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2026-08-26 - 10:29
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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 Wed Aug 26, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
356109621210,2sleep03561097-21sh23:07:340
3217769992825,1cyclictest0-21swapper/321:20:203
3217769992320,1cyclictest0-21swapper/321:40:263
3217769992320,1cyclictest0-21swapper/300:00:213
3217769992219,1cyclictest0-21swapper/322:40:253
321776999215,13cyclictest3271192-21turbostat19:54:563
3217769992118,1cyclictest0-21swapper/323:45:143
3217769992118,1cyclictest0-21swapper/323:40:173
3217769992118,1cyclictest0-21swapper/323:20:543
3217769992118,1cyclictest0-21swapper/321:10:283
3217769992118,1cyclictest0-21swapper/319:15:003
3217769992118,1cyclictest0-21swapper/300:20:133
321776999211,14cyclictest3251944-21taskset19:34:553
3217769992017,1cyclictest0-21swapper/322:00:403
3217769992017,1cyclictest0-21swapper/321:20:013
3217769992017,1cyclictest0-21swapper/320:20:163
3217769992017,1cyclictest0-21swapper/319:40:183
321776999201,15cyclictest3489808-21taskset22:20:423
321776999201,14cyclictest3577669-21turbostat23:20:013
321776999201,14cyclictest3467861-21taskset22:09:563
35630952191,15sleep13563769-21cut23:10:161
3217769991916,1cyclictest0-21swapper/322:25:163
3217769991916,1cyclictest0-21swapper/320:05:223
3217769991916,1cyclictest0-21swapper/319:55:213
3217769991916,1cyclictest0-21swapper/300:30:003
321776999191,14cyclictest3529982-21taskset22:48:243
321776999191,13cyclictest3284190-21taskset20:00:023
321776999188,7cyclictest32452702sleep319:26:153
3217769991816,1cyclictest0-21swapper/321:00:013
3217769991815,1cyclictest0-21swapper/323:10:183
3217769991815,1cyclictest0-21swapper/322:50:193
3217769991815,1cyclictest0-21swapper/321:45:193
3217769991815,1cyclictest0-21swapper/321:10:013
3217769991815,1cyclictest0-21swapper/320:15:213
3217769991815,1cyclictest0-21swapper/319:35:233
321776999181,14cyclictest3398477-21taskset21:25:173
321776999181,13cyclictest3655313-21taskset00:07:113
321776999181,13cyclictest3607692-21taskset23:36:123
321776999181,13cyclictest3593730-21taskset23:30:063
321776999181,13cyclictest3591176-21taskset23:25:223
321776999181,13cyclictest3545149-21taskset22:56:543
321776999181,13cyclictest3330449-21taskset20:35:173
321776999181,13cyclictest3230718-21taskset19:15:203
321776999172,12cyclictest3639878-21taskset23:58:053
321776999172,12cyclictest3335436-21taskset20:40:033
321776999172,12cyclictest3328429-21taskset20:30:373
3217769991714,1cyclictest0-21swapper/323:00:133
3217769991714,1cyclictest0-21swapper/321:55:133
3217769991714,1cyclictest0-21swapper/320:45:183
3217769991714,1cyclictest0-21swapper/319:20:153
321776999171,13cyclictest3695325-21taskset00:34:383
321776999171,13cyclictest3663219-21taskset00:12:293
321776999171,13cyclictest3561441-21taskset23:08:343
321776999171,13cyclictest3507605-21taskset22:35:133
321776999171,13cyclictest3483286-21taskset22:19:253
321776999171,13cyclictest3475022-21taskset22:13:093
321776999171,13cyclictest3301463-21taskset20:10:203
321776999171,12cyclictest3701904-21taskset00:36:093
321776999171,12cyclictest3419007-21taskset21:35:283
321776999171,11cyclictest3405053-21sleep21:34:553
321776999170,13cyclictest3348060-21sleep20:54:553
35203962160,2sleep10-21swapper/122:40:211
34364092161,10sleep13436415-21ssh21:49:531
34187642161,2sleep20-21swapper/221:35:282
33098852161,2sleep10-21swapper/120:20:131
33022662160,8sleep23302313-21ntp_states20:10:242
3217769991614,0cyclictest0-21swapper/323:50:153
3217769991613,1cyclictest0-21swapper/321:50:183
321776999161,12cyclictest3506176-21taskset22:32:413
321776999161,12cyclictest3366961-21taskset21:01:043
321776999161,12cyclictest3316240-21taskset20:25:033
321776999161,12cyclictest3265079-21taskset19:45:033
321776999160,13cyclictest3664852-21taskset00:15:163
34382132140,11sleep13439106-21grep21:50:181
36811222130,10sleep13681700-21cut00:25:191
35701722131,3sleep0222-21plymouthd23:15:130
34829582131,9sleep13482964-21ssh22:18:281
33942482131,9sleep13394893-21memory21:20:221
35466472122,7sleep03546338-21sendmail-msp23:00:130
35201512121,4sleep03514867-21sendmail-msp22:40:200
33487042121,8sleep20-21swapper/220:50:212
36344802112,7sleep03635597-21kthreadcore23:55:180
35859172112,5sleep13585920-21apt-get23:25:131
35797332110,1sleep13579736-21cut23:20:171
34278802110,8sleep13427886-21ssh21:42:531
32582192111,3sleep2222-21plymouthd19:38:332
32115742111,6sleep23211576-21apt-get19:05:142
36722562100,2sleep23672262-21ssh00:20:102
36413602101,6sleep23640651-21sendmail-msp00:00:182
36237152100,7sleep13623721-21ssh23:46:501
35990552100,7sleep03599098-21ntpq23:30:250
35920052100,8sleep23592010-21sh23:26:022
35299342100,1sleep0221rcuc/022:48:180
34857542100,7sleep13487140-21kthreadcore22:20:171
34682662100,3sleep13468417-21df22:10:151
34024452100,7sleep23402699-21needreboot21:25:212
33247092100,8sleep13326458-21cut20:30:201
32967872100,3sleep1222-21plymouthd20:09:581
32509102100,7sleep23250990-21ntpq19:30:232
32329822102,4sleep13233004-21apt-get19:20:121
3702462290,6sleep03702468-21ssh00:37:440
3687993291,4sleep03687999-21ssh00:30:140
3672213290,6sleep03672219-21ssh00:20:040
3663277290,2sleep0222-21plymouthd00:12:390
3655742290,2sleep2222-21plymouthd00:08:192
3640423290,6sleep13640429-21ssh23:59:361
3633046291,4sleep23633085-21ssh23:55:132
3632343291,5sleep13632349-21ssh23:53:551
3623560290,1sleep2222-21plymouthd23:46:182
3593805291,4sleep2222-21plymouthd23:30:142
3552637293,4sleep2249-21jbd2/sda2-823:00:482
3514804291,5sleep03514967-21latency_hist22:40:010
3498945290,2sleep0222-21plymouthd22:29:220
3476070290,6sleep03476219-21df22:15:150
3406770290,6sleep23407844-21kthreadcore21:30:182
3405314296,1sleep00-21swapper/021:30:090
3399061291,5sleep03400648-21tail21:25:190
3389768291,5sleep23389907-21diskstats21:20:152
3375526290,6sleep03376932-21kthreadcore21:10:190
3341470290,2sleep1222-21plymouthd20:42:421
3328013291,6sleep03328105-21expr20:30:260
3290080291,5sleep23283977-21sendmail-msp20:00:542
3271043290,2sleep0222-21plymouthd19:48:280
3258061290,2sleep1222-21plymouthd19:36:311
3245836291,5sleep13245868-21apt-get19:30:141
3223848290,2sleep00-21swapper/019:12:090
3217631290,2sleep30-21swapper/319:09:563
3217407291,4sleep0222-21plymouthd19:07:000
3686465280,2sleep0222-21plymouthd00:26:420
3662553280,5sleep1222-21plymouthd00:10:391
3630511281,5sleep23630554-21ntpq23:50:232
3611821280,5sleep13613233-21tr23:40:201
3609395285,1sleep20-21swapper/223:40:082
3608461280,2sleep2222-21plymouthd23:38:212
3591228281,4sleep03591275-21ntpq23:25:240
3559677280,4sleep23559726-21ntpq23:05:212
3538673280,6sleep03538679-21ssh22:55:040
3536170281,4sleep03536210-21ntpq22:50:220
3523050281,4sleep23523053-21apt-get22:45:122
3455350281,4sleep23456758-21cut22:00:222
3450541281,4sleep1222-21plymouthd21:55:301
3443517280,1sleep00-21swapper/021:52:460
3426330280,5sleep03420737-21sendmail-msp21:40:230
3405832281,4sleep13406769-21irqstats21:30:181
3381870282,3sleep13381892-21apt-get21:15:141
3379337281,4sleep13379385-21ntpq21:10:241
3374091281,4sleep23374097-21ssh21:10:132
3372726281,4sleep03372766-21ntpq21:05:310
3369874281,4sleep13371630-21kthreadcore21:05:281
3361110284,2sleep00-21swapper/021:00:130
3329082281,4sleep20-21swapper/220:35:142
3315080281,4sleep03315122-21ntp_states20:20:250
3314989281,4sleep23315036-21ntpq20:20:232
3302352280,1sleep00-21swapper/020:10:260
3292081280,5sleep23293462-21kthreadcore20:05:182
3290677281,4sleep03290710-21apt-get20:05:120
3283037281,4sleep13283075-21ntp_states19:55:231
3271468281,4sleep13271624-21diskstats19:50:151
3270362281,4sleep23270477-21python319:45:272
3265495281,4sleep13265872-21cut19:45:171
3264506281,4sleep03258393-21sendmail-msp19:41:000
3260626280,5sleep13262008-21kthreadcore19:40:201
3244748281,4sleep23244870-21python319:25:262
3239472281,4sleep13239475-21apt-get19:25:131
3217303280,5sleep10-21swapper/119:05:411
3695513270,5sleep2222-21plymouthd00:35:022
3695454271,3sleep13695512-21munin-run00:35:011
3688156270,5sleep23688275-21grep00:30:172
3672288271,2sleep10-21swapper/100:20:131
3664622271,3sleep10-21swapper/100:15:151
3654785270,1sleep10-21swapper/100:05:451
3647602271,3sleep0222-21plymouthd00:02:360
3643152271,3sleep13644488-21kthreadcore00:00:211
3631372270,1sleep00-21swapper/023:51:140
3617000271,4sleep03617057-21923:45:000
3606817270,4sleep03606863-21ntpq23:35:210
3593770270,4sleep13593804-21awk23:30:141
3581100270,5sleep23582502-21kthreadcore23:20:192
3577345271,3sleep23577351-21ssh23:19:122
3576717270,5sleep11000-21snmpd23:17:271
3554494271,2sleep10-21swapper/123:05:121
3544861270,1sleep2222-21plymouthd22:56:112
3536828270,4sleep13536834-21ssh22:50:361
3530888271,2sleep20-21swapper/222:50:132
3513688270,1sleep1222-21plymouthd22:36:531
3506604271,3sleep1222-21plymouthd22:33:481
3506493270,5sleep00-21swapper/022:33:310
3491731271,2sleep10-21swapper/122:25:131
3490310271,3sleep2222-21plymouthd22:22:072
3485000273,2sleep00-21swapper/022:20:160
3466399270,4sleep10-21swapper/122:05:491
3465492271,4sleep23460379-21/usr/sbin/munin22:05:222
3457953270,4sleep13458077-21python322:00:291
3429946271,3sleep23430754-21kthreadcore21:45:182
3426471271,3sleep23426517-21ntpq21:40:252
3395776270,1sleep00-21swapper/021:20:540
3388446270,1sleep20-21swapper/221:17:282
3366950271,4sleep23360842-21sendmail-msp21:00:552
3366471271,3sleep13366586-21python321:00:261
3354685270,3sleep0222-21plymouthd20:55:120
3353484271,3sleep03353521-21ntpq20:50:260
3347276271,3sleep23347351-21python320:45:282
3341922271,3sleep03341955-21apt-get20:45:140
3341306271,3sleep23335219-21sendmail-msp20:40:392
3322138271,4sleep10-21swapper/120:26:311
3321324270,1sleep20-21swapper/220:25:352
3290404270,4sleep03290434-21munin-run20:05:010
3283629271,3sleep0222-21plymouthd19:56:180
3277815271,2sleep20-21swapper/219:55:122
3277181271,3sleep2222-21plymouthd19:50:322
3258289271,3sleep0222-21plymouthd19:39:260
3235699271,4sleep03237214-21cut19:20:190
3233597270,5sleep23232971-21/usr/sbin/munin19:20:162
3224473271,4sleep13224792-21diskstats19:15:031
3681701260,3sleep23683259-21ps00:25:192
3670426260,1sleep00-21swapper/000:15:470
3670382260,4sleep23670390-21ssh00:15:402
3662588260,1sleep23662590-21ssh00:10:442
3651509260,3sleep03653366-21kthreadcore00:05:200
3617313261,2sleep00-21swapper/023:45:110
3607680261,2sleep10-21swapper/123:36:111
3583447261,3sleep03577696-21sendmail-msp23:20:260
3568827260,4sleep20-21swapper/223:12:132
3562684260,3sleep03563093-21cut23:10:150
3546585261,2sleep10-21swapper/123:00:061
3538773261,2sleep10-21swapper/122:55:131
3526249260,4sleep13528000-21ssh22:45:191
3506700260,3sleep2976-21sshd22:34:102
3497602260,1sleep20-21swapper/222:25:352
3475991261,3sleep23475997-21ssh22:15:082
3468418260,1sleep20-21swapper/222:10:162
3468259260,2sleep00-21swapper/022:10:140
3467493260,1sleep00-21swapper/022:08:530
3451994260,1sleep00-21swapper/021:59:380
3451255260,3sleep23451261-21ssh21:57:372
3436983261,2sleep20-21swapper/221:50:152
3420453260,1sleep1222-21plymouthd21:39:281
3413207260,3sleep03413276-21ssh21:35:130
3397774260,3sleep1222-21plymouthd21:25:161
3384886261,3sleep03384969-21kthreadcore21:15:210
3354721261,2sleep10-21swapper/120:55:131
3353523260,3sleep13353564-21ntpq20:50:271
3346937261,2sleep10-21swapper/120:45:231
3335485261,2sleep0222-21plymouthd20:40:120
3334255260,3sleep03334302-21ntp_states20:35:240
3326460260,4sleep23327671-21memory20:30:212
3318124261,2sleep00-21swapper/020:25:340
3309337260,1sleep10-21swapper/120:17:081
3309212260,3sleep0222-21plymouthd20:15:350
3303841260,3sleep20-21swapper/220:15:162
3298460260,3sleep13299652-21cut20:10:191
3290337261,2sleep1976-21sshd20:04:101
3264792262,2sleep2222-21plymouthd19:44:382
3251805261,3sleep03251807-21sshd-session19:33:100
3244667262,2sleep00-21swapper/019:25:230
3226537261,2sleep00-21swapper/019:15:060
3224793260,3sleep23226039-21cut19:15:042
3223907260,1sleep20-21swapper/219:12:542
3217985260,2sleep10-21swapper/119:10:141
3695787250,2sleep1222-21plymouthd00:35:131
3521419250,2sleep2222-21plymouthd22:41:232
3507343250,2sleep2222-21plymouthd22:35:092
3452446250,3sleep00-21swapper/022:00:080
3428962250,2sleep00-21swapper/021:45:110
3372810250,3sleep20-21swapper/221:05:332
3360638250,2sleep2222-21plymouthd20:58:152
3329046251,2sleep13329079-21apt-get20:35:131
3277194250,2sleep0222-21plymouthd19:50:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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