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2026-09-04 - 11:40
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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 792 highest latencies:
System rackeslot8.osadl.org (updated Fri Sep 04, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
363569721040,2sleep20-21swapper/222:30:242
3348655992623,1cyclictest0-21swapper/319:20:203
3348655992522,1cyclictest0-21swapper/323:40:233
3348655992522,1cyclictest0-21swapper/320:45:013
3348655992421,1cyclictest0-21swapper/322:40:003
3348655992321,0cyclictest0-21swapper/321:50:213
3348655992320,1cyclictest0-21swapper/322:40:203
3348655992320,1cyclictest0-21swapper/322:20:143
3348655992320,1cyclictest0-21swapper/321:40:003
3348655992320,1cyclictest0-21swapper/321:00:213
3348655992311,8cyclictest3446922-21turbostat20:25:003
334865599231,16cyclictest3455439-21taskset20:30:173
3348655992219,1cyclictest0-21swapper/323:05:003
3348655992213,6cyclictest3669109-21turbostat22:55:013
3348655992119,1cyclictest0-21swapper/321:24:593
3348655992118,1cyclictest0-21swapper/321:40:113
3348655992112,7cyclictest3412741-21chrt19:55:213
334865599202,14cyclictest3389527-21chrt19:40:143
3348655992017,1cyclictest0-21swapper/322:30:003
3348655992017,1cyclictest0-21swapper/300:15:143
3348655992017,1cyclictest0-21swapper/300:00:253
334865599201,15cyclictest3583360-21taskset22:00:063
334865599192,14cyclictest3727627-21taskset23:30:223
3348655991916,1cyclictest0-21swapper/323:55:303
3348655991916,1cyclictest0-21swapper/323:21:083
3348655991916,1cyclictest0-21swapper/323:15:003
3348655991916,1cyclictest0-21swapper/321:30:003
334865599191,14cyclictest3762707-21taskset23:53:513
334865599191,14cyclictest3722599-21taskset23:26:023
334865599191,13cyclictest3606852-21taskset22:15:003
3348655991816,1cyclictest0-21swapper/321:30:233
3348655991816,1cyclictest0-21swapper/321:10:163
3348655991816,1cyclictest0-21swapper/320:07:553
3348655991816,1cyclictest0-21swapper/319:40:003
3348655991815,1cyclictest0-21swapper/323:36:293
3348655991815,1cyclictest0-21swapper/321:20:013
3348655991815,1cyclictest0-21swapper/320:40:013
3348655991815,1cyclictest0-21swapper/300:35:233
3348655991815,1cyclictest0-21swapper/300:30:063
3348655991815,1cyclictest0-21swapper/300:25:133
3348655991815,1cyclictest0-21swapper/300:20:123
3348655991815,1cyclictest0-21swapper/300:05:123
334865599181,13cyclictest3691393-21taskset23:06:293
334865599181,13cyclictest3659756-21taskset22:45:323
334865599181,13cyclictest3563026-21taskset21:45:183
334865599181,13cyclictest3498516-21chrt21:05:093
334865599181,13cyclictest3473350-21taskset20:45:163
334865599181,13cyclictest3452430-21taskset20:25:233
334865599181,13cyclictest3433855-21taskset20:12:213
334865599181,13cyclictest3433855-21taskset20:12:203
334865599181,13cyclictest3402044-21taskset19:49:563
334865599180,14cyclictest3491807-21turbostat21:00:013
36553302171,3sleep00-21swapper/022:45:180
35353042178,3sleep134-21ksoftirqd/121:28:011
3348655991715,1cyclictest0-21swapper/320:15:183
3348655991714,1cyclictest0-21swapper/322:55:533
3348655991714,1cyclictest0-21swapper/320:00:093
334865599171,13cyclictest3753809-21taskset23:45:473
334865599171,13cyclictest3637303-21taskset22:33:093
334865599171,12cyclictest3792188-21taskset00:10:203
334865599171,12cyclictest3700741-21taskset23:15:033
334865599171,12cyclictest3599178-21chrt22:10:163
334865599171,12cyclictest3598799-21taskset22:09:563
334865599171,12cyclictest3575460-21taskset21:55:053
334865599171,12cyclictest3357423-21chrt19:15:123
334865599168,6cyclictest33826912sleep319:33:413
3348655991614,1cyclictest0-21swapper/320:50:213
3348655991613,1cyclictest0-21swapper/319:50:123
3348655991613,1cyclictest0-21swapper/319:10:123
334865599161,12cyclictest3370274-21taskset19:25:023
38261582150,7sleep2222-21plymouthd00:35:132
37470802151,10sleep23747086-21ssh23:43:542
35142132141,3sleep13515656-21kthreadcore21:15:181
33484072140,2sleep30-21swapper/319:08:353
37100582139,2sleep13710955-21tr23:20:201
35730112130,9sleep13573059-21ntpq21:50:271
35495162135,5sleep244-21ksoftirqd/221:35:242
38174192120,9sleep13817424-21sh00:28:271
37660492122,4sleep2171rcu_preempt23:55:212
37022252120,9sleep23703687-21tr23:15:192
36527932120,9sleep03652799-21ssh22:42:570
36304552120,4sleep0222-21plymouthd22:30:150
33949822120,8sleep13389263-21sendmail-msp19:40:281
33783492121,8sleep23380079-21kthreadcore19:30:202
33767252121,9sleep00-21swapper/019:30:120
38090482110,8sleep23809054-21ssh00:21:472
37968512111,7sleep03798479-21tr00:15:180
37871882110,3sleep1222-21plymouthd00:10:151
37772432110,4sleep134-21ksoftirqd/100:00:371
37548832112,7sleep23681636-21kworker/u16:0+xprtiod23:48:512
37460862110,3sleep13746092-21ssh23:41:041
37376412110,8sleep23737767-21cat23:35:282
37305762110,4sleep23730582-21ssh23:31:422
36601372111,7sleep23660143-21ssh22:46:412
36241002110,8sleep13625009-21cat22:25:191
36069522112,5sleep13606947-21apt-get22:15:121
36051932110,4sleep03605199-21ssh22:10:580
35603622110,8sleep0222-21plymouthd21:45:150
35595492111,2sleep0222-21plymouthd21:45:000
35263012111,3sleep03526382-21find21:20:310
35199282111,3sleep0222-21plymouthd21:19:020
35129872110,8sleep23513188-21sed21:15:152
35044982110,1sleep20-21swapper/221:08:342
34165242111,7sleep23417298-21cut20:00:172
33424872111,4sleep10-21swapper/119:05:131
38244932100,8sleep23824499-21ssh00:31:252
37556502102,4sleep23755660-21apt-get23:50:162
37398892101,6sleep03739668-21sendmail-msp23:40:030
36999902100,3sleep23699996-21ssh23:13:382
36836082100,7sleep23683614-21ssh23:01:362
36620562100,7sleep23662382-21irqcore22:50:222
35865512100,7sleep03588023-21cut22:00:200
35738012101,6sleep23573807-21ssh21:51:042
35522212100,7sleep23551731-21sendmail-msp21:40:172
34377942101,2sleep0151ktimers/020:15:200
34147992100,1sleep00-21swapper/019:59:320
34074832102,2sleep1171rcu_preempt19:50:231
33697192101,7sleep086188-21systemd-journal19:21:140
33485172101,5sleep03348547-21munin-run19:10:010
3801213291,6sleep13801219-21ssh00:16:521
3787006291,4sleep23787012-21ssh00:10:122
3784406291,4sleep1222-21plymouthd00:05:211
3754875290,2sleep00-21swapper/023:48:480
3729535292,4sleep13729585-21ntpq23:30:261
3700159292,4sleep0222-21plymouthd23:14:130
3677318291,5sleep13677469-21df23:00:141
3677311290,6sleep03676988-21sendmail-msp23:00:130
3605457290,3sleep2222-21plymouthd22:11:492
3591315290,1sleep20-21swapper/222:05:102
3584508291,5sleep23585284-21grep22:00:182
3575474290,7sleep23575480-21ssh21:55:092
3575161292,4sleep0222-21plymouthd21:54:590
3550159290,1sleep00-21swapper/021:35:450
3527979290,7sleep20-21swapper/221:24:252
3490787291,5sleep13490836-21gcc20:55:221
3485122290,2sleep2222-21plymouthd20:51:412
3453238290,2sleep0222-21plymouthd20:29:310
3441175291,5sleep13440490-21sendmail-msp20:20:181
3376362291,4sleep0222-21plymouthd19:28:490
3369255290,6sleep13369343-21switchtime19:20:271
3818393281,4sleep13818388-21apt-get00:30:161
3809584280,1sleep0222-21plymouthd00:23:170
3802334281,4sleep13802526-21ssh00:20:021
3793680280,1sleep00-21swapper/000:12:470
3777678281,4sleep03777672-40updatedb.plocat00:01:520
3770953280,5sleep13771032-21sd-close00:00:011
3692517280,3sleep2222-21plymouthd23:09:422
3690242281,4sleep13690388-21ntpq23:05:201
3674661281,4sleep13674704-21ssh22:55:221
3667670280,1sleep00-21swapper/022:50:590
3667523281,4sleep13667525-21ssh22:50:361
3646063281,4sleep1222-21plymouthd22:40:141
3645504280,1sleep10-21swapper/122:39:261
3621653281,4sleep2222-21plymouthd22:23:072
3620193281,5sleep13614530-21sendmail-msp22:20:261
3613957280,2sleep23613961-21ssh22:18:332
3588024281,4sleep13583116-21sendmail-msp22:00:211
3558186285,1sleep10-21swapper/121:41:161
3537354280,5sleep23538089-21kthreadcore21:30:232
3492103281,3sleep10-21swapper/121:00:151
3485054280,1sleep10-21swapper/120:50:481
3478741280,5sleep2222-21plymouthd20:47:012
3472220284,1sleep00-21swapper/020:40:520
3439617280,2sleep20-21swapper/220:15:262
3428437281,4sleep23429372-21irqstats20:10:172
3428437281,4sleep23429372-21irqstats20:10:162
3421596280,2sleep00-21swapper/020:05:130
3421155280,2sleep00-21swapper/020:02:530
3414559280,5sleep2222-21plymouthd19:56:292
3395949281,4sleep13395971-21apt-get19:45:141
3389955280,4sleep23390265-21irqcore19:40:172
3388936280,5sleep2222-21plymouthd19:36:372
3387793281,5sleep03388204-21strings19:35:190
3354884280,2sleep2222-21plymouthd19:13:562
3348171280,3sleep2222-21plymouthd19:05:342
3832819270,5sleep13832825-21ssh00:37:381
3818351271,3sleep03818388-21apt-get00:30:150
3785407271,4sleep20-21swapper/200:06:312
3785391271,3sleep0222-21plymouthd00:06:280
3768506271,3sleep03768650-21ntpq23:55:220
3762065270,4sleep1222-21plymouthd23:52:071
3738851270,1sleep00-21swapper/023:37:510
3732050271,3sleep13731835-21appstreamcli23:35:031
3730689270,1sleep00-21swapper/023:32:010
3723117270,1sleep00-21swapper/023:27:320
3716530270,3sleep13716532-21ssh23:25:131
3714857271,3sleep086188-21systemd-journal23:21:150
3708586271,3sleep286188-21systemd-journal23:20:122
3706869274,1sleep0151ktimers/023:16:060
3698232271,3sleep13698272-21ntpq23:10:241
3669430270,4sleep03669495-21grep22:55:130
3669384270,5sleep23669391-21sort22:55:112
3654108270,5sleep13654298-21idleruntime22:45:151
3643630270,4sleep03643678-21ntp_states22:35:240
3630090270,1sleep00-21swapper/022:29:550
3625010272,3sleep23625789-21kthreadcore22:25:192
3598562271,3sleep0222-21plymouthd22:09:180
3581758270,1sleep13581764-21ssh21:56:231
3567169271,3sleep1222-21plymouthd21:49:171
3565207270,4sleep23565253-21ntpq21:45:222
3550459270,1sleep1222-21plymouthd21:36:391
3542804270,1sleep00-21swapper/021:32:090
3535575271,3sleep0222-21plymouthd21:28:520
3535457270,3sleep2222-21plymouthd21:28:302
3511567271,3sleep0222-21plymouthd21:12:290
3510575271,3sleep13510829-21ssh21:10:291
3503741271,4sleep13503769-21ntpq21:05:241
3494728271,3sleep03495895-21kthreadcore21:00:220
3491510270,4sleep2222-21plymouthd20:56:352
3485381271,4sleep03485385-21cron20:55:010
3472834271,3sleep03472627-21appstreamcli20:45:020
3469650270,4sleep23471276-21cut20:40:192
3465901270,3sleep2222-21plymouthd20:38:032
3463171270,4sleep03464908-21sed20:35:200
3458804271,4sleep03458842-21ntp_states20:30:220
3441901271,3sleep23442701-21kthreadcore20:20:192
3434737271,3sleep13435282-21irqcore20:15:171
3414831270,1sleep10-21swapper/119:59:571
3401965271,3sleep2222-21plymouthd19:48:562
3395414270,1sleep00-21swapper/019:41:480
3363817271,3sleep23363589-21sendmail-msp19:20:132
3357422270,3sleep2222-21plymouthd19:15:122
3832500260,1sleep00-21swapper/000:36:480
3816416262,1sleep00-21swapper/000:25:340
3814676260,3sleep23815598-21memory00:25:192
3794487260,4sleep23794749-21ssh00:15:012
3771692261,2sleep20-21swapper/200:00:182
3760897261,3sleep03760940-21ntpq23:50:260
3716448261,3sleep23716454-21ssh23:25:062
3700841260,3sleep13700992-21df23:15:141
3646528260,3sleep23647039-21irqrtprio22:40:192
3643483260,3sleep23643580-21ntpq22:35:222
3636448260,3sleep1222-21plymouthd22:30:441
3614814261,3sleep03614849-21apt-get22:20:120
3609678261,3sleep03611392-21grep22:15:190
3599129261,2sleep13599168-21apt-get22:10:151
3591558261,3sleep13591336-21/usr/sbin/munin22:05:171
3582755260,3sleep0222-21plymouthd21:59:110
3536404261,2sleep10-21swapper/121:30:181
3521967260,3sleep13522110-21kthreadcore21:20:191
3511425261,2sleep20-21swapper/221:12:062
3500790261,2sleep00-21swapper/021:05:190
3492104260,3sleep2222-21plymouthd21:00:152
3478755260,1sleep10-21swapper/120:47:121
3466331260,3sleep13466118-21sendmail-msp20:40:011
3459958261,2sleep10-21swapper/120:35:131
3454848260,3sleep23455438-21grep20:30:172
3454013261,2sleep10-21swapper/120:30:161
3453119260,1sleep10-21swapper/120:28:001
3452960260,2sleep2222-21plymouthd20:25:562
3446580260,1sleep00-21swapper/020:21:000
3432349260,3sleep13432972-21expr20:10:201
3432349260,3sleep13432972-21expr20:10:201
3427414260,3sleep1222-21plymouthd20:06:151
3408427260,3sleep2222-21plymouthd19:54:402
3408127260,1sleep00-21swapper/019:50:500
3401713260,1sleep00-21swapper/019:45:410
3389191260,3sleep1222-21plymouthd19:39:531
3382657260,1sleep10-21swapper/119:33:141
3371351261,2sleep20-21swapper/219:25:182
3370326260,2sleep10-21swapper/119:25:131
3363464260,2sleep1222-21plymouthd19:19:121
3355017260,3sleep03355286-21ntpq19:15:020
3350068260,3sleep03351052-21tr19:10:160
3749066251,2sleep10-21swapper/123:45:171
3691401250,2sleep0222-21plymouthd23:06:310
3485652251,1sleep00-21swapper/020:55:130
3433889250,2sleep0222-21plymouthd20:12:470
3433889250,2sleep0222-21plymouthd20:12:470
3427534250,3sleep20-21swapper/220:07:482
3421005251,2sleep10-21swapper/120:00:571
3351053250,2sleep13352822-21kthreadcore19:10:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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