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2026-03-18 - 11:50
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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 Mar 18, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
360508825040,7sleep50-21swapper/519:00:075
626589480,42rtkit-daemon0-21swapper/619:00:576
3605627994745,2cyclictest27980-21kworker/u16:3+events_unbound23:44:036
3605627994644,2cyclictest3656974-21kworker/u16:3+events_unbound19:49:016
3605627994644,2cyclictest3656974-21kworker/u16:3+events_unbound19:49:016
3605627994643,2cyclictest3809981-21kworker/u16:3+events_unbound22:08:376
3605627994542,2cyclictest4125518-21kworker/u16:0+flush-8:000:13:526
360513424534,7sleep40-21swapper/419:00:464
3605632994438,5cyclictest650-21systemd-journal22:53:217
3605627994442,2cyclictest4125518-21kworker/u16:0+events_unbound23:31:586
3605626994442,2cyclictest4162962-21kworker/u16:1+events_unbound00:02:505
3605626994442,2cyclictest4063074-21kworker/u16:4+events_unbound22:57:185
3605626994341,2cyclictest3809981-21kworker/u16:3+events_unbound21:44:055
3605626994341,2cyclictest27980-21kworker/u16:3+events_unbound23:50:105
3605627994240,2cyclictest27980-21kworker/u16:3+events_unbound23:52:416
3605626994240,2cyclictest4125518-21kworker/u16:0+events_unbound23:41:345
3605626994240,2cyclictest3981836-21kworker/u16:0+events_unbound22:42:275
3605626994240,2cyclictest3981836-21kworker/u16:0+events_unbound22:16:025
3605627994139,2cyclictest4162962-21kworker/u16:1+events_unbound23:55:346
3605627994139,2cyclictest4162962-21kworker/u16:1+events_unbound00:11:506
3605627994139,2cyclictest4053832-21kworker/u16:3+events_unbound23:27:186
3605627994138,2cyclictest3799921-21kworker/u16:2+events_unbound21:38:376
3605626994139,2cyclictest4125518-21kworker/u16:0+events_unbound23:14:135
3605626994139,2cyclictest3967813-21kworker/u16:5+events_unbound22:21:465
3605627994038,2cyclictest4125518-21kworker/u16:0+events_unbound23:05:076
3605627994038,2cyclictest107869-21kworker/u16:4+events_unbound00:19:056
3605627994037,2cyclictest4125518-21kworker/u16:0+events_unbound00:07:186
3605626994038,2cyclictest4101349-21kworker/u16:2+events_unbound23:02:025
3605626994038,2cyclictest3809981-21kworker/u16:3+events_unbound22:11:135
3605626994038,2cyclictest27980-21kworker/u16:3+events_unbound23:54:515
3605626994038,2cyclictest27980-21kworker/u16:3+events_unbound00:06:255
3605626994037,3cyclictest4125518-21kworker/u16:0+events_unbound23:27:015
36052492405,31sleep70-21swapper/719:02:257
3605627993937,2cyclictest3981836-21kworker/u16:0+events_unbound22:40:146
3605627993937,2cyclictest3799921-21kworker/u16:2+events_unbound21:25:156
3605626993937,2cyclictest4125518-21kworker/u16:0+events_unbound00:24:595
3605626993937,2cyclictest3967813-21kworker/u16:5+events_unbound21:56:305
3605626993937,2cyclictest3967813-21kworker/u16:5+events_unbound21:56:305
3605626993937,2cyclictest3886243-21kworker/u16:4+events_unbound21:42:275
3605626993937,2cyclictest27980-21kworker/u16:3+events_unbound23:46:335
3605627993836,2cyclictest4162962-21kworker/u16:1+events_unbound00:28:016
3605627993836,2cyclictest4101349-21kworker/u16:2+events_unbound23:03:066
3605627993836,2cyclictest4053832-21kworker/u16:3+events_unbound22:58:176
3605627993836,2cyclictest3967813-21kworker/u16:5+events_unbound22:03:306
3605626993836,2cyclictest4125518-21kworker/u16:0+events_unbound23:22:375
3605626993836,2cyclictest4125518-21kworker/u16:0+events_unbound00:20:375
3605626993836,2cyclictest4125518-21kworker/u16:0+events_unbound00:09:095
3605626993836,2cyclictest4053832-21kworker/u16:3+events_unbound22:47:105
3605626993836,2cyclictest3886243-21kworker/u16:4+events_unbound21:36:435
3605626993836,2cyclictest3809981-21kworker/u16:3+events_unbound21:20:015
3605627993735,2cyclictest4053832-21kworker/u16:3+events_unbound23:16:536
3605627993735,2cyclictest3981836-21kworker/u16:0+events_unbound22:48:276
3605627993735,2cyclictest3981836-21kworker/u16:0+events_unbound22:22:586
3605627993735,2cyclictest3874333-21kworker/u16:0+events_unbound21:21:196
3605627993735,2cyclictest3799921-21kworker/u16:2+events_unbound21:46:186
3605627993735,2cyclictest3799921-21kworker/u16:2+events_unbound21:32:496
3605627993735,2cyclictest3799921-21kworker/u16:2+events_unbound21:10:246
3605627993634,2cyclictest49055-21kworker/u16:2+events_unbound00:02:016
3605627993634,2cyclictest3967813-21kworker/u16:5+events_unbound21:57:266
3605627993634,2cyclictest3967813-21kworker/u16:5+events_unbound21:57:266
3605627993634,2cyclictest3799921-21kworker/u16:2+events_unbound22:08:296
3605627993634,2cyclictest13158-21kworker/u16:4+events_unbound23:42:546
3605626993634,2cyclictest4162962-21kworker/u16:1+events_unbound00:30:495
3605626993634,2cyclictest4162962-21kworker/u16:1+events_unbound00:30:495
3605626993634,2cyclictest3981836-21kworker/u16:0+events_unbound22:32:375
3605626993634,2cyclictest3809981-21kworker/u16:3+events_unbound21:17:345
3605626993634,2cyclictest3809981-21kworker/u16:3+events_unbound21:17:345
3605626993634,2cyclictest3809981-21kworker/u16:3+events_unbound21:11:425
3605632993534,0cyclictest0-21swapper/722:12:177
3605627993533,2cyclictest4063074-21kworker/u16:4+events_unbound22:38:136
3605627993533,2cyclictest3838427-21kworker/u16:1+events_unbound21:15:456
3605627993533,2cyclictest3838427-21kworker/u16:1+events_unbound21:15:456
3605626993533,2cyclictest3981836-21kworker/u16:0+events_unbound22:51:345
3605626993533,2cyclictest3981836-21kworker/u16:0+events_unbound22:36:185
3605632993430,3cyclictest124-21kswapd023:43:497
3605627993432,2cyclictest4162962-21kworker/u16:1+events_unbound00:29:156
3605627993432,2cyclictest4162962-21kworker/u16:1+events_unbound00:29:156
3605627993432,2cyclictest3799921-21kworker/u16:2+events_unbound20:40:136
3605626993432,2cyclictest3799921-21kworker/u16:2+events_unbound22:26:125
3605626993432,2cyclictest3799921-21kworker/u16:2+events_unbound21:32:555
3605622993432,2cyclictest3809981-21kworker/u16:3+events_unbound21:43:554
3605627993331,2cyclictest4063074-21kworker/u16:4+events_unbound23:10:086
3605627993331,2cyclictest3886243-21kworker/u16:4+events_unbound21:36:536
3605627993331,2cyclictest3799921-21kworker/u16:2+flush-8:021:04:296
3605627993331,2cyclictest3799921-21kworker/u16:2+events_unbound22:24:266
3605627993331,2cyclictest3714272-21kworker/u16:1+flush-8:020:29:056
3605626993331,2cyclictest4125518-21kworker/u16:0+events_unbound23:33:265
3605626993331,2cyclictest4125518-21kworker/u16:0+events_unbound00:15:365
3605626993330,2cyclictest3799921-21kworker/u16:2+events_unbound20:53:465
3605632993231,0cyclictest0-21swapper/700:27:247
3605632993226,5cyclictest3723795-21latency_hist20:03:377
3605627993230,2cyclictest4063074-21kworker/u16:4+events_unbound22:52:006
3605627993230,2cyclictest4053832-21kworker/u16:3+events_unbound23:21:076
3605626993230,2cyclictest4125518-21kworker/u16:0+events_unbound23:36:595
3605626993230,2cyclictest3656974-21kworker/u16:3+flush-8:019:49:055
3605626993230,2cyclictest3656974-21kworker/u16:3+flush-8:019:49:055
3605626993230,2cyclictest3586357-21kworker/u16:1+events_unbound19:17:115
3605622993230,2cyclictest3714272-21kworker/u16:1+events_unbound20:23:364
3605627993129,2cyclictest4125518-21kworker/u16:0+events_unbound23:35:196
3605627993129,2cyclictest3967813-21kworker/u16:5+flush-8:022:14:096
3605627993129,2cyclictest3695478-21kworker/u16:0+events_unbound19:58:396
3605627993129,2cyclictest3586357-21kworker/u16:1+events_unbound19:30:116
3605627993129,2cyclictest3339652-21kworker/u16:0+events_unbound19:25:026
3605627993129,2cyclictest3339652-21kworker/u16:0+events_unbound19:22:516
3605627993129,2cyclictest3339652-21kworker/u16:0+events_unbound19:14:116
3605626993129,2cyclictest3714272-21kworker/u16:1+events_unbound20:14:465
3605622993129,2cyclictest4162962-21kworker/u16:1+flush-8:023:58:364
3605622993129,2cyclictest3799921-21kworker/u16:2+flush-8:022:03:564
3605632993029,0cyclictest0-21swapper/723:49:137
3605632993029,0cyclictest0-21swapper/723:00:407
3605627993029,1cyclictest3809981-21kworker/u16:3+events_unbound21:51:236
3605627993028,2cyclictest3714272-21kworker/u16:1+events_unbound20:25:476
3605627993028,2cyclictest3695478-21kworker/u16:0+events_unbound20:13:346
3605626993028,2cyclictest4063074-21kworker/u16:4+events_unbound23:09:105
3605626993028,2cyclictest4063074-21kworker/u16:4+events_unbound23:04:095
3605626993028,2cyclictest3809981-21kworker/u16:3+events_unbound21:59:555
3605626993028,2cyclictest3809981-21kworker/u16:3+events_unbound21:49:515
3605626993028,2cyclictest3809981-21kworker/u16:3+events_unbound21:25:085
3605626993028,2cyclictest3799921-21kworker/u16:2+events_unbound21:06:405
3605626993028,2cyclictest3781194-21kworker/u16:0+events_unbound20:35:475
3605626993028,2cyclictest3781194-21kworker/u16:0+events_unbound20:35:475
3605626993028,2cyclictest3339652-21kworker/u16:0+events_unbound19:12:515
3605632992928,0cyclictest0-21swapper/719:53:387
3605627992927,2cyclictest3809981-21kworker/u16:3+events_unbound20:48:586
3605627992927,2cyclictest3799921-21kworker/u16:2+events_unbound22:32:566
3605627992927,2cyclictest3781194-21kworker/u16:0+events_unbound20:38:106
3605627992927,2cyclictest3781194-21kworker/u16:0+events_unbound20:38:106
3605627992927,2cyclictest3586357-21kworker/u16:1+events_unbound19:36:116
3605626992927,2cyclictest3714272-21kworker/u16:1+events_unbound20:41:025
3605622992927,2cyclictest4101349-21kworker/u16:2+events_unbound22:53:534
3605622992927,2cyclictest3874333-21kworker/u16:0+flush-8:021:23:314
3605622992927,2cyclictest3799921-21kworker/u16:2+events_unbound21:08:544
3605632992827,1cyclictest0-21swapper/721:50:087
3605632992827,0cyclictest0-21swapper/721:20:077
3605627992826,2cyclictest3685728-21kworker/u16:4+events_unbound19:45:436
3605627992826,2cyclictest3684524-21kworker/u16:2+events_unbound19:41:476
3605627992826,2cyclictest3339652-21kworker/u16:0+events_unbound19:08:146
3605626992826,2cyclictest3809981-21kworker/u16:3+flush-8:022:04:255
3605626992826,2cyclictest3656974-21kworker/u16:3+events_unbound20:00:115
3605622992826,2cyclictest27980-21kworker/u16:3+events_unbound23:58:544
3605632992727,0cyclictest0-21swapper/700:32:317
3605632992727,0cyclictest0-21swapper/700:32:317
3605632992726,0cyclictest0-21swapper/721:44:287
3605632992726,0cyclictest0-21swapper/720:52:437
3605632992726,0cyclictest0-21swapper/719:28:067
3605632992720,5cyclictest650-21systemd-journal20:18:377
3605626992725,2cyclictest3714272-21kworker/u16:1+events_unbound20:19:435
3605626992725,2cyclictest3695478-21kworker/u16:0+events_unbound20:12:475
3605626992725,2cyclictest3656974-21kworker/u16:3+events_unbound19:46:595
3605626992725,2cyclictest3339652-21kworker/u16:0+events_unbound19:08:065
3605622992725,2cyclictest4053832-21kworker/u16:3+flush-8:023:03:554
3605632992626,0cyclictest0-21swapper/721:14:217
3605632992626,0cyclictest0-21swapper/721:14:217
3605632992625,0cyclictest0-21swapper/719:35:107
3605627992624,2cyclictest3781194-21kworker/u16:0+events_unbound20:45:476
3605627992624,2cyclictest3714272-21kworker/u16:1+events_unbound20:20:506
3605626992624,2cyclictest3695478-21kworker/u16:0+events_unbound19:55:435
3605626992624,2cyclictest3586357-21kworker/u16:1+events_unbound19:35:065
143142260,0chrt14315-21sh23:36:147
3605632992524,0cyclictest0-21swapper/719:31:067
3605626992523,2cyclictest3781194-21kworker/u16:0+events_unbound20:46:145
3605626992523,2cyclictest3752833-21kworker/u16:4+events_unbound20:28:235
3605626992523,2cyclictest3586357-21kworker/u16:1+events_unbound19:31:435
3605632992424,0cyclictest0-21swapper/723:09:197
3605632992424,0cyclictest0-21swapper/722:04:037
3605632992423,0cyclictest0-21swapper/720:32:147
3605632992423,0cyclictest0-21swapper/719:08:107
3605632992422,1cyclictest0-21swapper/720:33:587
3605632992422,1cyclictest0-21swapper/720:33:587
3605627992422,2cyclictest3819698-21kworker/u16:0+events_unbound20:55:356
3605627992422,2cyclictest3695478-21kworker/u16:0+events_unbound19:58:356
3605627992422,2cyclictest3656974-21kworker/u16:3+events_unbound20:05:476
3605626992422,2cyclictest3339652-21kworker/u16:0+flush-8:019:41:025
3605622992422,2cyclictest3967813-21kworker/u16:5+events_unbound22:08:564
3605622992422,2cyclictest3695478-21kworker/u16:0+flush-8:020:04:024
3605622992422,2cyclictest27980-21kworker/u16:3+flush-8:000:09:014
3605622992421,2cyclictest3809981-21kworker/u16:3+events_unbound21:58:504
3605622992421,2cyclictest3586357-21kworker/u16:1+flush-8:019:03:524
3605627992321,2cyclictest3799921-21kworker/u16:2+events_unbound21:00:136
3605626992321,2cyclictest3714272-21kworker/u16:1+events_unbound20:49:265
3605622992321,2cyclictest3809981-21kworker/u16:3+flush-8:021:28:574
3605632992221,0cyclictest0-21swapper/722:53:437
3605632992221,0cyclictest0-21swapper/720:23:187
3605632992221,0cyclictest0-21swapper/720:04:317
3605626992220,2cyclictest3695478-21kworker/u16:0+events_unbound20:06:555
3605622992220,2cyclictest3695478-21kworker/u16:0+flush-8:019:53:364
3605622992220,2cyclictest3695478-21kworker/u16:0+flush-8:019:53:364
3605622992220,2cyclictest27980-21kworker/u16:3+flush-8:023:44:024
3605632992120,0cyclictest0-21swapper/719:51:317
3605632992120,0cyclictest0-21swapper/719:51:317
3605632992120,0cyclictest0-21swapper/719:22:067
3605632992120,0cyclictest0-21swapper/719:16:227
3605632992116,4cyclictest27441-21latency_hist23:43:377
3605632992114,6cyclictest0-21swapper/722:33:367
3605627992119,2cyclictest3714272-21kworker/u16:1+events_unbound20:15:226
3605626992119,2cyclictest3799921-21kworker/u16:2+events_unbound20:58:585
3605626992119,2cyclictest3656974-21kworker/u16:3+events_unbound20:31:235
3605626992119,2cyclictest3586357-21kworker/u16:1+events_unbound19:28:125
3605626992117,3cyclictest3638217-21munin-node19:18:485
3605622992119,2cyclictest4125518-21kworker/u16:0+flush-8:023:18:424
3605622992119,2cyclictest3714272-21kworker/u16:1+events_unbound20:08:534
3605632992019,0cyclictest0-21swapper/720:56:307
3605632992018,1cyclictest0-21swapper/719:08:517
3605622992018,2cyclictest13158-21kworker/u16:4+events_unbound23:39:114
3605622992017,3cyclictest3809981-21kworker/u16:3+events_unbound20:49:024
3605632991918,0cyclictest0-21swapper/720:27:527
3605632991918,0cyclictest0-21swapper/719:47:217
3605622991917,2cyclictest4053832-21kworker/u16:3+events_unbound23:34:034
360563299189,8cyclictest0-21swapper/722:38:497
3605632991817,0cyclictest0-21swapper/719:41:497
3605622991816,2cyclictest4125518-21kworker/u16:0+events_unbound23:48:544
3605622991816,2cyclictest4053832-21kworker/u16:3+events_unbound22:59:024
3605622991816,2cyclictest3799921-21kworker/u16:2+flush-8:021:03:324
3605622991816,2cyclictest3656974-21kworker/u16:3+events_unbound19:53:584
3605632991716,0cyclictest0-21swapper/720:38:457
360563299170,16cyclictest1267-21snmpd21:32:267
3605627991715,2cyclictest3586357-21kworker/u16:1+events_unbound19:10:196
3605622991715,2cyclictest3967813-21kworker/u16:5+events_unbound22:14:464
3605622991715,2cyclictest3809981-21kworker/u16:3+events_unbound21:24:464
3605622991715,2cyclictest3339652-21kworker/u16:0+events_unbound19:13:504
360562299170,1cyclictest0-21swapper/423:08:594
360563299166,9cyclictest0-21swapper/723:18:597
360563299165,9cyclictest0-21swapper/721:58:507
3605622991614,2cyclictest3967813-21kworker/u16:5+flush-8:022:34:034
3605622991614,2cyclictest3799921-21kworker/u16:2+events_unbound21:04:014
3605622991613,2cyclictest4125518-21kworker/u16:0+flush-8:023:28:514
360563299157,7cyclictest0-21swapper/723:24:027
360563299156,7cyclictest0-21swapper/721:54:047
360563299156,7cyclictest0-21swapper/721:54:047
3605632991514,0cyclictest0-21swapper/721:38:507
3605632991513,1cyclictest0-21swapper/723:03:537
360563299150,14cyclictest0-21swapper/723:29:017
3605622991513,2cyclictest3967813-21kworker/u16:5+flush-8:022:28:574
3605622991512,3cyclictest3981836-21kworker/u16:0+flush-8:022:38:594
360563299147,6cyclictest0-21swapper/723:13:597
360563299147,6cyclictest0-21swapper/700:03:087
360563299146,7cyclictest0-21swapper/722:43:457
360563299146,7cyclictest0-21swapper/722:34:057
360563299146,7cyclictest0-21swapper/722:23:527
360563299146,7cyclictest0-21swapper/721:04:047
360563299145,8cyclictest0-21swapper/722:18:577
360563299145,8cyclictest0-21swapper/722:14:007
3605632991414,0cyclictest0-21swapper/721:37:317
3605632991413,0cyclictest0-21swapper/721:24:027
360563299140,13cyclictest96-21ksoftirqd/721:08:547
360563299140,13cyclictest87086-21turbostat00:08:367
3605622991413,1cyclictest0-21swapper/423:26:434
3605622991412,2cyclictest4063074-21kworker/u16:4+events_unbound22:43:494
3605622991412,2cyclictest3656974-21kworker/u16:3+flush-8:020:13:574
3605622991411,2cyclictest3799921-21kworker/u16:2+flush-8:021:53:424
3605622991411,2cyclictest3799921-21kworker/u16:2+flush-8:021:53:424
360563299138,4cyclictest88368-21cat00:08:517
360563299136,6cyclictest0-21swapper/700:19:297
360563299135,7cyclictest0-21swapper/723:55:347
360563299135,7cyclictest0-21swapper/700:14:447
3605622991312,1cyclictest0-21swapper/421:52:554
360562299130,13cyclictest0-21swapper/422:52:314
360562299130,13cyclictest0-21swapper/400:20:384
360562299130,0cyclictest0-21swapper/421:34:384
360562299130,0cyclictest0-21swapper/400:16:324
3605632991212,0cyclictest0-21swapper/721:02:247
360563299120,1cyclictest0-21swapper/720:09:007
3605622991211,1cyclictest0-21swapper/419:39:044
3605622991211,1cyclictest0-21swapper/400:30:534
3605622991211,1cyclictest0-21swapper/400:30:534
3605622991210,2cyclictest4053832-21kworker/u16:3+flush-8:023:13:514
3605622991210,2cyclictest3752833-21kworker/u16:4+events_unbound20:29:024
3605622991210,2cyclictest27980-21kworker/u16:3+events_unbound00:03:514
360562299120,1cyclictest0-21swapper/419:44:074
360563299118,2cyclictest1267-21snmpd20:48:317
360562299119,2cyclictest3886243-21kworker/u16:4+flush-8:021:38:574
360562299119,2cyclictest3838427-21kworker/u16:1+events_unbound21:14:034
360562299119,2cyclictest3838427-21kworker/u16:1+events_unbound21:14:034
360562299119,2cyclictest3799921-21kworker/u16:2+events_unbound22:23:364
360562299119,2cyclictest3339652-21kworker/u16:0+events_unbound19:34:004
360562299118,2cyclictest1452971-21kworker/u16:2+flush-8:019:23:484
360562299116,4cyclictest3715404-21cat19:58:514
3605622991110,1cyclictest0-21swapper/420:27:194
3605622991110,1cyclictest0-21swapper/419:29:084
3605622991110,1cyclictest0-21swapper/400:26:474
360562299110,1cyclictest0-21swapper/420:55:034
360562299110,11cyclictest0-21swapper/419:09:454
360562299104,6cyclictest0-21swapper/420:43:514
360562299100,9cyclictest0-21swapper/422:23:524
36056229998,1cyclictest0-21swapper/419:19:124
36056229986,2cyclictest3714272-21kworker/u16:1+events_unbound20:38:494
36056229986,1cyclictest0-21swapper/420:34:024
36056229986,1cyclictest0-21swapper/420:34:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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