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2026-01-09 - 17:25
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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 Fri Jan 09, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
411841225949,7sleep60-21swapper/607:07:496
411829125319,30sleep70-21swapper/707:06:057
411813424938,8sleep50-21swapper/507:03:555
4118742993735,2cyclictest403971-21kworker/u16:0+flush-8:011:28:356
411841923625,8sleep40-21swapper/407:07:554
4118744993429,4cyclictest151685-21latency_hist09:03:087
4118739993330,2cyclictest373644-21kworker/u16:4+flush-8:011:48:035
4118733993330,2cyclictest3375731-21kworker/u16:0+events_unbound07:13:114
4118742993230,2cyclictest6733-21kworker/u16:4+flush-8:008:03:086
4118739993129,2cyclictest510294-21kworker/u16:2+flush-8:012:23:035
4118742993027,2cyclictest365028-21kworker/u16:2+events_unbound11:18:106
4118742992927,2cyclictest4099206-21kworker/u16:1+events_unbound07:38:286
4118742992927,2cyclictest4099206-21kworker/u16:1+events_unbound07:38:286
4118739992927,2cyclictest373644-21kworker/u16:4+flush-8:011:08:085
4118739992927,2cyclictest142020-21kworker/u16:2+flush-8:009:38:045
4118739992826,2cyclictest74222-21kworker/u16:0+flush-8:010:38:035
4118739992825,3cyclictest74222-21kworker/u16:0+flush-8:010:48:235
4118739992825,2cyclictest297456-21kworker/u16:1+events_unbound10:38:215
4118739992725,2cyclictest403971-21kworker/u16:0+flush-8:011:48:315
4118742992624,2cyclictest373644-21kworker/u16:4+events_unbound12:09:046
4118742992624,2cyclictest373644-21kworker/u16:4+events_unbound12:05:046
4118742992624,2cyclictest365028-21kworker/u16:2+events_unbound10:56:036
4118742992624,2cyclictest152075-21kworker/u16:3+events_unbound09:10:056
4118742992623,2cyclictest403971-21kworker/u16:0+events_unbound12:18:116
4118742992523,2cyclictest74222-21kworker/u16:0+events_unbound08:53:406
4118742992523,2cyclictest403971-21kworker/u16:0+events_unbound11:53:126
4118742992523,2cyclictest142020-21kworker/u16:2+events_unbound09:35:206
4118742992522,2cyclictest44833-21kworker/u16:1+events_unbound08:13:096
4118739992522,2cyclictest26070-21kworker/u16:2+flush-8:008:38:045
373452250,1chrt0-21swapper/508:03:235
4118742992422,2cyclictest74222-21kworker/u16:0+events_unbound10:06:156
4118742992422,2cyclictest403971-21kworker/u16:0+events_unbound11:58:176
4118742992422,2cyclictest373644-21kworker/u16:4+flush-8:011:12:086
4118742992422,2cyclictest373644-21kworker/u16:4+events_unbound11:48:116
4118739992422,2cyclictest373644-21kworker/u16:4+flush-8:012:13:075
4118739992421,2cyclictest103561-21kworker/u16:1+events_unbound08:58:225
4118744992318,4cyclictest238828-21latency_hist09:48:087
4118742992321,2cyclictest74222-21kworker/u16:0+events_unbound10:13:016
4118742992321,2cyclictest278085-21kworker/u16:2+events_unbound10:17:236
4118742992321,2cyclictest26070-21kworker/u16:2+events_unbound08:35:206
4118742992321,2cyclictest103561-21kworker/u16:1+events_unbound08:45:206
4118739992320,2cyclictest403971-21kworker/u16:0+flush-8:012:23:235
4118739992320,2cyclictest373644-21kworker/u16:4+events_unbound11:33:325
4118739992320,2cyclictest373644-21kworker/u16:4+events_unbound11:33:325
4118744992216,5cyclictest393922-21latency_hist11:08:087
4118744992216,5cyclictest1267-21snmpd08:52:557
4118742992220,2cyclictest365028-21kworker/u16:2+events_unbound11:28:026
4118742992220,2cyclictest26070-21kworker/u16:2+events_unbound08:29:196
4118742992219,2cyclictest74222-21kworker/u16:0+events_unbound10:28:166
4118742992219,2cyclictest248644-21kworker/u16:2+events_unbound09:53:096
4118739992220,2cyclictest373644-21kworker/u16:4+events_unbound11:23:325
4118742992119,2cyclictest6339-21kworker/u16:0+events_unbound07:57:046
4118742992119,2cyclictest44833-21kworker/u16:1+events_unbound08:10:046
4118742992119,2cyclictest373644-21kworker/u16:4+events_unbound11:17:036
4118742992119,2cyclictest297456-21kworker/u16:1+events_unbound10:44:196
4118742992119,2cyclictest228364-21kworker/u16:3+events_unbound09:39:036
4118733992119,2cyclictest74222-21kworker/u16:0+flush-8:010:33:214
4118742992018,2cyclictest74222-21kworker/u16:0+flush-8:009:23:386
4118742992018,2cyclictest6339-21kworker/u16:0+flush-8:007:48:366
4118742992018,2cyclictest44833-21kworker/u16:1+events_unbound08:04:046
4118742992018,2cyclictest3375731-21kworker/u16:0+events_unbound07:24:046
4118742992017,2cyclictest103561-21kworker/u16:1+flush-8:009:03:196
4118739992018,2cyclictest4099206-21kworker/u16:1+flush-8:007:53:365
4118733992018,2cyclictest373644-21kworker/u16:4+flush-8:012:08:394
4118744991913,5cyclictest141985-21latency_hist08:58:097
4118742991917,2cyclictest74222-21kworker/u16:0+events_unbound08:25:206
4118742991917,2cyclictest44833-21kworker/u16:1+events_unbound08:21:416
4118742991917,2cyclictest4064780-21kworker/u16:2+events_unbound07:14:046
4118742991917,2cyclictest297456-21kworker/u16:1+events_unbound10:36:166
4118742991917,2cyclictest142020-21kworker/u16:2+events_unbound08:59:206
4118742991916,2cyclictest74222-21kworker/u16:0+flush-8:010:43:086
4118742991916,2cyclictest297456-21kworker/u16:1+events_unbound10:23:156
4118739991917,2cyclictest200154-21kworker/u16:1+flush-8:009:53:315
4118733991916,2cyclictest403971-21kworker/u16:0+flush-8:012:23:264
4118744991812,5cyclictest1267-21snmpd07:13:567
411874499180,16cyclictest650-21systemd-journal07:53:037
411874499180,16cyclictest0-21swapper/707:58:067
4118742991816,2cyclictest403971-21kworker/u16:0+events_unbound12:31:236
4118742991816,2cyclictest403971-21kworker/u16:0+events_unbound12:27:366
4118742991816,2cyclictest365028-21kworker/u16:2+events_unbound11:00:036
4118742991816,2cyclictest3375731-21kworker/u16:0+events_unbound07:18:386
4118742991816,2cyclictest200154-21kworker/u16:1+events_unbound09:48:396
4118742991816,2cyclictest142020-21kworker/u16:2+events_unbound09:31:046
4118742991815,2cyclictest373644-21kworker/u16:4+events_unbound11:03:116
4118733991816,2cyclictest248904-21kworker/u16:4+events_unbound09:53:214
411874499178,8cyclictest384234-21latency_hist11:03:087
4118744991714,2cyclictest1267-21snmpd09:04:137
4118744991713,3cyclictest1267-21snmpd08:32:127
4118742991715,2cyclictest403971-21kworker/u16:0+flush-8:012:18:076
4118742991715,2cyclictest103561-21kworker/u16:1+events_unbound08:40:056
4118739991715,2cyclictest403971-21kworker/u16:0+flush-8:012:13:315
411873999170,3cyclictest322044-21kthreadcore10:28:275
4118733991714,2cyclictest26070-21kworker/u16:2+flush-8:007:58:154
411874499169,5cyclictest1267-21snmpd08:10:367
411874499168,2cyclictest0-21swapper/707:23:267
4118744991613,2cyclictest1267-21snmpd07:18:507
4118744991611,4cyclictest0-21swapper/709:53:087
4118744991610,5cyclictest1267-21snmpd12:19:137
411874499160,14cyclictest0-21swapper/712:28:347
4118742991614,2cyclictest558748-21kworker/u16:4+events_unbound12:36:186
4118742991614,2cyclictest3375731-21kworker/u16:0+events_unbound07:29:136
4118742991614,2cyclictest278085-21kworker/u16:2+events_unbound10:18:376
4118742991613,2cyclictest74222-21kworker/u16:0+flush-8:008:48:096
4118739991614,2cyclictest54870-21kworker/u16:3+flush-8:008:18:325
411873399160,1cyclictest0-21swapper/410:08:334
411874499159,5cyclictest6280-21latency_hist07:48:097
411874499156,8cyclictest6450-21gmain08:33:357
411874499154,10cyclictest6184-21gvfs-afc-volume10:13:097
4118744991512,2cyclictest0-21swapper/709:48:087
4118744991512,2cyclictest0-21swapper/709:18:097
4118744991510,4cyclictest494083-21grep11:58:257
411874499150,14cyclictest0-21swapper/709:08:287
411874499150,14cyclictest0-21swapper/708:38:327
411874499150,13cyclictest1267-21snmpd09:40:037
411874499150,13cyclictest0-21swapper/711:23:347
4118742991513,2cyclictest228364-21kworker/u16:3+flush-8:009:46:456
411873399150,15cyclictest0-21swapper/410:13:204
411874499148,5cyclictest1267-21snmpd12:37:497
411874499147,6cyclictest1267-21snmpd12:04:007
411874499140,9cyclictest0-21swapper/711:49:187
411874499140,12cyclictest1267-21snmpd10:33:557
4118742991412,2cyclictest4064780-21kworker/u16:2+events_unbound07:10:166
4118742991412,2cyclictest248904-21kworker/u16:4+events_unbound10:01:166
4118742991412,2cyclictest248904-21kworker/u16:4+events_unbound10:01:166
4118739991411,2cyclictest103561-21kworker/u16:1+flush-8:008:38:325
411873999140,1cyclictest0-21swapper/507:33:275
411873399140,1cyclictest0-21swapper/411:03:094
411873399140,14cyclictest0-21swapper/411:48:334
411874499139,3cyclictest1267-21snmpd12:25:077
411874499139,3cyclictest1267-21snmpd11:15:477
411874499139,3cyclictest1267-21snmpd09:28:327
411874499138,4cyclictest64911-21/usr/sbin/munin08:18:297
411874499137,5cyclictest1267-21snmpd10:09:487
411874499137,5cyclictest1267-21snmpd09:13:387
411874499137,5cyclictest1267-21snmpd08:13:487
411874499136,6cyclictest0-21swapper/708:00:037
411874499135,7cyclictest490612-21latency_hist11:58:087
411874499135,3cyclictest6053-21gmain07:42:157
411874499135,3cyclictest6053-21gmain07:42:157
4118744991310,2cyclictest1267-21snmpd10:53:587
4118744991310,2cyclictest0-21swapper/707:28:317
411874499130,9cyclictest0-21swapper/707:09:047
411874499130,1cyclictest0-21swapper/711:33:307
411874499130,1cyclictest0-21swapper/711:33:307
411874499130,1cyclictest0-21swapper/710:28:317
411874499130,12cyclictest924-21NetworkManager10:43:297
4118742991311,2cyclictest74222-21kworker/u16:0+events_unbound10:52:516
4118742991311,2cyclictest4099206-21kworker/u16:1+events_unbound07:37:256
4118742991311,2cyclictest152075-21kworker/u16:3+events_unbound09:22:406
4118742991310,2cyclictest103561-21kworker/u16:1+flush-8:009:13:186
411873999130,5cyclictest0-21swapper/509:58:215
411873999130,5cyclictest0-21swapper/509:58:215
411873999130,1cyclictest0-21swapper/509:42:065
411873999130,13cyclictest0-21swapper/510:18:305
411873399139,3cyclictest241422-21grep09:48:254
4118733991312,1cyclictest0-21swapper/407:33:194
4118733991310,2cyclictest354096-21needreboot10:43:294
411874499128,3cyclictest432996-21/usr/sbin/munin11:28:237
411874499128,3cyclictest1267-21snmpd10:23:367
411874499128,3cyclictest1267-21snmpd09:58:547
411874499128,3cyclictest1267-21snmpd09:58:547
411874499127,4cyclictest6184-21gvfs-afc-volume11:18:207
411874499125,6cyclictest96-21ksoftirqd/712:08:267
411874499125,6cyclictest6045-21gmain10:38:237
411874499124,7cyclictest0-21swapper/707:36:357
411874499120,9cyclictest0-21swapper/709:37:367
411874499120,7cyclictest1267-21snmpd08:44:257
411874499120,10cyclictest0-21swapper/709:23:327
4118742991210,2cyclictest442675-21kworker/u16:1+events_unbound11:42:596
4118742991210,2cyclictest403971-21kworker/u16:0+events_unbound11:43:226
4118742991210,2cyclictest365028-21kworker/u16:2+events_unbound11:34:076
4118742991210,2cyclictest365028-21kworker/u16:2+events_unbound11:34:076
4118739991210,2cyclictest6339-21kworker/u16:0+events_unbound07:58:105
411873999120,1cyclictest0-21swapper/511:16:135
411873999120,11cyclictest0-21swapper/512:28:165
411873399129,2cyclictest206892-21kthreadcore09:28:294
4118733991211,1cyclictest0-21swapper/412:18:594
4118733991211,1cyclictest0-21swapper/408:06:544
4118733991210,2cyclictest3375731-21kworker/u16:0+flush-8:007:23:044
411873399120,1cyclictest0-21swapper/412:29:524
411873399120,1cyclictest0-21swapper/412:16:564
411873399120,1cyclictest0-21swapper/410:22:574
411873399120,12cyclictest0-21swapper/412:06:034
411873399120,11cyclictest0-21swapper/411:18:174
411874499118,2cyclictest0-21swapper/711:08:097
411874499116,4cyclictest924-21NetworkManager08:05:387
411874499116,4cyclictest306432-21chrt10:18:587
411874499116,4cyclictest1267-21snmpd12:15:197
411874499115,5cyclictest5944-21gmain11:38:357
411874499110,6cyclictest650-21systemd-journal11:43:097
411874299119,2cyclictest4180700-21kworker/u16:3+flush-8:007:43:296
411873999119,2cyclictest4099206-21kworker/u16:1+flush-8:007:23:245
411873999119,2cyclictest297456-21kworker/u16:1+flush-8:010:43:315
411873999118,2cyclictest4099206-21kworker/u16:1+flush-8:007:48:345
4118739991110,1cyclictest0-21swapper/511:57:415
4118739991110,1cyclictest0-21swapper/510:26:245
4118739991110,1cyclictest0-21swapper/507:42:275
4118739991110,1cyclictest0-21swapper/507:42:275
4118739991110,1cyclictest0-21swapper/507:31:155
4118739991110,1cyclictest0-21swapper/507:11:425
411873999110,11cyclictest0-21swapper/510:58:435
411873999110,11cyclictest0-21swapper/509:32:395
411873999110,11cyclictest0-21swapper/509:05:515
411873999110,11cyclictest0-21swapper/508:26:545
411873999110,11cyclictest0-21swapper/507:44:395
4118733991110,1cyclictest0-21swapper/410:48:484
4118733991110,1cyclictest0-21swapper/410:28:474
4118733991110,1cyclictest0-21swapper/408:55:464
4118733991110,1cyclictest0-21swapper/407:39:564
4118733991110,1cyclictest0-21swapper/407:39:564
411873399110,11cyclictest0-21swapper/411:57:234
411873399110,11cyclictest0-21swapper/409:10:354
411873399110,11cyclictest0-21swapper/408:39:514
411873399110,11cyclictest0-21swapper/408:37:574
411873399110,11cyclictest0-21swapper/408:32:074
411873399110,11cyclictest0-21swapper/408:08:474
411874499106,3cyclictest924-21NetworkManager08:23:307
411874499101,5cyclictest0-21swapper/710:03:207
411874499100,10cyclictest0-21swapper/710:48:267
411873999109,1cyclictest0-21swapper/509:49:405
411873999109,1cyclictest0-21swapper/508:30:415
411873999109,1cyclictest0-21swapper/507:15:575
411873999108,2cyclictest74222-21kworker/u16:0+events_unbound10:08:225
411873999107,3cyclictest74222-21kworker/u16:0+flush-8:009:23:335
411873399109,1cyclictest0-21swapper/411:44:084
411873399109,1cyclictest0-21swapper/410:03:434
411873399109,1cyclictest0-21swapper/409:38:584
411873399109,1cyclictest0-21swapper/407:09:214
411873399108,2cyclictest228364-21kworker/u16:3+events_unbound09:58:204
411873399108,2cyclictest228364-21kworker/u16:3+events_unbound09:58:204
411873399107,2cyclictest373644-21kworker/u16:4+flush-8:011:08:254
411873399106,3cyclictest191598-21cat09:23:244
411873399100,10cyclictest0-21swapper/412:34:164
411873399100,0cyclictest0-21swapper/409:21:564
41187399998,1cyclictest0-21swapper/512:04:095
41187399998,1cyclictest0-21swapper/511:20:295
41187399998,1cyclictest0-21swapper/511:09:365
41187399998,1cyclictest0-21swapper/509:17:125
41187399998,1cyclictest0-21swapper/508:56:325
41187399997,2cyclictest278085-21kworker/u16:2+flush-8:010:13:265
41187399997,2cyclictest152075-21kworker/u16:3+events_unbound09:08:225
41187399990,2cyclictest492006-21irqcore11:58:235
41187339998,1cyclictest0-21swapper/411:39:434
41187339998,1cyclictest0-21swapper/411:00:574
41187339998,1cyclictest0-21swapper/410:56:514
41187339998,1cyclictest0-21swapper/408:24:244
41187339998,1cyclictest0-21swapper/407:54:454
41187339994,4cyclictest4160382-21rt-features07:23:354
41187339994,4cyclictest404550-21tune2fs11:13:224
41187399987,1cyclictest0-21swapper/511:42:145
41187399987,1cyclictest0-21swapper/510:05:075
41187399987,1cyclictest0-21swapper/508:44:245
41187399986,2cyclictest527899-21kworker/u16:1+events_unbound12:33:305
41187399986,1cyclictest0-21swapper/508:13:235
41187399985,3cyclictest74222-21kworker/u16:0+flush-8:009:18:255
41187399983,4cyclictest4150396-21memory07:18:295
41187399983,4cyclictest231456-21cat09:43:235
41187399983,4cyclictest127411-21grep08:48:255
41187339986,2cyclictest278085-21kworker/u16:2+events_unbound10:23:244
41187339986,1cyclictest0-21swapper/411:33:264
41187339986,1cyclictest0-21swapper/411:33:264
41187339986,1cyclictest0-21swapper/408:18:204
41187339986,1cyclictest0-21swapper/407:28:244
41187339985,2cyclictest0-21swapper/410:38:274
41187339984,3cyclictest56519-21grep08:13:254
41187339984,3cyclictest229609-21cpuspeed09:43:184
41187339984,3cyclictest214929-21kthreadcore09:33:274
41187339984,3cyclictest158497-21kthreadcore09:03:284
41187339983,4cyclictest4994-21ntp_kernel_pll_07:43:304
41187339983,4cyclictest423494-21tr11:23:204
41187339983,4cyclictest172163-21cut09:13:214
41187339983,4cyclictest150683-21/usr/sbin/munin08:58:304
41187339983,4cyclictest128680-21cut08:48:264
41187339983,4cyclictest113970-21gltestperf08:43:224
41187399975,2cyclictest373644-21kworker/u16:4+flush-8:011:33:085
41187399973,3cyclictest46078-21grep08:08:215
41187399972,4cyclictest367856-21tr10:53:265
41187339974,2cyclictest434081-21irqcore11:28:234
41187339972,4cyclictest491351-21expr11:58:194
41187339963,2cyclictest6828-21cpuspeed07:48:204
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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