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2026-04-05 - 22:24
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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 05, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5856442980,1sleep7585646-21tr11:37:467
5856442980,1sleep7585646-21tr11:37:467
416117326149,8sleep60-21swapper/606:58:516
416137025948,8sleep50-21swapper/507:01:395
4161707995856,2cyclictest509404-21kworker/u16:3+events_unbound12:07:374
4161707995351,2cyclictest509404-21kworker/u16:3+events_unbound11:27:534
4161707995350,2cyclictest509404-21kworker/u16:3+events_unbound11:42:404
4161707995148,2cyclictest601556-21kworker/u16:1+events_unbound12:17:244
4161707995148,2cyclictest601556-21kworker/u16:1+events_unbound12:17:244
416131025141,7sleep40-21swapper/407:00:494
4161707995048,2cyclictest358519-21kworker/u16:2+flush-8:010:42:414
4161717994946,2cyclictest38828-21kworker/u16:0+events_unbound08:52:236
4161707994947,2cyclictest509404-21kworker/u16:3+events_unbound12:12:544
4161721994846,1cyclictest453278-21switchtime10:42:547
4161721994643,2cyclictest392598-21smart_sda10:17:537
4161721994643,2cyclictest392598-21smart_sda10:17:537
4161707994644,2cyclictest358519-21kworker/u16:2+events_unbound10:36:334
4161707994644,2cyclictest213581-21kworker/u16:3+events_unbound09:41:014
4161707994644,2cyclictest213581-21kworker/u16:3+events_unbound09:41:014
4161707994543,2cyclictest509404-21kworker/u16:3+events_unbound11:17:104
4161717994442,2cyclictest358519-21kworker/u16:2+events_unbound11:42:506
4161707994442,2cyclictest554506-21kworker/u16:0+flush-8:011:37:524
4161707994442,2cyclictest554506-21kworker/u16:0+flush-8:011:37:524
4161721994340,2cyclictest67440-21awk07:52:237
4161717994341,2cyclictest38828-21kworker/u16:0+flush-8:008:12:236
4161707994341,2cyclictest509404-21kworker/u16:3+events_unbound11:57:514
4161707994341,2cyclictest274698-21kworker/u16:1+events_unbound10:29:534
4161707994341,2cyclictest191801-21kworker/u16:2+events_unbound09:20:054
4161717994240,2cyclictest671624-21kworker/u16:4+flush-8:012:27:226
4161707994240,2cyclictest601556-21kworker/u16:1+events_unbound12:05:544
4161707994240,2cyclictest601556-21kworker/u16:1+events_unbound11:52:564
4161707994240,2cyclictest509404-21kworker/u16:3+events_unbound11:21:224
4161707994240,2cyclictest332733-21kworker/u16:0+events_unbound10:05:464
4161717994138,3cyclictest274699-21kworker/u16:2+events_unbound09:37:506
4161717994138,3cyclictest274699-21kworker/u16:2+events_unbound09:37:506
4161707994139,2cyclictest601556-21kworker/u16:1+events_unbound12:28:524
4161707994139,2cyclictest554506-21kworker/u16:0+events_unbound11:50:574
4161707994139,2cyclictest554506-21kworker/u16:0+events_unbound11:33:414
4161707994139,2cyclictest426663-21kworker/u16:0+events_unbound10:38:424
4161707994139,2cyclictest274699-21kworker/u16:2+events_unbound09:51:504
4161707994038,2cyclictest671624-21kworker/u16:4+events_unbound12:26:134
4161707994038,2cyclictest528125-21kworker/u16:1+events_unbound11:23:454
4161707994038,2cyclictest440846-21kworker/u16:3+events_unbound10:49:294
4161707994038,2cyclictest426663-21kworker/u16:0+events_unbound11:03:244
4161707994038,2cyclictest237731-21kworker/u16:0+events_unbound09:25:214
4161707994038,2cyclictest213581-21kworker/u16:3+events_unbound09:10:144
4161707993937,2cyclictest509404-21kworker/u16:3+events_unbound11:10:494
4161707993937,2cyclictest406448-21kworker/u16:3+events_unbound10:27:144
4161707993937,2cyclictest358519-21kworker/u16:2+events_unbound10:59:334
4161707993937,2cyclictest358519-21kworker/u16:2+events_unbound10:59:334
4161707993937,2cyclictest358519-21kworker/u16:2+events_unbound10:11:264
4161707993937,2cyclictest274698-21kworker/u16:1+events_unbound10:15:134
4161707993937,2cyclictest213581-21kworker/u16:3+events_unbound09:13:224
41612952395,30sleep70-21swapper/707:00:367
4161707993836,2cyclictest332733-21kworker/u16:0+events_unbound10:01:424
4161721993734,2cyclictest699763-21sed12:27:387
416172199370,35cyclictest462660-21kthreadcore10:47:447
4161717993736,1cyclictest213581-21kworker/u16:3+flush-8:009:47:236
4161707993735,2cyclictest4133287-21kworker/u16:4+events_unbound09:35:294
4161707993735,2cyclictest371367-21kworker/u16:0+events_unbound10:18:424
4161707993735,2cyclictest371367-21kworker/u16:0+events_unbound10:18:424
4161721993633,2cyclictest225594-21ssh09:12:237
4161717993634,2cyclictest426663-21kworker/u16:0+events_unbound11:07:576
4161717993633,2cyclictest426663-21kworker/u16:0+flush-8:011:12:286
4161717993633,2cyclictest191801-21kworker/u16:2+flush-8:009:17:296
4161707993634,2cyclictest4152306-21kworker/u16:0+events_unbound07:21:584
4161721993533,1cyclictest611834-21ssh11:49:137
416172199350,34cyclictest284166-21rm09:33:097
4161717993533,2cyclictest358519-21kworker/u16:2+events_unbound11:37:496
4161717993533,2cyclictest358519-21kworker/u16:2+events_unbound11:37:496
4161712993533,2cyclictest625668-21kworker/u16:2+flush-8:011:57:485
4161707993533,2cyclictest4152306-21kworker/u16:0+flush-8:007:22:494
4161707993533,2cyclictest38828-21kworker/u16:0+events_unbound08:42:514
4161707993432,2cyclictest477305-21kworker/u16:1+events_unbound10:53:184
4161707993432,2cyclictest3452001-21kworker/u16:1+events_unbound07:44:334
4161707993432,2cyclictest237731-21kworker/u16:0+events_unbound09:32:024
4161717993331,2cyclictest671624-21kworker/u16:4+events_unbound12:27:456
4161707993331,2cyclictest4133287-21kworker/u16:4+events_unbound09:03:264
4161707993331,2cyclictest213581-21kworker/u16:3+events_unbound09:46:574
4161721993232,0cyclictest0-21swapper/711:47:067
4161721993231,0cyclictest0-21swapper/710:07:267
4161717993230,2cyclictest426663-21kworker/u16:0+flush-8:010:52:496
4161717993230,2cyclictest358519-21kworker/u16:2+flush-8:010:32:296
4161717993229,2cyclictest358519-21kworker/u16:2+flush-8:010:27:296
4161707993229,2cyclictest4133287-21kworker/u16:4+events_unbound08:47:264
4161721993131,0cyclictest0-21swapper/710:54:147
4161721993130,1cyclictest0-21swapper/712:18:057
4161721993130,1cyclictest0-21swapper/712:18:057
4161721993129,1cyclictest659760-21ssh12:08:347
4161717993129,2cyclictest554506-21kworker/u16:0+events_unbound11:52:546
4161717993127,3cyclictest509404-21kworker/u16:3+flush-8:011:17:376
4161712993127,3cyclictest697059-21kworker/u16:0+flush-8:012:27:275
4161712993122,8cyclictest271331-21smart_sda09:27:495
4161707993129,2cyclictest213581-21kworker/u16:3+events_unbound09:53:454
4161721993025,4cyclictest359188-21latency_hist10:07:237
4161717993027,2cyclictest440846-21kworker/u16:3+flush-8:010:42:236
4161717993027,2cyclictest426663-21kworker/u16:0+events_unbound11:02:376
4161721992927,1cyclictest671753-21ssh12:13:257
4161717992927,2cyclictest4133287-21kworker/u16:4+events_unbound09:25:336
4161717992927,2cyclictest274699-21kworker/u16:2+events_unbound09:33:386
4161707992927,2cyclictest4133287-21kworker/u16:4+events_unbound08:53:534
4161707992927,2cyclictest3452001-21kworker/u16:1+events_unbound07:10:344
4890962280,1chrt489097-21latency10:57:477
4890962280,1chrt489097-21latency10:57:477
4161721992827,0cyclictest0-21swapper/707:17:447
4161717992825,2cyclictest509404-21kworker/u16:3+events_unbound12:07:246
4161717992825,2cyclictest358519-21kworker/u16:2+flush-8:010:47:386
4161721992726,1cyclictest201349-21diskmemload11:33:497
4161721992726,0cyclictest0-21swapper/711:53:237
4161721992726,0cyclictest0-21swapper/707:37:337
4161721992725,1cyclictest259879-21ssh09:23:387
4161717992725,2cyclictest274699-21kworker/u16:2+events_unbound09:48:216
4161712992724,2cyclictest274699-21kworker/u16:2+flush-8:009:42:485
4161707992725,2cyclictest38828-21kworker/u16:0+events_unbound08:30:464
4161707992725,2cyclictest38828-21kworker/u16:0+events_unbound08:04:424
4161721992626,0cyclictest0-21swapper/709:52:217
4161721992626,0cyclictest0-21swapper/709:40:347
4161721992626,0cyclictest0-21swapper/709:40:347
4161721992622,3cyclictest236590-21sh09:15:257
4161717992624,2cyclictest625668-21kworker/u16:2+events_unbound12:02:466
4161717992624,2cyclictest554506-21kworker/u16:0+events_unbound11:51:226
4161717992624,2cyclictest191801-21kworker/u16:2+flush-8:009:17:236
4161707992624,2cyclictest3452001-21kworker/u16:1+events_unbound07:57:584
4161721992525,0cyclictest0-21swapper/709:31:507
4161721992524,0cyclictest0-21swapper/710:13:267
4161721992523,1cyclictest430832-21ssh10:35:297
4161717992523,2cyclictest601556-21kworker/u16:1+events_unbound12:16:506
4161717992523,2cyclictest358519-21kworker/u16:2+events_unbound11:32:466
4161707992522,2cyclictest4133287-21kworker/u16:4+events_unbound08:12:314
416172199240,23cyclictest5747-21gnome-shell12:04:327
4161717992422,2cyclictest3452001-21kworker/u16:1+events_unbound09:04:506
4161717992422,2cyclictest332733-21kworker/u16:0+events_unbound10:01:016
4161717992421,2cyclictest358519-21kworker/u16:2+events_unbound10:12:256
4161707992422,2cyclictest38828-21kworker/u16:0+events_unbound08:36:304
4161707992422,2cyclictest3452001-21kworker/u16:1+flush-8:007:37:184
4161707992422,2cyclictest3452001-21kworker/u16:1+flush-8:007:37:184
4161721992323,0cyclictest0-21swapper/709:06:147
4161721992322,0cyclictest0-21swapper/711:12:337
4161721992321,1cyclictest515535-21ssh11:10:187
4161721992320,2cyclictest537288-21cut11:17:457
4161721992320,2cyclictest405211-21ssh10:22:587
4161717992321,2cyclictest426663-21kworker/u16:0+events_unbound10:42:256
4161717992321,2cyclictest237731-21kworker/u16:0+events_unbound09:28:296
4161717992320,2cyclictest3452001-21kworker/u16:1+events_unbound07:57:406
4161707992321,2cyclictest4133287-21kworker/u16:4+events_unbound07:14:234
4161707992321,2cyclictest3452001-21kworker/u16:1+events_unbound08:20:304
4161707992321,2cyclictest3452001-21kworker/u16:1+events_unbound08:20:304
416172199220,20cyclictest308492-21ssh09:43:147
4161717992220,2cyclictest213581-21kworker/u16:3+events_unbound10:12:136
4161707992220,2cyclictest4133287-21kworker/u16:4+events_unbound08:39:224
4161707992220,2cyclictest38828-21kworker/u16:0+events_unbound08:23:344
4161707992220,2cyclictest3452001-21kworker/u16:1+events_unbound07:53:384
4161721992121,0cyclictest0-21swapper/711:05:467
4161721992117,3cyclictest698236-21latency_hist12:27:227
4161721992116,4cyclictest19660-21latency_hist07:27:237
416172199210,20cyclictest5747-21gnome-shell09:56:337
4161717992119,2cyclictest601556-21kworker/u16:1+events_unbound12:19:256
4161717992119,2cyclictest601556-21kworker/u16:1+events_unbound12:19:256
4161717992119,2cyclictest406448-21kworker/u16:3+events_unbound10:25:136
4161717992119,2cyclictest3452001-21kworker/u16:1+flush-8:008:27:386
4161712992117,3cyclictest260324-21packagekitd09:24:235
4161707992119,2cyclictest19861-21kworker/u16:2+events_unbound07:29:344
4161721992016,3cyclictest546688-21kthreadcore11:22:447
4161717992017,2cyclictest4133287-21kworker/u16:4+events_unbound07:37:256
4161707992018,2cyclictest4133287-21kworker/u16:4+events_unbound07:39:264
4161721991919,0cyclictest0-21swapper/711:31:267
4161721991919,0cyclictest0-21swapper/709:59:497
4161721991918,1cyclictest0-21swapper/710:41:017
416172199190,17cyclictest115219-21latency_hist08:17:237
4161717991917,2cyclictest625668-21kworker/u16:2+events_unbound12:02:056
4161717991917,2cyclictest38828-21kworker/u16:0+events_unbound08:56:346
4161717991917,2cyclictest3452001-21kworker/u16:1+flush-8:007:43:286
4161717991917,2cyclictest3452001-21kworker/u16:1+events_unbound07:52:476
4161717991917,2cyclictest274698-21kworker/u16:1+events_unbound10:02:586
4161707991917,2cyclictest4133287-21kworker/u16:4+events_unbound08:59:314
4161707991917,2cyclictest3452001-21kworker/u16:1+events_unbound08:11:254
4161707991917,2cyclictest3452001-21kworker/u16:1+events_unbound07:52:064
4161721991817,0cyclictest0-21swapper/707:32:497
4161721991817,0cyclictest0-21swapper/707:32:497
4161721991816,1cyclictest201349-21diskmemload10:31:567
4161717991816,2cyclictest358519-21kworker/u16:2+flush-8:011:22:396
4161717991816,2cyclictest358519-21kworker/u16:2+events_unbound10:22:136
4161717991816,2cyclictest358519-21kworker/u16:2+events_unbound10:22:136
4161717991815,2cyclictest477305-21kworker/u16:1+flush-8:010:57:396
4161717991815,2cyclictest477305-21kworker/u16:1+flush-8:010:57:396
4161712991816,2cyclictest274699-21kworker/u16:2+events_unbound09:47:385
4161712991814,3cyclictest4152306-21kworker/u16:0+flush-8:007:17:505
4161721991716,1cyclictest635917-21ssh11:59:057
4161721991716,0cyclictest0-21swapper/708:32:437
4161717991715,2cyclictest4133287-21kworker/u16:4+flush-8:008:02:496
4161717991713,3cyclictest274699-21kworker/u16:2+events_unbound09:52:416
416171299170,14cyclictest0-21swapper/510:37:465
4161721991616,0cyclictest0-21swapper/709:21:137
4161721991613,2cyclictest1267-21snmpd08:03:007
4161721991610,5cyclictest650-21systemd-journal08:57:227
4161717991614,2cyclictest213581-21kworker/u16:3+events_unbound09:11:176
4161712991611,2cyclictest3452001-21kworker/u16:1+flush-8:007:53:355
416171299160,13cyclictest0-21swapper/511:12:465
416172199152,12cyclictest6450-21gmain07:07:257
4161721991514,0cyclictest0-21swapper/707:53:257
4161717991513,2cyclictest509404-21kworker/u16:3+events_unbound11:28:306
416172199147,6cyclictest6344-21gmain07:57:377
4161721991413,0cyclictest0-21swapper/708:22:437
416172199140,13cyclictest1267-21snmpd08:46:017
416172199140,12cyclictest1267-21snmpd08:59:077
4161717991412,2cyclictest4133287-21kworker/u16:4+events_unbound07:47:386
4161712991413,1cyclictest0-21swapper/511:42:435
4161712991412,2cyclictest426663-21kworker/u16:0+flush-8:010:33:215
416171299140,1cyclictest0-21swapper/512:22:555
416172199139,3cyclictest1267-21snmpd08:51:497
416172199139,3cyclictest1267-21snmpd08:31:347
416172199130,2cyclictest153893-21/usr/sbin/munin08:37:467
4161717991311,2cyclictest4152306-21kworker/u16:0+flush-8:007:17:476
4161717991311,2cyclictest38828-21kworker/u16:0+events_unbound08:17:486
4161717991311,2cyclictest38828-21kworker/u16:0+events_unbound08:17:486
4161712991312,1cyclictest0-21swapper/512:11:065
4161712991312,1cyclictest0-21swapper/507:42:375
416171299130,1cyclictest0-21swapper/512:18:595
416171299130,1cyclictest0-21swapper/512:18:595
416171299130,13cyclictest0-21swapper/512:15:025
416171299130,13cyclictest0-21swapper/511:22:145
416171299130,13cyclictest0-21swapper/511:01:345
416171299130,13cyclictest0-21swapper/511:01:345
416171299130,13cyclictest0-21swapper/510:28:475
416171299130,13cyclictest0-21swapper/510:14:265
416171299130,13cyclictest0-21swapper/510:00:055
416171299130,13cyclictest0-21swapper/509:11:035
4161707991311,2cyclictest3452001-21kworker/u16:1+events_unbound07:04:034
416172199129,2cyclictest1267-21snmpd07:46:357
416172199128,3cyclictest1267-21snmpd07:05:557
4161721991211,0cyclictest0-21swapper/707:12:477
4161717991210,2cyclictest3452001-21kworker/u16:1+flush-8:007:02:546
416171799120,1cyclictest0-21swapper/607:16:086
4161712991211,1cyclictest0-21swapper/510:19:485
4161712991211,1cyclictest0-21swapper/510:19:485
4161712991210,2cyclictest0-21swapper/510:10:495
416171299120,1cyclictest0-21swapper/510:05:275
416171299120,12cyclictest0-21swapper/508:56:145
416172199115,6cyclictest6045-21gmain07:27:417
4161717991110,1cyclictest0-21swapper/608:57:306
416171799110,11cyclictest0-21swapper/608:44:256
416171799110,11cyclictest0-21swapper/607:37:156
416171799110,11cyclictest0-21swapper/607:37:156
4161712991110,1cyclictest0-21swapper/512:07:095
4161712991110,1cyclictest0-21swapper/509:38:485
4161712991110,1cyclictest0-21swapper/509:38:485
4161712991110,1cyclictest0-21swapper/509:35:205
4161712991110,1cyclictest0-21swapper/508:48:405
4161712991110,1cyclictest0-21swapper/507:35:415
4161712991110,1cyclictest0-21swapper/507:35:415
4161712991110,1cyclictest0-21swapper/507:07:375
416171299110,11cyclictest0-21swapper/508:33:515
416171299110,11cyclictest0-21swapper/508:29:365
416171299110,11cyclictest0-21swapper/508:06:445
416171299110,11cyclictest0-21swapper/507:28:355
416172199105,4cyclictest96-21ksoftirqd/708:17:457
416172199105,4cyclictest96-21ksoftirqd/708:17:457
416172199100,10cyclictest0-21swapper/708:07:397
416171799106,3cyclictest145112-21cat08:32:386
416171299109,1cyclictest0-21swapper/511:29:385
416171299109,1cyclictest0-21swapper/510:55:545
416171299109,1cyclictest0-21swapper/510:25:095
416171299109,1cyclictest0-21swapper/509:17:505
416171299109,1cyclictest0-21swapper/508:00:355
416171299109,1cyclictest0-21swapper/507:49:245
416171299109,1cyclictest0-21swapper/507:14:335
416171299100,0cyclictest0-21swapper/507:02:535
41617179998,1cyclictest0-21swapper/608:22:306
41617179998,1cyclictest0-21swapper/607:27:386
41617129998,1cyclictest0-21swapper/511:38:565
41617129998,1cyclictest0-21swapper/511:38:565
41617129998,1cyclictest0-21swapper/511:08:595
41617129998,1cyclictest0-21swapper/510:52:165
41617129998,1cyclictest0-21swapper/509:01:555
41617129998,1cyclictest0-21swapper/508:19:025
41617129998,1cyclictest0-21swapper/508:19:025
41617179986,2cyclictest38828-21kworker/u16:0+flush-8:008:37:396
41617179984,3cyclictest11372-21ps07:22:396
41617179983,4cyclictest4179285-21grep07:07:426
41617129986,1cyclictest0-21swapper/509:52:405
41617129986,1cyclictest0-21swapper/507:22:355
41617129985,2cyclictest0-21swapper/509:02:425
41617129983,4cyclictest40623-21cut07:37:395
41617129983,4cyclictest229029-21kthreadcore09:12:405
41617129983,4cyclictest132762-21grep08:22:425
41617179975,1cyclictest0-21swapper/608:12:356
41617129976,1cyclictest0-21swapper/511:03:185
41617129976,1cyclictest0-21swapper/510:43:085
41617129974,2cyclictest97265-21hwlatdetect08:07:365
41617129973,3cyclictest165613-21grep08:42:405
41617129972,4cyclictest154424-21fschecks_count08:37:375
41617129972,4cyclictest106873-21sed08:12:395
41617129971,3cyclictest0-21swapper/511:34:015
41617129965,1cyclictest0-21swapper/511:53:555
41617129964,2cyclictest509404-21kworker/u16:3+nfsiod11:47:375
41617129960,3cyclictest0-21swapper/511:22:325
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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