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2026-03-23 - 16:54
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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 Mon Mar 23, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33545226352,7sleep40-21swapper/407:00:414
8489222610,0sleep7848923-21sh10:58:277
8489222610,0sleep7848923-21sh10:58:277
335918995750,5cyclictest642062-21latency_hist09:33:147
33545625242,7sleep60-21swapper/607:00:436
33544424635,8sleep50-21swapper/507:00:345
335918994439,4cyclictest920674-21latency_hist11:28:157
335918994241,0cyclictest0-21swapper/710:06:047
335918994039,0cyclictest0-21swapper/707:58:487
335918993938,0cyclictest0-21swapper/712:22:057
335918993936,2cyclictest443919-21open_files07:53:437
335918993837,1cyclictest821479-21ssh10:43:487
335918993837,0cyclictest0-21swapper/708:28:487
335912993836,2cyclictest483312-21kworker/u16:1+events_unbound08:43:415
335912993836,2cyclictest483312-21kworker/u16:1+events_unbound08:23:415
3264852383,30sleep70-21swapper/706:58:197
335918993634,1cyclictest0-21swapper/711:31:557
335918993535,0cyclictest0-21swapper/712:02:467
335918993433,0cyclictest0-21swapper/708:23:307
335918993430,3cyclictest609979-21cut09:18:357
335918993332,0cyclictest0-21swapper/712:07:277
335918993331,1cyclictest569215-21diskmemload09:11:467
335912993330,2cyclictest525677-21kworker/u16:6+events_unbound09:48:195
335912993230,2cyclictest483312-21kworker/u16:1+flush-8:009:29:015
335907993230,2cyclictest945016-21kworker/u16:3+flush-8:011:54:444
335918993131,0cyclictest0-21swapper/709:15:507
335918993130,0cyclictest0-21swapper/708:53:407
335918993128,2cyclictest810440-21ssh10:40:437
335912993129,2cyclictest945016-21kworker/u16:3+events_unbound11:47:165
335912993129,2cyclictest262973-21kworker/u16:4+events_unbound08:20:495
335918993030,0cyclictest0-21swapper/711:55:557
335918993030,0cyclictest0-21swapper/711:17:537
335918993030,0cyclictest0-21swapper/710:35:387
335912993028,2cyclictest425821-21kworker/u16:3+events_unbound08:11:285
335912993028,2cyclictest1040310-21kworker/u16:1+events_unbound12:23:445
335918992929,0cyclictest0-21swapper/712:31:497
335918992929,0cyclictest0-21swapper/711:45:467
335918992929,0cyclictest0-21swapper/711:20:237
335918992928,0cyclictest0-21swapper/712:09:507
335912992927,2cyclictest945016-21kworker/u16:3+events_unbound11:49:015
335912992927,2cyclictest502283-21kworker/u16:2+events_unbound08:35:485
335907992928,1cyclictest483312-21kworker/u16:1+events_unbound10:26:114
335918992828,0cyclictest0-21swapper/710:10:067
335918992828,0cyclictest0-21swapper/709:35:507
335918992827,0cyclictest0-21swapper/707:11:257
335918992826,1cyclictest870547-21ssh11:05:057
335916992826,2cyclictest945016-21kworker/u16:3+flush-8:012:13:356
335916992826,2cyclictest483312-21kworker/u16:1+events_unbound09:54:286
335912992826,2cyclictest525677-21kworker/u16:6+events_unbound08:59:195
335912992826,2cyclictest483312-21kworker/u16:1+events_unbound08:50:535
335912992826,2cyclictest483312-21kworker/u16:1+events_unbound08:42:525
335918992727,0cyclictest0-21swapper/710:17:397
335918992726,0cyclictest0-21swapper/709:56:027
335918992721,5cyclictest650-21systemd-journal10:23:147
335916992725,2cyclictest444888-21kworker/u16:0+events_unbound08:03:436
335912992725,2cyclictest750709-21kworker/u16:4+events_unbound10:23:315
335912992725,2cyclictest422830-21kworker/u16:2+events_unbound07:55:005
335918992626,0cyclictest0-21swapper/709:46:587
335918992625,0cyclictest0-21swapper/708:46:497
335918992625,0cyclictest0-21swapper/708:14:527
335916992624,2cyclictest406820-21kworker/u16:1+events_unbound07:38:296
335912992624,2cyclictest893316-21kworker/u16:4+events_unbound11:34:125
335912992624,2cyclictest444888-21kworker/u16:0+events_unbound08:30:045
335912992624,2cyclictest425821-21kworker/u16:3+events_unbound08:16:005
335918992525,0cyclictest0-21swapper/712:23:497
335918992525,0cyclictest0-21swapper/710:28:527
335918992525,0cyclictest0-21swapper/709:42:547
335918992524,0cyclictest0-21swapper/709:00:287
335918992524,0cyclictest0-21swapper/707:26:417
335916992523,2cyclictest335673-21kworker/u16:1+flush-8:007:08:206
335912992523,2cyclictest483312-21kworker/u16:1+events_unbound08:56:535
335907992524,1cyclictest835945-21kworker/u16:3+events_unbound11:04:494
10678702250,1chrt65-21ksoftirqd/412:28:334
335918992424,0cyclictest0-21swapper/712:15:557
335918992423,0cyclictest0-21swapper/707:19:497
335912992422,2cyclictest945016-21kworker/u16:3+flush-8:011:54:165
335912992422,2cyclictest835945-21kworker/u16:3+events_unbound11:13:495
335912992422,2cyclictest525677-21kworker/u16:6+events_unbound09:08:155
335912992422,2cyclictest406820-21kworker/u16:1+events_unbound08:00:185
335918992323,0cyclictest0-21swapper/708:51:197
335918992322,0cyclictest0-21swapper/707:40:167
335918992322,0cyclictest0-21swapper/707:07:267
33591899231,20cyclictest525676-21cut08:38:347
335912992321,2cyclictest422830-21kworker/u16:2+events_unbound07:45:315
335912992321,2cyclictest387217-21kworker/u16:0+events_unbound07:41:325
335907992321,2cyclictest425821-21kworker/u16:3+flush-8:008:13:364
335918992221,0cyclictest0-21swapper/707:36:337
335916992220,2cyclictest483312-21kworker/u16:1+flush-8:010:43:106
335916992220,2cyclictest335673-21kworker/u16:1+events_unbound07:13:386
335916992220,2cyclictest262973-21kworker/u16:4+events_unbound07:43:326
335912992220,2cyclictest444888-21kworker/u16:0+events_unbound08:06:185
335912992220,2cyclictest422830-21kworker/u16:2+events_unbound07:51:195
335912992220,2cyclictest335673-21kworker/u16:1+events_unbound07:06:535
335912992220,2cyclictest262973-21kworker/u16:4+events_unbound07:31:545
335912992220,2cyclictest262973-21kworker/u16:4+events_unbound07:31:545
335918992120,0cyclictest0-21swapper/707:15:567
33591899210,19cyclictest422829-21kthreadcore07:43:357
335916992119,2cyclictest525677-21kworker/u16:6+events_unbound08:50:306
335916992119,2cyclictest444888-21kworker/u16:0+events_unbound08:36:596
335912992119,2cyclictest893316-21kworker/u16:4+events_unbound11:28:575
335918992020,0cyclictest0-21swapper/710:50:187
335918992019,0cyclictest0-21swapper/707:48:177
335916992018,2cyclictest262973-21kworker/u16:4+events_unbound07:28:566
335916992018,2cyclictest262973-21kworker/u16:4+events_unbound07:28:566
335916992017,2cyclictest564155-21kworker/u16:3+flush-8:009:38:146
335916992017,2cyclictest502283-21kworker/u16:2+events_unbound08:38:276
335912992018,2cyclictest564155-21kworker/u16:3+flush-8:009:38:025
335912992018,2cyclictest368630-21kworker/u16:2+events_unbound07:18:485
335912992018,2cyclictest335673-21kworker/u16:1+events_unbound07:24:385
335912992018,2cyclictest325821-21kworker/u16:0+events_unbound07:09:315
335918991919,0cyclictest0-21swapper/711:48:497
335918991919,0cyclictest0-21swapper/708:05:177
335916991917,2cyclictest525677-21kworker/u16:6+events_unbound08:58:096
335916991917,2cyclictest483312-21kworker/u16:1+events_unbound10:28:486
335912991917,2cyclictest957062-21kworker/u16:5+events_unbound12:13:585
335912991917,2cyclictest483312-21kworker/u16:1+events_unbound09:19:175
335912991917,2cyclictest325821-21kworker/u16:0+events_unbound07:15:395
335912991916,2cyclictest690657-21kworker/u16:3+events_unbound10:08:225
335918991817,0cyclictest0-21swapper/708:35:137
335918991817,0cyclictest0-21swapper/708:22:527
335918991814,3cyclictest124-21kswapd009:58:317
335916991816,2cyclictest945016-21kworker/u16:3+flush-8:011:38:436
335916991816,2cyclictest945016-21kworker/u16:3+flush-8:011:38:436
335916991816,2cyclictest483312-21kworker/u16:1+events_unbound10:16:236
335916991816,2cyclictest1014472-21kworker/u16:0+events_unbound12:18:326
335912991816,2cyclictest944914-21kworker/u16:2+flush-8:012:03:095
335912991816,2cyclictest835945-21kworker/u16:3+flush-8:011:08:385
335912991816,2cyclictest773079-21kworker/u16:0+flush-8:010:33:145
335912991816,2cyclictest262973-21kworker/u16:4+events_unbound07:37:305
335907991814,3cyclictest335673-21kworker/u16:1+flush-8:007:08:404
335916991715,2cyclictest944914-21kworker/u16:2+events_unbound11:44:126
335916991715,2cyclictest835945-21kworker/u16:3+events_unbound11:17:126
335916991715,2cyclictest773079-21kworker/u16:0+events_unbound10:58:346
335916991715,2cyclictest773079-21kworker/u16:0+events_unbound10:58:346
335916991715,2cyclictest664632-21kworker/u16:0+events_unbound09:58:226
335916991715,2cyclictest483312-21kworker/u16:1+flush-8:010:23:326
335916991715,2cyclictest483312-21kworker/u16:1+events_unbound08:18:336
335912991715,2cyclictest800151-21kworker/u16:2+flush-8:010:53:335
335916991614,2cyclictest525677-21kworker/u16:6+events_unbound09:06:416
335916991614,2cyclictest483312-21kworker/u16:1+flush-8:010:18:406
335916991614,2cyclictest262973-21kworker/u16:4+events_unbound07:33:286
335912991614,2cyclictest835945-21kworker/u16:3+events_unbound11:18:555
335912991614,2cyclictest690657-21kworker/u16:3+events_unbound09:59:335
335907991614,2cyclictest262973-21kworker/u16:4+flush-8:007:23:444
335907991613,2cyclictest664632-21kworker/u16:0+flush-8:009:53:204
335916991513,2cyclictest957062-21kworker/u16:5+flush-8:011:54:246
335916991513,2cyclictest944914-21kworker/u16:2+events_unbound12:03:316
335916991513,2cyclictest919245-21kworker/u16:0+events_unbound11:27:416
335916991513,2cyclictest835945-21kworker/u16:3+events_unbound11:18:486
335916991513,2cyclictest800151-21kworker/u16:2+events_unbound11:10:176
335916991513,2cyclictest525677-21kworker/u16:6+events_unbound09:46:256
335916991513,2cyclictest422830-21kworker/u16:2+events_unbound07:48:296
335912991513,2cyclictest945016-21kworker/u16:3+events_unbound12:09:445
335912991513,2cyclictest945016-21kworker/u16:3+events_unbound12:06:315
335912991513,2cyclictest483312-21kworker/u16:1+events_unbound10:39:175
335912991513,2cyclictest483312-21kworker/u16:1+events_unbound09:42:095
335912991513,2cyclictest1075554-21kworker/u16:0+events_unbound12:33:095
33591899146,7cyclictest0-21swapper/710:25:367
33591899146,7cyclictest0-21swapper/709:48:157
335918991414,0cyclictest0-21swapper/708:12:517
335918991411,2cyclictest573974-21kthreadcore09:03:357
33591899140,12cyclictest909-21polkitd07:33:157
33591899140,12cyclictest909-21polkitd07:33:157
335916991413,1cyclictest0-21swapper/610:48:556
335916991412,2cyclictest835945-21kworker/u16:3+events_unbound11:04:226
335916991412,2cyclictest785893-21kworker/u16:3+events_unbound10:36:176
335916991412,2cyclictest690657-21kworker/u16:3+events_unbound10:03:516
335916991412,2cyclictest664632-21kworker/u16:0+events_unbound09:52:526
335916991412,2cyclictest564155-21kworker/u16:3+events_unbound09:29:006
335916991412,2cyclictest525677-21kworker/u16:6+events_unbound09:18:136
335916991411,2cyclictest944914-21kworker/u16:2+events_unbound11:58:186
33591699140,1cyclictest0-21swapper/610:58:046
335912991412,2cyclictest919245-21kworker/u16:0+events_unbound11:28:035
335912991412,2cyclictest785893-21kworker/u16:3+events_unbound10:38:095
335912991412,2cyclictest1040310-21kworker/u16:1+events_unbound12:19:135
33591299140,1cyclictest0-21swapper/510:46:375
33591299140,1cyclictest0-21swapper/509:46:525
33591299140,14cyclictest0-21swapper/509:55:235
33591299140,14cyclictest0-21swapper/509:07:465
335907991413,1cyclictest0-21swapper/411:08:294
335907991413,1cyclictest0-21swapper/410:37:074
335907991413,1cyclictest0-21swapper/410:16:184
335907991413,1cyclictest0-21swapper/410:06:044
335907991411,2cyclictest525677-21kworker/u16:6+flush-8:009:48:194
33590799140,1cyclictest0-21swapper/410:55:344
33590799140,1cyclictest0-21swapper/409:10:344
33590799140,14cyclictest0-21swapper/412:26:514
33590799140,14cyclictest0-21swapper/411:23:374
33590799140,14cyclictest0-21swapper/409:06:094
33591899138,4cyclictest619090-21cat09:23:307
33591899136,6cyclictest0-21swapper/711:38:417
33591899136,6cyclictest0-21swapper/711:38:417
33591899136,6cyclictest0-21swapper/711:33:427
33591899136,6cyclictest0-21swapper/710:54:057
33591899135,7cyclictest0-21swapper/711:08:317
335916991312,1cyclictest0-21swapper/611:50:346
335916991312,1cyclictest0-21swapper/608:23:436
335916991311,2cyclictest919245-21kworker/u16:0+events_unbound11:33:376
335916991311,2cyclictest525677-21kworker/u16:6+events_unbound09:41:116
335916991311,2cyclictest502283-21kworker/u16:2+events_unbound08:29:126
335916991311,2cyclictest483312-21kworker/u16:1+events_unbound10:46:356
335916991311,2cyclictest444888-21kworker/u16:0+events_unbound08:44:036
335916991311,2cyclictest368630-21kworker/u16:2+flush-8:007:18:346
335916991311,2cyclictest262973-21kworker/u16:4+flush-8:008:08:316
335916991311,2cyclictest262973-21kworker/u16:4+events_unbound08:14:266
33591699130,13cyclictest0-21swapper/610:12:116
335912991312,1cyclictest0-21swapper/510:05:565
335912991311,2cyclictest800151-21kworker/u16:2+events_unbound10:58:325
335912991311,2cyclictest800151-21kworker/u16:2+events_unbound10:58:325
335907991312,1cyclictest483312-21kworker/u16:1+events_unbound09:25:134
335907991312,1cyclictest0-21swapper/412:22:354
335907991312,1cyclictest0-21swapper/412:07:274
335907991312,1cyclictest0-21swapper/411:58:374
335907991312,1cyclictest0-21swapper/411:38:464
335907991312,1cyclictest0-21swapper/411:38:464
335907991312,1cyclictest0-21swapper/410:18:214
335907991312,1cyclictest0-21swapper/410:12:124
335907991312,1cyclictest0-21swapper/407:53:474
335907991311,2cyclictest919245-21kworker/u16:0+flush-8:011:28:424
335907991311,2cyclictest335673-21kworker/u16:1+flush-8:007:18:414
335907991311,2cyclictest262973-21kworker/u16:4+events_unbound07:43:284
33590799130,13cyclictest0-21swapper/412:13:554
33590799130,13cyclictest0-21swapper/411:47:354
33590799130,13cyclictest0-21swapper/409:21:464
33590799130,13cyclictest0-21swapper/409:14:594
335916991210,2cyclictest945016-21kworker/u16:3+events_unbound12:28:496
335916991210,2cyclictest945016-21kworker/u16:3+events_unbound12:11:376
335916991210,2cyclictest931914-21kworker/u16:1+events_unbound11:32:286
335916991210,2cyclictest525677-21kworker/u16:6+events_unbound08:58:326
335916991210,2cyclictest483312-21kworker/u16:1+flush-8:009:08:586
33591699120,1cyclictest0-21swapper/607:27:266
33591699120,12cyclictest0-21swapper/607:55:306
335912991211,1cyclictest0-21swapper/509:14:235
335912991210,2cyclictest800151-21kworker/u16:2+flush-8:011:03:595
335912991210,2cyclictest664632-21kworker/u16:0+events_unbound10:13:435
335912991210,2cyclictest560009-21kworker/u16:2+events_unbound09:23:255
335907991211,1cyclictest0-21swapper/411:52:004
335907991211,1cyclictest0-21swapper/409:34:324
33590799120,12cyclictest0-21swapper/408:24:414
33591699119,2cyclictest945016-21kworker/u16:3+events_unbound12:27:156
33591699119,2cyclictest564155-21kworker/u16:3+events_unbound09:25:406
33591699119,2cyclictest483312-21kworker/u16:1+events_unbound09:22:196
33591699119,2cyclictest406820-21kworker/u16:1+events_unbound08:01:446
33591299119,2cyclictest800151-21kworker/u16:2+events_unbound10:52:015
33591299119,2cyclictest750709-21kworker/u16:4+flush-8:010:23:095
335912991110,1cyclictest0-21swapper/511:41:295
335912991110,1cyclictest0-21swapper/511:41:295
335907991110,1cyclictest0-21swapper/411:17:104
335907991110,1cyclictest0-21swapper/410:50:594
335907991110,1cyclictest0-21swapper/410:01:584
335907991110,1cyclictest0-21swapper/409:47:084
335907991110,1cyclictest0-21swapper/409:40:504
335907991110,1cyclictest0-21swapper/408:22:104
335907991110,1cyclictest0-21swapper/408:11:554
335907991110,1cyclictest0-21swapper/407:48:164
335907991110,1cyclictest0-21swapper/407:40:044
335907991110,1cyclictest0-21swapper/407:14:324
33590799110,11cyclictest0-21swapper/408:54:204
33590799110,0cyclictest0-21swapper/407:34:244
33590799109,1cyclictest0-21swapper/410:59:494
33590799109,1cyclictest0-21swapper/410:59:494
33590799109,1cyclictest0-21swapper/410:28:364
33590799109,1cyclictest0-21swapper/409:32:294
33590799109,1cyclictest0-21swapper/408:59:034
33590799109,1cyclictest0-21swapper/407:31:344
33590799109,1cyclictest0-21swapper/407:31:344
33590799109,1cyclictest0-21swapper/407:06:014
3359079997,2cyclictest773079-21kworker/u16:0+flush-8:010:38:554
3359169983,4cyclictest341271-21cut07:03:346
3359079987,1cyclictest0-21swapper/412:09:304
3359079987,1cyclictest0-21swapper/408:04:124
3359079976,1cyclictest0-21swapper/411:21:254
3359079976,1cyclictest0-21swapper/408:51:584
3359079970,2cyclictest0-21swapper/408:39:394
3359079965,1cyclictest0-21swapper/411:34:214
3359079965,1cyclictest0-21swapper/408:29:444
3359079964,1cyclictest0-21swapper/408:34:394
3359079963,2cyclictest8157012sleep410:43:354
3359079963,2cyclictest4542492sleep408:00:504
3359079950,4cyclictest531891-21taskset08:43:284
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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