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2026-04-13 - 20:02
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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
Characteristics of all highest latencies:
System rackeslot2.osadl.org (updated Mon Apr 13, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
60224521980,2sleep30-21swapper/309:16:043
87559321060,2sleep30-21swapper/312:20:023
435626992815,6cyclictest0-21swapper/010:10:010
43562699271,24cyclictest1996-21runrttasks09:50:000
43562699271,24cyclictest1996-21runrttasks09:50:000
435626992614,7cyclictest0-21swapper/010:45:020
435626992522,2cyclictest634702-21grep09:40:010
435627992415,1cyclictest191rcu_preempt10:05:581
435626992421,2cyclictest551090-21systemd-run08:40:000
435627992320,2cyclictest626820-21apt-key09:35:011
43562699231,3cyclictest822515-21munin-run11:45:010
435627992219,2cyclictest1290-21dbus-daemon12:35:011
435627992216,4cyclictest495309-21sort07:55:561
435626992219,2cyclictest1-21systemd08:55:000
435626992215,6cyclictest803874-21kthreadcore11:31:010
435627992118,2cyclictest1-21systemd09:40:001
435626992114,4cyclictest744340-21kthreadcore10:51:000
435626992113,7cyclictest0-21swapper/008:00:000
435626992112,4cyclictest694667-21latency_hist10:20:000
435626992111,6cyclictest0-21swapper/011:56:000
435626992111,5cyclictest0-21swapper/009:55:560
435626992110,6cyclictest0-21swapper/010:35:020
2649091210,2phc2sys0-21swapper/311:42:473
435627992017,2cyclictest551427-21/usr/sbin/munin08:40:011
435627992016,3cyclictest532315-21pool-packagekit08:25:011
435627992013,3cyclictest756590-21kthreadcore11:00:581
435627992011,2cyclictest351ktimers/112:00:001
435626992017,2cyclictest1-21systemd12:10:020
435626992013,6cyclictest770757-21cstates11:10:550
435626992010,5cyclictest0-21swapper/011:45:550
435627991913,5cyclictest681174-21grep10:10:581
435627991912,1cyclictest501rcuop/209:21:281
435627991910,4cyclictest0-21swapper/110:36:001
43562699199,5cyclictest0-21swapper/012:26:020
43562699199,5cyclictest0-21swapper/009:41:010
43562699199,5cyclictest0-21swapper/009:41:010
435626991916,2cyclictest831325-21grep11:50:570
435626991916,2cyclictest3880722-21gmain12:40:000
435626991915,2cyclictest442522-21systemd-run07:15:020
435626991913,5cyclictest469346-21latency_hist07:35:000
2649091190,2phc2sys0-21swapper/311:55:583
435628991815,1cyclictest0-21swapper/211:31:012
435628991815,1cyclictest0-21swapper/209:36:042
43562799189,1cyclictest501rcuop/212:29:591
435627991815,2cyclictest3827634-1atopacctd10:51:101
435627991815,2cyclictest1426-21gdbus08:50:001
435627991815,2cyclictest0-21swapper/109:15:561
435627991814,3cyclictest1326-21systemd-logind09:15:021
435627991811,3cyclictest1996-21runrttasks11:50:161
435627991810,3cyclictest0-21swapper/110:16:071
43562699188,5cyclictest0-21swapper/012:20:560
43562699188,5cyclictest0-21swapper/012:16:370
435626991815,2cyclictest557650-21systemd-run08:45:000
435626991812,5cyclictest698955-21kthreadcore10:20:590
435626991811,6cyclictest866048-21/usr/sbin/munin12:11:030
435628991714,1cyclictest0-21swapper/207:35:002
43562799179,2cyclictest191rcu_preempt11:24:201
43562799178,3cyclictest634906-21kworker/u16:3+nfsiod10:26:371
435627991715,1cyclictest830313-21latency_hist11:50:021
435627991714,2cyclictest435624-21cyclictest07:21:051
435627991714,2cyclictest3840882-21snmpd07:35:541
435627991714,2cyclictest1290-21dbus-daemon11:11:051
435627991714,2cyclictest0-21swapper/110:50:021
435627991713,3cyclictest3851702-21mta-sts-daemon09:26:341
435627991712,2cyclictest672162-21kworker/1:2+events_freezable10:34:481
435627991712,1cyclictest191rcu_preempt12:23:031
435627991710,3cyclictest780719-21kthreadcore11:15:591
435627991710,1cyclictest501rcuop/212:15:121
43562799170,13cyclictest635894-21grep09:40:561
43562799170,13cyclictest635894-21grep09:40:561
43562699179,5cyclictest476084-21tail07:40:530
43562699177,6cyclictest809305-21kthreadcore11:35:580
43562699176,6cyclictest0-21swapper/009:16:000
43562699171,9cyclictest762220-21turbostat11:05:010
435626991715,1cyclictest0-21swapper/011:15:510
435626991714,2cyclictest687061-21cron10:15:000
435626991714,2cyclictest653133-21kthreadcore09:51:000
435626991714,2cyclictest622636-21sed09:31:010
435626991714,2cyclictest532226-21apt-config08:25:000
435626991714,2cyclictest3851704-21mta-sts-daemon08:50:010
435626991714,2cyclictest1326-21systemd-logind09:10:010
43562699171,11cyclictest508448-21irqrtprio08:05:580
2649091171,2phc2sys0-21swapper/311:06:073
2649091171,2phc2sys0-21swapper/311:06:073
2649091171,2phc2sys0-21swapper/310:49:083
2649091170,3phc2sys0-21swapper/311:19:223
2649091170,2phc2sys0-21swapper/311:10:133
2649091170,2phc2sys0-21swapper/309:20:063
2649091170,2phc2sys0-21swapper/309:10:243
435628991614,1cyclictest0-21swapper/210:45:022
435628991614,1cyclictest0-21swapper/209:10:012
435628991614,1cyclictest0-21swapper/208:25:002
435628991613,1cyclictest0-21swapper/210:56:002
435628991613,1cyclictest0-21swapper/209:21:152
435628991613,1cyclictest0-21swapper/208:13:372
435628991612,2cyclictest0-21swapper/207:56:012
43562799167,3cyclictest501rcuop/207:13:571
43562799166,4cyclictest0-21swapper/111:35:521
43562799161,9cyclictest1-21systemd08:45:011
435627991614,1cyclictest423038-21kworker/u16:2-events_power_efficient07:45:531
435627991614,1cyclictest0-21swapper/111:35:011
43562799161,3cyclictest134050irq/121-eno110:20:571
435627991613,2cyclictest792856-21aten2.4-expect11:25:531
435627991611,2cyclictest3851703-21mta-sts-daemon12:37:541
435627991611,1cyclictest134050irq/121-eno109:59:451
435627991610,5cyclictest379577-21gmain07:42:291
435627991610,1cyclictest501rcuop/210:40:521
43562699169,4cyclictest1290-21dbus-daemon10:50:010
435626991614,1cyclictest611620-21turbostat09:25:000
435626991613,2cyclictest793357-21sh11:25:550
435626991613,2cyclictest749246-21kthreadcore10:56:000
435626991613,2cyclictest1-21systemd08:13:370
435626991612,3cyclictest532566-21kworker/u16:0+nfsiod09:12:130
435626991612,3cyclictest1290-21dbus-daemon09:00:020
435626991611,4cyclictest634906-21kworker/u16:3+nfsiod10:25:530
435626991610,2cyclictest525716-21turbostat08:20:000
435626991610,2cyclictest3851703-21mta-sts-daemon07:21:040
2649091160,4phc2sys0-21swapper/311:47:273
2649091160,2phc2sys0-21swapper/310:18:053
435628991512,1cyclictest0-21swapper/212:10:582
435628991512,1cyclictest0-21swapper/212:01:282
435628991512,1cyclictest0-21swapper/211:06:402
435628991512,1cyclictest0-21swapper/211:06:402
435628991512,1cyclictest0-21swapper/210:21:032
435628991512,1cyclictest0-21swapper/210:20:002
435628991512,1cyclictest0-21swapper/209:59:562
435628991512,1cyclictest0-21swapper/209:40:582
435628991512,1cyclictest0-21swapper/209:40:582
435628991512,1cyclictest0-21swapper/207:28:282
435628991512,1cyclictest0-21swapper/207:25:002
43562799159,5cyclictest3851705-21mta-sts-daemon08:05:131
43562799159,2cyclictest634906-21kworker/u16:3+xprtiod10:00:351
43562799158,1cyclictest501rcuop/209:50:421
435627991512,2cyclictest865326-21kthreadcore12:11:001
435627991512,2cyclictest856308-21kthreadcore12:05:581
435627991512,2cyclictest846750-21if_enp1s0.812:00:571
435627991512,2cyclictest818459-21kthreadcore11:41:011
435627991512,2cyclictest514667-21irqrtprio08:10:581
435627991512,2cyclictest465968-21kthreadcore07:30:581
435627991512,2cyclictest0-21swapper/109:05:011
435627991511,3cyclictest572951-21kthreadcore08:56:011
435627991511,1cyclictest494400-21kworker/1:0+events_freezable08:19:481
435627991510,4cyclictest3834332-21rtkit-daemon08:03:071
435627991510,4cyclictest379579-21GUsbEventThread07:52:431
435627991510,2cyclictest17350irq/127-ahci[0000:00:17.0]09:10:001
435627991510,1cyclictest601rcuop/310:55:561
435627991510,1cyclictest191rcu_preempt07:30:011
43562699157,4cyclictest491rcuog/209:26:010
43562699155,5cyclictest767141-21grep11:06:010
43562699155,5cyclictest767141-21grep11:06:010
43562699154,6cyclictest0-21swapper/012:02:380
43562699154,3cyclictest488160-21cut07:50:010
435626991512,2cyclictest472613-21kthreadcore07:36:000
435626991512,2cyclictest3851704-21mta-sts-daemon07:10:010
435626991512,2cyclictest0-21swapper/012:31:050
435626991511,3cyclictest723174-21timerwakeupswit10:36:070
435626991511,3cyclictest459291-21kthreadcore07:25:590
2649091150,2phc2sys0-21swapper/312:13:273
2649091150,2phc2sys0-21swapper/311:30:013
2649091150,1phc2sys0-21swapper/307:30:343
43562899149,1cyclictest0-21swapper/209:10:112
43562899141,9cyclictest0-21swapper/210:10:532
435628991412,1cyclictest0-21swapper/210:50:012
435628991411,1cyclictest0-21swapper/212:36:012
435628991411,1cyclictest0-21swapper/212:31:072
435628991411,1cyclictest0-21swapper/211:55:592
435628991411,1cyclictest0-21swapper/211:40:572
435628991411,1cyclictest0-21swapper/211:36:362
435628991411,1cyclictest0-21swapper/211:17:582
43562899141,11cyclictest0-21swapper/211:12:012
435628991411,1cyclictest0-21swapper/211:01:092
435628991411,1cyclictest0-21swapper/210:54:572
435628991411,1cyclictest0-21swapper/210:00:582
435628991411,1cyclictest0-21swapper/209:34:292
435628991411,1cyclictest0-21swapper/208:45:512
435628991411,1cyclictest0-21swapper/208:19:302
43562899140,11cyclictest8744972sleep212:17:212
43562799149,4cyclictest3851703-21mta-sts-daemon07:18:311
43562799149,1cyclictest191rcu_preempt11:05:131
43562799149,1cyclictest191rcu_preempt11:05:131
43562799148,2cyclictest564980-21if_enp1s008:50:581
43562799146,1cyclictest501rcuop/208:30:031
435627991411,2cyclictest1290-21dbus-daemon08:25:361
435627991411,2cyclictest0-21swapper/107:10:021
435627991410,3cyclictest647049-21kthreadcore09:46:011
435627991410,3cyclictest647049-21kthreadcore09:46:011
43562699149,4cyclictest0-21swapper/009:01:020
435626991411,2cyclictest786450-21irqrtprio11:20:560
435626991411,2cyclictest447483-21kthreadcore07:16:000
435626991410,3cyclictest541780-21kthreadcore08:31:020
435626991410,3cyclictest535273-21kthreadcore08:25:590
435626991410,3cyclictest504157-21kthreadcore08:01:000
43562699140,9cyclictest3851705-21mta-sts-daemon07:51:060
2649091141,6phc2sys0-21swapper/307:55:533
2649091140,3phc2sys0-21swapper/307:20:533
2649091140,2phc2sys0-21swapper/312:39:363
2649091140,2phc2sys0-21swapper/312:27:123
2649091140,2phc2sys0-21swapper/312:01:313
2649091140,2phc2sys0-21swapper/310:56:503
2649091140,2phc2sys0-21swapper/310:34:003
2649091140,1phc2sys0-21swapper/309:57:223
2649091140,1phc2sys0-21swapper/309:01:183
435628991311,1cyclictest0-21swapper/209:49:272
435628991311,1cyclictest0-21swapper/209:49:272
43562899131,10cyclictest0-21swapper/212:25:522
435628991310,1cyclictest0-21swapper/212:20:152
435628991310,1cyclictest0-21swapper/212:08:172
435628991310,1cyclictest0-21swapper/211:50:142
435628991310,1cyclictest0-21swapper/211:48:022
435628991310,1cyclictest0-21swapper/211:20:522
435628991310,1cyclictest0-21swapper/210:31:032
435628991310,1cyclictest0-21swapper/210:27:342
435628991310,1cyclictest0-21swapper/209:51:002
435628991310,1cyclictest0-21swapper/209:27:512
435628991310,1cyclictest0-21swapper/209:19:182
435628991310,1cyclictest0-21swapper/208:30:582
435628991310,1cyclictest0-21swapper/207:15:012
43562899130,11cyclictest0-21swapper/210:39:432
43562899130,10cyclictest4884912sleep207:50:522
43562699139,3cyclictest3834332-21rtkit-daemon10:00:250
2649091139,2phc2sys0-21swapper/310:21:243
2649091133,2phc2sys0-21swapper/307:35:593
2649091131,3phc2sys0-21swapper/311:50:533
2649091130,3phc2sys0-21swapper/312:34:373
2649091130,2phc2sys0-21swapper/312:23:473
2649091130,2phc2sys0-21swapper/309:54:213
2649091130,2phc2sys0-21swapper/308:18:223
2649091130,2phc2sys0-21swapper/308:12:333
2649091130,2phc2sys0-21swapper/307:52:143
6788772120,3sleep30-21swapper/310:07:473
43562899129,1cyclictest0-21swapper/211:26:062
43562899129,1cyclictest0-21swapper/208:35:582
43562899129,1cyclictest0-21swapper/208:25:592
43562899129,1cyclictest0-21swapper/208:06:002
43562899129,1cyclictest0-21swapper/207:40:542
43562899129,1cyclictest0-21swapper/207:38:182
43562899128,2cyclictest0-21swapper/208:53:332
43562899121,9cyclictest0-21swapper/208:00:522
435628991210,1cyclictest0-21swapper/210:05:042
435628991210,1cyclictest0-21swapper/209:00:582
435628991210,1cyclictest0-21swapper/208:56:012
2649091123,2phc2sys0-21swapper/308:31:013
2649091120,2phc2sys0-21swapper/311:39:273
2649091120,2phc2sys0-21swapper/311:03:583
2649091120,2phc2sys0-21swapper/309:39:543
2649091120,2phc2sys0-21swapper/308:24:273
2649091120,2phc2sys0-21swapper/307:13:173
43562899119,1cyclictest0-21swapper/207:16:002
43562899117,2cyclictest0-21swapper/207:45:592
2649091110,2phc2sys0-21swapper/310:12:453
2649091110,2phc2sys0-21swapper/308:51:043
2649091110,2phc2sys0-21swapper/308:07:233
2649091110,2phc2sys0-21swapper/307:46:043
2649091110,1phc2sys0-21swapper/308:46:273
2649091110,1phc2sys0-21swapper/308:26:123
6246882100,2sleep30-21swapper/309:31:033
43562899101,6cyclictest551588-21chrt08:40:082
2649091102,2phc2sys0-21swapper/312:06:563
2649091101,2phc2sys0-21swapper/310:40:113
2649091101,2phc2sys0-21swapper/309:40:103
2649091101,2phc2sys0-21swapper/309:40:103
2649091101,2phc2sys0-21swapper/308:00:553
2649091100,2phc2sys0-21swapper/311:30:533
2649091100,2phc2sys0-21swapper/311:24:553
2649091100,2phc2sys0-21swapper/310:53:133
2649091100,2phc2sys0-21swapper/310:35:543
2649091100,2phc2sys0-21swapper/310:26:203
2649091100,2phc2sys0-21swapper/310:00:073
2649091100,2phc2sys0-21swapper/309:46:593
2649091100,2phc2sys0-21swapper/309:46:593
2649091100,2phc2sys0-21swapper/307:15:033
264909191,2phc2sys0-21swapper/307:43:243
264909191,2phc2sys0-21swapper/307:05:533
264909190,2phc2sys0-21swapper/309:25:353
264909190,2phc2sys0-21swapper/309:05:313
264909190,2phc2sys0-21swapper/308:56:013
264909190,2phc2sys0-21swapper/308:40:583
264909190,2phc2sys0-21swapper/307:25:133
264909190,1phc2sys0-21swapper/308:37:023
429613250,3sleep20-21swapper/207:05:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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