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2026-08-17 - 11:25
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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 Aug 17, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
360072223370,2sleep13600706-21kthreadcore23:20:171
3239537992825,1cyclictest0-21swapper/323:15:283
3239537992623,1cyclictest0-21swapper/321:25:013
3239537992623,1cyclictest0-21swapper/321:25:013
33179382250,4sleep0221rcuc/020:05:260
3239537992523,1cyclictest0-21swapper/323:20:143
3239537992522,1cyclictest0-21swapper/322:40:203
3239537992421,1cyclictest0-21swapper/323:40:003
3239537992320,1cyclictest0-21swapper/321:40:003
323953799231,17cyclictest3450672-21taskset21:45:033
3239537992220,1cyclictest0-21swapper/323:00:063
3239537992219,1cyclictest0-21swapper/321:40:223
3239537992219,1cyclictest0-21swapper/321:25:163
3239537992219,1cyclictest0-21swapper/320:20:203
3239537992218,1cyclictest0-21swapper/319:20:223
323953799221,17cyclictest3701194-21chrt00:25:143
323953799211,14cyclictest3331401-21turbostat20:20:013
37090512200,1sleep30-21swapper/300:30:153
3239537992018,1cyclictest0-21swapper/319:15:043
3239537992017,1cyclictest0-21swapper/323:45:203
3239537992017,1cyclictest0-21swapper/323:40:283
3239537992017,1cyclictest0-21swapper/322:18:163
3239537992017,1cyclictest0-21swapper/321:00:203
3239537992017,1cyclictest0-21swapper/321:00:003
3239537992017,1cyclictest0-21swapper/320:40:273
3239537992017,1cyclictest0-21swapper/319:40:193
3239537992017,1cyclictest0-21swapper/319:10:143
3239537992017,1cyclictest0-21swapper/300:10:003
3239537992017,1cyclictest0-21swapper/300:00:193
323953799201,14cyclictest3621550-21taskset23:32:303
323953799201,14cyclictest3395640-21sleep21:09:593
323953799199,7cyclictest33692292sleep320:45:273
3239537991916,1cyclictest0-21swapper/323:29:323
3239537991916,1cyclictest0-21swapper/322:53:283
3239537991916,1cyclictest0-21swapper/322:14:293
3239537991916,1cyclictest0-21swapper/322:00:213
3239537991916,1cyclictest0-21swapper/321:20:003
3239537991916,1cyclictest0-21swapper/320:28:293
3239537991916,1cyclictest0-21swapper/320:00:193
323953799191,14cyclictest3661246-21taskset23:59:073
323953799191,13cyclictest3646209-21taskset23:50:023
323953799191,13cyclictest3312458-21taskset20:05:023
323953799188,7cyclictest32734322sleep319:31:183
3239537991815,1cyclictest0-21swapper/323:13:163
3239537991815,1cyclictest0-21swapper/322:40:003
3239537991815,1cyclictest0-21swapper/300:20:193
323953799181,14cyclictest3459525-21taskset21:50:183
323953799181,13cyclictest3716807-21taskset00:35:043
323953799181,13cyclictest3690749-21taskset00:15:233
323953799181,13cyclictest3582038-21taskset23:06:233
323953799181,13cyclictest3488018-21taskset22:05:523
323953799181,13cyclictest3432568-21taskset21:30:253
323953799181,13cyclictest3402406-21taskset21:12:093
323953799181,13cyclictest3318819-21taskset20:10:023
323953799181,13cyclictest3299789-21taskset19:55:153
323953799181,13cyclictest3298963-21taskset19:50:293
323953799181,13cyclictest3279910-21taskset19:37:073
3239537991810,6cyclictest33702112sleep320:50:133
323953799180,14cyclictest3510824-21taskset22:20:253
323953799180,13cyclictest3513229-21taskset22:25:023
323953799172,11cyclictest3677586-21taskset00:10:143
3239537991714,1cyclictest0-21swapper/322:30:173
3239537991713,1cyclictest0-21swapper/319:25:213
3239537991713,1cyclictest0-21swapper/319:25:203
323953799171,13cyclictest3563130-21taskset22:55:213
323953799171,12cyclictest3473791-21taskset21:59:553
323953799171,12cyclictest3344709-21taskset20:30:153
34159652161,11sleep13411231-21sendmail-msp21:20:221
34159652161,11sleep13411231-21sendmail-msp21:20:211
32995592160,3sleep1321rcuc/119:55:011
323953799161,11cyclictest3549842-21chrt22:45:233
323953799161,11cyclictest3356737-21taskset20:35:513
323953799161,11cyclictest3287224-21chrt19:45:173
34912782150,8sleep23492792-21cut22:10:182
33381752151,5sleep2222-21plymouthd20:25:132
37153282140,11sleep13715332-21ssh00:31:371
36612832140,2sleep0471rcuog/223:59:130
36374162141,9sleep13637422-21ssh23:43:031
36229962141,4sleep13623197-21hddtemp_smartct23:35:161
36224392140,10sleep13622625-21wc23:35:011
33118812141,4sleep23305796-21sendmail-msp20:00:522
32865772141,10sleep23286654-21date19:45:002
32393522140,2sleep30-21swapper/319:09:223
34498692131,9sleep23449873-21ssh21:43:282
33561232131,8sleep13356162-21ntpq20:35:221
32609112130,7sleep13260912-21turbostat.cron19:24:551
37238792121,4sleep13723885-21ssh00:38:361
36998522121,8sleep23699858-21ssh00:22:122
36933142121,8sleep03692976-21sendmail-msp00:20:140
36448902120,9sleep23644896-21ssh23:46:562
36105902120,2sleep23610594-21kthreadcore23:25:222
33845002122,7sleep13385836-21cat21:00:211
33089762120,3sleep087-1kworker/0:1H+kblockd20:00:210
37086602110,2sleep03708742-21appstreamcli00:30:000
36609552110,8sleep13660963-21ssh23:58:151
36328002111,7sleep23630323-21sendmail-msp23:40:192
36139722110,8sleep13613978-21ssh23:28:151
36060332111,3sleep23606039-21ssh23:22:432
35818532110,8sleep23581857-21ssh23:05:552
35587092110,8sleep03558715-21ssh22:51:380
35580482110,8sleep23558299-21awk22:50:272
35218882110,8sleep23522612-21cut22:30:182
34823382110,4sleep23482043-21/usr/sbin/munin22:05:172
34585602113,4sleep23369591-21kworker/u16:0+nfsiod21:50:142
34194352111,3sleep13410552-21kworker/u16:4+rpciod21:25:141
33894882111,6sleep03389521-21apt-get21:05:130
33827742110,8sleep13382797-21latency_hist21:00:001
33407952116,2sleep00-21swapper/020:25:190
37073052100,3sleep13707311-21ssh00:26:171
36938012100,2sleep13694707-21ssh00:20:191
35916492101,7sleep20-21swapper/223:15:172
35655382100,7sleep03565572-21open_files22:55:260
35353602100,3sleep1222-21plymouthd22:36:481
35213562101,2sleep00-21swapper/022:30:160
34978182100,7sleep23497865-21ssh22:15:162
34340332100,3sleep23434037-21ssh21:33:062
33246202101,2sleep0222-21plymouthd20:11:050
33241072100,7sleep23324210-21mailstats20:10:272
33000642101,2sleep10-21swapper/119:55:171
32611952101,4sleep03261227-21apt-get19:25:150
32611952101,4sleep03261227-21apt-get19:25:140
32611912100,1sleep20-21swapper/219:25:132
32611912100,1sleep20-21swapper/219:25:122
32482982100,7sleep03248299-21http19:15:110
3723753290,2sleep0222-21plymouthd00:38:150
3702737293,3sleep03704392-21kthreadcore00:25:200
3676061290,6sleep03676067-21ssh00:06:440
3668754295,2sleep20-21swapper/200:03:092
3667981291,5sleep13667985-21ssh00:00:421
3622626291,5sleep23622707-21ssh23:35:012
3604694290,6sleep03604734-21/usr/sbin/munin23:20:250
3584048290,6sleep03584349-21irqcore23:10:180
3575264290,3sleep23575270-21ssh23:04:192
3565437291,5sleep23565477-21ntpq22:55:252
3540084290,6sleep13539887-21kthreadcore22:40:191
3504406290,2sleep1222-21plymouthd22:18:071
3497291296,1sleep00-21swapper/022:15:000
3450922291,6sleep13451019-21fschecks_time21:45:141
3441575290,2sleep10-21swapper/121:37:171
3434309290,1sleep00-21swapper/021:33:560
3416897291,5sleep03416940-21ntpq21:20:250
3416897291,5sleep03416940-21ntpq21:20:240
3407714290,6sleep13408744-21ssh21:15:201
3402526290,2sleep2222-21plymouthd21:12:292
3382662290,2sleep2222-21plymouthd20:58:332
3376258290,2sleep0222-21plymouthd20:53:370
3336905290,2sleep10-21swapper/120:20:241
3330424290,1sleep10-21swapper/120:15:221
3299103290,2sleep0222-21plymouthd19:52:090
3287044290,6sleep23287198-21gltestperf19:45:172
3286445290,2sleep0222-21plymouthd19:43:190
3274181290,6sleep13274267-21tune2fs19:35:141
3245857290,6sleep13246214-21sort19:15:001
3235165290,6sleep13236399-21kthreadcore19:05:181
3233575291,4sleep23233775-21smartctl19:05:162
3723886281,4sleep23723892-21ssh00:38:372
3716519281,4sleep23716551-21munin-run00:34:592
3669949280,5sleep23670131-21/usr/sbin/munin00:05:172
3647715280,4sleep03648595-21tr23:50:190
3646274280,2sleep13646280-21ssh23:50:131
3638017280,2sleep0222-21plymouthd23:44:460
3597827280,5sleep0222-21plymouthd23:16:590
3585087281,4sleep23586732-21/usr/sbin/munin23:10:202
3582908280,6sleep13582912-21ssh23:08:541
3582878281,1sleep00-21swapper/023:08:490
3565337280,1sleep10-21swapper/122:55:241
3558664280,2sleep1222-21plymouthd22:51:311
3544278281,4sleep03544335-21munin-run22:45:000
3535261280,6sleep23535268-21sh22:36:322
3519353281,5sleep13519356-21sh22:25:531
3513518280,5sleep23513637-21gltestperf22:25:182
3512837280,6sleep23512843-21ssh22:24:412
3512177282,3sleep1222-21plymouthd22:22:391
3495033281,5sleep10-21swapper/122:10:201
3467852281,4sleep13469445-21sed21:55:181
3464489280,6sleep13464495-21ssh21:50:411
3444297280,5sleep13445173-21kthreadcore21:40:181
3442136280,1sleep20-21swapper/221:38:542
3426818280,1sleep0222-21plymouthd21:29:460
3424013280,5sleep23424587-21missed_timers21:25:232
3395961281,3sleep03395985-21apt-get21:10:130
3395422280,2sleep2222-21plymouthd21:07:392
3383271280,6sleep23382835-21sendmail-msp21:00:182
3377108281,4sleep03378039-21irqstats20:55:190
3375398281,4sleep13375434-21ntpq20:50:231
3357344281,4sleep13357116-21sendmail-msp20:40:121
3354155280,5sleep23355893-21grep20:35:192
3324869281,4sleep10-21swapper/120:14:191
3318479280,5sleep2222-21plymouthd20:08:542
3292604280,2sleep1222-21plymouthd19:45:481
3280459280,5sleep13280193-21sendmail-msp19:40:141
3271206280,6sleep03272609-21/usr/sbin/munin19:30:200
3260918281,4sleep23260936-21idleruntime-cro19:25:002
3245774281,4sleep1222-21plymouthd19:13:571
3245568281,4sleep2222-21plymouthd19:11:172
3238418281,4sleep03238468-21ntpq19:05:210
3701167271,2sleep20-21swapper/200:25:142
3685411270,1sleep20-21swapper/200:15:122
3685380270,3sleep1222-21plymouthd00:15:071
3671444273,2sleep10-21swapper/100:05:201
3654572270,4sleep23655226-21sed23:55:182
3653345270,3sleep2222-21plymouthd23:53:592
3645424271,4sleep13645430-21ssh23:48:271
3638428271,3sleep03638465-21apt-get23:45:110
3622030270,4sleep23622036-21ssh23:33:502
3592867270,4sleep13593659-21cut23:15:201
3569420270,4sleep13570076-21cut23:00:211
3551844271,4sleep20-21swapper/222:49:192
3547429273,2sleep03549115-21tr22:45:210
3545018270,5sleep13545160-21irqcore22:45:181
3536418270,1sleep00-21swapper/022:39:510
3527718271,3sleep13527724-21ssh22:32:301
3519663271,1sleep0171rcu_preempt22:26:480
3505349270,4sleep00-21swapper/022:20:020
3489315270,1sleep10-21swapper/122:09:291
3480484270,1sleep20-21swapper/222:01:362
3480259270,1sleep00-21swapper/022:01:010
3479315271,3sleep10-21swapper/122:00:221
3465083270,5sleep03395620-21diskmemload21:52:230
3457642270,1sleep00-21swapper/021:48:270
3435029271,3sleep03435062-21apt-get21:35:110
3432485271,3sleep13432522-21ntpq21:30:241
3417525271,3sleep2222-21plymouthd21:20:352
3417525271,3sleep2222-21plymouthd21:20:342
3406070271,3sleep03407713-21cut21:15:190
3376285270,3sleep2222-21plymouthd20:54:012
3369771270,1sleep20-21swapper/220:48:102
3363792271,3sleep03363524-21apt-get20:45:050
3350621270,1sleep00-21swapper/020:34:420
3350350270,4sleep2222-21plymouthd20:31:152
3344558271,3sleep13344560-21apt-get20:30:141
3338139270,3sleep13338172-21apt-get20:25:121
3331117270,1sleep00-21swapper/020:16:490
3306062271,2sleep10-21swapper/120:00:151
3305425270,3sleep2222-21plymouthd19:56:002
3280088270,4sleep2222-21plymouthd19:39:282
3279332271,4sleep03279447-21python319:35:250
3273487270,3sleep1222-21plymouthd19:32:001
3273390270,3sleep2222-21plymouthd19:30:452
3267299270,1sleep10-21swapper/119:29:371
3267299270,1sleep10-21swapper/119:29:361
3260713270,1sleep00-21swapper/019:22:220
3685923260,3sleep0222-21plymouthd00:15:180
3684902260,3sleep13684908-21ssh00:14:291
3683859260,3sleep0222-21plymouthd00:11:320
3661935261,2sleep03661931-21apt-get00:00:130
3624242261,3sleep0222-21plymouthd23:35:200
3614926260,3sleep0222-21plymouthd23:30:110
3588826260,3sleep13588878-21ntpq23:10:231
3573433260,3sleep03573463-21ntpq23:00:280
3542794260,1sleep20-21swapper/222:40:442
3497654261,2sleep00-21swapper/022:15:140
3472489260,3sleep23472495-21ssh21:56:142
3472363260,3sleep0222-21plymouthd21:55:530
3450721260,2sleep23450758-21apt-get21:45:112
3403739260,2sleep20-21swapper/221:15:132
3403343260,2sleep1222-21plymouthd21:14:551
3389474261,2sleep10-21swapper/121:05:021
3388376260,3sleep03388418-21proc_pri21:00:270
3363835260,3sleep13363838-21apt-get20:45:131
3363499260,3sleep03363582-21appstreamcli20:45:010
3357340260,3sleep23357116-21sendmail-msp20:40:092
3357037261,2sleep00-21swapper/020:39:460
3337631260,3sleep2222-21plymouthd20:21:572
3337028260,4sleep03337078-21wc20:20:270
3328275261,3sleep23330159-21grep20:15:192
3312471261,2sleep10-21swapper/120:05:121
3292121261,2sleep0222-21plymouthd19:45:260
3253497260,3sleep23253540-21ntp_states19:15:212
3245696260,1sleep00-21swapper/019:12:560
3677579250,2sleep20-21swapper/200:10:142
3608161251,2sleep03608872-21kthreadcore23:25:210
3482026250,3sleep00-21swapper/022:05:110
3449236250,2sleep0222-21plymouthd21:41:420
3299906250,3sleep03300063-21if_err_eno219:55:160
3293193250,2sleep2222-21plymouthd19:50:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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