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2026-04-11 - 17:44
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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 Sat Apr 11, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41004962980,1sleep74100495-21ssh10:22:097
367150925847,7sleep50-21swapper/507:01:115
3671851995653,2cyclictest4112262-21kworker/u16:2+events_unbound10:47:145
41190822550,0sleep74119083-21grep10:27:227
3671856995452,2cyclictest4062801-21kworker/u16:0+events_unbound10:22:296
3671851995452,2cyclictest3964673-21kworker/u16:3+flush-8:009:27:285
367149025444,7sleep40-21swapper/407:00:544
367130325343,7sleep60-21swapper/606:58:156
3671856995148,2cyclictest4026863-21kworker/u16:5+events_unbound10:07:136
3671851995149,2cyclictest52871-21kworker/u16:0+events_unbound11:22:295
3671851995149,2cyclictest4112262-21kworker/u16:2+flush-8:011:27:285
3671851995149,2cyclictest4112262-21kworker/u16:2+events_unbound12:27:165
3671851995048,2cyclictest1273-21kworker/u16:5+flush-8:012:02:295
3671851995048,2cyclictest1273-21kworker/u16:5+flush-8:012:02:295
3671851994946,2cyclictest3990344-21kworker/u16:4+events_unbound09:57:135
3671851994845,2cyclictest1273-21kworker/u16:5+flush-8:012:07:135
3671861994739,7cyclictest650-21systemd-journal08:36:597
3671856994745,2cyclictest4112262-21kworker/u16:2+events_unbound11:02:136
3671851994745,2cyclictest3713695-21kworker/u16:0+events_unbound09:22:295
3671851994745,2cyclictest3713695-21kworker/u16:0+events_unbound09:22:295
3671856994644,2cyclictest4112262-21kworker/u16:2+flush-8:010:32:336
3671856994644,2cyclictest3964673-21kworker/u16:3+events_unbound10:12:296
3671856994643,2cyclictest101251-21kworker/u16:1+events_unbound12:17:126
3671851994643,2cyclictest4112262-21kworker/u16:2+events_unbound11:12:215
3671856994542,2cyclictest4134073-21kworker/u16:1+events_unbound10:52:176
3671851994542,2cyclictest3964673-21kworker/u16:3+events_unbound10:32:005
3671856994442,2cyclictest1273-21kworker/u16:5+flush-8:011:17:326
3671856994441,2cyclictest3941404-21kworker/u16:1+events_unbound09:27:136
3671856994441,2cyclictest1273-21kworker/u16:5+events_unbound11:47:326
3671851994442,2cyclictest4134073-21kworker/u16:1+events_unbound10:37:015
3671851994442,2cyclictest4112262-21kworker/u16:2+events_unbound12:16:415
3671851994442,2cyclictest3990344-21kworker/u16:4+events_unbound09:52:255
3671851994442,2cyclictest3964673-21kworker/u16:3+events_unbound10:08:095
3671851994441,2cyclictest1273-21kworker/u16:5+events_unbound11:37:145
3671851994341,2cyclictest4112262-21kworker/u16:2+events_unbound11:51:015
3671851994341,2cyclictest4062801-21kworker/u16:0+events_unbound10:31:015
3671851994341,2cyclictest3964673-21kworker/u16:3+events_unbound10:22:125
3671851994341,2cyclictest3926600-21kworker/u16:2+flush-8:009:42:285
3671851994341,2cyclictest1273-21kworker/u16:5+events_unbound11:17:285
3671847994341,2cyclictest3926600-21kworker/u16:2+flush-8:009:22:244
3671847994341,2cyclictest3926600-21kworker/u16:2+flush-8:009:22:244
3671856994240,2cyclictest4174749-21kworker/u16:4+events_unbound11:07:326
3671856994239,2cyclictest3913849-21kworker/u16:1+events_unbound09:07:016
3671851994240,2cyclictest3926600-21kworker/u16:2+events_unbound09:17:155
3671861994134,6cyclictest174456-21latency_hist12:11:597
3671856994139,2cyclictest3964673-21kworker/u16:3+flush-8:010:42:286
3671856994139,2cyclictest3964673-21kworker/u16:3+flush-8:010:42:286
3671856994139,2cyclictest3941404-21kworker/u16:1+events_unbound09:19:086
3671856994139,2cyclictest101251-21kworker/u16:1+events_unbound11:59:416
3671856994138,2cyclictest4112262-21kworker/u16:2+events_unbound10:57:166
3671856994138,2cyclictest3964673-21kworker/u16:3+events_unbound10:37:146
3671851994139,2cyclictest4174749-21kworker/u16:4+flush-8:010:52:595
3671851994139,2cyclictest4112262-21kworker/u16:2+events_unbound11:06:375
3671851994139,2cyclictest3713695-21kworker/u16:0+flush-8:007:51:595
3671851994139,2cyclictest1273-21kworker/u16:5+flush-8:011:42:345
3671851994139,2cyclictest1273-21kworker/u16:5+events_unbound12:20:415
3671851994038,2cyclictest3964673-21kworker/u16:3+events_unbound09:32:205
3671851994038,2cyclictest3926600-21kworker/u16:2+events_unbound09:12:125
3671851994038,2cyclictest101251-21kworker/u16:1+events_unbound11:59:455
36714272404,31sleep70-21swapper/707:00:007
3671856993937,2cyclictest4062801-21kworker/u16:0+events_unbound10:17:326
3671851993937,2cyclictest4134073-21kworker/u16:1+events_unbound10:44:015
3671851993937,2cyclictest4134073-21kworker/u16:1+events_unbound10:44:015
3671851993937,2cyclictest3713695-21kworker/u16:0+events_unbound09:41:335
3671851993937,2cyclictest1273-21kworker/u16:5+events_unbound10:59:295
3671856993836,2cyclictest1273-21kworker/u16:5+flush-8:011:52:246
3671856993835,2cyclictest3926600-21kworker/u16:2+events_unbound09:42:316
3671851993836,2cyclictest52871-21kworker/u16:0+events_unbound11:32:195
3671851993836,2cyclictest4112262-21kworker/u16:2+events_unbound12:22:115
3671851993836,2cyclictest3713695-21kworker/u16:0+events_unbound09:47:135
3671851993836,2cyclictest1273-21kworker/u16:5+events_unbound11:11:525
3671856993735,2cyclictest4112262-21kworker/u16:2+flush-8:012:12:196
3671856993735,2cyclictest4112262-21kworker/u16:2+events_unbound11:13:206
3671856993735,2cyclictest101251-21kworker/u16:1+events_unbound12:07:286
3671851993735,2cyclictest4026863-21kworker/u16:5+events_unbound10:17:165
3671856993633,2cyclictest4062801-21kworker/u16:0+events_unbound10:27:186
3671851993634,2cyclictest3926600-21kworker/u16:2+events_unbound09:09:025
3671861993532,2cyclictest650-21systemd-journal11:31:587
3671851993533,2cyclictest3964673-21kworker/u16:3+flush-8:010:12:275
3671856993432,2cyclictest3941404-21kworker/u16:1+events_unbound09:34:256
3671851993433,1cyclictest3990344-21kworker/u16:4+events_unbound10:04:445
3671851993433,1cyclictest3990344-21kworker/u16:4+events_unbound10:04:445
3671856993331,2cyclictest52871-21kworker/u16:0+events_unbound11:39:566
3671856993331,2cyclictest52871-21kworker/u16:0+events_unbound11:25:056
3671856993331,2cyclictest4112262-21kworker/u16:2+events_unbound11:42:276
3671856993331,2cyclictest3964673-21kworker/u16:3+events_unbound10:51:096
3671856993331,2cyclictest3926600-21kworker/u16:2+events_unbound09:24:096
3671856993331,2cyclictest3926600-21kworker/u16:2+events_unbound09:24:096
3671856993331,2cyclictest3713695-21kworker/u16:0+events_unbound09:40:576
3671856993331,2cyclictest3713695-21kworker/u16:0+events_unbound09:02:576
3671856993331,2cyclictest3681621-21kworker/u16:2+flush-8:007:21:596
3671856993330,2cyclictest3733009-21kworker/u16:3+events_unbound09:12:146
3671851993331,2cyclictest3913849-21kworker/u16:1+events_unbound09:05:455
3671851993331,2cyclictest1273-21kworker/u16:5+events_unbound11:56:165
3671851993329,3cyclictest3896141-21diskstats08:57:135
3671847993331,2cyclictest3964673-21kworker/u16:3+events_unbound10:02:254
3671847993331,2cyclictest3964673-21kworker/u16:3+events_unbound10:02:254
3671847993330,2cyclictest3624024-21kworker/u16:1+events_unbound07:07:054
3671856993230,2cyclictest2230377-21kworker/u16:3+flush-8:007:16:596
3671856993230,2cyclictest2230377-21kworker/u16:3+flush-8:007:16:596
3671856993229,2cyclictest3990344-21kworker/u16:4+events_unbound10:02:126
3671856993229,2cyclictest3990344-21kworker/u16:4+events_unbound10:02:126
3671851993229,2cyclictest3681621-21kworker/u16:2+events_unbound07:22:025
3671856993129,2cyclictest52871-21kworker/u16:0+events_unbound11:36:216
3671856993129,2cyclictest4112262-21kworker/u16:2+flush-8:012:27:296
3671856993129,2cyclictest4112262-21kworker/u16:2+flush-8:011:27:156
3671856993129,2cyclictest3964673-21kworker/u16:3+events_unbound09:59:576
3671856993129,2cyclictest3926600-21kworker/u16:2+events_unbound09:51:426
3671856993129,2cyclictest101251-21kworker/u16:1+events_unbound12:04:406
3671856993129,2cyclictest101251-21kworker/u16:1+events_unbound12:04:406
3671851993028,2cyclictest3713695-21kworker/u16:0+flush-8:007:53:015
3671856992927,2cyclictest3964673-21kworker/u16:3+events_unbound09:54:486
3671851992927,2cyclictest3681621-21kworker/u16:2+flush-8:007:41:555
3671847992927,2cyclictest4112262-21kworker/u16:2+flush-8:011:27:524
3671847992927,2cyclictest3713695-21kworker/u16:0+events_unbound08:22:284
3671847992927,2cyclictest3681621-21kworker/u16:2+flush-8:007:17:144
3671847992826,2cyclictest4112262-21kworker/u16:2+events_unbound11:52:444
3671847992826,2cyclictest3733009-21kworker/u16:3+flush-8:009:02:224
3671861992725,1cyclictest3939025-21ssh09:12:547
3671856992725,2cyclictest3733009-21kworker/u16:3+events_unbound08:57:016
3671856992724,2cyclictest3624024-21kworker/u16:1+flush-8:007:07:006
3671856992624,2cyclictest3856766-21kworker/u16:1+events_unbound08:37:016
3671856992624,2cyclictest3713695-21kworker/u16:0+events_unbound07:23:136
3671851992624,2cyclictest3713695-21kworker/u16:0+flush-8:008:01:545
3671847992624,2cyclictest3733009-21kworker/u16:3+flush-8:008:32:184
3671847992624,2cyclictest3713695-21kworker/u16:0+events_unbound09:41:254
3671856992523,2cyclictest3856766-21kworker/u16:1+events_unbound08:54:096
3671856992523,2cyclictest1273-21kworker/u16:5+events_unbound12:22:256
3671851992523,2cyclictest2230377-21kworker/u16:3+events_unbound07:12:025
3671851992523,2cyclictest2230377-21kworker/u16:3+events_unbound07:12:025
3671847992523,2cyclictest3681621-21kworker/u16:2+events_unbound07:22:124
3671861992419,4cyclictest650-21systemd-journal11:06:547
3671861992419,4cyclictest1033-21rs:main7
3671861992418,5cyclictest3770979-21latency_hist07:51:597
3671856992422,2cyclictest3681621-21kworker/u16:2+events_unbound08:06:146
3671851992422,2cyclictest3713695-21kworker/u16:0+flush-8:008:07:255
3671851992422,2cyclictest3681621-21kworker/u16:2+flush-8:007:32:255
3671851992422,2cyclictest2230377-21kworker/u16:3+events_unbound07:20:545
3671847992422,2cyclictest3733009-21kworker/u16:3+flush-8:007:37:284
3671847992421,2cyclictest4062801-21kworker/u16:0+events_unbound10:17:094
3671856992321,2cyclictest3713695-21kworker/u16:0+events_unbound08:12:326
3671856992320,2cyclictest3681621-21kworker/u16:2+events_unbound07:52:126
3671851992321,2cyclictest3856766-21kworker/u16:1+events_unbound08:39:105
3671851992321,2cyclictest3681621-21kworker/u16:2+events_unbound08:13:135
3671851992321,2cyclictest3681621-21kworker/u16:2+events_unbound07:46:095
3671851992320,2cyclictest3681621-21kworker/u16:2+flush-8:008:22:105
3671847992321,2cyclictest4134073-21kworker/u16:1+events_unbound10:42:434
3671847992321,2cyclictest4134073-21kworker/u16:1+events_unbound10:42:434
3671847992321,2cyclictest1273-21kworker/u16:5+events_unbound11:02:434
3671861992219,2cyclictest124-21kswapd008:24:087
3671856992219,2cyclictest3681621-21kworker/u16:2+flush-8:008:17:256
3671847992220,2cyclictest3713695-21kworker/u16:0+events_unbound08:49:224
3671847992220,2cyclictest3713695-21kworker/u16:0+events_unbound08:49:224
3671847992220,2cyclictest3681621-21kworker/u16:2+flush-8:007:42:244
3671847992220,2cyclictest3681621-21kworker/u16:2+events_unbound08:14:444
3671847992119,2cyclictest3681621-21kworker/u16:2+flush-8:007:52:574
3671847992119,2cyclictest3681621-21kworker/u16:2+events_unbound08:06:124
3671861992015,4cyclictest3904791-21latency_hist09:01:597
3671856992018,2cyclictest3713695-21kworker/u16:0+flush-8:008:47:216
3671856992018,2cyclictest3713695-21kworker/u16:0+flush-8:008:47:216
3671856992018,2cyclictest3681621-21kworker/u16:2+events_unbound08:22:536
3671847992018,2cyclictest3713695-21kworker/u16:0+events_unbound08:55:554
3671847992018,2cyclictest3681621-21kworker/u16:2+flush-8:007:12:204
3671847992018,2cyclictest3681621-21kworker/u16:2+flush-8:007:12:204
3671851991917,2cyclictest3856766-21kworker/u16:1+events_unbound08:52:295
3671851991917,2cyclictest3713695-21kworker/u16:0+events_unbound08:36:535
3671851991917,2cyclictest3681621-21kworker/u16:2+events_unbound08:20:135
3671847991917,2cyclictest3856766-21kworker/u16:1+events_unbound08:46:424
3671847991917,2cyclictest3681621-21kworker/u16:2+events_unbound08:18:274
3671847991917,2cyclictest101251-21kworker/u16:1+events_unbound11:57:404
3671861991812,5cyclictest650-21systemd-journal10:16:587
3671861991811,6cyclictest0-21swapper/709:57:197
3671861991810,7cyclictest0-21swapper/712:02:287
3671861991810,7cyclictest0-21swapper/712:02:287
367186199180,8cyclictest4148564-21sh10:41:407
3671851991816,2cyclictest3624024-21kworker/u16:1+events_unbound07:03:505
3671847991816,2cyclictest4134073-21kworker/u16:1+events_unbound10:37:364
3671847991816,2cyclictest4112262-21kworker/u16:2+events_unbound11:51:544
3671861991713,3cyclictest1267-21snmpd10:20:297
3671851991715,2cyclictest2230377-21kworker/u16:3+events_unbound07:11:575
3671847991715,2cyclictest3713695-21kworker/u16:0+flush-8:008:27:184
3671847991714,2cyclictest3681621-21kworker/u16:2+flush-8:007:47:204
3671861991615,0cyclictest0-21swapper/707:22:147
3671861991613,2cyclictest1267-21snmpd08:20:327
3671861991613,2cyclictest0-21swapper/711:21:597
3671861991613,2cyclictest0-21swapper/710:51:597
3671861991611,4cyclictest1267-21snmpd08:09:387
3671851991614,2cyclictest3681621-21kworker/u16:2+events_unbound07:30:465
3671847991614,2cyclictest3913849-21kworker/u16:1+events_unbound09:07:264
3671847991614,2cyclictest3713695-21kworker/u16:0+events_unbound08:08:354
3671847991614,2cyclictest3681621-21kworker/u16:2+events_unbound07:58:354
367186199157,7cyclictest0-21swapper/709:07:187
367186199157,7cyclictest0-21swapper/709:02:187
367186199156,8cyclictest0-21swapper/711:07:397
367186199155,9cyclictest0-21swapper/711:43:317
367186199155,9cyclictest0-21swapper/710:44:217
367186199155,9cyclictest0-21swapper/710:44:217
367186199155,9cyclictest0-21swapper/710:10:097
367186199154,10cyclictest4011385-21ntpq09:42:277
367186199154,10cyclictest198791-21munin-run12:21:597
367186199153,11cyclictest130194-21kthreadcore11:52:187
367186199152,5cyclictest5944-21gmain10:32:367
367186199152,5cyclictest5944-21gmain09:38:367
367186199150,13cyclictest0-21swapper/708:52:237
3671856991513,2cyclictest3733009-21kworker/u16:3+events_unbound08:32:536
3671856991513,2cyclictest3713695-21kworker/u16:0+events_unbound07:50:386
3671856991513,2cyclictest3681621-21kworker/u16:2+events_unbound07:32:106
3671847991513,2cyclictest4112262-21kworker/u16:2+events_unbound12:15:484
3671847991513,2cyclictest3964673-21kworker/u16:3+events_unbound09:52:394
3671847991513,2cyclictest3856766-21kworker/u16:1+events_unbound08:37:504
3671847991513,2cyclictest3733009-21kworker/u16:3+events_unbound08:59:554
3671847991513,2cyclictest3681621-21kworker/u16:2+events_unbound07:32:454
367184799150,1cyclictest0-21swapper/411:45:394
367184799150,1cyclictest0-21swapper/409:20:554
367186199149,4cyclictest0-21swapper/709:47:317
367186199147,6cyclictest3942293-21expr09:17:127
367186199147,6cyclictest121232-21kthreadcore11:47:227
367186199147,6cyclictest0-21swapper/709:22:157
367186199147,6cyclictest0-21swapper/709:22:157
367186199145,8cyclictest0-21swapper/712:28:527
367186199145,8cyclictest0-21swapper/711:57:127
367186199145,8cyclictest0-21swapper/710:03:397
367186199145,8cyclictest0-21swapper/710:03:397
367186199145,8cyclictest0-21swapper/709:53:017
367186199144,9cyclictest4161472-21/usr/sbin/munin10:47:117
367186199144,9cyclictest0-21swapper/710:59:137
367186199144,9cyclictest0-21swapper/709:34:367
367186199143,10cyclictest47785-21kthreadcore11:17:227
367186199143,10cyclictest30380-21grep11:12:187
367186199143,10cyclictest199736-21expr12:22:117
367186199142,11cyclictest91143-21kthreadcore11:37:177
367186199140,4cyclictest175112-21cpuspeed_turbos12:12:127
367186199140,1cyclictest0-21swapper/708:47:237
367186199140,1cyclictest0-21swapper/708:47:237
367186199140,13cyclictest3971795-21grep09:27:217
3671856991412,2cyclictest3733009-21kworker/u16:3+events_unbound08:28:296
3671856991411,2cyclictest3856766-21kworker/u16:1+events_unbound08:42:166
3671851991412,2cyclictest3733009-21kworker/u16:3+events_unbound08:31:135
3671847991413,1cyclictest0-21swapper/411:11:544
3671847991413,1cyclictest0-21swapper/410:47:384
3671847991413,1cyclictest0-21swapper/409:48:124
3671847991412,2cyclictest4062801-21kworker/u16:0+events_unbound10:23:024
367184799140,1cyclictest0-21swapper/409:42:414
367184799140,14cyclictest0-21swapper/412:20:204
367184799140,14cyclictest0-21swapper/412:10:434
367184799140,14cyclictest0-21swapper/411:25:004
367184799140,14cyclictest0-21swapper/410:58:494
367186199135,6cyclictest3817776-21sshd-session08:12:247
367186199130,11cyclictest0-21swapper/707:32:237
367185199139,3cyclictest3867819-21cat08:42:155
3671851991311,2cyclictest3713695-21kworker/u16:0+flush-8:008:47:225
3671851991311,2cyclictest3713695-21kworker/u16:0+flush-8:008:47:225
3671851991311,2cyclictest3681621-21kworker/u16:2+events_unbound08:03:155
3671847991312,1cyclictest0-21swapper/411:38:054
3671847991311,2cyclictest4112262-21kworker/u16:2+events_unbound12:30:044
3671847991311,2cyclictest4112262-21kworker/u16:2+events_unbound10:53:374
3671847991311,2cyclictest3990344-21kworker/u16:4+events_unbound10:00:014
3671847991311,2cyclictest3713695-21kworker/u16:0+flush-8:009:36:544
3671847991311,2cyclictest3624024-21kworker/u16:1+events_unbound07:02:244
3671847991311,2cyclictest1273-21kworker/u16:5+flush-8:012:22:154
367186199129,2cyclictest1267-21snmpd07:54:377
367186199129,2cyclictest1267-21snmpd07:07:137
367186199125,6cyclictest924-21NetworkManager08:27:177
3671861991210,1cyclictest0-21swapper/707:27:277
367186199120,11cyclictest3867296-21cpuspeed_turbos08:42:127
367186199120,11cyclictest1267-21snmpd07:37:047
367186199120,11cyclictest0-21swapper/707:02:477
3671856991210,2cyclictest3681621-21kworker/u16:2+events_unbound07:46:186
3671856991210,2cyclictest3681621-21kworker/u16:2+events_unbound07:31:496
3671847991210,2cyclictest52871-21kworker/u16:0+events_unbound11:32:134
3671847991210,2cyclictest3926600-21kworker/u16:2+events_unbound09:12:454
3671847991210,2cyclictest1273-21kworker/u16:5+events_unbound11:12:174
367186199118,2cyclictest1267-21snmpd08:38:447
367186199118,2cyclictest1267-21snmpd07:59:477
367186199115,5cyclictest1267-21snmpd07:42:137
367186199114,6cyclictest3792588-21cut08:02:177
367186199111,9cyclictest0-21swapper/707:12:177
367186199111,9cyclictest0-21swapper/707:12:177
367186199110,1cyclictest0-21swapper/707:18:367
367185699119,2cyclictest3733009-21kworker/u16:3+events_unbound07:38:166
367185699119,2cyclictest3713695-21kworker/u16:0+flush-8:008:07:546
367185699118,2cyclictest3624024-21kworker/u16:1+flush-8:007:02:216
3671856991110,1cyclictest0-21swapper/607:58:356
367184799119,2cyclictest4062801-21kworker/u16:0+events_unbound10:15:414
367184799119,2cyclictest3964673-21kworker/u16:3+flush-8:010:32:154
367184799119,2cyclictest3964673-21kworker/u16:3+events_unbound10:08:014
367184799119,2cyclictest3941404-21kworker/u16:1+events_unbound09:30:284
367184799119,2cyclictest3681621-21kworker/u16:2+flush-8:007:27:204
3671847991110,1cyclictest0-21swapper/412:04:534
3671847991110,1cyclictest0-21swapper/412:04:534
3671847991110,1cyclictest0-21swapper/411:17:264
36718479997,2cyclictest3964673-21kworker/u16:3+events_unbound10:27:054
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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