55:211
403415280,2sleep0222-21plymouthd19:40:260
383936281,4sleep2384076-21ntpq19:25:202
378444280,2sleep0222-21plymouthd19:22:380
353699282,3sleep10-21swapper/119:05:191
840542270,4sleep1840547-21sh00:35:511
832736270,1sleep0222-21plymouthd00:30:520
824991271,3sleep1222-21plymouthd00:26:051
824991271,3sleep1222-21plymouthd00:26:051
824855271,3sleep0222-21plymouthd00:25:440
824855271,3sleep0222-21plymouthd00:25:430
801820270,1sleep0222-21plymouthd00:12:010
801363270,1sleep20-21swapper/200:10:502
788006270,4sleep2788168-21ssh00:05:162
777830270,4sleep0777836-21ssh23:55:450
764033270,3sleep0764074-21ssh23:50:120
753469271,3sleep1753613-21nfs4_client23:40:221
748022271,3sleep0748181-21latency_hist23:40:000
715172270,5sleep10-21swapper/123:15:371
700881270,1sleep00-21swapper/023:09:300
692755270,1sleep10-21swapper/123:03:331
685744271,3sleep0685779-21apt-get23:00:120
675315271,3sleep1675367-21ntpq22:50:221
663781271,3sleep2665219-21ssh22:45:182
663781271,3sleep2665219-21ssh22:45:182
660982270,1sleep00-21swapper/022:42:120
645484270,3sleep0222-21plymouthd22:32:360
636857271,3sleep0222-21plymouthd22:25:320
599730270,3sleep0599733-21apt-get22:05:150
582304271,3sleep0222-21plymouthd21:51:160
576152271,3sleep2576147-21apt-get21:50:142
573743271,3sleep0568321-21/usr/sbin/munin21:45:260
537037271,3sleep2537070-21apt-get21:25:122
527839270,4sleep0222-21plymouthd21:16:550
512445270,5sleep0512487-21proc_pri21:05:250
512445270,5sleep0512487-21proc_pri21:05:250
505926270,4sleep0505966-21ntpq21:00:240
505926270,4sleep0505966-21ntpq21:00:240
500722271,2sleep20-21swapper/221:00:142
500722271,2sleep20-21swapper/221:00:132
494275270,3sleep2222-21plymouthd20:55:092
493992271,3sleep1222-21plymouthd20:54:471
487372270,4sleep1222-21plymouthd20:46:421
486938271,3sleep2222-21plymouthd20:45:272
474671270,1sleep1171rcu_preempt20:38:361
449446271,3sleep00-21swapper/020:20:140
448951270,5sleep00-21swapper/020:17:500
441839271,3sleep0222-21plymouthd20:10:250
428938271,3sleep0428990-21ntpq20:00:220
410322271,3sleep0222-21plymouthd19:45:270
405972270,4sleep2406004-21kthreadcore19:45:162
391077270,1sleep00-21swapper/019:30:520
385305271,3sleep1385338-21apt-get19:30:131
381146270,4sleep0382924-21cut19:25:170
371956270,1sleep10-21swapper/119:17:061
356255270,3sleep0356289-21ntpq19:05:210
351164270,3sleep20-21swapper/219:05:122
834568260,3sleep0834719-21df00:35:140
818932261,2sleep20-21swapper/200:25:142
818932261,2sleep20-21swapper/200:25:142
803176260,1sleep10-21swapper/100:15:021
803176260,1sleep10-21swapper/100:15:021
802583260,1sleep10-21swapper/100:14:101
770509261,2sleep10-21swapper/123:52:091
763391260,4sleep0763397-21ssh23:49:020
762596260,1sleep10-21swapper/123:46:471
756178260,3sleep2756189-21ssh23:45:122
748372261,2sleep0748383-21apt-get23:40:130
747011261,3sleep2747017-21ssh23:37:072
746585260,1sleep10-21swapper/123:35:521
740095260,1sleep20-21swapper/223:34:422
730193261,2sleep10-21swapper/123:25:231
724926260,2sleep2724965-21apt-get23:25:122
717500260,3sleep286188-21systemd-journal23:20:192
685018261,2sleep0222-21plymouthd22:59:000
677916261,2sleep1677955-21apt-get22:55:121
676221260,1sleep00-21swapper/022:51:100
645176260,3sleep1645182-21ssh22:31:501
640964260,3sleep2642667-21grep22:30:192
620832261,2sleep10-21swapper/122:15:261
614257260,1sleep00-21swapper/022:12:570
607523261,2sleep10-21swapper/122:10:131
601153261,3sleep2602397-21ssh22:05:202
598255260,3sleep1598261-21ssh22:01:511
591793260,4sleep2249-21jbd2/sda2-822:00:082
585903260,3sleep2587520-21cut21:55:182
576112260,4sleep10-21swapper/121:50:131
567063260,1sleep00-21swapper/021:42:180
561012261,3sleep1560225-21sendmail-msp21:40:181
560470261,3sleep2560225-21sendmail-msp21:40:072
558806260,4sleep0558812-21ssh21:36:070
529268260,1sleep20-21swapper/221:20:112
520228260,4sleep00-21swapper/021:12:390
516023260,3sleep2517690-21cut21:10:202
500686261,2sleep1500719-21apt-get21:00:131
500686261,2sleep1500719-21apt-get21:00:121
500365261,2sleep10-21swapper/120:59:371
494268260,1sleep00-21swapper/020:55:030
487895260,3sleep0222-21plymouthd20:50:140
487468260,3sleep0222-21plymouthd20:47:570
480979260,3sleep0222-21plymouthd20:41:470
473899261,2sleep2222-21plymouthd20:35:242
448824260,1sleep10-21swapper/120:16:151
442988260,1sleep20-21swapper/220:15:042
430493261,2sleep00-21swapper/020:05:160
420395261,3sleep2422284-21kthreadcore19:55:182
416757260,3sleep0222-21plymouthd19:50:520
412038261,3sleep2412389-21kthreadcore19:50:182
404166260,3sleep2222-21plymouthd19:43:172
397490260,2sleep1222-21plymouthd19:35:331
391107260,3sleep2222-21plymouthd19:31:142
373541260,3sleep1222-21plymouthd19:20:181
786455250,2sleep0222-21plymouthd00:02:430
701365250,2sleep0701158-21appstreamcli23:10:020
693558250,2sleep2222-21plymouthd23:05:112
677958250,2sleep20-21swapper/222:55:132
591779250,2sleep0591538-21sendmail-msp22:00:060
521409250,2sleep10-21swapper/121:15:121
474520250,2sleep00-21swapper/020:36:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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