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2026-04-02 - 13:57
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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 rack0slot2.osadl.org (updated Thu Apr 02, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24071126454,7sleep40-21swapper/407:00:294
241137995553,2cyclictest760194-21kworker/u16:3+events_unbound11:25:444
24056325544,8sleep60-21swapper/606:58:226
241137995351,2cyclictest798301-21kworker/u16:2+events_unbound11:38:084
241137995350,2cyclictest530074-21kworker/u16:0+events_unbound11:17:574
241140995250,2cyclictest920574-21kworker/u16:1+events_unbound12:28:085
24057325242,7sleep50-21swapper/506:58:295
241140995148,2cyclictest653136-21kworker/u16:2+flush-8:010:57:505
241140995047,2cyclictest598069-21kworker/u16:1+events_unbound11:02:505
241140995047,2cyclictest531798-21kworker/u16:3+flush-8:010:32:495
241137995047,2cyclictest772362-21kworker/u16:1+flush-8:011:28:054
241137995047,2cyclictest653136-21kworker/u16:2+events_unbound10:42:504
241140994947,2cyclictest817762-21kworker/u16:4+events_unbound11:57:515
241142994845,2cyclictest530074-21kworker/u16:0+flush-8:010:17:356
241137994846,2cyclictest760194-21kworker/u16:3+flush-8:011:32:504
241137994846,2cyclictest480854-21kworker/u16:2+events_unbound09:26:084
241140994745,2cyclictest530074-21kworker/u16:0+events_unbound10:43:085
241140994745,2cyclictest530074-21kworker/u16:0+events_unbound10:13:085
241137994745,2cyclictest598069-21kworker/u16:1+events_unbound10:23:374
241137994744,2cyclictest653136-21kworker/u16:2+flush-8:010:47:524
241140994644,2cyclictest835497-21kworker/u16:2+events_unbound12:25:165
241140994644,2cyclictest817762-21kworker/u16:4+flush-8:012:03:025
241140994643,2cyclictest835497-21kworker/u16:2+events_unbound12:07:475
24114699450,43cyclictest650-21systemd-journal09:02:357
241142994542,2cyclictest598069-21kworker/u16:1+flush-8:011:12:346
241140994543,2cyclictest760194-21kworker/u16:3+events_unbound11:24:005
241140994543,2cyclictest598069-21kworker/u16:1+events_unbound10:23:025
241137994543,2cyclictest772362-21kworker/u16:1+events_unbound11:53:054
241137994543,2cyclictest772362-21kworker/u16:1+events_unbound11:53:054
241137994543,2cyclictest480854-21kworker/u16:2+events_unbound09:57:364
241137994542,2cyclictest772362-21kworker/u16:1+events_unbound11:46:314
241146994439,4cyclictest519227-21latency_hist09:42:357
241142994441,3cyclictest817762-21kworker/u16:4+flush-8:012:18:016
241140994442,2cyclictest798301-21kworker/u16:2+events_unbound11:37:005
241140994442,2cyclictest784822-21kworker/u16:0+events_unbound11:54:085
241140994442,2cyclictest784822-21kworker/u16:0+events_unbound11:54:085
241140994442,2cyclictest653136-21kworker/u16:2+events_unbound11:14:325
241140994442,2cyclictest653136-21kworker/u16:2+events_unbound11:14:325
241137994442,2cyclictest495265-21kworker/u16:1+events_unbound09:56:374
241140994341,2cyclictest835497-21kworker/u16:2+events_unbound12:14:085
241140994341,2cyclictest480854-21kworker/u16:2+events_unbound09:53:575
241140994341,2cyclictest364068-21kworker/u16:0+events_unbound09:14:105
24114699420,40cyclictest266315-21sh07:27:367
241140994240,2cyclictest817762-21kworker/u16:4+events_unbound11:50:455
241140994240,2cyclictest772362-21kworker/u16:1+flush-8:011:37:595
241140994240,2cyclictest653136-21kworker/u16:2+events_unbound10:49:405
241140994240,2cyclictest530074-21kworker/u16:0+events_unbound11:20:255
241140994240,2cyclictest530074-21kworker/u16:0+events_unbound11:09:095
241137994240,2cyclictest835497-21kworker/u16:2+events_unbound12:21:124
241137994240,2cyclictest653136-21kworker/u16:2+events_unbound10:52:564
241137994240,2cyclictest598069-21kworker/u16:1+events_unbound10:33:064
241146994135,5cyclictest445865-21latency_hist09:12:357
241140994139,2cyclictest531798-21kworker/u16:3+events_unbound10:20:085
241140994139,2cyclictest530074-21kworker/u16:0+events_unbound10:31:365
241140994139,2cyclictest530074-21kworker/u16:0+events_unbound10:12:135
241140994139,2cyclictest480854-21kworker/u16:2+flush-8:010:02:355
241140994139,2cyclictest364068-21kworker/u16:0+events_unbound09:26:045
241140994139,2cyclictest364068-21kworker/u16:0+events_unbound09:06:495
241137994139,2cyclictest817762-21kworker/u16:4+events_unbound12:10:094
241137994139,2cyclictest653136-21kworker/u16:2+events_unbound10:59:174
241137994139,2cyclictest598069-21kworker/u16:1+events_unbound11:11:284
241137994139,2cyclictest530074-21kworker/u16:0+events_unbound10:20:454
241137994139,2cyclictest530074-21kworker/u16:0+events_unbound10:16:374
241142994038,2cyclictest530074-21kworker/u16:0+flush-8:009:52:346
241140994038,2cyclictest772362-21kworker/u16:1+events_unbound11:28:015
241140994038,2cyclictest364068-21kworker/u16:0+events_unbound09:29:005
241137994038,2cyclictest817762-21kworker/u16:4+events_unbound12:14:594
241137994038,2cyclictest784822-21kworker/u16:0+events_unbound12:29:404
241137994038,2cyclictest598069-21kworker/u16:1+events_unbound11:14:124
241137994038,2cyclictest598069-21kworker/u16:1+events_unbound11:14:124
241137994038,2cyclictest382018-21kworker/u16:3+events_unbound09:21:484
241137994038,2cyclictest364068-21kworker/u16:0+events_unbound09:29:374
241140993937,2cyclictest531798-21kworker/u16:3+events_unbound10:05:365
241140993936,2cyclictest653136-21kworker/u16:2+events_unbound10:52:405
241137993937,2cyclictest345290-21kworker/u16:2+events_unbound08:27:364
241142993836,2cyclictest480856-21kworker/u16:5+flush-8:009:30:056
241140993836,2cyclictest817762-21kworker/u16:4+events_unbound12:18:455
241140993836,2cyclictest530074-21kworker/u16:0+events_unbound10:40:535
241140993836,2cyclictest480854-21kworker/u16:2+events_unbound09:41:095
241140993836,2cyclictest364068-21kworker/u16:0+events_unbound09:21:405
241140993836,2cyclictest327304-21kworker/u16:3+events_unbound08:13:045
241140993835,2cyclictest480856-21kworker/u16:5+events_unbound09:32:375
241140993835,2cyclictest3773646-21kworker/u16:0+flush-8:007:37:355
241137993836,2cyclictest817762-21kworker/u16:4+events_unbound12:04:084
241137993836,2cyclictest653136-21kworker/u16:2+events_unbound10:39:254
241137993836,2cyclictest530074-21kworker/u16:0+events_unbound10:08:404
241137993836,2cyclictest495265-21kworker/u16:1+events_unbound09:40:124
241137993836,2cyclictest364068-21kworker/u16:0+events_unbound09:04:524
2317002381,30sleep70-21swapper/706:57:437
241142993734,2cyclictest287039-21kworker/u16:2+flush-8:007:57:356
241140993735,2cyclictest784822-21kworker/u16:0+events_unbound11:45:445
241140993735,2cyclictest530074-21kworker/u16:0+events_unbound09:52:315
241137993735,2cyclictest784822-21kworker/u16:0+events_unbound11:59:194
241137993735,2cyclictest784822-21kworker/u16:0+events_unbound11:50:254
241137993735,2cyclictest495265-21kworker/u16:1+events_unbound09:36:214
241137993735,2cyclictest480854-21kworker/u16:2+events_unbound09:49:134
241137993735,2cyclictest364068-21kworker/u16:0+flush-8:009:13:164
24114699360,34cyclictest6471-21gnome-software09:24:597
241137993634,2cyclictest531798-21kworker/u16:3+events_unbound10:29:214
241137993634,2cyclictest531798-21kworker/u16:3+events_unbound10:03:254
241137993634,2cyclictest480856-21kworker/u16:5+events_unbound09:45:054
241137993634,2cyclictest393092-21kworker/u16:4+events_unbound09:09:294
241137993633,2cyclictest598069-21kworker/u16:1+events_unbound11:02:404
241142993533,2cyclictest760194-21kworker/u16:3+flush-8:011:28:036
241140993533,2cyclictest3790728-21kworker/u16:1+flush-8:008:37:355
241140993533,2cyclictest3790728-21kworker/u16:1+flush-8:008:37:355
241146993428,5cyclictest392707-21latency_hist08:47:357
241140993431,2cyclictest3790728-21kworker/u16:1+flush-8:008:07:365
24114699330,31cyclictest832328-21sh11:48:037
241142993331,2cyclictest530074-21kworker/u16:0+flush-8:010:18:026
241140993331,2cyclictest393092-21kworker/u16:4+events_unbound09:09:135
241142993230,2cyclictest530074-21kworker/u16:0+events_unbound10:37:356
241140993230,2cyclictest495265-21kworker/u16:1+events_unbound09:47:125
241140993230,2cyclictest3790728-21kworker/u16:1+events_unbound08:11:345
241140993230,2cyclictest3790728-21kworker/u16:1+events_unbound07:11:255
241140993229,2cyclictest345290-21kworker/u16:2+events_unbound08:47:365
241137993230,2cyclictest327304-21kworker/u16:3+events_unbound08:13:494
24114699310,29cyclictest703064-21tune2fs10:57:497
241142993129,2cyclictest653136-21kworker/u16:2+flush-8:011:22:296
241140993128,2cyclictest3773646-21kworker/u16:0+events_unbound07:13:265
241137993129,2cyclictest784822-21kworker/u16:0+events_unbound12:25:054
241137993129,2cyclictest3790728-21kworker/u16:1+events_unbound08:23:494
241140993028,2cyclictest364068-21kworker/u16:0+events_unbound08:57:365
8697412290,1chrt869742-21sh12:03:467
7291272290,1chrt729128-21kthreadcore11:07:527
6752312290,0chrt675229-21ssh10:43:327
241146992924,4cyclictest458033-21latency_hist09:17:357
241146992923,5cyclictest543603-21latency_hist09:52:357
241146992921,1cyclictest96-21ksoftirqd/708:33:027
241146992921,1cyclictest96-21ksoftirqd/708:33:027
241142992927,2cyclictest530074-21kworker/u16:0+flush-8:010:12:306
241146992825,2cyclictest910067-21kthreadcore12:22:547
241146992825,2cyclictest630030-21fschecks_time10:27:497
241140992825,2cyclictest364068-21kworker/u16:0+events_unbound08:37:365
241142992725,2cyclictest653136-21kworker/u16:2+events_unbound10:37:496
241142992725,2cyclictest412293-21kworker/u16:1+flush-8:008:58:046
241142992725,2cyclictest345290-21kworker/u16:2+events_unbound08:53:496
241146992621,4cyclictest896162-21latency_hist12:17:357
241142992624,2cyclictest530074-21kworker/u16:0+events_unbound09:52:486
241142992624,2cyclictest364068-21kworker/u16:0+events_unbound08:37:576
241142992623,2cyclictest382018-21kworker/u16:3+flush-8:009:07:366
241146992520,4cyclictest568002-21latency_hist10:02:357
24114699250,24cyclictest265629-21cat07:22:357
241142992522,2cyclictest480854-21kworker/u16:2+events_unbound10:02:546
241146992422,1cyclictest653545-21ssh10:37:377
241146992417,1cyclictest897917-21kthreadcore12:17:517
241142992422,2cyclictest784822-21kworker/u16:0+events_unbound11:37:536
241142992422,2cyclictest653136-21kworker/u16:2+flush-8:011:02:306
241140992422,2cyclictest3790728-21kworker/u16:1+events_unbound07:39:295
241140992421,2cyclictest3790728-21kworker/u16:1+events_unbound07:04:255
241137992421,2cyclictest287039-21kworker/u16:2+events_unbound07:57:364
241137992421,2cyclictest287039-21kworker/u16:2+events_unbound07:55:254
6921342230,1chrt692135-21kthreadcore10:52:547
241146992321,1cyclictest0-21swapper/710:07:537
241137992321,2cyclictest364068-21kworker/u16:0+events_unbound08:39:374
241146992217,4cyclictest762609-21latency_hist11:22:357
241146992216,5cyclictest275832-21latency_hist07:32:357
241140992220,2cyclictest364068-21kworker/u16:0+events_unbound08:53:005
241140992220,2cyclictest287039-21kworker/u16:2+events_unbound07:58:055
241137992220,2cyclictest3790728-21kworker/u16:1+events_unbound07:40:534
241142992119,2cyclictest835497-21kworker/u16:2+flush-8:012:13:166
241142992119,2cyclictest364068-21kworker/u16:0+flush-8:009:22:506
241142992118,2cyclictest480854-21kworker/u16:2+events_unbound09:32:486
241140992119,2cyclictest327304-21kworker/u16:3+events_unbound08:19:455
241137992119,2cyclictest364068-21kworker/u16:0+events_unbound08:49:454
241137992119,2cyclictest287039-21kworker/u16:2+events_unbound07:51:564
241137992119,2cyclictest256143-21kworker/u16:2+events_unbound07:23:534
241140992018,2cyclictest3790728-21kworker/u16:1+flush-8:008:27:355
241140992018,2cyclictest3790728-21kworker/u16:1+events_unbound07:54:265
241140992018,2cyclictest3773646-21kworker/u16:0+events_unbound07:32:335
241137992017,2cyclictest3790728-21kworker/u16:1+events_unbound07:15:334
241146991915,3cyclictest932737-21cut12:32:347
241142991917,2cyclictest835497-21kworker/u16:2+flush-8:012:07:346
241140991917,2cyclictest345290-21kworker/u16:2+events_unbound08:47:325
241137991917,2cyclictest276235-21kworker/u16:3+events_unbound07:46:024
241146991817,0cyclictest0-21swapper/707:57:457
241142991816,2cyclictest920574-21kworker/u16:1+events_unbound12:28:046
241142991816,2cyclictest772362-21kworker/u16:1+flush-8:011:42:566
241142991816,2cyclictest3790728-21kworker/u16:1+flush-8:008:27:306
241137991816,2cyclictest3790728-21kworker/u16:1+events_unbound08:35:294
241137991816,2cyclictest3790728-21kworker/u16:1+events_unbound08:35:294
241146991712,4cyclictest847631-21latency_hist11:57:347
241146991712,4cyclictest847631-21latency_hist11:57:347
241146991711,5cyclictest507055-21latency_hist09:37:357
241142991715,2cyclictest480856-21kworker/u16:5+flush-8:009:37:556
241142991715,2cyclictest480854-21kworker/u16:2+events_unbound09:42:586
241142991714,2cyclictest296075-21kworker/u16:4+flush-8:008:02:566
241137991715,2cyclictest3790728-21kworker/u16:1+events_unbound07:21:334
241137991715,2cyclictest364068-21kworker/u16:0+events_unbound08:56:534
241146991615,0cyclictest0-21swapper/708:37:507
241146991615,0cyclictest0-21swapper/708:27:517
241146991611,4cyclictest494839-21latency_hist09:32:357
241142991614,2cyclictest772362-21kworker/u16:1+events_unbound11:37:356
241142991613,2cyclictest3773646-21kworker/u16:0+events_unbound07:27:506
241140991614,2cyclictest3790728-21kworker/u16:1+flush-8:008:32:305
241137991614,2cyclictest3790728-21kworker/u16:1+events_unbound08:19:534
241137991614,2cyclictest3790728-21kworker/u16:1+events_unbound07:30:304
241137991614,2cyclictest3790728-21kworker/u16:1+events_unbound07:10:404
241137991614,2cyclictest287039-21kworker/u16:2+events_unbound08:06:494
241137991613,2cyclictest3790728-21kworker/u16:1+flush-8:008:07:504
24114699158,6cyclictest0-21swapper/710:12:477
24114699157,7cyclictest0-21swapper/710:17:527
24114699157,7cyclictest0-21swapper/710:02:497
241146991514,0cyclictest0-21swapper/708:18:047
241146991512,2cyclictest0-21swapper/710:32:577
24114699150,13cyclictest1267-21snmpd09:42:407
241142991513,2cyclictest364068-21kworker/u16:0+events_unbound08:43:046
241140991512,2cyclictest3773646-21kworker/u16:0+events_unbound07:45:455
24114699149,4cyclictest812462-21cat11:42:497
24114699147,6cyclictest0-21swapper/711:28:067
24114699146,7cyclictest0-21swapper/712:12:297
241146991412,1cyclictest857920-21ssh11:59:207
241146991412,1cyclictest618841-21tr10:22:517
241146991412,1cyclictest431995-21ssh09:04:397
24114699140,13cyclictest1267-21snmpd11:33:077
24114699140,12cyclictest330552-21kthreadcore08:12:537
241142991413,1cyclictest0-21swapper/608:47:576
241137991412,2cyclictest412293-21kworker/u16:1+events_unbound09:00:474
241137991412,2cyclictest364068-21kworker/u16:0+events_unbound08:45:374
241137991411,2cyclictest3773646-21kworker/u16:0+events_unbound07:33:574
24114699139,3cyclictest1267-21snmpd07:35:397
24114699138,4cyclictest763899-21cat11:22:507
24114699136,6cyclictest6344-21gmain08:03:047
24114699136,6cyclictest0-21swapper/711:03:057
24114699136,6cyclictest0-21swapper/709:52:477
24114699136,6cyclictest0-21swapper/709:17:527
24114699135,7cyclictest0-21swapper/711:14:387
24114699135,7cyclictest0-21swapper/711:14:387
241146991311,1cyclictest678697-21fschecks_time10:47:497
24114699130,12cyclictest286853-21/usr/sbin/munin07:47:357
241142991312,1cyclictest0-21swapper/612:25:596
241142991312,1cyclictest0-21swapper/610:53:076
241142991311,2cyclictest817762-21kworker/u16:4+flush-8:011:57:346
241142991311,2cyclictest817762-21kworker/u16:4+flush-8:011:57:346
241142991311,2cyclictest653136-21kworker/u16:2+events_unbound11:02:486
241142991311,2cyclictest3790728-21kworker/u16:1+flush-8:007:37:556
241142991311,2cyclictest3790728-21kworker/u16:1+events_unbound08:12:496
24114299130,1cyclictest0-21swapper/609:16:576
241137991311,2cyclictest3773646-21kworker/u16:0+events_unbound07:05:044
24114699129,2cyclictest354478-21munin-run08:27:357
24114699128,3cyclictest1267-21snmpd08:54:597
24114699128,3cyclictest1267-21snmpd07:48:527
241146991211,0cyclictest0-21swapper/707:37:567
24114699120,4cyclictest803178-21kthreadcore11:37:547
24114699120,2cyclictest320490-21grep08:07:527
241142991211,1cyclictest0-21swapper/611:49:156
241142991211,1cyclictest0-21swapper/611:24:016
241142991211,1cyclictest0-21swapper/609:19:006
241142991210,2cyclictest835497-21kworker/u16:2+flush-8:012:08:416
241142991210,2cyclictest3790728-21kworker/u16:1+events_unbound07:07:386
24114299120,12cyclictest0-21swapper/610:25:326
24114299120,11cyclictest0-21swapper/607:02:576
24114099128,2cyclictest256143-21kworker/u16:2+events_unbound07:25:275
24114699118,2cyclictest1267-21snmpd07:54:467
24114699110,10cyclictest1267-21snmpd07:03:097
24114299117,3cyclictest355641-21cat08:27:496
241142991110,1cyclictest0-21swapper/612:01:236
24114299110,11cyclictest0-21swapper/608:19:066
241140991110,1cyclictest0-21swapper/507:20:225
24114099110,11cyclictest0-21swapper/507:52:135
24114699107,2cyclictest1267-21snmpd07:16:247
24114699105,4cyclictest96-21ksoftirqd/707:07:487
24114699100,9cyclictest401391-21ntpq08:47:597
24114299109,1cyclictest0-21swapper/610:30:066
24114299109,1cyclictest0-21swapper/609:04:026
24114299108,2cyclictest653136-21kworker/u16:2+flush-8:010:48:086
2411429998,1cyclictest0-21swapper/607:19:586
2411429997,2cyclictest480854-21kworker/u16:2+flush-8:009:58:006
2411429987,1cyclictest0-21swapper/608:34:336
2411429987,1cyclictest0-21swapper/608:34:336
2411429987,1cyclictest0-21swapper/607:17:086
2411429986,1cyclictest0-21swapper/608:07:536
2411429983,4cyclictest293448-21cut07:47:516
2411429976,1cyclictest0-21swapper/607:47:156
2411429975,2cyclictest530074-21kworker/u16:0+events_unbound10:43:046
2411429972,4cyclictest298235-21grep07:57:446
2411429960,5cyclictest5868-21gsd-color11:17:336
2411429960,5cyclictest5868-21gsd-color11:17:336
2411429954,1cyclictest0-21swapper/607:22:496
2411429950,4cyclictest276314-21taskset07:34:036
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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