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2025-12-06 - 17:32
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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 Sat Dec 06, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
412617199530,51cyclictest541912-21latency_hist20:22:357
412569725343,7sleep40-21swapper/415:21:014
412556625116,30sleep70-21swapper/715:19:127
4126161995048,2cyclictest360144-21kworker/u16:0+events_unbound19:23:494
4126171994944,4cyclictest589235-21systemd-journal17:32:367
412551924635,8sleep60-21swapper/615:18:306
4126161994543,2cyclictest360144-21kworker/u16:0+events_unbound19:31:184
4126161994542,3cyclictest340121-21kworker/u16:1+flush-8:018:42:354
4126171994439,4cyclictest572111-21latency_hist20:37:347
4126170994442,2cyclictest279587-21kworker/u16:5+events_unbound18:13:046
4126161994341,2cyclictest98922-21kworker/u16:3+flush-8:016:48:024
412565124333,7sleep50-21swapper/515:20:225
4126171994236,5cyclictest309806-21latency_hist18:27:357
4126170994240,2cyclictest107900-21kworker/u16:4+events_unbound16:49:576
4126161994240,2cyclictest510755-21kworker/u16:4+events_unbound20:50:194
4126171994136,4cyclictest4180523-21latency_hist15:47:367
4126170994038,2cyclictest400427-21kworker/u16:4+events_unbound19:35:266
4126170994038,2cyclictest16039-21kworker/u16:4+events_unbound16:17:386
4126170994038,2cyclictest16039-21kworker/u16:4+events_unbound16:17:386
4126161994038,2cyclictest510755-21kworker/u16:4+events_unbound20:11:184
4126161994038,2cyclictest471033-21kworker/u16:4+events_unbound19:48:014
4126161994037,2cyclictest4095568-21kworker/u16:2+events_unbound15:57:384
4126161993936,2cyclictest178553-21kworker/u16:1+flush-8:017:52:584
4126161993936,2cyclictest157565-21kworker/u16:6+flush-8:017:13:064
4126170993836,2cyclictest4170401-21kworker/u16:0+flush-8:017:00:226
4126166993835,2cyclictest179096-21kworker/u16:3+events_unbound17:37:595
4126161993836,2cyclictest4095568-21kworker/u16:2+events_unbound16:11:194
4126171993732,4cyclictest299704-21latency_hist18:22:357
4126170993735,2cyclictest4095568-21kworker/u16:2+flush-8:015:23:026
4126170993734,2cyclictest208895-21kworker/u16:0+events_unbound17:37:386
4126161993735,2cyclictest4170401-21kworker/u16:0+events_unbound16:37:224
4126170993634,2cyclictest481425-21kworker/u16:2+events_unbound19:55:206
4126170993634,2cyclictest340121-21kworker/u16:1+events_unbound18:49:216
4126170993633,2cyclictest179096-21kworker/u16:3+events_unbound17:52:466
4126170993633,2cyclictest107900-21kworker/u16:4+events_unbound17:07:386
4126161993634,2cyclictest4140485-21kworker/u16:1+events_unbound15:44:194
4126161993632,3cyclictest400427-21kworker/u16:4+flush-8:019:17:354
4126171993529,5cyclictest229047-21latency_hist17:47:357
4126170993533,2cyclictest4105602-21kworker/u16:3+events_unbound15:54:216
4126170993532,2cyclictest4170401-21kworker/u16:0+events_unbound16:07:386
4126161993533,2cyclictest279587-21kworker/u16:5+events_unbound18:17:304
4126171993433,0cyclictest0-21swapper/718:51:187
4126170993432,2cyclictest4140485-21kworker/u16:1+events_unbound16:02:356
4126170993432,2cyclictest360144-21kworker/u16:0+events_unbound19:42:506
4126166993429,4cyclictest319621-21packagekitd18:28:585
4126161993432,2cyclictest501545-21kworker/u16:3+events_unbound20:33:004
4126161993432,2cyclictest481151-21kworker/u16:1+events_unbound20:28:264
4126161993432,2cyclictest4170401-21kworker/u16:0+events_unbound16:23:064
4126161993432,2cyclictest309475-21kworker/u16:2+events_unbound18:35:194
4126161993432,2cyclictest309475-21kworker/u16:2+events_unbound18:35:194
4126161993432,2cyclictest259401-21kworker/u16:3+events_unbound18:05:504
5523532330,0sleep7552354-21cat20:27:357
4126170993331,2cyclictest481151-21kworker/u16:1+events_unbound19:57:376
4126170993331,2cyclictest400427-21kworker/u16:4+events_unbound19:32:196
4126170993330,2cyclictest279587-21kworker/u16:5+events_unbound19:07:556
4126161993331,2cyclictest179096-21kworker/u16:3+events_unbound17:38:034
4126161993329,2cyclictest4170401-21kworker/u16:0+events_unbound16:22:354
4126161993329,2cyclictest4170401-21kworker/u16:0+events_unbound16:22:354
4126171993231,0cyclictest0-21swapper/719:17:397
4126170993230,2cyclictest98922-21kworker/u16:3+events_unbound17:06:206
4126170993230,2cyclictest98922-21kworker/u16:3+events_unbound17:06:206
4126170993230,2cyclictest510755-21kworker/u16:4+flush-8:020:15:386
4126170993230,2cyclictest481151-21kworker/u16:1+events_unbound20:05:186
4126170993230,2cyclictest259401-21kworker/u16:3+events_unbound18:06:276
4126171993126,4cyclictest27068-21latency_hist16:07:357
4126170993129,2cyclictest581996-21kworker/u16:0+events_unbound20:42:366
4126170993129,2cyclictest501545-21kworker/u16:3+flush-8:020:21:336
4126170993129,2cyclictest299449-21kworker/u16:0+events_unbound18:40:266
4126170993129,2cyclictest249167-21kworker/u16:2+events_unbound17:59:476
4126170993129,2cyclictest149322-21kworker/u16:2+events_unbound17:17:206
4126170993128,2cyclictest57480-21kworker/u16:3+events_unbound16:22:496
4126170993127,3cyclictest259402-21kworker/u16:4+flush-8:018:29:026
4126161993129,2cyclictest501545-21kworker/u16:3+events_unbound20:26:374
4126161993129,2cyclictest501545-21kworker/u16:3+events_unbound20:22:194
4126161993129,2cyclictest4170401-21kworker/u16:0+events_unbound16:03:474
4126171993025,4cyclictest118091-21latency_hist16:52:357
4126170993028,2cyclictest77732-21kworker/u16:2+events_unbound16:45:546
4126170993028,2cyclictest501545-21kworker/u16:3+flush-8:020:12:186
4126170993028,2cyclictest501545-21kworker/u16:3+events_unbound20:37:236
4126170993028,2cyclictest4140485-21kworker/u16:1+events_unbound15:41:216
4126170993028,2cyclictest360144-21kworker/u16:0+flush-8:019:01:346
4126170993028,2cyclictest178553-21kworker/u16:1+events_unbound18:20:206
4126170993028,2cyclictest178553-21kworker/u16:1+events_unbound17:32:276
4126166993028,2cyclictest107900-21kworker/u16:4+events_unbound16:58:155
4126161993028,2cyclictest400427-21kworker/u16:4+events_unbound19:19:214
4126161993028,2cyclictest400412-21kworker/u16:3+events_unbound19:43:514
4126161993028,2cyclictest400412-21kworker/u16:3+events_unbound19:40:334
4126171992928,0cyclictest0-21swapper/717:55:197
4126171992923,5cyclictest589235-21systemd-journal17:48:197
4126171992923,5cyclictest589235-21systemd-journal17:48:197
4126170992927,2cyclictest57480-21kworker/u16:3+events_unbound16:34:306
4126170992927,2cyclictest360144-21kworker/u16:0+events_unbound19:07:206
4126170992927,2cyclictest340121-21kworker/u16:1+flush-8:018:43:016
4126170992927,2cyclictest309475-21kworker/u16:2+events_unbound18:34:186
4126170992927,2cyclictest309475-21kworker/u16:2+events_unbound18:34:186
4126166992927,2cyclictest77732-21kworker/u16:2+events_unbound16:38:035
4126166992927,2cyclictest450868-21kworker/u16:1+flush-8:019:38:155
4126161992927,2cyclictest481425-21kworker/u16:2+flush-8:019:55:334
4126161992927,2cyclictest157565-21kworker/u16:6+flush-8:017:10:224
4126161992927,2cyclictest128282-21kworker/u16:5+events_unbound17:28:014
4126171992828,0cyclictest0-21swapper/718:36:197
4126171992828,0cyclictest0-21swapper/718:36:197
4126171992827,0cyclictest0-21swapper/717:23:357
4126171992823,4cyclictest481448-21latency_hist19:52:347
4126170992826,2cyclictest400427-21kworker/u16:4+flush-8:019:16:356
4126170992826,2cyclictest400427-21kworker/u16:4+events_unbound19:18:386
4126170992826,2cyclictest360144-21kworker/u16:0+flush-8:019:23:066
4126170992826,2cyclictest279587-21kworker/u16:5+events_unbound18:23:456
4126161992826,2cyclictest98922-21kworker/u16:3+events_unbound17:07:264
4126161992826,2cyclictest98922-21kworker/u16:3+events_unbound17:07:264
4126161992826,2cyclictest481425-21kworker/u16:2+flush-8:020:02:504
4126161992826,2cyclictest4095568-21kworker/u16:2+events_unbound15:53:064
4126170992725,2cyclictest98922-21kworker/u16:3+flush-8:016:55:316
4126170992725,2cyclictest481151-21kworker/u16:1+events_unbound19:51:186
4126170992725,2cyclictest208895-21kworker/u16:0+flush-8:017:37:306
4126161992725,2cyclictest98922-21kworker/u16:3+events_unbound16:46:264
4126161992725,2cyclictest501545-21kworker/u16:3+events_unbound20:44:024
4126161992725,2cyclictest4140485-21kworker/u16:1+events_unbound16:31:034
4126161992725,2cyclictest208895-21kworker/u16:0+events_unbound17:36:354
4126161992724,2cyclictest309475-21kworker/u16:2+flush-8:018:27:364
412617199260,24cyclictest589235-21systemd-journal16:44:197
4126170992624,2cyclictest510755-21kworker/u16:4+events_unbound20:49:366
4126170992624,2cyclictest4140485-21kworker/u16:1+events_unbound15:52:186
4126170992624,2cyclictest360144-21kworker/u16:0+flush-8:019:39:496
4126170992624,2cyclictest360144-21kworker/u16:0+events_unbound20:25:466
4126170992624,2cyclictest178553-21kworker/u16:1+events_unbound17:21:346
4126170992623,2cyclictest178553-21kworker/u16:1+events_unbound17:47:366
4126170992623,2cyclictest178553-21kworker/u16:1+events_unbound17:47:366
4126161992624,2cyclictest4170401-21kworker/u16:0+events_unbound16:38:114
4126161992624,2cyclictest4095568-21kworker/u16:2+events_unbound15:36:554
4126161992624,2cyclictest4095568-21kworker/u16:2+events_unbound15:36:554
4126161992624,2cyclictest279587-21kworker/u16:5+events_unbound18:24:264
4126161992624,2cyclictest179096-21kworker/u16:3+flush-8:017:51:464
4126161992624,2cyclictest179096-21kworker/u16:3+flush-8:017:51:464
4126161992624,2cyclictest178553-21kworker/u16:1+flush-8:017:24:224
4126161992623,3cyclictest360144-21kworker/u16:0+flush-8:018:54:144
4126171992525,0cyclictest0-21swapper/719:04:267
4126171992524,0cyclictest0-21swapper/720:03:057
4126170992523,2cyclictest77732-21kworker/u16:2+events_unbound16:40:146
4126170992523,2cyclictest481151-21kworker/u16:1+flush-8:020:29:176
4126170992523,2cyclictest360144-21kworker/u16:0+events_unbound18:53:476
4126170992523,2cyclictest259402-21kworker/u16:4+events_unbound18:10:356
4126166992523,2cyclictest128282-21kworker/u16:5+flush-8:017:07:515
4126171992418,5cyclictest589235-21systemd-journal18:52:367
4126166992422,2cyclictest98922-21kworker/u16:3+events_unbound17:03:045
4126166992422,2cyclictest98922-21kworker/u16:3+events_unbound17:03:045
4126166992422,2cyclictest259402-21kworker/u16:4+flush-8:018:17:355
4126166992422,2cyclictest178553-21kworker/u16:1+events_unbound17:52:505
4126161992422,2cyclictest370452-21kworker/u16:1+events_unbound19:04:204
4126161992422,2cyclictest259401-21kworker/u16:3+events_unbound18:11:034
4126161992422,2cyclictest16039-21kworker/u16:4+events_unbound16:13:044
4126161992422,2cyclictest107900-21kworker/u16:4+flush-8:016:53:274
4126171992322,0cyclictest0-21swapper/716:01:027
4126170992321,2cyclictest4095568-21kworker/u16:2+flush-8:015:35:206
4126170992321,2cyclictest4095568-21kworker/u16:2+flush-8:015:35:206
4126170992321,2cyclictest16039-21kworker/u16:4+flush-8:016:13:066
4126166992321,2cyclictest4170401-21kworker/u16:0+flush-8:016:28:025
4126161992321,2cyclictest510755-21kworker/u16:4+events_unbound20:38:304
4126161992321,2cyclictest4140485-21kworker/u16:1+events_unbound15:48:004
4126161992321,2cyclictest340121-21kworker/u16:1+events_unbound18:48:444
4126161992321,2cyclictest309475-21kworker/u16:2+flush-8:018:43:024
4126171992217,4cyclictest340262-21latency_hist18:42:357
4126170992220,2cyclictest4140485-21kworker/u16:1+events_unbound15:45:196
4126166992220,2cyclictest98922-21kworker/u16:3+events_unbound16:43:025
4126166992220,2cyclictest400412-21kworker/u16:3+events_unbound19:23:045
4126171992120,0cyclictest0-21swapper/718:09:217
4126171992120,0cyclictest0-21swapper/717:09:067
4126171992117,2cyclictest27944-21gnome-software18:29:087
4126166992118,2cyclictest481425-21kworker/u16:2+flush-8:019:52:515
4126161992119,2cyclictest481425-21kworker/u16:2+events_unbound19:59:214
4126161992119,2cyclictest4105602-21kworker/u16:3+events_unbound15:30:484
4126171992020,0cyclictest0-21swapper/719:01:187
4126171992015,4cyclictest4190605-21latency_hist15:52:367
4126170992018,2cyclictest481151-21kworker/u16:1+events_unbound20:41:026
4126170992018,2cyclictest4105602-21kworker/u16:3+events_unbound15:31:486
4126170992018,2cyclictest179096-21kworker/u16:3+flush-8:017:26:226
4126170992018,2cyclictest179096-21kworker/u16:3+events_unbound17:44:186
4126170992017,2cyclictest4170401-21kworker/u16:0+events_unbound16:03:426
4126166992018,2cyclictest400427-21kworker/u16:4+events_unbound19:17:555
4126161992018,2cyclictest400427-21kworker/u16:4+events_unbound19:33:514
4126161992018,2cyclictest309475-21kworker/u16:2+events_unbound18:59:314
4126171991918,0cyclictest0-21swapper/716:08:077
4126171991913,5cyclictest289675-21latency_hist18:17:367
4126166991917,2cyclictest481151-21kworker/u16:1+flush-8:020:07:505
4126166991917,2cyclictest4095568-21kworker/u16:2+flush-8:015:37:595
4126166991916,2cyclictest107900-21kworker/u16:4+flush-8:016:52:555
4126166991915,3cyclictest4095568-21kworker/u16:2+flush-8:016:17:495
4126166991915,3cyclictest4095568-21kworker/u16:2+flush-8:016:17:495
4126171991816,1cyclictest0-21swapper/718:03:057
4126171991815,2cyclictest4175659-21snmpd19:25:177
412617199180,16cyclictest4175659-21snmpd20:08:007
4126166991815,2cyclictest400412-21kworker/u16:3+flush-8:019:37:355
4126166991815,2cyclictest340121-21kworker/u16:1+flush-8:018:42:515
4126161991816,2cyclictest360144-21kworker/u16:0+events_unbound20:15:224
4126161991816,2cyclictest309475-21kworker/u16:2+events_unbound19:09:544
4126161991816,2cyclictest279587-21kworker/u16:5+events_unbound18:22:334
4126161991816,2cyclictest249167-21kworker/u16:2+flush-8:017:58:054
4126171991716,0cyclictest0-21swapper/715:53:017
4126171991711,5cyclictest47509-21latency_hist16:17:357
412617199170,16cyclictest57543-21latency_hist16:22:357
412617199170,16cyclictest57543-21latency_hist16:22:357
4126166991715,2cyclictest481151-21kworker/u16:1+events_unbound20:38:045
4126166991715,2cyclictest178553-21kworker/u16:1+flush-8:018:22:595
4126166991715,2cyclictest157565-21kworker/u16:6+events_unbound17:12:525
4126161991715,2cyclictest98922-21kworker/u16:3+events_unbound17:00:344
4126161991715,2cyclictest4140485-21kworker/u16:1+events_unbound15:40:544
4126161991715,2cyclictest4095568-21kworker/u16:2+flush-8:015:23:174
4126171991615,0cyclictest0-21swapper/720:38:017
4126171991611,4cyclictest350365-21latency_hist18:47:357
4126171991610,5cyclictest531849-21latency_hist20:17:357
4126170991614,2cyclictest57480-21kworker/u16:3+events_unbound16:30:206
4126166991613,2cyclictest360144-21kworker/u16:0+flush-8:019:57:535
4126161991614,2cyclictest128282-21kworker/u16:5+flush-8:017:18:064
412617199159,5cyclictest589235-21systemd-journal15:27:357
4126171991510,4cyclictest178698-21latency_hist17:22:367
4126166991512,3cyclictest179096-21kworker/u16:3+flush-8:017:27:365
4126166991512,2cyclictest481151-21kworker/u16:1+flush-8:019:51:265
4126166991512,2cyclictest4105602-21kworker/u16:3+flush-8:015:42:545
4126166991511,3cyclictest319711-21kworker/u16:3+flush-8:018:47:505
4126161991513,2cyclictest188535-21kworker/u16:4+flush-8:017:42:554
4126171991412,1cyclictest0-21swapper/716:33:017
412617199140,1cyclictest0-21swapper/720:48:167
412617199140,1cyclictest0-21swapper/717:58:027
4126166991412,1cyclictest86633-21latency16:32:585
4126166991411,3cyclictest510755-21kworker/u16:4+events_unbound20:27:495
412616699140,14cyclictest0-21swapper/515:26:455
412617199138,4cyclictest984960-21gvfsd-wsdd19:08:027
4126171991313,0cyclictest0-21swapper/717:14:347
4126171991310,2cyclictest410022-21sendmail_mailqu19:13:047
412617199130,12cyclictest77754-21turbostat16:32:357
4126166991312,1cyclictest0-21swapper/516:22:525
4126166991311,2cyclictest4140485-21kworker/u16:1+flush-8:016:08:025
4126166991311,2cyclictest179096-21kworker/u16:3+events_unbound17:33:045
412616699130,6cyclictest0-21swapper/518:17:385
412616699130,13cyclictest0-21swapper/520:44:435
412617199129,2cyclictest4175659-21snmpd19:33:087
412617199129,2cyclictest4175659-21snmpd16:57:557
412617199127,4cyclictest589235-21systemd-journal19:53:187
412617199127,4cyclictest589235-21systemd-journal16:52:367
412617199127,4cyclictest589235-21systemd-journal15:32:187
412617199125,6cyclictest0-21swapper/717:33:197
4126171991211,0cyclictest0-21swapper/719:38:167
412617199120,11cyclictest0-21swapper/720:28:007
412617199120,10cyclictest0-21swapper/719:27:597
412616699129,3cyclictest360144-21kworker/u16:0+flush-8:019:29:175
4126166991211,1cyclictest0-21swapper/520:22:015
4126166991211,1cyclictest0-21swapper/517:20:345
4126166991210,2cyclictest4105602-21kworker/u16:3+events_unbound15:27:405
4126166991210,2cyclictest400412-21kworker/u16:3+flush-8:019:42:495
4126166991210,2cyclictest309475-21kworker/u16:2+events_unbound18:33:005
4126166991210,2cyclictest309475-21kworker/u16:2+events_unbound18:33:005
4126166991210,2cyclictest16039-21kworker/u16:4+flush-8:015:58:045
412616699120,12cyclictest0-21swapper/518:40:495
412616699120,12cyclictest0-21swapper/517:43:545
412616699120,0cyclictest0-21swapper/517:48:095
412616699120,0cyclictest0-21swapper/517:48:095
412617199118,2cyclictest4175659-21snmpd19:58:517
412617199118,2cyclictest4175659-21snmpd19:42:477
412617199118,2cyclictest4175659-21snmpd16:24:187
412617199115,5cyclictest27642-21gmain20:42:457
4126166991110,1cyclictest0-21swapper/520:37:095
4126166991110,1cyclictest0-21swapper/517:59:115
4126166991110,1cyclictest0-21swapper/516:12:475
4126166991110,1cyclictest0-21swapper/515:53:045
412616699110,1cyclictest0-21swapper/515:50:335
412616699110,11cyclictest0-21swapper/520:27:045
412616699110,11cyclictest0-21swapper/518:11:015
412616699110,10cyclictest0-21swapper/520:48:045
412617199107,2cyclictest4175659-21snmpd16:40:047
412617199103,6cyclictest0-21swapper/715:37:497
412617199100,9cyclictest0-21swapper/717:03:057
412617199100,9cyclictest0-21swapper/717:03:057
412617199100,2cyclictest0-21swapper/717:37:527
412616699109,1cyclictest0-21swapper/520:02:575
412616699109,1cyclictest0-21swapper/518:59:155
412616699109,1cyclictest0-21swapper/515:37:195
412616699109,1cyclictest0-21swapper/515:37:195
412616699108,2cyclictest279587-21kworker/u16:5+flush-8:019:07:565
41261719994,4cyclictest589235-21systemd-journal15:32:367
41261719994,4cyclictest589235-21systemd-journal15:32:367
41261669998,1cyclictest0-21swapper/518:53:255
41261669998,1cyclictest0-21swapper/518:03:275
41261669998,1cyclictest0-21swapper/516:51:245
41261669997,2cyclictest4095568-21kworker/u16:2+flush-8:016:03:015
41261669985,2cyclictest0-21swapper/520:12:555
41261669983,4cyclictest386269-21cut19:02:575
41261669973,3cyclictest405729-21cut19:12:565
41261669961,2cyclictest0-21swapper/517:28:105
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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