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2026-08-31 - 01:48
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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 Sun Aug 30, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3277017993431,1cyclictest0-21swapper/310:00:223
3277017993027,1cyclictest0-21swapper/309:40:163
3277017992825,1cyclictest0-21swapper/310:45:013
3277017992824,1cyclictest0-21swapper/311:25:273
3277017992820,5cyclictest0-21swapper/310:30:133
3277017992725,1cyclictest0-21swapper/309:40:003
3277017992623,1cyclictest0-21swapper/312:20:323
3277017992623,1cyclictest0-21swapper/309:20:213
3277017992522,1cyclictest0-21swapper/311:40:183
3277017992522,1cyclictest0-21swapper/311:00:203
3277017992521,1cyclictest0-21swapper/312:01:063
360603922419,2sleep13603933-21kworker/u16:3-events_unbound11:00:151
3277017992421,1cyclictest0-21swapper/311:55:173
3277017992421,1cyclictest0-21swapper/308:40:503
3277017992421,1cyclictest0-21swapper/308:20:003
3277017992320,1cyclictest0-21swapper/311:20:073
3277017992320,1cyclictest0-21swapper/311:10:003
3277017992320,1cyclictest0-21swapper/310:20:113
3277017992320,1cyclictest0-21swapper/308:20:373
3277017992320,1cyclictest0-21swapper/307:40:213
3277017992320,1cyclictest0-21swapper/307:20:193
3277017992319,1cyclictest0-21swapper/312:35:003
3277017992219,1cyclictest0-21swapper/312:30:003
3277017992218,1cyclictest0-21swapper/309:20:013
327701799212,14cyclictest3761810-21taskset12:37:323
327701799212,14cyclictest3761810-21taskset12:37:313
3277017992118,1cyclictest0-21swapper/311:15:173
3277017992118,1cyclictest0-21swapper/309:30:143
3277017992118,1cyclictest0-21swapper/309:00:023
3277017992117,2cyclictest3605492-21turbostat11:00:003
3277017992111,8cyclictest3511179-21turbostat10:00:013
327701799211,15cyclictest3573232-21taskset10:37:433
34059782200,11sleep03406212-21cat08:45:190
327701799202,14cyclictest3330350-21taskset07:49:083
3277017992017,1cyclictest0-21swapper/310:05:123
3277017992017,1cyclictest0-21swapper/308:00:253
327701799201,14cyclictest3381890-21taskset08:30:013
3277017991917,1cyclictest0-21swapper/312:05:223
3277017991916,1cyclictest0-21swapper/311:35:123
327701799191,14cyclictest3729850-21taskset12:16:023
3277017991911,4cyclictest36582952chrt11:30:233
327701799191,14cyclictest3381302-21taskset08:25:443
327701799191,13cyclictest3394445-21taskset08:39:563
327701799191,13cyclictest3356335-21taskset08:10:023
327701799181,14cyclictest3333536-21chrt07:50:173
327701799181,13cyclictest3721853-21taskset12:10:333
327701799181,13cyclictest3691918-21taskset11:54:333
327701799181,13cyclictest3596199-21taskset10:51:033
327701799181,13cyclictest3582262-21taskset10:45:093
327701799181,13cyclictest3541288-21taskset10:16:263
327701799181,13cyclictest3495955-21taskset09:50:123
327701799181,13cyclictest3493700-21taskset09:45:323
327701799181,13cyclictest3462459-21taskset09:25:263
327701799181,13cyclictest3462459-21taskset09:25:263
327701799181,13cyclictest3434849-21taskset09:10:183
327701799181,13cyclictest3413534-21taskset08:53:433
327701799181,13cyclictest3407150-21taskset08:48:213
327701799181,13cyclictest3355947-21taskset08:08:163
327701799181,13cyclictest3310322-21taskset07:30:243
327701799181,13cyclictest3283084-21taskset07:11:353
35681872179,6sleep23569749-21kthreadcore10:35:182
327701799177,7cyclictest33173032sleep307:36:343
327701799172,11cyclictest3291891-21turbostat07:20:003
3277017991714,1cyclictest0-21swapper/311:10:223
3277017991714,1cyclictest0-21swapper/310:10:183
327701799171,13cyclictest3413897-21taskset08:55:043
327701799171,12cyclictest3556876-21taskset10:26:003
327701799170,13cyclictest3342453-21taskset07:55:253
34337942165,8sleep13434100-21cut09:10:171
3277017991613,1cyclictest0-21swapper/311:45:223
327701799161,12cyclictest3432886-21taskset09:08:153
327701799161,12cyclictest3298591-21taskset07:25:023
35717402152,4sleep13571792-21ntpq10:35:221
35817532141,1sleep00-21swapper/010:44:310
35483672141,2sleep20-21swapper/210:20:272
35413512130,4sleep13541357-21ssh10:16:371
34089492131,8sleep23410248-21kthreadcore08:50:182
33201922131,10sleep0872-21in:imuxsock07:40:200
32765582130,1sleep30-21swapper/307:05:403
32709022131,6sleep1222-21plymouthd07:05:131
37069482120,9sleep13706954-21ssh12:02:351
36058392128,2sleep20-21swapper/211:00:122
35974962120,1sleep00-21swapper/010:54:450
35886952121,2sleep03581868-21kworker/u16:2-events_power_efficient10:46:510
35475972120,2sleep0221rcuc/010:20:210
32970622121,8sleep13291925-21sendmail-msp07:20:211
32773632121,7sleep23277412-21/usr/sbin/munin07:10:152
37626942111,3sleep2672-21dbus-daemon12:40:012
37626942111,3sleep2672-21dbus-daemon12:40:002
37459182111,7sleep13745925-21ssh12:26:521
36998142115,3sleep2431ktimers/211:59:462
36898082110,8sleep03689854-21ntpq11:50:230
36582002110,8sleep13658244-21ssh11:30:221
36549642111,7sleep23656566-21kthreadcore11:30:192
35974832110,8sleep23597489-21ssh10:54:432
35653252110,8sleep23565331-21ssh10:32:392
35650062110,8sleep13565012-21ssh10:31:421
35610382110,8sleep03562662-21grep10:30:190
35368552111,7sleep23538430-21cut10:15:182
34406442115,3sleep23433409-21kworker/u16:4+xprtiod09:14:312
34330242110,8sleep03433287-21ssh09:10:010
34271092111,7sleep10-21swapper/109:05:161
34148652110,8sleep03415723-21cut08:55:170
33957062111,7sleep13394509-21sendmail-msp08:40:191
32980262111,7sleep03291925-21sendmail-msp07:21:090
37473922100,2sleep0222-21plymouthd12:30:110
36679292100,7sleep03667935-21ssh11:38:390
36007612100,3sleep23602415-21grep10:55:192
35819442100,1sleep10-21swapper/110:45:001
35767672100,3sleep2222-21plymouthd10:40:212
35443152101,2sleep10-21swapper/110:20:191
35129152100,6sleep23513448-21kthreadcore10:00:182
34954092100,3sleep2222-21plymouthd09:49:332
34582532100,7sleep23459833-21grep09:25:182
34582532100,7sleep23459833-21grep09:25:182
34473832100,3sleep1222-21plymouthd09:16:311
33693752101,6sleep23369544-21if_eno208:20:152
33434862101,7sleep20-21swapper/208:00:032
32830192100,2sleep0222-21plymouthd07:10:460
32765552100,2sleep00-21swapper/007:05:360
32722692100,6sleep23273429-21kthreadcore07:05:182
3744764291,4sleep03744801-21ntpq12:25:220
3739963290,6sleep23740295-21cut12:25:162
3737738290,1sleep10-21swapper/112:20:511
3715387290,2sleep13715393-21ssh12:09:241
3706647290,2sleep23706653-21ssh12:01:472
3700693290,6sleep03701237-21cut12:00:170
3684537291,4sleep23684574-21apt-get11:50:122
3678063290,6sleep03678942-21kthreadcore11:45:170
3665968292,4sleep13666087-21ntpq11:35:201
3636621290,6sleep10-21swapper/111:19:131
3628129292,4sleep2222-21plymouthd11:12:192
3583702292,1sleep2171rcu_preempt10:45:172
3550737290,2sleep0222-21plymouthd10:25:020
3533501290,2sleep2222-21plymouthd10:11:372
3510117290,2sleep1222-21plymouthd09:57:001
3503095290,3sleep2431ktimers/209:54:172
3469650290,6sleep03469836-21needreboot09:30:210
3463031290,1sleep00-21swapper/009:26:170
3463031290,1sleep00-21swapper/009:26:160
3432093291,5sleep03432133-21ntpq09:05:230
3420365290,1sleep10-21swapper/109:00:111
3400006291,5sleep03400030-21ntpq08:40:260
3387183291,4sleep13387209-21ntpq08:30:241
3387132292,4sleep03387176-21ntpq08:30:230
3367813291,5sleep03367859-21ntpq08:15:210
3362904291,5sleep23363018-21gltestperf08:15:142
3356004290,2sleep0222-21plymouthd08:09:030
3339669290,6sleep03341474-21kthreadcore07:55:190
3337541291,5sleep23338476-21irqstats07:55:172
3298621291,4sleep13298637-21apt-get07:25:141
3760601280,6sleep03433043-21diskmemload12:35:250
3760601280,6sleep03433043-21diskmemload12:35:250
3729091280,5sleep00-21swapper/012:15:240
3722087281,4sleep23722093-21ssh12:11:172
3718980281,5sleep03720680-21kthreadcore12:10:200
3666096280,5sleep23666128-21ssh11:35:222
3646552281,4sleep13647455-21grep11:25:181
3637228281,4sleep03637000-21sendmail-msp11:20:030
3634731280,5sleep23634781-21ntpq11:15:252
3634628282,3sleep0222-21plymouthd11:15:220
3628263281,5sleep03433043-21diskmemload11:12:490
3622911281,4sleep13623853-21grep11:10:181
3613881280,6sleep23613969-21fschecks_time11:05:142
3613726281,4sleep13613880-21df11:05:141
3557500282,3sleep2222-21plymouthd10:27:412
3525555280,1sleep00-21swapper/010:06:180
3517512285,2sleep03283532-21munin-node10:00:450
3488608281,4sleep03489135-21irqrtprio09:45:170
3481735280,5sleep03481758-21kthreadcore09:40:200
3477769281,4sleep03477808-21ntpq09:35:220
3476555281,4sleep13477571-21memory09:35:201
3454964280,6sleep1222-21plymouthd09:20:441
3424696281,4sleep23425503-21memory09:00:202
3413355280,1sleep00-21swapper/008:51:240
3390115280,5sleep23391802-21kthreadcore08:35:192
3348824281,4sleep03348857-21ntp_states08:00:250
3343536281,4sleep13343272-21sendmail-msp08:00:131
3335789281,4sleep13335858-21ntpq07:50:191
3324787281,4sleep13325711-21irqstats07:45:181
3316709280,5sleep23316760-21processes07:35:252
3762083270,4sleep13762090-21sh12:38:141
3762083270,4sleep13762090-21sh12:38:141
3737884270,1sleep00-21swapper/012:21:210
3731620271,3sleep23731661-21ssh12:20:122
3730891271,4sleep23730897-21ssh12:18:512
3722465270,1sleep10-21swapper/112:12:171
3715037270,1sleep0222-21plymouthd12:08:180
3708155271,2sleep23708158-21apt-get12:05:122
3698501271,3sleep0222-21plymouthd11:56:030
3690627270,4sleep13690635-21ssh11:51:071
3682783270,1sleep10-21swapper/111:46:021
3675198271,3sleep13675204-21ssh11:41:531
3674214271,3sleep23668475-21sendmail-msp11:40:262
3652429270,1sleep00-21swapper/011:29:290
3644636270,1sleep10-21swapper/111:24:331
3643217270,4sleep23643221-21ssh11:20:372
3599377271,3sleep13600760-21tr10:55:181
3588357270,1sleep10-21swapper/110:45:561
3566934271,3sleep03567497-21irqrtprio10:35:160
3553173271,3sleep13554640-21grep10:25:191
3527222270,4sleep13527229-21http10:10:131
3526738270,3sleep1222-21plymouthd10:09:311
3517515271,3sleep1222-21plymouthd10:00:451
3510323270,1sleep00-21swapper/009:57:440
3503753271,2sleep20-21swapper/209:55:132
3503167270,4sleep13503173-21ssh09:54:281
3494096271,3sleep1222-21plymouthd09:45:501
3486674270,5sleep23486680-21ssh09:41:462
3454907271,3sleep0222-21plymouthd09:20:360
3450407270,4sleep23451276-21grep09:20:212
3447792270,1sleep0222-21plymouthd09:17:420
3447546270,1sleep20-21swapper/209:16:562
3419802270,1sleep20-21swapper/208:57:042
3408017270,4sleep13408948-21irqstats08:50:171
3406971271,3sleep2222-21plymouthd08:46:062
3399918271,3sleep23399952-21ntpq08:40:242
3393610270,4sleep03393654-21ps08:35:260
3381939270,3sleep2222-21plymouthd08:30:132
3374996270,1sleep10-21swapper/108:21:461
3362426270,1sleep10-21swapper/108:14:491
3362241270,1sleep00-21swapper/008:12:270
3332092271,4sleep23333535-21kthreadcore07:50:172
3330379270,4sleep2222-21plymouthd07:49:282
3330337271,3sleep0222-21plymouthd07:48:580
3323830270,4sleep1222-21plymouthd07:42:221
3314263271,3sleep03316082-21kthreadcore07:35:190
3310842270,5sleep1222-21plymouthd07:30:481
3291569271,3sleep2222-21plymouthd07:16:252
3747441261,2sleep20-21swapper/212:30:142
3747399260,3sleep13747436-21ssh12:30:131
3728904261,3sleep13728986-21ntpq12:15:211
3692407261,2sleep13692402-21apt-get11:55:121
3683542261,3sleep2222-21plymouthd11:48:082
3671474260,3sleep0221rcuc/011:40:200
3651674261,2sleep20-21swapper/211:27:242
3613721261,2sleep00-21swapper/011:05:130
3607099260,4sleep03607286-21kthreadcore11:00:180
3603056260,4sleep03603172-21ntpq10:55:220
3596483260,1sleep10-21swapper/110:51:571
3535073261,1sleep00-21swapper/010:15:120
3530912260,3sleep03532251-21/usr/sbin/munin10:10:200
3525440260,3sleep2222-21plymouthd10:06:002
3498180261,3sleep00-21swapper/009:50:180
3480236260,4sleep13480242-21ssh09:40:041
3470694260,4sleep23470700-21ssh09:30:512
3470637260,3sleep10-21swapper/109:30:421
3462803260,3sleep1222-21plymouthd09:25:421
3462803260,3sleep1222-21plymouthd09:25:411
3426282261,3sleep03420108-21sendmail-msp09:00:540
3420036260,1sleep10-21swapper/108:59:551
3401175261,2sleep10-21swapper/108:45:131
3381295260,1sleep10-21swapper/108:25:401
3380755260,4sleep23380793-21ntp_states08:25:242
3375517260,1sleep00-21swapper/008:25:110
3369131260,4sleep0222-21plymouthd08:20:130
3362326260,2sleep2222-21plymouthd08:13:342
3355734260,2sleep1222-21plymouthd08:05:311
3342355260,3sleep13342384-21ld07:55:241
3336658260,3sleep0222-21plymouthd07:53:110
3323819260,3sleep23323821-21sshd-auth07:42:152
3316669260,3sleep13316707-21ntp_states07:35:241
3308016260,3sleep23309841-21kthreadcore07:30:212
3298603260,3sleep03298620-21basename07:25:130
3292060260,3sleep23291925-21sendmail-msp07:20:012
3291864261,3sleep13292058-21cat07:20:001
3283062260,3sleep1222-21plymouthd07:11:181
3653007250,2sleep00-21swapper/011:30:130
3479342250,2sleep2222-21plymouthd09:38:222
3426860250,2sleep2222-21plymouthd09:05:022
3389271251,2sleep10-21swapper/108:35:181
3367861251,2sleep13367903-21ntpq08:15:211
3355225250,2sleep20-21swapper/208:05:242
3310184250,1sleep00-21swapper/007:30:230
3299561250,2sleep20-21swapper/207:25:192
3288122250,2sleep03289950-21cut07:15:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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