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2026-04-10 - 01:38
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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 Fri Apr 10, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2360642940,1sleep60-21swapper/623:44:456
380137325847,7sleep60-21swapper/618:59:346
380132425241,8sleep40-21swapper/418:58:514
380143025040,7sleep50-21swapper/519:00:215
3801830994443,0cyclictest0-21swapper/722:16:407
3801830994237,4cyclictest81054-21latency_hist22:42:047
380183099410,39cyclictest3996384-21latency_hist20:42:057
3801825994139,2cyclictest4015651-21kworker/u16:4+events_unbound21:12:385
3801825994139,2cyclictest248319-21kworker/u16:0+events_unbound23:56:155
3801825994038,2cyclictest4140548-21kworker/u16:0+events_unbound22:01:325
3801825994038,2cyclictest4094979-21kworker/u16:4+events_unbound21:30:395
3801825994038,2cyclictest4094979-21kworker/u16:4+events_unbound21:30:395
3801825994038,2cyclictest4015651-21kworker/u16:4+events_unbound21:10:215
3801825994038,2cyclictest295958-21kworker/u16:2+events_unbound00:15:245
3801825994038,2cyclictest248319-21kworker/u16:0+events_unbound00:05:555
3801825993937,2cyclictest94845-21kworker/u16:4+events_unbound22:55:515
3801825993937,2cyclictest79533-21kworker/u16:1+flush-8:000:07:385
3801825993937,2cyclictest79533-21kworker/u16:1+flush-8:000:07:385
3801825993937,2cyclictest4153579-21kworker/u16:1+events_unbound21:51:515
3801825993937,2cyclictest4091626-21kworker/u16:0+events_unbound21:25:365
3801825993937,2cyclictest33096-21kworker/u16:5+events_unbound22:28:405
3801825993937,2cyclictest307742-21kworker/u16:4+events_unbound00:29:245
3801825993937,2cyclictest201746-21kworker/u16:5+events_unbound23:42:085
3801825993937,2cyclictest127676-21kworker/u16:0+events_unbound23:04:235
3801825993937,2cyclictest115088-21kworker/u16:2+events_unbound23:11:125
37928402393,30sleep70-21swapper/718:57:187
3801825993836,2cyclictest79533-21kworker/u16:1+events_unbound23:49:365
3801825993836,2cyclictest4078897-21kworker/u16:3+events_unbound21:53:005
3801825993836,2cyclictest4015651-21kworker/u16:4+flush-8:021:02:315
3801825993836,2cyclictest295958-21kworker/u16:2+events_unbound00:18:225
3801825993836,2cyclictest115088-21kworker/u16:2+events_unbound23:26:525
3801830993736,0cyclictest0-21swapper/723:31:107
3801830993736,0cyclictest0-21swapper/723:31:107
3801830993736,0cyclictest0-21swapper/721:17:597
3801830993735,1cyclictest4034678-21diskmemload22:25:307
3801830993733,3cyclictest343649-21sh00:29:107
3801825993735,2cyclictest4140548-21kworker/u16:0+events_unbound22:25:075
3801825993735,2cyclictest4078897-21kworker/u16:3+events_unbound22:03:275
3801825993735,2cyclictest201696-21kworker/u16:4+events_unbound23:36:365
3801825993735,2cyclictest115088-21kworker/u16:2+events_unbound23:16:485
3801825993734,2cyclictest3792087-21kworker/u16:1+events_unbound19:27:085
3801830993635,0cyclictest0-21swapper/721:56:447
3801825993634,2cyclictest4167034-21kworker/u16:2+events_unbound22:16:075
3801825993634,2cyclictest4140548-21kworker/u16:0+events_unbound22:41:245
3801825993634,2cyclictest271034-21kworker/u16:3+events_unbound00:26:485
3801825993634,2cyclictest19114-21kworker/u16:3+events_unbound22:20:155
3801825993634,2cyclictest189759-21kworker/u16:3+events_unbound23:30:355
3801825993634,2cyclictest189759-21kworker/u16:3+events_unbound23:30:355
3801825993633,2cyclictest3928545-21kworker/u16:2+events_unbound21:17:515
3801825993533,2cyclictest271076-21kworker/u16:4+events_unbound23:59:365
3801822993533,2cyclictest115088-21kworker/u16:2+flush-8:023:17:054
3801825993433,1cyclictest4116173-21kworker/u16:0+events_unbound21:34:105
3801825993432,2cyclictest81443-21kworker/u16:2+events_unbound22:47:065
3801825993432,2cyclictest81443-21kworker/u16:2+events_unbound22:47:065
3801825993432,2cyclictest4140548-21kworker/u16:0+flush-8:022:32:295
3801825993432,2cyclictest4078897-21kworker/u16:3+events_unbound21:46:075
3801825993432,2cyclictest127676-21kworker/u16:0+events_unbound23:01:415
3801830993331,1cyclictest4034678-21diskmemload00:20:587
3801825993331,2cyclictest6758-21kworker/u16:1+events_unbound22:12:015
3801825993331,2cyclictest6758-21kworker/u16:1+events_unbound22:12:015
3801825993331,2cyclictest4140548-21kworker/u16:0+events_unbound22:46:195
3801825993331,2cyclictest3928545-21kworker/u16:2+events_unbound21:37:065
3801825993331,2cyclictest201696-21kworker/u16:4+events_unbound23:38:005
94232320,0chrt9422-21cat22:12:057
3801830993232,0cyclictest0-21swapper/721:41:287
3801830993231,0cyclictest0-21swapper/722:17:597
3801830993227,4cyclictest129221-21latency_hist23:02:057
3801825993230,2cyclictest3996769-21kworker/u16:0+events_unbound20:50:205
3801830993131,0cyclictest0-21swapper/723:21:457
3801830993131,0cyclictest0-21swapper/721:36:257
3801830993129,1cyclictest139427-21ssh23:03:387
3801830993128,2cyclictest124-21kswapd000:02:287
3801829993128,2cyclictest3928545-21kworker/u16:2+events_unbound21:17:206
3801825993129,2cyclictest79533-21kworker/u16:1+events_unbound23:17:065
3801822993129,2cyclictest4078897-21kworker/u16:3+events_unbound21:47:334
1170742310,1sleep40-21swapper/422:56:504
3801830993029,0cyclictest0-21swapper/723:54:177
3801830993024,5cyclictest650-21systemd-journal23:37:047
3801825993028,2cyclictest3852391-21kworker/u16:0+events_unbound19:34:165
3801830992928,0cyclictest0-21swapper/723:12:487
3801830992928,0cyclictest0-21swapper/721:43:337
3801830992928,0cyclictest0-21swapper/720:42:357
3801830992927,1cyclictest4189238-21ssh22:04:317
3801830992927,1cyclictest247045-21ssh23:47:477
3801830992924,4cyclictest650-21systemd-journal23:57:057
3801829992925,3cyclictest4140548-21kworker/u16:0+events_unbound22:22:206
3801825992927,2cyclictest3852391-21kworker/u16:0+events_unbound20:02:075
3801825992927,2cyclictest3852391-21kworker/u16:0+events_unbound19:40:165
3801830992828,0cyclictest0-21swapper/700:10:547
3801830992828,0cyclictest0-21swapper/700:10:547
3801830992827,1cyclictest0-21swapper/721:58:347
3801830992827,0cyclictest0-21swapper/722:33:507
3801830992827,0cyclictest0-21swapper/720:51:207
3801830992827,0cyclictest0-21swapper/719:35:177
3801830992826,1cyclictest0-21swapper/722:56:467
3801825992826,2cyclictest3097908-21kworker/u16:4+events_unbound19:09:175
3801830992727,0cyclictest0-21swapper/700:13:587
3801830992726,0cyclictest0-21swapper/720:14:167
380183099270,26cyclictest5747-21gnome-shell19:08:157
3801825992725,2cyclictest3852391-21kworker/u16:0+events_unbound19:25:135
3801825992725,2cyclictest3792087-21kworker/u16:1+events_unbound20:41:205
3801822992725,2cyclictest295958-21kworker/u16:2+flush-8:000:09:564
3801822992725,2cyclictest295958-21kworker/u16:2+flush-8:000:09:564
3801830992626,0cyclictest0-21swapper/723:37:427
3801830992626,0cyclictest0-21swapper/700:26:347
3801830992625,1cyclictest0-21swapper/721:22:547
3801830992624,1cyclictest235402-21ssh23:43:297
3801825992624,2cyclictest3882165-21kworker/u16:4+events_unbound19:45:135
3801825992624,2cyclictest3852391-21kworker/u16:0+events_unbound20:37:045
3801825992624,2cyclictest3792087-21kworker/u16:1+events_unbound19:53:125
3801825992624,2cyclictest3792087-21kworker/u16:1+events_unbound19:06:165
3801830992525,0cyclictest0-21swapper/722:44:217
3801830992525,0cyclictest0-21swapper/722:28:227
3801830992524,1cyclictest0-21swapper/723:25:187
3801830992524,0cyclictest0-21swapper/720:54:127
3801830992524,0cyclictest0-21swapper/720:54:127
3801830992524,0cyclictest0-21swapper/720:02:397
3801830992524,0cyclictest0-21swapper/719:16:047
3801825992523,2cyclictest3928545-21kworker/u16:2+events_unbound20:17:045
3801825992523,2cyclictest3792087-21kworker/u16:1+events_unbound19:14:035
3801830992424,0cyclictest0-21swapper/723:08:347
3801825992422,2cyclictest3928545-21kworker/u16:2+events_unbound20:24:205
3801825992421,2cyclictest3852391-21kworker/u16:0+events_unbound19:57:205
3801822992422,2cyclictest6758-21kworker/u16:1+events_unbound22:10:394
3801822992422,2cyclictest6758-21kworker/u16:1+events_unbound22:10:394
3801822992422,2cyclictest4140548-21kworker/u16:0+events_unbound22:16:154
3801822992422,2cyclictest3996769-21kworker/u16:0+events_unbound20:52:344
3801822992422,2cyclictest3996769-21kworker/u16:0+events_unbound20:52:344
3801822992422,2cyclictest3882165-21kworker/u16:4+events_unbound19:47:344
3801822992422,2cyclictest3792087-21kworker/u16:1+events_unbound19:38:194
3801830992323,0cyclictest0-21swapper/721:04:027
3801830992321,1cyclictest3811259-21munin-run19:07:057
3801825992321,2cyclictest3987189-21kworker/u16:3+events_unbound20:43:175
3801825992321,2cyclictest3928545-21kworker/u16:2+events_unbound20:18:155
3801825992321,2cyclictest3097908-21kworker/u16:4+events_unbound19:20:045
3801825992321,2cyclictest3097908-21kworker/u16:4+events_unbound19:20:045
3801822992321,2cyclictest4153579-21kworker/u16:1+events_unbound21:52:524
3801822992321,2cyclictest115088-21kworker/u16:2+events_unbound22:59:364
3801830992221,0cyclictest0-21swapper/719:49:047
3801830992221,0cyclictest0-21swapper/719:29:547
3801829992219,2cyclictest4094979-21kworker/u16:4+flush-8:021:32:056
3801829992219,2cyclictest4094979-21kworker/u16:4+flush-8:021:32:056
3801825992220,2cyclictest3928545-21kworker/u16:2+events_unbound20:52:155
3801825992220,2cyclictest3928545-21kworker/u16:2+events_unbound20:52:155
3801822992220,2cyclictest79533-21kworker/u16:1+events_unbound00:02:044
3801822992220,2cyclictest19114-21kworker/u16:3+events_unbound22:39:074
3801822992220,2cyclictest163014-21kworker/u16:0+events_unbound23:19:154
3801822992218,2cyclictest295958-21kworker/u16:2+events_unbound00:27:524
3801830992120,0cyclictest0-21swapper/720:28:567
3801830992120,0cyclictest0-21swapper/719:55:177
3801830992120,0cyclictest0-21swapper/719:47:007
3801829992118,2cyclictest3792087-21kworker/u16:1+events_unbound19:57:186
3801825992119,2cyclictest3928545-21kworker/u16:2+events_unbound21:01:165
3801825992119,2cyclictest3928545-21kworker/u16:2+events_unbound20:31:365
3801830992019,0cyclictest0-21swapper/719:58:487
3801825992018,2cyclictest3792087-21kworker/u16:1+events_unbound20:11:485
3801822992018,2cyclictest201746-21kworker/u16:5+events_unbound23:46:324
3801830991919,0cyclictest0-21swapper/722:51:147
3801830991919,0cyclictest0-21swapper/722:51:147
3801830991918,0cyclictest0-21swapper/720:24:407
3801825991917,2cyclictest3852391-21kworker/u16:0+events_unbound19:50:085
3801822991917,2cyclictest4015651-21kworker/u16:4+events_unbound21:08:204
3801822991917,2cyclictest189759-21kworker/u16:3+events_unbound23:41:434
3801822991917,2cyclictest115088-21kworker/u16:2+events_unbound23:23:564
380183099180,17cyclictest0-21swapper/721:07:317
380182299187,5cyclictest65-21ksoftirqd/421:57:174
3801822991817,1cyclictest0-21swapper/421:37:254
3801822991816,2cyclictest4015651-21kworker/u16:4+events_unbound21:06:434
3801822991816,2cyclictest3996769-21kworker/u16:0+events_unbound20:44:164
3801822991816,2cyclictest3928545-21kworker/u16:2+events_unbound20:27:454
3801822991816,2cyclictest3852391-21kworker/u16:0+events_unbound19:30:204
3801822991816,2cyclictest33096-21kworker/u16:5+events_unbound22:33:314
3801822991816,2cyclictest307742-21kworker/u16:4+events_unbound00:23:174
3801822991816,2cyclictest189759-21kworker/u16:3+events_unbound23:29:404
3801822991816,2cyclictest189759-21kworker/u16:3+events_unbound23:29:404
3801822991816,2cyclictest127676-21kworker/u16:0+events_unbound23:03:524
3801830991716,0cyclictest0-21swapper/720:35:447
3801822991715,2cyclictest4094979-21kworker/u16:4+events_unbound21:31:454
3801822991715,2cyclictest4094979-21kworker/u16:4+events_unbound21:31:454
3801822991715,2cyclictest3928545-21kworker/u16:2+events_unbound20:49:134
3801830991613,2cyclictest0-21swapper/719:22:057
3801830991612,3cyclictest1267-21snmpd20:20:337
380183099160,15cyclictest5652-21ssh22:07:287
3801829991614,2cyclictest4167034-21kworker/u16:2+events_unbound22:12:326
3801822991614,2cyclictest79533-21kworker/u16:1+events_unbound23:11:314
3801822991614,2cyclictest4091626-21kworker/u16:0+events_unbound21:24:324
3801822991614,2cyclictest4078897-21kworker/u16:3+events_unbound22:05:524
3801822991614,2cyclictest4078897-21kworker/u16:3+events_unbound21:44:414
3801822991614,2cyclictest3852391-21kworker/u16:0+events_unbound19:55:054
3801822991614,2cyclictest3852391-21kworker/u16:0+events_unbound19:25:234
3801822991614,2cyclictest307742-21kworker/u16:4+events_unbound00:18:394
3801822991614,2cyclictest19114-21kworker/u16:3+events_unbound22:18:454
3801822991613,2cyclictest79533-21kworker/u16:1+events_unbound22:42:074
3801822991613,2cyclictest282306-21ntpq00:02:284
3801830991514,0cyclictest0-21swapper/719:18:197
3801830991514,0cyclictest0-21swapper/719:18:197
3801822991514,1cyclictest65-21ksoftirqd/420:17:304
3801822991513,2cyclictest4070613-21kworker/u16:1+events_unbound21:20:164
3801822991513,2cyclictest3928545-21kworker/u16:2+events_unbound21:36:354
3801822991513,2cyclictest3928545-21kworker/u16:2+events_unbound20:36:314
3801822991513,2cyclictest3928545-21kworker/u16:2+events_unbound20:09:314
3801822991513,2cyclictest33096-21kworker/u16:5+events_unbound22:24:314
3801822991513,2cyclictest295958-21kworker/u16:2+events_unbound00:14:234
3801822991513,2cyclictest201696-21kworker/u16:4+events_unbound23:33:254
380183099146,7cyclictest0-21swapper/721:47:247
380183099146,7cyclictest0-21swapper/721:27:207
380183099146,7cyclictest0-21swapper/721:27:207
380183099146,7cyclictest0-21swapper/721:12:477
3801830991413,0cyclictest0-21swapper/720:09:217
3801829991413,1cyclictest0-21swapper/622:27:246
380182999140,1cyclictest0-21swapper/623:58:316
380182999140,14cyclictest0-21swapper/623:39:366
380182999140,14cyclictest0-21swapper/621:33:296
380182999140,14cyclictest0-21swapper/600:27:326
380182999140,14cyclictest0-21swapper/600:10:116
380182999140,14cyclictest0-21swapper/600:10:116
380182999140,13cyclictest0-21swapper/623:32:116
380182999140,13cyclictest0-21swapper/621:42:166
380182999140,13cyclictest0-21swapper/619:17:166
380182999140,13cyclictest0-21swapper/619:17:166
3801822991412,2cyclictest5873-21gsd-housekeepin22:50:024
3801822991412,2cyclictest5873-21gsd-housekeepin22:50:024
3801822991412,2cyclictest5873-21gsd-housekeepin20:23:024
3801822991412,2cyclictest3928545-21kworker/u16:2+events_unbound21:13:584
3801822991412,2cyclictest3792087-21kworker/u16:1+events_unbound20:41:124
3801822991412,2cyclictest3792087-21kworker/u16:1+events_unbound19:08:014
3801822991412,2cyclictest3097908-21kworker/u16:4+events_unbound19:18:154
3801822991412,2cyclictest3097908-21kworker/u16:4+events_unbound19:18:154
3801822991412,2cyclictest248319-21kworker/u16:0+events_unbound23:54:194
380182299140,0cyclictest0-21swapper/419:02:334
3801829991312,1cyclictest0-21swapper/623:15:386
3801829991312,1cyclictest0-21swapper/623:10:076
3801829991312,1cyclictest0-21swapper/622:10:506
3801829991312,1cyclictest0-21swapper/622:10:506
3801829991312,1cyclictest0-21swapper/621:56:396
3801829991312,1cyclictest0-21swapper/621:15:216
3801829991311,1cyclictest0-21swapper/620:12:176
380182999130,1cyclictest0-21swapper/623:04:366
380182999130,1cyclictest0-21swapper/619:37:176
380182999130,12cyclictest0-21swapper/622:37:306
380182999130,0cyclictest0-21swapper/622:57:116
380182299136,4cyclictest65-21ksoftirqd/422:27:214
3801822991312,1cyclictest4032177-21grep20:57:244
3801822991311,2cyclictest3852391-21kworker/u16:0+events_unbound19:59:454
3801822991311,2cyclictest3852391-21kworker/u16:0+events_unbound19:33:244
3801822991311,2cyclictest3792087-21kworker/u16:1+events_unbound20:16:134
380183099128,3cyclictest1267-21snmpd20:57:217
380183099125,6cyclictest0-21swapper/719:41:127
3801829991211,1cyclictest0-21swapper/623:56:386
3801829991211,1cyclictest0-21swapper/623:21:096
3801829991211,1cyclictest0-21swapper/622:05:296
3801829991211,1cyclictest0-21swapper/621:49:336
3801829991211,1cyclictest0-21swapper/621:39:006
3801829991211,1cyclictest0-21swapper/621:24:206
3801829991211,1cyclictest0-21swapper/600:19:486
380182299129,2cyclictest238648-21iostat23:47:194
3801822991210,2cyclictest3792087-21kworker/u16:1+events_unbound20:06:174
3801822991210,2cyclictest3792087-21kworker/u16:1+events_unbound19:14:444
3801822991210,1cyclictest3883408-21kthreadcore19:42:224
380182999119,2cyclictest163014-21kworker/u16:0+events_unbound23:27:196
380182999119,2cyclictest163014-21kworker/u16:0+events_unbound23:27:196
380182999117,3cyclictest4016675-21cat20:52:206
380182999117,3cyclictest4016675-21cat20:52:206
3801829991110,1cyclictest0-21swapper/621:04:386
3801829991110,1cyclictest0-21swapper/619:55:166
3801829991110,1cyclictest0-21swapper/619:48:296
3801829991110,1cyclictest0-21swapper/600:02:186
380182999110,1cyclictest0-21swapper/620:45:246
380182999110,11cyclictest0-21swapper/620:08:026
380182999110,11cyclictest0-21swapper/619:35:056
380182999110,11cyclictest0-21swapper/619:08:076
380182999109,1cyclictest0-21swapper/623:26:406
380182999109,1cyclictest0-21swapper/622:00:076
380182999109,1cyclictest0-21swapper/620:58:576
380182999109,1cyclictest0-21swapper/619:46:166
380182999109,1cyclictest0-21swapper/619:23:536
380182999109,1cyclictest0-21swapper/619:05:556
380182999105,4cyclictest4049230-21kthreadcore21:07:246
38018299998,1cyclictest0-21swapper/622:51:406
38018299998,1cyclictest0-21swapper/622:51:406
38018299998,1cyclictest0-21swapper/622:19:076
38018299998,1cyclictest0-21swapper/620:49:206
38018299998,1cyclictest0-21swapper/620:41:086
38018299998,1cyclictest0-21swapper/619:28:186
38018299998,1cyclictest0-21swapper/600:13:586
38018299995,3cyclictest3974505-21kthreadcore20:27:256
38018299990,8cyclictest328692-21cut00:22:256
38018299987,1cyclictest0-21swapper/620:22:236
38018299985,2cyclictest0-21swapper/620:17:196
38018299983,4cyclictest83791-21cut22:42:236
38018299983,4cyclictest3920725-21expr20:02:156
38018299983,4cyclictest3833349-21wc19:12:326
38018299975,1cyclictest0-21swapper/622:52:206
38018299974,2cyclictest237807-21/usr/sbin/munin23:47:216
38018299973,3cyclictest57577-21cat22:32:176
38018299972,4cyclictest3978973-21tr20:32:216
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