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2026-04-12 - 14:41
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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 Sun Apr 12, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
782761996259,2cyclictest1100043-21kworker/u16:1+events_unbound09:42:094
782761996158,2cyclictest753602-21kworker/u16:1+events_unbound08:07:104
78230425848,7sleep40-21swapper/406:59:234
78223125848,7sleep50-21swapper/506:58:195
782761995653,2cyclictest1016538-21kworker/u16:0+flush-8:009:27:104
78277099540,52cyclictest1148223-21latency_hist09:56:557
782770995352,0cyclictest0-21swapper/711:37:107
782761995351,2cyclictest1434523-21kworker/u16:1+events_unbound12:02:104
782761995048,2cyclictest1232365-21kworker/u16:1+events_unbound11:22:144
782761995048,2cyclictest1133181-21kworker/u16:7+events_unbound11:27:254
782761995047,2cyclictest1232365-21kworker/u16:1+flush-8:011:02:254
782761994947,2cyclictest1340205-21kworker/u16:3+events_unbound11:47:094
782761994947,2cyclictest1280119-21kworker/u16:0+events_unbound10:52:304
782761994947,2cyclictest1133181-21kworker/u16:7+flush-8:010:32:294
782761994846,2cyclictest1062064-21kworker/u16:2+events_unbound10:27:124
782761994845,2cyclictest1133181-21kworker/u16:7+events_unbound10:12:094
78223224838,7sleep60-21swapper/606:58:206
782761994745,2cyclictest1112008-21kworker/u16:4+events_unbound10:08:534
782761994744,2cyclictest843984-21kworker/u16:0+flush-8:008:12:134
7768992473,37sleep70-21swapper/706:57:177
782766994644,2cyclictest1062064-21kworker/u16:2+flush-8:010:11:556
782761994644,2cyclictest769949-21kworker/u16:3+flush-8:007:22:214
782761994543,2cyclictest1363143-21kworker/u16:0+flush-8:011:37:244
782761994543,2cyclictest1062064-21kworker/u16:2+events_unbound10:22:244
782766994441,3cyclictest1062064-21kworker/u16:2+flush-8:009:42:216
782761994442,2cyclictest891267-21kworker/u16:2+events_unbound08:42:254
782761994442,2cyclictest1232365-21kworker/u16:1+events_unbound11:07:454
782766994341,2cyclictest1062064-21kworker/u16:2+events_unbound09:32:266
782761994341,2cyclictest1413556-21kworker/u16:2+events_unbound12:25:574
782761994341,2cyclictest1413556-21kworker/u16:2+events_unbound12:11:574
782761994341,2cyclictest1340205-21kworker/u16:3+events_unbound12:21:164
782761994341,2cyclictest1340205-21kworker/u16:3+events_unbound11:56:224
782761994341,2cyclictest1232365-21kworker/u16:1+events_unbound10:48:574
782761994341,2cyclictest1133181-21kworker/u16:7+events_unbound09:57:254
782761994341,2cyclictest1133181-21kworker/u16:7+events_unbound09:57:254
782761994341,2cyclictest1112008-21kworker/u16:4+events_unbound09:51:104
782761994341,2cyclictest1016538-21kworker/u16:0+events_unbound09:35:134
782761994341,2cyclictest1016538-21kworker/u16:0+events_unbound09:16:544
782766994240,2cyclictest753602-21kworker/u16:1+flush-8:007:11:556
782761994240,2cyclictest929824-21kworker/u16:1+events_unbound09:03:334
782761994240,2cyclictest1340205-21kworker/u16:3+events_unbound12:11:374
782761994240,2cyclictest1340205-21kworker/u16:3+events_unbound11:58:144
782761994240,2cyclictest1340205-21kworker/u16:3+events_unbound11:58:144
782761994240,2cyclictest1340205-21kworker/u16:3+events_unbound11:44:454
782770994140,0cyclictest0-21swapper/710:27:377
782770994136,4cyclictest1436134-21sed11:56:547
782770994033,1cyclictest1410523-21ssh11:44:047
782765994038,2cyclictest1363143-21kworker/u16:0+flush-8:011:47:215
782761994038,2cyclictest1232365-21kworker/u16:1+flush-8:011:12:424
782761994038,2cyclictest1133181-21kworker/u16:7+events_unbound11:20:294
782761994038,2cyclictest1133181-21kworker/u16:7+events_unbound10:39:014
782761994038,2cyclictest1112008-21kworker/u16:4+events_unbound10:19:304
782761994038,2cyclictest1062064-21kworker/u16:2+flush-8:010:42:234
782770993938,0cyclictest0-21swapper/708:12:257
782770993938,0cyclictest0-21swapper/708:06:587
782761993937,2cyclictest1062064-21kworker/u16:2+events_unbound10:04:024
782761993937,2cyclictest1016538-21kworker/u16:0+events_unbound09:40:104
782761993936,2cyclictest753602-21kworker/u16:1+events_unbound07:12:094
782761993936,2cyclictest753602-21kworker/u16:1+events_unbound07:12:094
782770993837,0cyclictest0-21swapper/710:38:367
782770993837,0cyclictest0-21swapper/710:16:567
782761993836,2cyclictest1508267-21kworker/u16:1+events_unbound12:29:534
782761993836,2cyclictest1363143-21kworker/u16:0+events_unbound11:36:014
782761993835,2cyclictest769949-21kworker/u16:3+events_unbound07:27:104
11348572380,0sleep71134858-21sh09:49:297
782770993733,2cyclictest842820-21ntpq07:27:227
782766993735,2cyclictest1232365-21kworker/u16:1+events_unbound10:37:106
782766993734,3cyclictest891267-21kworker/u16:2+flush-8:008:52:216
782766993734,2cyclictest968181-21kworker/u16:3+events_unbound09:22:096
782761993735,2cyclictest968181-21kworker/u16:3+events_unbound09:16:584
782761993735,2cyclictest968181-21kworker/u16:3+events_unbound09:16:584
782761993735,2cyclictest929824-21kworker/u16:1+events_unbound09:09:424
782761993735,2cyclictest1062064-21kworker/u16:2+events_unbound09:54:304
782761993734,2cyclictest843984-21kworker/u16:0+flush-8:007:51:554
782766993634,2cyclictest1133181-21kworker/u16:7+events_unbound09:52:266
782765993634,2cyclictest1016538-21kworker/u16:0+events_unbound09:12:235
782761993634,2cyclictest1016538-21kworker/u16:0+events_unbound09:23:194
782770993534,0cyclictest0-21swapper/710:02:567
782770993533,1cyclictest1015763-21diskmemload10:59:287
782770993533,1cyclictest1015763-21diskmemload10:36:277
782770993531,2cyclictest1518435-21ssh12:29:247
782766993532,2cyclictest1413556-21kworker/u16:2+flush-8:011:53:056
782761993533,2cyclictest843984-21kworker/u16:0+events_unbound07:42:114
782761993533,2cyclictest753602-21kworker/u16:1+events_unbound07:17:184
782761993533,2cyclictest1280119-21kworker/u16:0+events_unbound10:59:174
782761993532,2cyclictest891267-21kworker/u16:2+events_unbound08:16:584
782770993433,0cyclictest0-21swapper/710:42:287
782770993429,4cyclictest967968-21latency_hist08:36:557
782766993432,2cyclictest1340205-21kworker/u16:3+flush-8:012:12:266
782761993432,2cyclictest968181-21kworker/u16:3+events_unbound08:57:224
782770993331,1cyclictest0-21swapper/709:40:007
782770993330,2cyclictest948525-21unixbench_singl08:22:277
782766993331,2cyclictest1434523-21kworker/u16:1+flush-8:011:57:216
782766993331,2cyclictest1434523-21kworker/u16:1+flush-8:011:57:216
782766993331,2cyclictest1340205-21kworker/u16:3+events_unbound11:42:266
782766993331,2cyclictest1062064-21kworker/u16:2+events_unbound09:27:146
782766993331,2cyclictest1016538-21kworker/u16:0+events_unbound09:12:136
782765993331,2cyclictest968181-21kworker/u16:3+events_unbound09:37:225
782761993331,2cyclictest891267-21kworker/u16:2+flush-8:008:47:154
782770993231,0cyclictest0-21swapper/708:55:057
782770993231,0cyclictest0-21swapper/708:47:287
782770993227,4cyclictest650-21systemd-journal07:26:507
78277099320,31cyclictest1316109-21cat11:06:507
782765993230,2cyclictest843984-21kworker/u16:0+events_unbound08:30:455
782770993131,0cyclictest0-21swapper/709:44:477
782770993130,0cyclictest0-21swapper/711:28:047
782770993130,0cyclictest0-21swapper/707:39:587
782770993130,0cyclictest0-21swapper/707:08:157
782770993129,1cyclictest1157160-21strings09:57:217
782770993129,1cyclictest1157160-21strings09:57:217
782766993130,1cyclictest1133181-21kworker/u16:7+events_unbound11:00:336
782766993129,2cyclictest843984-21kworker/u16:0+events_unbound07:57:226
782766993129,2cyclictest1133181-21kworker/u16:7+events_unbound11:27:296
782765993129,2cyclictest891267-21kworker/u16:2+events_unbound08:41:345
782761993129,2cyclictest753602-21kworker/u16:1+events_unbound07:57:124
12918672310,1sleep60-21swapper/610:56:216
782770993030,0cyclictest0-21swapper/712:12:427
782770993030,0cyclictest0-21swapper/711:49:207
782770993030,0cyclictest0-21swapper/709:07:317
782770993029,0cyclictest0-21swapper/711:14:277
782770993029,0cyclictest0-21swapper/707:21:057
782765993028,2cyclictest843984-21kworker/u16:0+events_unbound07:36:455
782765993028,2cyclictest769949-21kworker/u16:3+events_unbound07:20:025
782761993028,2cyclictest753602-21kworker/u16:1+events_unbound07:38:424
782770992929,0cyclictest0-21swapper/711:25:087
782770992929,0cyclictest0-21swapper/709:18:207
782770992929,0cyclictest0-21swapper/709:18:207
782770992928,0cyclictest0-21swapper/710:52:367
782770992928,0cyclictest0-21swapper/708:03:497
782770992928,0cyclictest0-21swapper/707:49:137
782765992927,2cyclictest782543-21kworker/u16:2+events_unbound07:10:085
782765992927,2cyclictest1133181-21kworker/u16:7+events_unbound10:12:365
782761992927,2cyclictest843984-21kworker/u16:0+flush-8:007:52:144
10654892290,1chrt1065418-21irqcore09:22:127
782770992826,1cyclictest1050898-21ssh09:15:077
782765992826,2cyclictest929824-21kworker/u16:1+events_unbound08:33:165
782770992727,0cyclictest0-21swapper/712:07:357
782766992725,2cyclictest753602-21kworker/u16:1+flush-8:008:02:106
782766992725,2cyclictest1413556-21kworker/u16:2+flush-8:012:17:286
782766992725,2cyclictest1133181-21kworker/u16:7+events_unbound11:01:576
782765992725,2cyclictest843984-21kworker/u16:0+events_unbound08:06:415
782765992724,2cyclictest929824-21kworker/u16:1+flush-8:008:21:565
782761992723,3cyclictest843984-21kworker/u16:0+flush-8:008:27:064
782770992625,0cyclictest0-21swapper/708:37:207
782770992625,0cyclictest0-21swapper/708:20:477
782770992625,0cyclictest0-21swapper/707:45:427
782765992624,2cyclictest968181-21kworker/u16:3+events_unbound08:59:465
782765992624,2cyclictest843984-21kworker/u16:0+events_unbound08:19:215
782765992624,2cyclictest769949-21kworker/u16:3+events_unbound07:24:595
782765992624,2cyclictest753602-21kworker/u16:1+events_unbound07:31:075
782770992524,0cyclictest0-21swapper/707:54:107
782770992520,4cyclictest901115-21latency_hist08:01:557
782770992519,5cyclictest815125-21latency_hist07:16:557
782770992519,5cyclictest815125-21latency_hist07:16:557
782766992523,2cyclictest1340205-21kworker/u16:3+events_unbound11:37:176
782765992523,2cyclictest968181-21kworker/u16:3+events_unbound09:47:125
782765992523,2cyclictest891267-21kworker/u16:2+events_unbound07:54:325
782761992523,2cyclictest782543-21kworker/u16:2+events_unbound07:03:144
782766992423,1cyclictest1434523-21kworker/u16:1+events_unbound12:02:186
782765992422,2cyclictest891267-21kworker/u16:2+flush-8:008:53:105
782765992422,2cyclictest843984-21kworker/u16:0+events_unbound08:10:085
782765992422,2cyclictest1232365-21kworker/u16:1+flush-8:010:32:145
782770992322,0cyclictest0-21swapper/709:01:147
782766992321,2cyclictest929824-21kworker/u16:1+flush-8:008:21:556
782766992321,2cyclictest891267-21kworker/u16:2+flush-8:008:47:386
782765992321,2cyclictest968181-21kworker/u16:3+flush-8:009:07:145
782765992321,2cyclictest843984-21kworker/u16:0+events_unbound08:16:175
782765992321,2cyclictest843984-21kworker/u16:0+events_unbound07:39:175
782765992321,2cyclictest769949-21kworker/u16:3+events_unbound07:51:165
782765992321,2cyclictest1413556-21kworker/u16:2+events_unbound12:12:345
782765992321,2cyclictest1133181-21kworker/u16:7+events_unbound09:57:105
782765992321,2cyclictest1133181-21kworker/u16:7+events_unbound09:57:105
782765992320,2cyclictest1062064-21kworker/u16:2+flush-8:010:41:595
782766992221,1cyclictest1062064-21kworker/u16:2+events_unbound10:26:056
782766992220,2cyclictest1280119-21kworker/u16:0+events_unbound11:07:236
782765992220,2cyclictest843984-21kworker/u16:0+events_unbound08:00:085
782765992220,2cyclictest769949-21kworker/u16:3+events_unbound07:12:505
782765992220,2cyclictest769949-21kworker/u16:3+events_unbound07:12:505
782765992220,2cyclictest1280119-21kworker/u16:0+events_unbound10:56:505
782761992220,2cyclictest843984-21kworker/u16:0+events_unbound08:04:064
782770992115,5cyclictest650-21systemd-journal11:16:557
782766992119,2cyclictest1232365-21kworker/u16:1+flush-8:010:47:246
782765992119,2cyclictest1133181-21kworker/u16:7+events_unbound10:02:305
782761992119,2cyclictest753602-21kworker/u16:1+events_unbound07:07:064
782761992118,2cyclictest891267-21kworker/u16:2+flush-8:008:52:184
13319142210,1sleep50-21swapper/511:12:145
782770992019,0cyclictest0-21swapper/708:44:387
782765992018,2cyclictest753602-21kworker/u16:1+events_unbound07:03:285
12627742200,1sleep60-21swapper/610:42:186
782770991918,0cyclictest0-21swapper/707:05:337
782766991917,2cyclictest1340205-21kworker/u16:3+flush-8:011:51:506
782766991917,2cyclictest1062064-21kworker/u16:2+events_unbound09:21:556
782766991917,2cyclictest1062064-21kworker/u16:2+events_unbound09:21:556
782766991916,2cyclictest753602-21kworker/u16:1+events_unbound07:32:096
782765991917,2cyclictest929824-21kworker/u16:1+events_unbound08:51:205
782765991917,2cyclictest929824-21kworker/u16:1+events_unbound08:44:005
782765991917,2cyclictest1434523-21kworker/u16:1+events_unbound11:57:585
782765991917,2cyclictest1434523-21kworker/u16:1+events_unbound11:57:585
782765991917,2cyclictest1062064-21kworker/u16:2+flush-8:009:42:385
782761991917,2cyclictest769949-21kworker/u16:3+events_unbound07:36:064
782770991815,2cyclictest1097455-21ssh09:32:287
782766991816,2cyclictest769949-21kworker/u16:3+events_unbound07:22:136
782766991816,2cyclictest1232365-21kworker/u16:1+events_unbound10:34:416
782766991816,2cyclictest1133181-21kworker/u16:7+flush-8:009:57:096
782766991816,2cyclictest1133181-21kworker/u16:7+flush-8:009:57:096
782766991816,2cyclictest1062064-21kworker/u16:2+events_unbound10:29:056
782765991816,2cyclictest1460317-21kworker/u16:0+events_unbound12:22:435
782765991816,2cyclictest1413556-21kworker/u16:2+events_unbound11:53:055
782765991816,2cyclictest1340205-21kworker/u16:3+events_unbound11:39:055
782761991816,2cyclictest929824-21kworker/u16:1+flush-8:008:22:144
782770991716,0cyclictest0-21swapper/708:27:227
782766991715,2cyclictest769949-21kworker/u16:3+flush-8:007:21:556
782766991715,2cyclictest1363143-21kworker/u16:0+events_unbound11:25:066
782766991715,2cyclictest1133181-21kworker/u16:7+events_unbound11:19:306
782766991715,2cyclictest1062064-21kworker/u16:2+events_unbound10:15:556
782765991715,2cyclictest1413556-21kworker/u16:2+events_unbound12:03:465
782765991715,2cyclictest1363143-21kworker/u16:0+flush-8:011:32:475
782765991715,2cyclictest1133181-21kworker/u16:7+events_unbound11:21:595
782765991715,2cyclictest1112008-21kworker/u16:4+events_unbound10:18:385
782770991610,5cyclictest650-21systemd-journal10:16:557
782766991614,2cyclictest843984-21kworker/u16:0+events_unbound07:42:256
782766991614,2cyclictest1133181-21kworker/u16:7+events_unbound10:02:226
782765991614,2cyclictest968181-21kworker/u16:3+events_unbound09:22:115
782765991614,2cyclictest843984-21kworker/u16:0+events_unbound07:42:525
782765991614,2cyclictest1340205-21kworker/u16:3+events_unbound11:46:265
782765991614,2cyclictest1133181-21kworker/u16:7+events_unbound11:09:035
782765991614,2cyclictest1062064-21kworker/u16:2+flush-8:010:26:555
78277099159,6cyclictest1060-21runrttasks10:47:547
78277099158,6cyclictest0-21swapper/712:02:207
78277099151,12cyclictest5436-21crond12:21:557
782766991513,2cyclictest843984-21kworker/u16:0+flush-8:008:32:216
782765991514,1cyclictest0-21swapper/511:19:415
782765991513,2cyclictest968181-21kworker/u16:3+events_unbound09:02:425
782765991513,2cyclictest1280119-21kworker/u16:0+events_unbound11:02:595
782765991513,2cyclictest1062064-21kworker/u16:2+events_unbound10:11:535
782765991513,2cyclictest1016538-21kworker/u16:0+events_unbound09:32:345
78277099147,6cyclictest0-21swapper/711:32:107
78277099146,7cyclictest0-21swapper/710:22:057
78277099145,8cyclictest955-21in:imjournal10:08:027
78277099145,8cyclictest1238-21tuned-ppd09:05:327
78277099145,8cyclictest0-21swapper/711:07:597
782766991412,2cyclictest929824-21kworker/u16:1+events_unbound09:08:466
78276699140,14cyclictest0-21swapper/612:25:026
78276699140,13cyclictest0-21swapper/612:26:566
782765991413,1cyclictest0-21swapper/512:07:085
782765991412,2cyclictest1413556-21kworker/u16:2+events_unbound12:20:335
782765991412,2cyclictest1232365-21kworker/u16:1+events_unbound10:47:585
78276599140,1cyclictest0-21swapper/511:29:375
782761991412,2cyclictest843984-21kworker/u16:0+events_unbound08:35:214
78277099138,4cyclictest844729-21tune2fs07:32:097
78277099136,6cyclictest0-21swapper/712:18:237
78277099135,7cyclictest0-21swapper/711:59:047
78277099135,7cyclictest0-21swapper/711:59:047
78277099135,7cyclictest0-21swapper/709:27:277
782766991312,1cyclictest0-21swapper/609:48:486
782766991312,1cyclictest0-21swapper/608:45:166
782766991311,2cyclictest1413556-21kworker/u16:2+events_unbound12:07:256
782765991311,2cyclictest1508267-21kworker/u16:1+events_unbound12:30:505
782765991311,2cyclictest1280119-21kworker/u16:0+events_unbound11:01:455
782761991311,2cyclictest929824-21kworker/u16:1+events_unbound08:38:134
782766991211,1cyclictest0-21swapper/610:21:076
782766991211,1cyclictest0-21swapper/607:52:186
78276599120,0cyclictest0-21swapper/510:31:175
78276699119,2cyclictest929824-21kworker/u16:1+flush-8:008:41:556
78276699119,2cyclictest753602-21kworker/u16:1+flush-8:007:12:126
78276699119,2cyclictest753602-21kworker/u16:1+flush-8:007:12:126
78276699119,2cyclictest1363143-21kworker/u16:0+events_unbound11:36:546
78276699119,2cyclictest1062064-21kworker/u16:2+events_unbound09:41:436
782766991110,1cyclictest0-21swapper/611:16:276
782766991110,1cyclictest0-21swapper/608:59:276
78276699110,11cyclictest0-21swapper/607:50:246
78276599119,2cyclictest1133181-21kworker/u16:7+events_unbound09:52:155
78276599119,2cyclictest1062064-21kworker/u16:2+events_unbound09:29:315
78276599119,2cyclictest1062064-21kworker/u16:2+events_unbound09:21:105
78276599119,2cyclictest1062064-21kworker/u16:2+events_unbound09:21:105
78276699109,1cyclictest0-21swapper/608:27:376
78276699109,1cyclictest0-21swapper/607:37:106
78276699100,0cyclictest0-21swapper/608:08:226
78276599108,2cyclictest1062064-21kworker/u16:2+flush-8:010:38:245
7827669986,2cyclictest929824-21kworker/u16:1+flush-8:009:02:366
7827669980,2cyclictest0-21swapper/607:02:166
7827669976,1cyclictest0-21swapper/608:22:246
7827669976,1cyclictest0-21swapper/608:16:346
7827669950,5cyclictest0-21swapper/607:26:596
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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