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2026-08-12 - 15:20
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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 Wed Aug 12, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8129221540,1sleep781291-21ssh10:38:337
2246882980,0sleep50-21swapper/511:38:265
2754482630,1sleep40-21swapper/411:58:294
2754482630,1sleep40-21swapper/411:58:294
3807295995553,2cyclictest48041-21kworker/u16:0+events_unbound10:33:325
380693525545,7sleep50-21swapper/507:07:095
3807295995048,2cyclictest4093506-21kworker/u16:4+events_unbound09:33:385
3807295994947,2cyclictest4044651-21kworker/u16:0+events_unbound09:38:205
3807303994842,5cyclictest3879018-21latency_hist07:43:057
3807295994846,2cyclictest4183213-21kworker/u16:2+events_unbound10:53:205
3807295994745,2cyclictest4044651-21kworker/u16:0+events_unbound10:08:315
3807295994745,2cyclictest121295-21kworker/u16:4+flush-8:011:22:425
3807299994643,2cyclictest192040-21kworker/u16:1+events_unbound11:48:336
3807295994643,3cyclictest4183213-21kworker/u16:2+flush-8:010:48:395
380699024636,7sleep40-21swapper/407:07:564
3807299994543,2cyclictest192040-21kworker/u16:1+events_unbound12:28:376
3807295994543,2cyclictest192040-21kworker/u16:1+events_unbound12:18:395
3807295994543,2cyclictest11169-21kworker/u16:3+flush-8:010:23:405
41613322440,0sleep50-21swapper/509:53:275
41613322440,0sleep50-21swapper/509:53:275
3807295994442,2cyclictest4093506-21kworker/u16:4+events_unbound09:58:395
3807295994442,2cyclictest192040-21kworker/u16:1+events_unbound12:33:305
3807295994341,2cyclictest192040-21kworker/u16:1+events_unbound12:28:275
3807299994138,2cyclictest3859977-21kworker/u16:0+events_unbound07:33:196
38066982416,30sleep70-21swapper/707:03:507
3807295994038,2cyclictest48041-21kworker/u16:0+flush-8:010:38:355
3807295994038,2cyclictest192040-21kworker/u16:1+flush-8:011:33:385
3807299993937,2cyclictest82147-21kworker/u16:1+events_unbound11:03:346
3807299993937,2cyclictest3778349-21kworker/u16:3+flush-8:007:23:306
3807303993831,5cyclictest977-21in:imjournal12:28:057
3807299993836,2cyclictest3937050-21kworker/u16:0+events_unbound08:38:346
3807295993836,2cyclictest4060302-21kworker/u16:3+events_unbound09:23:075
3807295993836,2cyclictest232061-21kworker/u16:2+events_unbound12:13:365
3807295993835,2cyclictest3917590-21kworker/u16:3+events_unbound08:38:205
3807299993735,2cyclictest4044651-21kworker/u16:0+events_unbound09:28:356
3807299993735,2cyclictest3937050-21kworker/u16:0+flush-8:008:43:296
3807299993734,2cyclictest232061-21kworker/u16:2+flush-8:011:43:216
3807295993735,2cyclictest82147-21kworker/u16:1+flush-8:011:08:345
3807303993631,4cyclictest59882-21latency_hist10:33:057
3807299993634,2cyclictest4183213-21kworker/u16:2+events_unbound10:48:376
3807299993634,2cyclictest3937050-21kworker/u16:0+flush-8:008:18:396
3807299993634,2cyclictest3937050-21kworker/u16:0+events_unbound08:33:296
3807299993634,2cyclictest192040-21kworker/u16:1+flush-8:012:23:256
3807295993634,2cyclictest4093506-21kworker/u16:4+events_unbound10:03:075
3807295993634,2cyclictest3937050-21kworker/u16:0+events_unbound08:43:355
3807295993634,2cyclictest3937050-21kworker/u16:0+events_unbound08:28:205
3807295993634,2cyclictest192040-21kworker/u16:1+events_unbound12:23:365
3807295993634,2cyclictest167265-21kworker/u16:5+events_unbound11:15:555
3807295993634,2cyclictest158480-21kworker/u16:3+events_unbound11:53:345
3807299993533,2cyclictest4183213-21kworker/u16:2+events_unbound10:16:326
3807299993533,2cyclictest3937050-21kworker/u16:0+flush-8:008:48:346
3807299993533,2cyclictest281417-21kworker/u16:0+events_unbound12:08:256
3807299993533,2cyclictest167265-21kworker/u16:5+events_unbound11:16:426
3807295993533,2cyclictest4118132-21kworker/u16:1+flush-8:009:48:515
3807295993533,2cyclictest3888934-21kworker/u16:1+flush-8:008:08:355
3807295993533,2cyclictest3778349-21kworker/u16:3+events_unbound07:33:235
3807295993533,2cyclictest158480-21kworker/u16:3+events_unbound11:58:195
3807295993533,2cyclictest158480-21kworker/u16:3+events_unbound11:58:195
3807293993533,2cyclictest48041-21kworker/u16:0+flush-8:010:43:314
40651462340,0chrt0-21swapper/609:13:296
40651462340,0chrt0-21swapper/609:13:296
3807299993432,2cyclictest4130412-21kworker/u16:2+events_unbound09:47:236
3807299993432,2cyclictest4118132-21kworker/u16:1+events_unbound10:02:286
3807299993432,2cyclictest3859977-21kworker/u16:0+flush-8:007:53:346
3807299993432,2cyclictest232061-21kworker/u16:2+events_unbound12:19:476
3807299993431,2cyclictest3859977-21kworker/u16:0+events_unbound07:58:226
3807295993432,2cyclictest3917590-21kworker/u16:3+events_unbound08:33:195
3807295993432,2cyclictest3859977-21kworker/u16:0+events_unbound07:38:365
3807293993432,2cyclictest4183213-21kworker/u16:2+flush-8:011:08:474
3807293993431,2cyclictest11169-21kworker/u16:3+flush-8:010:23:054
3807299993331,2cyclictest4118132-21kworker/u16:1+events_unbound10:08:436
3807299993331,2cyclictest4044651-21kworker/u16:0+events_unbound09:33:326
3807299993331,2cyclictest158479-21kworker/u16:0+events_unbound11:25:316
3807295993331,2cyclictest281417-21kworker/u16:0+events_unbound12:08:195
3807295993331,2cyclictest281417-21kworker/u16:0+events_unbound12:07:035
3807299993230,2cyclictest4093506-21kworker/u16:4+flush-8:009:48:346
3807299993230,2cyclictest4060302-21kworker/u16:3+events_unbound09:41:046
3807299993230,2cyclictest121295-21kworker/u16:4+events_unbound11:21:076
3807295993230,2cyclictest82147-21kworker/u16:1+events_unbound10:45:125
3807295993230,2cyclictest4183213-21kworker/u16:2+events_unbound11:03:325
3807295993230,2cyclictest3937050-21kworker/u16:0+events_unbound08:23:235
3807295993230,2cyclictest232061-21kworker/u16:2+flush-8:011:49:305
380693623221,8sleep60-21swapper/607:07:106
3807299993129,2cyclictest4183213-21kworker/u16:2+events_unbound11:10:236
3807299993129,2cyclictest4183213-21kworker/u16:2+events_unbound10:43:226
3807299993129,2cyclictest4118132-21kworker/u16:1+events_unbound10:21:396
3807295993129,2cyclictest4183213-21kworker/u16:2+events_unbound10:59:425
3807295993129,2cyclictest4183213-21kworker/u16:2+events_unbound10:18:315
3807295993129,2cyclictest4183213-21kworker/u16:2+events_unbound10:18:005
3807295993129,2cyclictest4093506-21kworker/u16:4+events_unbound09:31:595
3807295993129,2cyclictest4044651-21kworker/u16:0+flush-8:009:43:445
3807295993129,2cyclictest158479-21kworker/u16:0+flush-8:011:26:595
3807295993128,2cyclictest4060302-21kworker/u16:3+flush-8:009:15:035
3807295993128,2cyclictest4060302-21kworker/u16:3+flush-8:009:15:035
3807295993128,2cyclictest3888934-21kworker/u16:1+flush-8:007:53:195
3807293993129,2cyclictest48041-21kworker/u16:0+flush-8:010:38:004
3807299993028,2cyclictest48041-21kworker/u16:0+events_unbound10:33:566
3807299993028,2cyclictest3806030-21kworker/u16:2+events_unbound09:25:046
3807299993028,2cyclictest232061-21kworker/u16:2+events_unbound12:07:506
3807295993028,2cyclictest4183213-21kworker/u16:2+events_unbound10:28:515
3807295993028,2cyclictest3859977-21kworker/u16:0+flush-8:007:43:395
3807295993028,2cyclictest3806030-21kworker/u16:2+flush-8:007:22:155
3807295993027,2cyclictest232061-21kworker/u16:2+flush-8:011:43:065
232952300,0chrt23293-21latency_hist10:18:067
3807299992927,2cyclictest3917590-21kworker/u16:3+flush-8:008:28:336
3807299992927,2cyclictest3888934-21kworker/u16:1+flush-8:007:48:346
3807299992927,2cyclictest3888934-21kworker/u16:1+flush-8:007:48:346
3807299992927,2cyclictest2329546-21kworker/u16:1+events_unbound07:28:266
3807295992927,2cyclictest3806030-21kworker/u16:2+events_unbound09:09:075
3807303992827,0cyclictest0-21swapper/710:18:107
3807299992826,2cyclictest82147-21kworker/u16:1+flush-8:010:42:006
3807299992826,2cyclictest4183213-21kworker/u16:2+events_unbound10:25:396
3807299992826,2cyclictest4044651-21kworker/u16:0+events_unbound09:21:256
3807299992826,2cyclictest3917590-21kworker/u16:3+events_unbound09:03:256
3807295992826,2cyclictest4044651-21kworker/u16:0+events_unbound09:19:245
3807295992826,2cyclictest3917590-21kworker/u16:3+flush-8:008:58:345
3807295992825,2cyclictest192040-21kworker/u16:1+events_unbound11:28:155
3807299992725,2cyclictest4183213-21kworker/u16:2+events_unbound10:57:236
3807299992725,2cyclictest4015312-21kworker/u16:1+events_unbound09:11:336
3807299992725,2cyclictest158479-21kworker/u16:0+flush-8:011:38:046
3807299992724,2cyclictest4015312-21kworker/u16:1+events_unbound08:58:186
3807295992725,2cyclictest3778349-21kworker/u16:3+events_unbound07:15:405
38481242260,0chrt3844768-21kthreadcore07:23:297
3807299992624,2cyclictest4183213-21kworker/u16:2+flush-8:010:30:556
3807299992624,2cyclictest3778349-21kworker/u16:3+flush-8:007:08:256
3807299992624,2cyclictest158480-21kworker/u16:3+flush-8:011:58:406
3807299992624,2cyclictest158480-21kworker/u16:3+flush-8:011:58:406
3807299992624,2cyclictest158480-21kworker/u16:3+events_unbound11:39:186
3807295992624,2cyclictest3778349-21kworker/u16:3+events_unbound07:23:315
3807299992523,2cyclictest4093506-21kworker/u16:4+events_unbound09:57:586
3807299992523,2cyclictest4093506-21kworker/u16:4+events_unbound09:57:586
3807299992523,2cyclictest3917590-21kworker/u16:3+events_unbound08:08:456
3807299992523,2cyclictest3806030-21kworker/u16:2+events_unbound08:53:296
3807299992523,2cyclictest3778349-21kworker/u16:3+flush-8:007:41:126
3807299992523,2cyclictest192040-21kworker/u16:1+events_unbound11:30:386
3807299992523,2cyclictest158480-21kworker/u16:3+events_unbound11:57:096
3807299992522,2cyclictest3937050-21kworker/u16:0+flush-8:008:23:056
3807295992523,2cyclictest3917590-21kworker/u16:3+events_unbound08:17:165
3807295992523,2cyclictest3888934-21kworker/u16:1+flush-8:008:03:215
3807295992523,2cyclictest3888934-21kworker/u16:1+events_unbound07:49:155
3807295992523,2cyclictest3888934-21kworker/u16:1+events_unbound07:49:155
3807295992523,2cyclictest2329546-21kworker/u16:1+flush-8:007:28:305
3807299992422,2cyclictest192040-21kworker/u16:1+events_unbound12:13:286
3807295992421,2cyclictest3917590-21kworker/u16:3+flush-8:008:48:225
3807303992317,5cyclictest648-21systemd-journal11:53:047
380730399230,21cyclictest280993-21latency_hist12:03:057
380730399230,21cyclictest280993-21latency_hist12:03:057
3807299992321,2cyclictest82147-21kworker/u16:1+events_unbound11:00:136
3807299992321,2cyclictest3937050-21kworker/u16:0+events_unbound08:13:296
3807299992321,2cyclictest3778349-21kworker/u16:3+events_unbound07:20:556
3807299992321,2cyclictest3778349-21kworker/u16:3+events_unbound07:17:476
3807299992220,2cyclictest4044651-21kworker/u16:0+events_unbound10:07:416
3807299992219,2cyclictest3778349-21kworker/u16:3+flush-8:007:43:156
3807295992220,2cyclictest3859977-21kworker/u16:0+flush-8:007:58:405
3807293992220,2cyclictest4093506-21kworker/u16:4+flush-8:009:53:594
3807293992220,2cyclictest4093506-21kworker/u16:4+flush-8:009:53:594
3807295992118,2cyclictest3806030-21kworker/u16:2+events_unbound07:08:075
3807293992119,2cyclictest4183213-21kworker/u16:2+events_unbound10:03:464
3807293992119,2cyclictest3917590-21kworker/u16:3+events_unbound08:38:594
3807293992119,2cyclictest3806030-21kworker/u16:2+events_unbound07:17:144
3807303992014,5cyclictest648-21systemd-journal09:58:057
380730399200,18cyclictest4005402-21latency_hist08:48:057
3807299992018,2cyclictest3888934-21kworker/u16:1+events_unbound08:06:446
3807293992018,2cyclictest48041-21kworker/u16:0+flush-8:010:42:164
3807293992018,2cyclictest4044651-21kworker/u16:0+flush-8:009:23:314
3807293992018,2cyclictest4044651-21kworker/u16:0+flush-8:009:18:444
3807293992018,2cyclictest3937050-21kworker/u16:0+events_unbound08:08:474
3807293992018,2cyclictest3888934-21kworker/u16:1+events_unbound07:57:434
3807293992018,2cyclictest192040-21kworker/u16:1+events_unbound12:11:424
3807293992017,2cyclictest4118132-21kworker/u16:1+events_unbound10:13:154
3807293991917,2cyclictest4118132-21kworker/u16:1+events_unbound10:09:014
3807293991917,2cyclictest4118132-21kworker/u16:1+events_unbound09:52:444
3807293991917,2cyclictest3778349-21kworker/u16:3+events_unbound07:08:124
3807293991916,2cyclictest3937050-21kworker/u16:0+events_unbound08:23:214
3807299991816,2cyclictest192040-21kworker/u16:1+events_unbound12:37:566
3807293991816,2cyclictest3937050-21kworker/u16:0+events_unbound08:36:134
3807293991816,2cyclictest3859977-21kworker/u16:0+flush-8:007:38:064
3807293991816,2cyclictest232061-21kworker/u16:2+flush-8:011:48:364
3807293991816,2cyclictest158480-21kworker/u16:3+flush-8:011:43:054
3807293991816,2cyclictest158479-21kworker/u16:0+events_unbound11:23:484
3807303991715,1cyclictest0-21swapper/711:16:587
380730399170,15cyclictest1302-21snmpd12:30:157
3807293991715,2cyclictest82147-21kworker/u16:1+flush-8:011:17:564
3807293991715,2cyclictest4015312-21kworker/u16:1+events_unbound08:58:304
3807293991715,2cyclictest3859977-21kworker/u16:0+flush-8:007:47:054
3807293991715,2cyclictest3859977-21kworker/u16:0+events_unbound07:58:364
3807293991715,2cyclictest3778349-21kworker/u16:3+flush-8:007:32:144
3807293991715,2cyclictest192040-21kworker/u16:1+flush-8:012:04:524
3807293991715,2cyclictest192040-21kworker/u16:1+events_unbound12:26:024
3807293991715,2cyclictest192040-21kworker/u16:1+events_unbound11:33:204
3807293991714,2cyclictest3888934-21kworker/u16:1+flush-8:007:48:114
3807293991714,2cyclictest3888934-21kworker/u16:1+flush-8:007:48:114
3807293991714,2cyclictest3806030-21kworker/u16:2+events_unbound09:08:064
3807303991613,2cyclictest119852-21ssh10:55:347
380730399160,14cyclictest155978-21rm11:09:177
3807295991614,2cyclictest3917590-21kworker/u16:3+events_unbound09:03:155
3807293991614,2cyclictest3937050-21kworker/u16:0+events_unbound08:47:004
3807293991614,2cyclictest3937050-21kworker/u16:0+events_unbound08:14:144
3807293991614,2cyclictest3917590-21kworker/u16:3+flush-8:008:48:574
3807293991614,2cyclictest3917590-21kworker/u16:3+events_unbound08:55:424
3807293991614,2cyclictest330121-21kworker/u16:3+events_unbound12:28:454
3807303991513,1cyclictest0-21swapper/709:33:357
3807303991513,1cyclictest0-21swapper/709:20:207
3807303991512,2cyclictest303575-21ssh12:09:317
380730399150,13cyclictest4167328-21latency_hist09:58:057
380730399150,13cyclictest4167328-21latency_hist09:58:057
3807293991513,2cyclictest82147-21kworker/u16:1+flush-8:011:03:414
3807293991513,2cyclictest4130412-21kworker/u16:2+flush-8:009:45:364
3807293991513,2cyclictest4093506-21kworker/u16:4+events_unbound09:41:414
3807293991513,2cyclictest3917590-21kworker/u16:3+events_unbound09:07:454
3807303991412,1cyclictest4044261-21diskmemload09:25:427
3807303991412,1cyclictest328853-21ssh12:20:527
3807303991411,2cyclictest0-21swapper/710:23:277
3807303991410,2cyclictest0-21swapper/710:33:347
3807293991413,1cyclictest0-21swapper/410:25:464
3807293991412,2cyclictest4183213-21kworker/u16:2+flush-8:010:54:024
3807293991412,2cyclictest4183213-21kworker/u16:2+events_unbound10:50:384
3807293991412,2cyclictest3937050-21kworker/u16:0+events_unbound08:19:074
3807293991412,2cyclictest3917590-21kworker/u16:3+events_unbound08:29:464
3807293991412,2cyclictest3806030-21kworker/u16:2+flush-8:007:22:204
3807293991412,2cyclictest3778349-21kworker/u16:3+events_unbound07:34:494
3807293991412,2cyclictest192040-21kworker/u16:1+flush-8:011:43:274
3807293991412,2cyclictest192040-21kworker/u16:1+events_unbound12:36:224
3807293991412,2cyclictest158480-21kworker/u16:3+flush-8:011:56:044
3807293991412,2cyclictest158479-21kworker/u16:0+events_unbound11:28:194
3807293991412,2cyclictest158479-21kworker/u16:0+events_unbound11:20:524
3807293991411,2cyclictest4093506-21kworker/u16:4+flush-8:009:33:194
380730399139,3cyclictest1302-21snmpd09:00:397
380730399139,3cyclictest1302-21snmpd08:02:147
380730399139,3cyclictest1302-21snmpd07:28:317
380730399139,3cyclictest1302-21snmpd07:14:257
380730399138,4cyclictest3880206-21cat07:43:227
380730399138,4cyclictest171744-21cat11:18:207
3807303991311,1cyclictest3995695-21munin-run08:43:057
3807303991311,1cyclictest0-21swapper/708:28:257
3807303991310,2cyclictest0-21swapper/709:08:227
3807303991310,2cyclictest0-21swapper/708:13:327
380730399130,2cyclictest194229-21ssh11:26:297
380730399130,12cyclictest3956812-21latency_hist08:23:057
3807293991312,1cyclictest0-21swapper/410:31:364
3807293991311,2cyclictest3917590-21kworker/u16:3+flush-8:008:05:214
3807293991311,2cyclictest232061-21kworker/u16:2+flush-8:012:23:024
3807293991310,2cyclictest4060302-21kworker/u16:3+flush-8:009:28:154
380730399129,2cyclictest1302-21snmpd12:34:037
380730399129,2cyclictest1302-21snmpd09:49:267
380730399129,2cyclictest0-21swapper/708:53:327
380730399128,3cyclictest5834-21gmain07:53:357
380730399128,3cyclictest1302-21snmpd12:04:117
380730399128,3cyclictest1302-21snmpd11:44:417
380730399128,3cyclictest1302-21snmpd10:48:097
380730399128,3cyclictest1302-21snmpd10:03:087
380730399128,3cyclictest1302-21snmpd09:47:417
380730399128,3cyclictest1302-21snmpd08:04:447
380730399128,3cyclictest1302-21snmpd07:48:147
380730399128,3cyclictest1302-21snmpd07:48:147
380730399128,3cyclictest1302-21snmpd07:08:587
380730399127,4cyclictest4006569-21cat08:48:217
380730399127,4cyclictest219660-21latency_hist11:38:057
380730399126,6cyclictest6233-21gvfs-afc-volume11:00:547
380730399125,6cyclictest6050-21gmain11:28:347
3807303991212,0cyclictest0-21swapper/709:14:597
3807303991212,0cyclictest0-21swapper/709:14:597
380730399120,2cyclictest4035745-21iostat_ios09:03:207
380730399120,1cyclictest268474-21ssh11:57:327
380730399120,10cyclictest4094743-21if_err_p4p109:28:217
3807295991210,2cyclictest3917590-21kworker/u16:3+flush-8:008:18:325
3807293991210,2cyclictest82147-21kworker/u16:1+flush-8:010:59:504
3807293991210,2cyclictest4044651-21kworker/u16:0+flush-8:009:59:054
380730399118,3cyclictest6530-21gmain07:33:357
380730399118,2cyclictest1302-21snmpd08:08:177
380730399118,2cyclictest0-21swapper/710:43:377
380730399117,3cyclictest1302-21snmpd08:24:127
3807303991111,0cyclictest0-21swapper/707:19:157
380730399110,2cyclictest8312-21ssh10:08:447
380730399110,1cyclictest230597-21ssh11:40:457
380730399107,2cyclictest1302-21snmpd11:03:167
380730399107,2cyclictest1302-21snmpd08:37:217
380730399107,2cyclictest0-21swapper/712:13:207
380730399107,2cyclictest0-21swapper/709:38:197
380729399108,2cyclictest4044651-21kworker/u16:0+flush-8:009:14:034
380729399108,2cyclictest4044651-21kworker/u16:0+flush-8:009:14:034
380729399108,2cyclictest232061-21kworker/u16:2+flush-8:012:15:274
380729399107,2cyclictest2329546-21kworker/u16:1+events_unbound07:23:134
38072959997,2cyclictest3806030-21kworker/u16:2+flush-8:008:53:115
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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