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2026-04-10 - 14:31
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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 376 highest latencies:
System rack0slot2.osadl.org (updated Fri Apr 10, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236394426049,8sleep40-21swapper/406:59:094
236406725141,7sleep50-21swapper/507:00:555
2364435994943,5cyclictest650-21systemd-journal10:07:037
2364435994943,5cyclictest650-21systemd-journal10:07:037
2364430994947,2cyclictest2742928-21kworker/u16:1+flush-8:011:17:335
2364434994643,2cyclictest3081851-21kworker/u16:0+events_unbound12:27:056
2364430994543,2cyclictest2656216-21kworker/u16:4+events_unbound09:29:595
2364434994442,2cyclictest2682219-21kworker/u16:0+events_unbound09:48:106
2364434994441,2cyclictest3021475-21kworker/u16:4+events_unbound12:02:126
2364434994441,2cyclictest3021475-21kworker/u16:4+events_unbound12:02:126
2364430994441,2cyclictest2815689-21kworker/u16:2+events_unbound10:57:055
2364434994341,2cyclictest2958539-21kworker/u16:0+events_unbound11:31:296
2364434994341,2cyclictest2656216-21kworker/u16:4+events_unbound10:25:536
2364434994341,2cyclictest2609238-21kworker/u16:2+events_unbound09:20:056
23640782432,37sleep70-21swapper/707:01:057
2364434994240,2cyclictest2958539-21kworker/u16:0+events_unbound11:58:176
2364434994240,2cyclictest2742928-21kworker/u16:1+events_unbound10:35:416
2364434994240,2cyclictest2742928-21kworker/u16:1+events_unbound10:18:216
2364434994240,2cyclictest2656217-21kworker/u16:5+events_unbound10:10:096
2364434994240,2cyclictest2656216-21kworker/u16:4+events_unbound09:45:316
2364434994240,2cyclictest2511218-21kworker/u16:1+events_unbound09:13:266
2364434994139,2cyclictest2972898-21kworker/u16:1+events_unbound11:50:056
2364434994139,2cyclictest2815689-21kworker/u16:2+events_unbound10:58:136
2364434994139,2cyclictest2742928-21kworker/u16:1+events_unbound10:54:466
2364434994139,2cyclictest2742928-21kworker/u16:1+events_unbound10:06:056
2364434994139,2cyclictest2742928-21kworker/u16:1+events_unbound10:06:056
2364434994139,2cyclictest2656216-21kworker/u16:4+events_unbound11:11:096
2364434994139,2cyclictest2656216-21kworker/u16:4+events_unbound09:55:496
2364426994138,2cyclictest2815689-21kworker/u16:2+flush-8:010:41:584
236400224131,7sleep60-21swapper/606:59:596
2364434994038,2cyclictest3045737-21kworker/u16:2+events_unbound12:07:566
2364434994038,2cyclictest2972898-21kworker/u16:1+events_unbound11:44:216
2364434994038,2cyclictest2815689-21kworker/u16:2+events_unbound11:36:496
2364434994038,2cyclictest2656217-21kworker/u16:5+events_unbound10:16:226
2364434994038,2cyclictest2656216-21kworker/u16:4+events_unbound09:40:346
2364434994038,2cyclictest2656216-21kworker/u16:4+events_unbound09:25:146
2364434994038,2cyclictest2656216-21kworker/u16:4+events_unbound09:25:146
2364434994038,2cyclictest2609238-21kworker/u16:2+events_unbound09:35:456
2364434994038,2cyclictest2609238-21kworker/u16:2+events_unbound09:07:056
2364434993938,1cyclictest2656217-21kworker/u16:5+events_unbound10:01:116
2364434993937,2cyclictest3045737-21kworker/u16:2+events_unbound12:13:226
2364434993937,2cyclictest2742928-21kworker/u16:1+events_unbound10:40:136
2364434993937,2cyclictest2656216-21kworker/u16:4+events_unbound10:45:336
2364434993937,2cyclictest2656216-21kworker/u16:4+events_unbound10:45:336
2364434993937,2cyclictest2656216-21kworker/u16:4+events_unbound09:28:226
2364434993936,2cyclictest3045495-21kworker/u16:1+events_unbound12:22:126
2364430993938,1cyclictest3045737-21kworker/u16:2+events_unbound12:08:095
2364430993937,2cyclictest2656216-21kworker/u16:4+events_unbound09:47:055
2364430993936,2cyclictest3045495-21kworker/u16:1+events_unbound12:17:055
2364426993936,2cyclictest2994111-21kworker/u16:3+flush-8:012:22:034
2364435993831,6cyclictest2656064-21pool-gnome-soft09:24:037
2364435993831,6cyclictest2656064-21pool-gnome-soft09:24:037
2364434993836,2cyclictest3045495-21kworker/u16:1+events_unbound12:19:166
2364434993836,2cyclictest2815689-21kworker/u16:2+events_unbound11:16:536
2364434993836,2cyclictest2656216-21kworker/u16:4+events_unbound11:25:336
2364434993836,2cyclictest2656216-21kworker/u16:4+events_unbound11:25:336
2364434993836,2cyclictest2656216-21kworker/u16:4+events_unbound11:20:566
2364434993836,2cyclictest2656216-21kworker/u16:4+events_unbound10:47:426
2364430993836,2cyclictest2656216-21kworker/u16:4+events_unbound10:09:025
2364434993735,2cyclictest2540192-21kworker/u16:0+events_unbound09:06:386
2364434993634,2cyclictest2815689-21kworker/u16:2+events_unbound11:41:296
2364434993634,2cyclictest2656216-21kworker/u16:4+events_unbound10:29:186
2364430993634,2cyclictest2815689-21kworker/u16:2+events_unbound11:09:025
2364430993634,2cyclictest2742928-21kworker/u16:1+events_unbound10:17:015
2364435993529,4cyclictest2803403-21latency_hist10:27:037
2364434993532,2cyclictest2345098-21kworker/u16:4+events_unbound07:22:056
2364430993533,2cyclictest2609238-21kworker/u16:2+flush-8:009:17:035
2364434993432,2cyclictest2656216-21kworker/u16:4+events_unbound11:04:506
2364434993431,2cyclictest2994111-21kworker/u16:3+events_unbound11:52:066
2364430993432,2cyclictest3045495-21kworker/u16:1+events_unbound12:30:145
2364430993331,2cyclictest3021475-21kworker/u16:4+events_unbound11:57:285
2364430993331,2cyclictest2994111-21kworker/u16:3+events_unbound11:42:335
2364430993331,2cyclictest2742928-21kworker/u16:1+events_unbound10:55:025
2364430993331,2cyclictest2656216-21kworker/u16:4+events_unbound10:47:055
2364426993330,2cyclictest2425542-21kworker/u16:2+events_unbound07:37:194
2364430993230,2cyclictest3045495-21kworker/u16:1+events_unbound12:26:535
2364430993230,2cyclictest2656216-21kworker/u16:4+events_unbound11:06:065
2364430993230,2cyclictest2656216-21kworker/u16:4+events_unbound10:31:545
2364430993230,2cyclictest2656216-21kworker/u16:4+events_unbound09:33:095
2364430993230,2cyclictest2656216-21kworker/u16:4+events_unbound09:24:315
2364430993230,2cyclictest2656216-21kworker/u16:4+events_unbound09:24:315
2364426993230,2cyclictest2958539-21kworker/u16:0+flush-8:011:37:214
2364434993129,2cyclictest2511218-21kworker/u16:1+events_unbound08:28:186
2364434993129,2cyclictest2425542-21kworker/u16:2+flush-8:008:02:326
2364430993129,2cyclictest3045495-21kworker/u16:1+events_unbound12:16:025
2364430993129,2cyclictest2682219-21kworker/u16:0+events_unbound09:43:195
2364430993129,2cyclictest2656216-21kworker/u16:4+events_unbound10:20:015
2364430993129,2cyclictest2656216-21kworker/u16:4+events_unbound09:38:455
2364430993129,2cyclictest2587555-21kworker/u16:3+events_unbound09:03:195
2364430993128,3cyclictest2445627-21kworker/u16:1+flush-8:007:42:295
2364430993128,2cyclictest2958539-21kworker/u16:0+events_unbound11:37:055
2364426993128,3cyclictest2815689-21kworker/u16:2+flush-8:011:07:264
2364434993028,2cyclictest2425542-21kworker/u16:2+events_unbound08:42:016
2364434993028,2cyclictest2425542-21kworker/u16:2+events_unbound08:16:176
2364430993028,2cyclictest2742928-21kworker/u16:1+flush-8:010:44:415
2364430993028,2cyclictest2742928-21kworker/u16:1+flush-8:010:44:415
2364430993028,2cyclictest2682219-21kworker/u16:0+events_unbound09:58:415
2364430993028,2cyclictest2682219-21kworker/u16:0+events_unbound09:53:505
2364430993028,2cyclictest2656216-21kworker/u16:4+events_unbound11:24:465
2364430993028,2cyclictest2656216-21kworker/u16:4+events_unbound11:24:465
2364430993028,2cyclictest2511218-21kworker/u16:1+events_unbound09:09:595
2364430993027,2cyclictest2540192-21kworker/u16:0+flush-8:008:37:285
2364426993028,2cyclictest3021475-21kworker/u16:4+flush-8:011:57:334
2364426993026,3cyclictest2656217-21kworker/u16:5+flush-8:009:57:394
2364434992927,2cyclictest2345097-21kworker/u16:0+events_unbound07:42:146
2364430992927,2cyclictest2958539-21kworker/u16:0+events_unbound12:03:225
2364430992927,2cyclictest2958539-21kworker/u16:0+events_unbound12:03:225
2364430992927,2cyclictest2656216-21kworker/u16:4+events_unbound11:29:065
2364430992927,2cyclictest2656216-21kworker/u16:4+events_unbound11:13:015
2364430992927,2cyclictest2656216-21kworker/u16:4+events_unbound10:41:215
2364430992927,2cyclictest2345098-21kworker/u16:4+flush-8:007:11:585
2364426992927,2cyclictest2345098-21kworker/u16:4+flush-8:007:52:304
30942672280,1chrt3094265-21latency_hist12:27:037
2364435992822,5cyclictest2791356-21latency_hist10:22:037
2364434992826,2cyclictest2587555-21kworker/u16:3+events_unbound08:58:146
2364434992826,2cyclictest2345098-21kworker/u16:4+events_unbound07:30:196
2364430992826,2cyclictest2656216-21kworker/u16:4+events_unbound10:35:105
2364430992826,2cyclictest2609238-21kworker/u16:2+events_unbound09:15:305
2364430992826,2cyclictest2345097-21kworker/u16:0+events_unbound07:23:195
2364426992826,2cyclictest3045495-21kworker/u16:1+flush-8:012:27:294
28629172270,1chrt2862916-21ssh10:50:067
2364434992725,2cyclictest2345098-21kworker/u16:4+events_unbound07:09:586
2364426992725,2cyclictest2656216-21kworker/u16:4+events_unbound09:52:304
2364426992725,2cyclictest2345098-21kworker/u16:4+flush-8:007:47:354
2364426992724,3cyclictest2994111-21kworker/u16:3+flush-8:012:06:574
2364426992724,3cyclictest2994111-21kworker/u16:3+flush-8:012:06:574
27179112260,1chrt2717909-21ssh09:50:597
2364434992624,2cyclictest2425542-21kworker/u16:2+events_unbound08:23:216
2364426992622,3cyclictest2609238-21kworker/u16:2+flush-8:009:17:154
2364435992520,4cyclictest2984997-21latency_hist11:42:037
2364434992523,2cyclictest2511218-21kworker/u16:1+events_unbound08:20:196
2364430992523,2cyclictest2656216-21kworker/u16:4+events_unbound10:26:305
2364435992418,5cyclictest2530275-21latency_hist08:27:047
2364434992422,2cyclictest2345098-21kworker/u16:4+events_unbound07:41:186
2364430992422,2cyclictest2972898-21kworker/u16:1+events_unbound11:56:105
2364430992422,2cyclictest2972898-21kworker/u16:1+events_unbound11:49:225
2364430992422,2cyclictest2815689-21kworker/u16:2+events_unbound11:36:415
2364430992422,2cyclictest2656217-21kworker/u16:5+events_unbound10:04:135
2364430992422,2cyclictest2656217-21kworker/u16:5+events_unbound10:04:135
2364430992422,2cyclictest2345098-21kworker/u16:4+flush-8:007:12:135
2364430992422,2cyclictest2345098-21kworker/u16:4+flush-8:007:12:135
2364426992420,3cyclictest2815689-21kworker/u16:2+flush-8:010:57:034
2364426992420,3cyclictest2425542-21kworker/u16:2+flush-8:007:45:384
2364435992323,0cyclictest0-21swapper/709:07:177
2364434992321,2cyclictest2540192-21kworker/u16:0+events_unbound08:45:576
2364426992321,2cyclictest2511218-21kworker/u16:1+events_unbound08:57:254
2364435992217,4cyclictest2597086-21cat09:01:587
2364435992216,5cyclictest2587522-21latency_hist08:57:037
236443599220,20cyclictest124-21kswapd011:47:257
2364434992220,2cyclictest2425542-21kworker/u16:2+events_unbound08:01:576
2364434992220,2cyclictest2425542-21kworker/u16:2+events_unbound08:01:576
2364434992220,2cyclictest2345097-21kworker/u16:0+events_unbound07:32:186
2364434992220,2cyclictest2345097-21kworker/u16:0+events_unbound07:20:156
2364430992220,2cyclictest2345097-21kworker/u16:0+flush-8:007:27:305
2364426992220,2cyclictest2345097-21kworker/u16:0+flush-8:007:22:244
2364426992219,2cyclictest2972898-21kworker/u16:1+flush-8:011:42:084
2364435992115,5cyclictest2482574-21latency_hist08:02:037
2364435992115,5cyclictest2482574-21latency_hist08:02:037
2364434992119,2cyclictest2345098-21kworker/u16:4+events_unbound07:13:446
2364434992119,2cyclictest2345098-21kworker/u16:4+events_unbound07:13:446
2364426992119,2cyclictest2815689-21kworker/u16:2+events_unbound11:12:164
2364426992119,2cyclictest2656216-21kworker/u16:4+events_unbound09:47:254
2364435991913,5cyclictest2888143-21latency_hist11:02:037
2364434991917,2cyclictest2425542-21kworker/u16:2+events_unbound07:54:146
2364434991917,2cyclictest2345098-21kworker/u16:4+flush-8:007:06:586
2364426991915,3cyclictest6472-21gnome-software09:24:124
2364426991915,3cyclictest6472-21gnome-software09:24:124
2364434991816,2cyclictest2511218-21kworker/u16:1+events_unbound08:36:546
2364430991816,2cyclictest2425542-21kworker/u16:2+events_unbound07:33:195
2364426991816,2cyclictest3045495-21kworker/u16:1+events_unbound12:12:144
2364426991814,3cyclictest2511218-21kworker/u16:1+flush-8:008:47:204
236443599178,8cyclictest0-21swapper/711:22:237
236443599178,8cyclictest0-21swapper/711:22:237
236443599178,8cyclictest0-21swapper/711:07:237
2364435991712,4cyclictest2730636-21latency_hist09:57:037
2364435991712,4cyclictest2453960-21latency_hist07:47:037
2364435991711,5cyclictest2373826-21latency_hist07:07:037
236443599170,16cyclictest0-21swapper/707:32:277
2364434991715,2cyclictest2540192-21kworker/u16:0+flush-8:008:52:426
2364434991715,2cyclictest2345098-21kworker/u16:4+events_unbound07:50:076
2364430991715,2cyclictest2345098-21kworker/u16:4+flush-8:007:38:015
2364430991715,2cyclictest2345097-21kworker/u16:0+events_unbound07:02:135
2364426991716,1cyclictest2742928-21kworker/u16:1+events_unbound11:26:384
2364426991716,1cyclictest2742928-21kworker/u16:1+events_unbound11:26:384
2364426991715,2cyclictest2345098-21kworker/u16:4+flush-8:008:07:264
2364426991715,2cyclictest2345098-21kworker/u16:4+flush-8:007:57:254
2364426991715,2cyclictest2345098-21kworker/u16:4+flush-8:007:57:254
2364426991713,3cyclictest2656216-21kworker/u16:4+flush-8:010:32:214
2364426991713,3cyclictest2540197-21munin-node08:32:144
236443599168,7cyclictest0-21swapper/711:32:207
236443599168,7cyclictest0-21swapper/709:17:307
236443599166,9cyclictest0-21swapper/709:02:267
236443599163,11cyclictest1267-21snmpd07:07:047
236443599160,15cyclictest3057619-21latency_hist12:12:037
2364434991614,2cyclictest2511218-21kworker/u16:1+flush-8:008:47:576
2364434991614,2cyclictest2425542-21kworker/u16:2+events_unbound08:08:226
2364430991614,2cyclictest2587555-21kworker/u16:3+events_unbound08:57:335
2364430991614,2cyclictest2345098-21kworker/u16:4+events_unbound07:49:135
2364426991614,2cyclictest2656216-21kworker/u16:4+flush-8:010:42:264
2364426991614,2cyclictest2656216-21kworker/u16:4+flush-8:010:42:264
2364426991614,2cyclictest2609238-21kworker/u16:2+flush-8:009:32:284
2364426991614,2cyclictest2511218-21kworker/u16:1+events_unbound08:22:184
236443599158,6cyclictest0-21swapper/710:45:137
236443599158,6cyclictest0-21swapper/710:45:137
236443599157,7cyclictest0-21swapper/711:57:217
236443599157,7cyclictest0-21swapper/709:32:167
236443599156,8cyclictest0-21swapper/710:37:237
2364435991511,3cyclictest1267-21snmpd08:02:457
236443599150,14cyclictest5747-21gnome-shell10:52:137
236443599150,13cyclictest5436-21crond07:37:047
236443599150,13cyclictest1267-21snmpd08:44:017
236443599150,13cyclictest0-21swapper/708:32:267
236443599150,13cyclictest0-21swapper/707:17:287
236443599148,5cyclictest3018159-21ssh11:52:227
236443599148,5cyclictest2768377-21ssh10:12:187
236443599147,6cyclictest0-21swapper/711:45:047
236443599147,6cyclictest0-21swapper/709:37:337
236443599146,7cyclictest0-21swapper/712:27:227
236443599146,7cyclictest0-21swapper/712:17:217
236443599146,7cyclictest0-21swapper/711:12:257
236443599146,7cyclictest0-21swapper/709:42:227
236443599145,8cyclictest0-21swapper/712:14:367
2364430991412,2cyclictest2425542-21kworker/u16:2+flush-8:008:11:585
2364426991412,2cyclictest2345097-21kworker/u16:0+events_unbound07:17:164
2364426991411,3cyclictest2587555-21kworker/u16:3+flush-8:009:02:294
2364426991411,2cyclictest2511218-21kworker/u16:1+events_unbound09:07:154
236443599139,3cyclictest1267-21snmpd08:49:287
236443599139,3cyclictest1267-21snmpd08:30:067
236443599139,3cyclictest1267-21snmpd08:18:487
236443599136,6cyclictest0-21swapper/712:02:277
236443599136,6cyclictest0-21swapper/712:02:277
236443599136,6cyclictest0-21swapper/711:27:377
236443599136,6cyclictest0-21swapper/711:02:407
236443599136,6cyclictest0-21swapper/710:35:077
236443599136,6cyclictest0-21swapper/710:28:017
236443599136,6cyclictest0-21swapper/709:28:027
236443599135,7cyclictest0-21swapper/711:19:597
236443599135,7cyclictest0-21swapper/709:12:047
236443599134,8cyclictest2763933-21ntpq10:07:277
2364435991310,2cyclictest0-21swapper/709:57:037
2364430991311,2cyclictest2425542-21kworker/u16:2+events_unbound08:42:265
236443099130,13cyclictest0-21swapper/507:52:315
2364426991311,2cyclictest2656217-21kworker/u16:5+flush-8:009:37:244
2364426991311,2cyclictest2345097-21kworker/u16:0+events_unbound07:12:284
2364426991311,2cyclictest2345097-21kworker/u16:0+events_unbound07:12:284
236442699130,1cyclictest0-21swapper/412:25:434
236442699130,13cyclictest0-21swapper/410:50:494
236443599128,3cyclictest6184-21gvfs-afc-volume07:52:217
236443599128,3cyclictest1267-21snmpd08:10:307
236443599128,3cyclictest1267-21snmpd07:16:137
236443599128,3cyclictest1267-21snmpd07:16:137
236443599127,4cyclictest1267-21snmpd07:29:537
236443599125,6cyclictest0-21swapper/708:15:177
2364430991210,2cyclictest2511218-21kworker/u16:1+events_unbound08:47:175
2364430991210,2cyclictest2345098-21kworker/u16:4+events_unbound07:57:335
2364430991210,2cyclictest2345098-21kworker/u16:4+events_unbound07:57:335
236443099120,1cyclictest0-21swapper/508:30:495
236442699128,3cyclictest2889431-21cat11:02:174
2364426991211,1cyclictest0-21swapper/412:11:044
2364426991211,1cyclictest0-21swapper/411:20:184
2364426991211,1cyclictest0-21swapper/410:03:224
2364426991211,1cyclictest0-21swapper/410:03:224
2364426991210,2cyclictest2511218-21kworker/u16:1+flush-8:008:27:194
236442699120,12cyclictest0-21swapper/410:11:054
236443599117,3cyclictest1267-21snmpd07:47:417
236443599110,2cyclictest0-21swapper/707:22:257
236443099119,2cyclictest2540192-21kworker/u16:0+events_unbound08:52:165
2364430991110,1cyclictest0-21swapper/507:18:275
236443099110,4cyclictest0-21swapper/508:32:175
236442699119,2cyclictest2994111-21kworker/u16:3+events_unbound11:52:234
236442699119,2cyclictest2972898-21kworker/u16:1+flush-8:011:47:194
236442699119,2cyclictest2587555-21kworker/u16:3+events_unbound09:12:324
236442699119,2cyclictest2345098-21kworker/u16:4+flush-8:007:32:294
236442699119,2cyclictest2345097-21kworker/u16:0+flush-8:007:07:144
236442699117,3cyclictest0-21swapper/410:27:244
236442699116,4cyclictest2768354-21cat10:12:174
2364426991110,1cyclictest0-21swapper/410:26:234
236443599106,3cyclictest6184-21gvfs-afc-volume08:37:237
236443099109,1cyclictest0-21swapper/508:14:165
236442699109,1cyclictest0-21swapper/409:46:394
236442699109,1cyclictest0-21swapper/409:30:154
236442699109,1cyclictest0-21swapper/408:54:574
236442699109,1cyclictest0-21swapper/408:42:204
236442699109,1cyclictest0-21swapper/408:38:334
236442699109,1cyclictest0-21swapper/408:21:504
236442699109,1cyclictest0-21swapper/407:04:454
23644309997,2cyclictest2425542-21kworker/u16:2+flush-8:008:02:235
23644269996,3cyclictest2742928-21kworker/u16:1+flush-8:011:27:194
23644309986,2cyclictest2425542-21kworker/u16:2+events_unbound08:22:305
23644269987,1cyclictest0-21swapper/411:35:164
23644269987,1cyclictest0-21swapper/410:18:394
23644269987,1cyclictest0-21swapper/408:16:194
23644269986,1cyclictest0-21swapper/407:27:154
23644309975,2cyclictest2511218-21kworker/u16:1+events_unbound08:17:175
23644269976,1cyclictest0-21swapper/408:02:274
23644269972,4cyclictest2878293-21kthreadcore10:57:204
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