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2026-07-23 - 10:12
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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 Thu Jul 23, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3274281993228,1cyclictest0-21swapper/322:40:143
3274281992421,1cyclictest0-21swapper/300:20:153
3274281992319,2cyclictest0-21swapper/320:35:143
327428199221,15cyclictest3347302-21sleep20:09:563
36010862211,9sleep23601090-21ssh23:05:072
3274281992119,1cyclictest0-21swapper/323:00:173
3274281992118,1cyclictest0-21swapper/322:50:213
3274281992118,1cyclictest0-21swapper/322:25:273
3274281992118,1cyclictest0-21swapper/322:00:163
3274281992118,1cyclictest0-21swapper/320:20:163
3274281992118,1cyclictest0-21swapper/320:00:243
327428199211,16cyclictest3327715-21taskset19:47:553
327428199211,14cyclictest3655794-21taskset23:39:553
327428199202,14cyclictest3423765-21taskset21:00:223
327428199202,14cyclictest3321430-21taskset19:44:293
3274281992018,0cyclictest0-21swapper/323:20:203
3274281992016,1cyclictest0-21swapper/319:20:133
327428199201,15cyclictest3547805-21taskset22:20:493
327428199201,14cyclictest3509894-21turbostat22:00:013
327428199201,14cyclictest3484080-21chrt21:40:243
3274281991917,1cyclictest0-21swapper/319:40:013
3274281991917,1cyclictest0-21swapper/319:40:003
3274281991916,1cyclictest0-21swapper/321:20:113
3274281991916,1cyclictest0-21swapper/321:14:103
3274281991916,1cyclictest0-21swapper/300:39:223
3274281991916,1cyclictest0-21swapper/300:15:153
3274281991916,1cyclictest0-21swapper/300:04:413
327428199191,14cyclictest3532272-21taskset22:11:223
327428199191,14cyclictest3523491-21chrt22:05:223
327428199191,14cyclictest3392637-21taskset20:40:103
327428199191,14cyclictest3334117-21taskset19:52:153
327428199191,14cyclictest3298375-21taskset19:25:173
327428199191,13cyclictest3687256-21taskset23:59:563
327428199191,13cyclictest3664108-21chrt23:45:123
327428199191,13cyclictest3411354-21taskset20:50:373
37009252181,5sleep03700966-21ntpq00:05:240
35163932181,10sleep23516399-21ssh22:00:482
327428199182,12cyclictest3359816-21taskset20:10:593
327428199182,12cyclictest3274452-21taskset19:10:093
3274281991815,1cyclictest0-21swapper/323:50:133
3274281991815,1cyclictest0-21swapper/322:36:223
3274281991815,1cyclictest0-21swapper/321:25:193
3274281991815,1cyclictest0-21swapper/320:55:173
3274281991815,1cyclictest0-21swapper/320:48:143
3274281991815,1cyclictest0-21swapper/320:15:223
3274281991815,1cyclictest0-21swapper/300:25:103
327428199181,13cyclictest3647839-21taskset23:34:353
327428199181,13cyclictest3501962-21taskset21:54:513
327428199181,13cyclictest3492627-21taskset21:45:493
327428199181,13cyclictest3439248-21taskset21:15:103
327428199178,7cyclictest33733422sleep320:25:033
3274281991714,1cyclictest0-21swapper/319:35:013
3274281991713,1cyclictest0-21swapper/323:40:183
327428199171,13cyclictest3606567-21chrt23:05:233
327428199171,13cyclictest3591663-21taskset22:56:413
327428199171,13cyclictest3576780-21taskset22:49:073
327428199171,12cyclictest3695610-21taskset00:05:093
327428199171,12cyclictest3535333-21taskset22:15:163
327428199170,14cyclictest3622987-21taskset23:16:023
327428199170,13cyclictest3472285-21chrt21:35:183
36763252160,5sleep03677083-21missed_timers23:50:200
36532272160,6sleep0151ktimers/023:35:200
327428199166,7cyclictest32889532sleep319:16:123
3274281991612,1cyclictest0-21swapper/323:25:133
3274281991612,1cyclictest0-21swapper/323:10:223
327428199161,12cyclictest3735073-21taskset00:30:513
327428199161,12cyclictest3703459-21taskset00:10:023
327428199161,12cyclictest3557519-21taskset22:30:153
327428199161,12cyclictest3468941-21taskset21:30:343
327428199161,12cyclictest3468941-21taskset21:30:333
327428199161,12cyclictest3424922-21taskset21:05:073
327428199161,11cyclictest3339896-21taskset19:55:243
327428199157,6cyclictest33856842sleep320:32:023
37440232141,2sleep20-21swapper/200:38:542
36656822140,6sleep03667256-21cut23:45:190
35333682141,9sleep23533374-21ssh22:14:272
36310512130,4sleep23631057-21ssh23:21:282
34181222130,6sleep03418316-21latency_hist21:00:010
32739112130,2sleep30-21swapper/319:07:073
36555222120,8sleep23655528-21ssh23:39:152
35601442120,9sleep03560146-21ssh22:36:500
35562612120,9sleep13556265-21ssh22:27:251
35333022121,8sleep0222-21plymouthd22:14:170
34849752121,8sleep13484981-21ssh21:41:271
33534372127,3sleep2431ktimers/220:06:382
33298892120,1sleep10-21swapper/119:50:161
33278772120,8sleep03327904-21/usr/sbin/munin19:50:000
37134922111,6sleep13713502-21sh00:20:111
36625142111,7sleep13662520-21ssh23:41:311
36170852111,7sleep13617188-21fschecks_time23:15:161
35690732110,8sleep23569079-21ssh22:44:302
35037452110,8sleep23504849-21cat21:55:202
34615052111,2sleep0222-21plymouthd21:26:580
33744772111,7sleep23375523-21cut20:25:182
33733902112,5sleep13373389-21apt-get20:25:131
33405732111,3sleep2222-21plymouthd19:57:412
32682382111,7sleep03268437-21hddtemp_smartct19:05:140
37264812101,5sleep23726524-21ntpq00:25:232
36931272100,7sleep23693147-21ntpq00:00:242
36701892100,1sleep20-21swapper/223:46:052
35997242100,7sleep13599731-21ssh23:02:021
35853252101,5sleep13585333-21ssh22:55:121
35417292100,1sleep00-21swapper/022:20:120
35414212100,7sleep21-21systemd22:20:012
35260992102,4sleep13526131-21apt-get22:10:131
34525242101,6sleep03452564-21ntpq21:20:250
34108692101,6sleep23410943-21find20:50:282
33920952100,1sleep00-21swapper/020:36:440
33786682100,3sleep03378701-21ntpq20:25:240
32749102100,6sleep13275774-21cut19:10:171
3734945290,3sleep23734951-21ssh00:30:312
3694603290,2sleep0222-21plymouthd00:03:070
3687139290,6sleep13687143-21ssh23:59:401
3647877290,2sleep13647883-21ssh23:34:411
3630395291,5sleep13630649-21grep23:20:311
3622218291,5sleep23622261-21ntp_states23:15:252
3616179291,6sleep20-21swapper/223:13:582
3597547291,4sleep23598392-21/usr/sbin/munin23:00:232
3579920291,6sleep23581604-21kthreadcore22:50:212
3557534290,6sleep13557540-21ssh22:30:191
3554943291,5sleep23554982-21ntpq22:25:232
3548029290,6sleep23548033-21ssh22:21:252
3517798290,7sleep13517804-21ssh22:04:481
3486267291,5sleep23486511-21sed21:45:002
3437738291,5sleep13437744-21ssh21:11:441
3436940291,5sleep03437060-21cat21:10:260
3430105292,3sleep23430142-21ntpq21:05:282
3395598291,5sleep03397125-21kthreadcore20:40:200
3393509291,5sleep23392411-21sendmail-msp20:40:182
3392675293,4sleep10-21swapper/120:40:121
3386189290,6sleep23386211-21acpi20:35:122
3385598290,2sleep1222-21plymouthd20:30:551
3368249294,3sleep1249-21jbd2/sda2-820:20:171
3360799290,6sleep23361256-21irqcore20:15:162
3296060292,4sleep13296057-21apt-get19:25:121
3288306290,7sleep23288346-21collect219:15:222
3275776290,6sleep23276775-21cut19:10:172
3268037290,4sleep10-21swapper/119:05:111
3743437281,4sleep13743443-21ssh00:37:151
3719816280,5sleep03719821-21sh00:21:390
3711776280,2sleep1222-21plymouthd00:16:201
3703625281,4sleep03703632-21sshd00:10:320
3702110282,3sleep1222-21plymouthd00:07:011
3654184281,4sleep13654190-21ssh23:35:341
3640933280,5sleep23641471-21sed23:30:182
3607420281,4sleep13607424-21ssh23:06:301
3602180280,5sleep03603129-21kthreadcore23:05:170
3584024280,2sleep13584030-21ssh22:52:241
3577063280,5sleep21-21systemd22:49:592
3547870280,2sleep13547876-21ssh22:21:001
3539237281,4sleep13539280-21ntpq22:15:231
3492570280,2sleep23492576-21ssh21:45:422
3489501280,6sleep03491251-21kthreadcore21:45:190
3484132281,4sleep03478421-21sendmail-msp21:40:250
3477248281,4sleep13477254-21ssh21:36:541
3468155281,3sleep03468273-21ntpq21:30:240
3468155281,3sleep03468273-21ntpq21:30:230
3465719281,4sleep23467455-21cut21:30:212
3465719281,4sleep23467455-21cut21:30:212
3444789281,4sleep03445014-21/usr/sbin/munin21:15:270
3430195281,4sleep03430234-21ntp_states21:05:300
3418604284,2sleep2249-21jbd2/sda2-821:00:142
3404945280,2sleep2222-21plymouthd20:45:392
3369131281,4sleep23366623-21sendmail-msp20:20:182
3359165281,4sleep13359202-21ntpq20:10:231
3341033280,6sleep1872-21in:imuxsock20:00:041
3321397280,2sleep2222-21plymouthd19:44:052
3308869280,4sleep0222-21plymouthd19:35:130
3308869280,4sleep0222-21plymouthd19:35:130
3308854280,2sleep2222-21plymouthd19:35:042
3308854280,2sleep2222-21plymouthd19:35:032
3294816281,4sleep13294853-21ntpq19:20:241
3290942280,5sleep03291766-21kthreadcore19:20:180
3273171281,3sleep20-21swapper/219:05:202
3735129271,4sleep13577833-21kworker/u16:0+nfsiod00:31:061
3727729270,1sleep10-21swapper/100:27:181
3727403270,1sleep00-21swapper/000:26:280
3713504270,4sleep23713568-21grep00:20:122
3710918271,3sleep03710961-21ntp_states00:15:210
3705034270,4sleep13705036-21ssh00:14:301
3704282270,4sleep23704288-21ssh00:12:232
3695293271,3sleep10-21swapper/100:05:001
3679362270,4sleep13679368-21ssh23:54:421
3679290270,4sleep23679296-21ssh23:54:312
3662597270,4sleep0222-21plymouthd23:41:460
3657555270,4sleep23655886-21sendmail-msp23:40:192
3648002271,3sleep03648062-21munin-run23:35:000
3637794271,3sleep03637912-21ntpq23:25:230
3632317270,4sleep03632323-21ssh23:24:580
3615005271,3sleep0222-21plymouthd23:10:420
3600471270,4sleep0222-21plymouthd23:04:100
3591434271,4sleep00-21swapper/022:55:590
3586316271,3sleep23587213-21cut22:55:172
3563176270,4sleep13564479-21ssh22:40:171
3555540271,3sleep0222-21plymouthd22:25:280
3524223270,1sleep00-21swapper/022:05:430
3517302270,4sleep0222-21plymouthd22:03:270
3508326270,1sleep10-21swapper/121:55:431
3500002270,4sleep23500176-21cat21:50:262
3494492271,3sleep03494524-21apt-get21:50:120
3477241270,1sleep0222-21plymouthd21:36:530
3455045271,3sleep23455082-21apt-get21:25:132
3454417271,3sleep1222-21plymouthd21:24:061
3447078271,4sleep23446851-21sendmail-msp21:20:032
3446343271,3sleep2222-21plymouthd21:18:512
3438222271,4sleep23283251-21kworker/u16:4+nfsiod21:13:052
3411686270,1sleep00-21swapper/020:54:550
3411575270,1sleep10-21swapper/120:53:271
3405199270,4sleep00-21swapper/020:48:580
3392349270,4sleep13392383-21/usr/sbin/munin20:40:001
3382337270,4sleep23384186-21grep20:30:202
3360025270,1sleep00-21swapper/020:13:430
3359204270,4sleep23359249-21ld20:10:242
3347540270,3sleep13347573-21apt-get20:05:131
3339926270,4sleep03340008-21/usr/sbin/munin19:55:250
3333360271,3sleep03333397-21ntpq19:50:210
3316250270,4sleep00-21swapper/019:40:180
3314831270,1sleep10-21swapper/119:37:471
3314831270,1sleep10-21swapper/119:37:461
3308304270,1sleep00-21swapper/019:31:170
3308301270,3sleep2222-21plymouthd19:31:152
3308295270,1sleep10-21swapper/119:31:101
3301325270,5sleep03301354-21gcc19:25:230
3289542271,3sleep2222-21plymouthd19:20:122
3734311261,3sleep03734354-21ntpq00:30:220
3706684261,2sleep20-21swapper/200:15:162
3695632260,3sleep23695671-21apt-get00:05:142
3679822261,2sleep00-21swapper/023:55:140
3635369260,3sleep23637074-21grep23:25:202
3634101261,2sleep10-21swapper/123:25:191
3618186260,3sleep03619058-21cut23:15:190
3615144261,3sleep1222-21plymouthd23:11:041
3577440260,2sleep00-21swapper/022:50:150
3575932261,3sleep03575937-21diskmemload22:46:530
3574668261,2sleep10-21swapper/122:45:211
3562563261,3sleep03563175-21cut22:40:160
3560459261,1sleep20-21swapper/222:37:452
3560400260,4sleep13560408-21ssh22:37:361
3557491260,4sleep2222-21plymouthd22:30:112
3525292260,1sleep10-21swapper/122:08:421
3524957260,1sleep20-21swapper/222:07:472
3502333260,3sleep03502370-21ssh21:55:140
3495453260,3sleep13496306-21kthreadcore21:50:171
3486593260,3sleep1222-21plymouthd21:45:121
3477075261,3sleep23477082-21ssh21:36:262
3462907260,3sleep13462616-21apt-get21:30:041
3462907260,3sleep13462616-21apt-get21:30:041
3455250261,3sleep13455371-21perl21:25:151
3445139260,4sleep13445145-21ssh21:15:331
3424936261,2sleep1222-21plymouthd21:05:191
3423806261,3sleep03418183-21sendmail-msp21:00:240
3417828260,2sleep1222-21plymouthd20:56:131
3412859260,3sleep23413678-21grep20:55:182
3399594260,3sleep13400434-21irqrtprio20:45:151
3385756260,1sleep00-21swapper/020:32:540
3372919260,1sleep00-21swapper/020:23:210
3366303260,3sleep0222-21plymouthd20:16:420
3347033260,3sleep2222-21plymouthd20:02:012
3343333260,3sleep03344776-21grep20:00:200
3340432261,2sleep10-21swapper/119:55:511
3333869260,2sleep2222-21plymouthd19:50:262
3327703260,1sleep10-21swapper/119:47:451
3321256260,1sleep10-21swapper/119:42:151
3301845260,2sleep2222-21plymouthd19:25:372
3280958260,3sleep13282274-21kthreadcore19:15:011
3280623260,3sleep0222-21plymouthd19:14:450
3737588250,3sleep03738340-21/usr/sbin/munin00:35:180
3679911250,2sleep20-21swapper/223:55:162
3669388250,2sleep10-21swapper/123:45:241
3557736250,2sleep0222-21plymouthd22:30:500
3533894251,2sleep00-21swapper/022:15:090
3424323250,2sleep1222-21plymouthd21:00:411
3366262250,2sleep1222-21plymouthd20:16:111
3347532250,3sleep00-21swapper/020:05:080
3321739250,3sleep2222-21plymouthd19:45:102
3283067250,2sleep00-21swapper/019:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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