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2026-03-16 - 16:38
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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 Mon Mar 16, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2246922990,0sleep686-21ksoftirqd/612:14:146
46512970,1sleep50-21swapper/510:44:055
3719384996361,2cyclictest3988908-21kworker/u16:1+events_unbound10:28:566
3719376996361,2cyclictest4132661-21kworker/u16:4+events_unbound10:24:144
3719376995553,2cyclictest36576-21kworker/u16:0+events_unbound11:04:104
3719376995451,2cyclictest4119357-21kworker/u16:2+events_unbound10:34:104
371904825342,7sleep60-21swapper/607:03:066
3719376995250,2cyclictest4119357-21kworker/u16:2+events_unbound11:34:144
3719376995250,2cyclictest4119357-21kworker/u16:2+events_unbound11:34:144
3719376995048,2cyclictest3988908-21kworker/u16:1+events_unbound10:13:554
3719376995048,2cyclictest163899-21kworker/u16:3+events_unbound12:29:154
3719376994947,2cyclictest4119357-21kworker/u16:2+events_unbound10:19:154
3719376994947,2cyclictest4119357-21kworker/u16:2+events_unbound10:19:154
3719376994947,2cyclictest105724-21kworker/u16:5+events_unbound12:12:234
3719376994947,2cyclictest105724-21kworker/u16:5+events_unbound12:12:234
371907624939,7sleep50-21swapper/507:03:295
3719376994745,2cyclictest3988908-21kworker/u16:1+events_unbound10:12:234
3719376994745,2cyclictest36576-21kworker/u16:0+events_unbound11:33:274
3719376994644,2cyclictest4119357-21kworker/u16:2+events_unbound11:09:114
3719376994644,2cyclictest248393-21kworker/u16:0+events_unbound12:24:144
3719376994543,2cyclictest3988908-21kworker/u16:1+events_unbound10:59:154
3719376994543,2cyclictest131306-21kworker/u16:1+events_unbound12:04:104
3719384994442,2cyclictest131306-21kworker/u16:1+events_unbound12:24:006
3719384994442,2cyclictest105724-21kworker/u16:5+flush-8:011:54:116
3719376994442,2cyclictest105724-21kworker/u16:5+events_unbound11:45:194
3719376994441,3cyclictest131306-21kworker/u16:1+flush-8:011:54:034
3719376994341,2cyclictest4119357-21kworker/u16:2+events_unbound11:43:234
3719376994341,2cyclictest4119357-21kworker/u16:2+events_unbound11:23:314
3719376994341,2cyclictest3988908-21kworker/u16:1+events_unbound11:18:404
3719376994341,2cyclictest3988908-21kworker/u16:1+events_unbound10:54:574
3719376994341,2cyclictest3988908-21kworker/u16:1+events_unbound10:54:574
3719376994341,2cyclictest3838207-21kworker/u16:2+events_unbound09:07:164
3719376994340,2cyclictest3761468-21kworker/u16:0+events_unbound08:23:454
3719376994240,2cyclictest3838207-21kworker/u16:2+events_unbound09:31:114
37187972427,30sleep70-21swapper/706:59:307
3719376994139,2cyclictest4132661-21kworker/u16:4+events_unbound10:51:124
3719376994139,2cyclictest4132661-21kworker/u16:4+events_unbound10:41:244
3719376994139,2cyclictest4119357-21kworker/u16:2+events_unbound10:44:104
3719376994139,2cyclictest4036597-21kworker/u16:3+events_unbound09:52:394
3719376994139,2cyclictest3988908-21kworker/u16:1+events_unbound09:57:324
3719376994139,2cyclictest105724-21kworker/u16:5+events_unbound12:00:354
3719389994035,4cyclictest650-21systemd-journal10:23:377
3719389994035,4cyclictest650-21systemd-journal10:23:377
3719384994038,2cyclictest4132661-21kworker/u16:4+events_unbound10:53:376
3719384994038,2cyclictest105724-21kworker/u16:5+events_unbound11:39:156
3719376994038,2cyclictest4036597-21kworker/u16:3+flush-8:009:58:474
3719376994038,2cyclictest3894934-21kworker/u16:3+events_unbound09:22:214
3719376994038,2cyclictest105724-21kworker/u16:5+events_unbound11:50:124
3719376994037,2cyclictest163899-21kworker/u16:3+events_unbound12:22:484
371938999390,37cyclictest124-21kswapd012:28:427
3719384993937,2cyclictest4132661-21kworker/u16:4+flush-8:010:33:576
3719376993937,2cyclictest4036597-21kworker/u16:3+events_unbound09:43:334
3719376993937,2cyclictest3988908-21kworker/u16:1+events_unbound10:06:044
3719376993937,2cyclictest3988908-21kworker/u16:1+events_unbound09:37:124
3719376993937,2cyclictest3894934-21kworker/u16:3+events_unbound09:27:574
3719376993937,2cyclictest3838207-21kworker/u16:2+events_unbound09:12:004
3719376993937,2cyclictest131306-21kworker/u16:1+events_unbound12:16:394
3719384993836,2cyclictest105724-21kworker/u16:5+events_unbound11:49:156
3719376993836,2cyclictest3695045-21kworker/u16:2+events_unbound07:44:134
3719389993736,0cyclictest0-21swapper/709:53:557
3719389993732,4cyclictest650-21systemd-journal12:03:377
3719384993735,2cyclictest4119357-21kworker/u16:2+events_unbound11:28:566
3719384993735,2cyclictest4119357-21kworker/u16:2+events_unbound11:23:576
3719384993735,2cyclictest3988908-21kworker/u16:1+flush-8:010:09:046
3719384993734,2cyclictest4132661-21kworker/u16:4+events_unbound10:23:596
3719376993736,1cyclictest3924134-21kworker/u16:0+events_unbound09:16:164
3719376993735,2cyclictest3838207-21kworker/u16:2+events_unbound08:51:094
3719376993735,2cyclictest105724-21kworker/u16:5+events_unbound11:27:374
3719389993630,5cyclictest3866452-21latency_hist08:18:427
3719384993634,2cyclictest4132661-21kworker/u16:4+events_unbound10:42:196
3719384993634,2cyclictest3988908-21kworker/u16:1+events_unbound09:34:526
370995123626,7sleep40-21swapper/406:58:474
3719384993533,2cyclictest131306-21kworker/u16:1+events_unbound12:19:116
3719376993533,2cyclictest4119357-21kworker/u16:2+events_unbound10:30:184
3719376993533,2cyclictest4036597-21kworker/u16:3+events_unbound09:46:004
371938999340,33cyclictest4192741-21date10:43:427
3719384993432,2cyclictest3924134-21kworker/u16:0+events_unbound09:24:156
3719384993432,2cyclictest36576-21kworker/u16:0+events_unbound11:05:196
3719376993432,2cyclictest3838207-21kworker/u16:2+events_unbound08:44:114
3719384993331,2cyclictest248393-21kworker/u16:0+flush-8:012:29:196
3719376993331,2cyclictest2736957-21kworker/u16:4+flush-8:007:53:384
3719376993331,2cyclictest2736957-21kworker/u16:4+events_unbound07:16:204
3719384993230,2cyclictest3988908-21kworker/u16:1+events_unbound11:14:086
3719384993230,2cyclictest131306-21kworker/u16:1+events_unbound12:04:516
3719384993128,2cyclictest4119357-21kworker/u16:2+events_unbound10:18:566
3719384993128,2cyclictest4119357-21kworker/u16:2+events_unbound10:18:566
3719384993128,2cyclictest2736957-21kworker/u16:4+flush-8:007:44:086
371938999300,29cyclictest650-21systemd-journal09:08:377
3719384993028,2cyclictest4119357-21kworker/u16:2+flush-8:011:48:426
3719376993028,2cyclictest2736957-21kworker/u16:4+events_unbound08:23:124
41556652290,0sleep74155666-21ssh10:26:527
3719384992927,2cyclictest3894934-21kworker/u16:3+flush-8:009:18:476
3719384992927,2cyclictest3838207-21kworker/u16:2+events_unbound09:31:286
3719384992927,2cyclictest36576-21kworker/u16:0+flush-8:011:34:286
3719384992927,2cyclictest36576-21kworker/u16:0+flush-8:011:34:286
3719376992927,2cyclictest3838207-21kworker/u16:2+events_unbound08:07:054
3719389992826,1cyclictest0-21swapper/708:08:567
3719384992826,2cyclictest4132661-21kworker/u16:4+events_unbound10:53:576
3719384992826,2cyclictest4132661-21kworker/u16:4+events_unbound10:53:576
3719384992825,3cyclictest131306-21kworker/u16:1+flush-8:011:58:586
3719376992826,2cyclictest3924134-21kworker/u16:0+events_unbound08:56:004
3719376992826,2cyclictest2736957-21kworker/u16:4+events_unbound07:19:534
3719384992725,2cyclictest3988908-21kworker/u16:1+events_unbound10:15:196
3719384992725,2cyclictest3838207-21kworker/u16:2+events_unbound09:15:396
3719384992725,2cyclictest105724-21kworker/u16:5+events_unbound12:13:416
3719384992725,2cyclictest105724-21kworker/u16:5+events_unbound12:13:416
3719376992725,2cyclictest3894934-21kworker/u16:3+events_unbound08:43:204
3719376992725,2cyclictest3838207-21kworker/u16:2+events_unbound08:37:524
3719376992725,2cyclictest3838207-21kworker/u16:2+events_unbound08:30:484
3719376992725,2cyclictest3695045-21kworker/u16:2+events_unbound07:23:444
3719376992725,2cyclictest2736957-21kworker/u16:4+events_unbound07:41:564
3719384992624,2cyclictest3988908-21kworker/u16:1+events_unbound09:55:196
3719376992624,2cyclictest2736957-21kworker/u16:4+events_unbound07:54:444
40911622250,1sleep70-21swapper/709:59:027
3719384992523,2cyclictest3988908-21kworker/u16:1+flush-8:009:39:166
3719379992523,2cyclictest4119357-21kworker/u16:2+events_unbound10:31:035
3719379992523,2cyclictest4119357-21kworker/u16:2+events_unbound10:16:595
3719376992523,2cyclictest2736957-21kworker/u16:4+events_unbound08:16:454
3719384992422,2cyclictest4132661-21kworker/u16:4+flush-8:010:43:496
3719384992422,2cyclictest3988908-21kworker/u16:1+flush-8:011:09:086
3719384992422,2cyclictest3924134-21kworker/u16:0+flush-8:010:03:486
3719379992422,2cyclictest3924134-21kworker/u16:0+events_unbound09:51:115
3719379992422,2cyclictest3695045-21kworker/u16:2+events_unbound07:34:175
3719376992422,2cyclictest3637057-21kworker/u16:0+events_unbound07:03:444
3719389992318,4cyclictest650-21systemd-journal11:13:427
3719384992321,2cyclictest3838207-21kworker/u16:2+events_unbound09:06:126
3719379992321,2cyclictest4036597-21kworker/u16:3+events_unbound09:45:425
3719376992321,2cyclictest2736957-21kworker/u16:4+events_unbound07:12:534
328372230,1chrt32836-21ssh10:54:257
328372230,1chrt32836-21ssh10:54:257
371938999220,21cyclictest4108546-21latency_hist10:08:437
371938999220,20cyclictest650-21systemd-journal08:38:437
3719384992220,2cyclictest4119357-21kworker/u16:2+flush-8:011:19:026
3719384992220,2cyclictest3924134-21kworker/u16:0+flush-8:008:55:256
3719384992220,2cyclictest3924134-21kworker/u16:0+events_unbound09:13:046
3719379992220,2cyclictest3924134-21kworker/u16:0+events_unbound09:32:045
3719379992220,2cyclictest3894934-21kworker/u16:3+events_unbound09:21:055
3719379992220,2cyclictest105724-21kworker/u16:5+events_unbound11:58:285
3719379992219,2cyclictest3838207-21kworker/u16:2+events_unbound08:43:455
1529772220,1chrt5417-21sshd11:44:187
3719389992119,1cyclictest3742269-21awk07:13:437
3719389992118,2cyclictest0-21swapper/709:24:087
3719384992119,2cyclictest4119357-21kworker/u16:2+events_unbound11:01:206
3719384992119,2cyclictest3924134-21kworker/u16:0+events_unbound09:48:116
3719384992118,2cyclictest3695045-21kworker/u16:2+flush-8:007:39:036
3719379992119,2cyclictest4036597-21kworker/u16:3+events_unbound09:40:145
3719379992119,2cyclictest3988908-21kworker/u16:1+events_unbound10:52:275
3719379992119,2cyclictest36576-21kworker/u16:0+events_unbound11:30:165
3719379992119,2cyclictest36576-21kworker/u16:0+events_unbound11:25:195
3719376992118,2cyclictest2736957-21kworker/u16:4+flush-8:007:58:534
371938999209,10cyclictest3985370-21ssh09:14:067
371938999200,19cyclictest105611-21ssh11:25:507
3719384992018,2cyclictest3924134-21kworker/u16:0+events_unbound10:03:246
3719379992018,2cyclictest4119357-21kworker/u16:2+events_unbound11:00:295
3719379992018,2cyclictest4119357-21kworker/u16:2+events_unbound10:25:445
3719379992018,2cyclictest36576-21kworker/u16:0+events_unbound11:14:555
3719379992018,2cyclictest36576-21kworker/u16:0+events_unbound11:07:455
3719379992017,2cyclictest3728836-21kworker/u16:3+events_unbound07:18:455
3719389991918,0cyclictest0-21swapper/707:59:087
3719379991917,2cyclictest4119357-21kworker/u16:2+events_unbound11:11:035
3719379991917,2cyclictest3728836-21kworker/u16:3+events_unbound07:09:575
3719379991917,2cyclictest3695045-21kworker/u16:2+events_unbound07:06:535
3719379991917,2cyclictest163899-21kworker/u16:3+events_unbound12:02:405
3719376991917,2cyclictest3838207-21kworker/u16:2+events_unbound08:10:204
3719376991917,2cyclictest3695045-21kworker/u16:2+events_unbound07:31:564
371938999189,8cyclictest0-21swapper/709:39:057
3719389991815,2cyclictest119250-21munin-run11:33:417
3719384991816,2cyclictest3988908-21kworker/u16:1+events_unbound09:50:416
3719384991816,2cyclictest3838207-21kworker/u16:2+events_unbound08:04:016
3719379991816,2cyclictest3924134-21kworker/u16:0+events_unbound09:27:245
3719379991816,2cyclictest3924134-21kworker/u16:0+events_unbound09:16:495
3719379991816,2cyclictest3838207-21kworker/u16:2+events_unbound08:08:215
3719379991816,2cyclictest2736957-21kworker/u16:4+events_unbound07:28:455
3719379991816,2cyclictest163899-21kworker/u16:3+events_unbound12:15:365
3719379991814,2cyclictest4132661-21kworker/u16:4+events_unbound10:20:495
3719379991814,2cyclictest4132661-21kworker/u16:4+events_unbound10:20:495
3719389991714,2cyclictest1267-21snmpd09:36:497
3719384991715,2cyclictest3761468-21kworker/u16:0+events_unbound08:18:566
3719384991714,2cyclictest3695045-21kworker/u16:2+flush-8:007:33:586
3719379991715,2cyclictest4119357-21kworker/u16:2+events_unbound11:23:395
3719379991715,2cyclictest3988908-21kworker/u16:1+events_unbound09:35:545
3719379991715,2cyclictest36576-21kworker/u16:0+events_unbound11:36:275
3719379991715,2cyclictest36576-21kworker/u16:0+events_unbound11:36:275
3719379991715,2cyclictest105724-21kworker/u16:5+events_unbound11:50:295
371938999168,7cyclictest0-21swapper/709:29:077
371938999167,8cyclictest0-21swapper/712:31:307
3719389991612,3cyclictest1267-21snmpd12:23:287
3719389991612,3cyclictest1267-21snmpd07:49:077
3719389991611,4cyclictest3875984-21latency_hist08:23:427
3719389991610,5cyclictest3933284-21latency_hist08:53:427
371938999160,15cyclictest1267-21snmpd09:13:277
3719379991614,2cyclictest4132661-21kworker/u16:4+events_unbound10:55:365
3719379991614,2cyclictest4132661-21kworker/u16:4+events_unbound10:55:365
3719379991614,2cyclictest3924134-21kworker/u16:0+events_unbound10:08:175
3719379991614,2cyclictest3924134-21kworker/u16:0+events_unbound08:49:125
3719379991614,2cyclictest3838207-21kworker/u16:2+events_unbound08:42:255
3719379991614,2cyclictest3761468-21kworker/u16:0+events_unbound07:54:215
3719379991614,2cyclictest163899-21kworker/u16:3+events_unbound12:11:165
3719379991614,2cyclictest163899-21kworker/u16:3+events_unbound12:11:165
371938999157,7cyclictest0-21swapper/711:57:417
371938999157,7cyclictest0-21swapper/711:48:557
3719389991514,0cyclictest0-21swapper/707:19:067
371938999150,4cyclictest3789137-21chrt07:34:077
371938999150,14cyclictest1267-21snmpd07:29:247
3719384991513,2cyclictest3894934-21kworker/u16:3+events_unbound08:44:016
3719384991513,2cyclictest2736957-21kworker/u16:4+events_unbound07:18:416
3719379991513,2cyclictest3808881-21kworker/u16:1+events_unbound07:48:255
3719379991513,2cyclictest3695045-21kworker/u16:2+events_unbound07:27:445
3719379991513,2cyclictest2736957-21kworker/u16:4+events_unbound08:13:325
3719379991513,2cyclictest2736957-21kworker/u16:4+events_unbound07:53:085
3719379991513,2cyclictest2736957-21kworker/u16:4+events_unbound07:40:095
3719379991513,2cyclictest2736957-21kworker/u16:4+events_unbound07:17:175
3719379991513,2cyclictest131306-21kworker/u16:1+events_unbound12:20:025
3719379991512,2cyclictest5873-21gsd-housekeepin08:24:175
3719376991513,2cyclictest3924134-21kworker/u16:0+events_unbound09:00:164
3719376991513,2cyclictest3924134-21kworker/u16:0+events_unbound09:00:164
371938999147,7cyclictest6344-21gmain10:12:157
371938999147,6cyclictest0-21swapper/711:18:197
371938999147,6cyclictest0-21swapper/710:59:117
371938999147,6cyclictest0-21swapper/710:34:157
371938999147,6cyclictest0-21swapper/710:13:587
371938999146,7cyclictest0-21swapper/711:39:097
371938999146,7cyclictest0-21swapper/710:45:277
371938999146,7cyclictest0-21swapper/709:18:587
371938999146,7cyclictest0-21swapper/708:59:167
371938999146,7cyclictest0-21swapper/708:59:167
371938999140,1cyclictest0-21swapper/707:39:087
371938999140,12cyclictest5436-21crond07:03:447
371938999140,12cyclictest3919690-21tr08:44:037
3719384991412,2cyclictest3876175-21kworker/u16:1+events_unbound08:29:086
3719384991412,2cyclictest3808881-21kworker/u16:1+flush-8:007:49:066
3719384991412,2cyclictest2736957-21kworker/u16:4+flush-8:007:54:066
3719384991410,3cyclictest3894934-21kworker/u16:3+flush-8:008:38:596
3719379991412,2cyclictest5873-21gsd-housekeepin08:16:175
3719379991412,2cyclictest3838207-21kworker/u16:2+events_unbound09:05:115
3719379991412,2cyclictest2736957-21kworker/u16:4+events_unbound08:02:455
3719379991411,2cyclictest4080482-21tr09:54:035
371937999140,1cyclictest0-21swapper/512:32:305
371937999140,14cyclictest0-21swapper/510:35:315
371938999138,4cyclictest1267-21snmpd08:32:207
371938999137,5cyclictest3809171-21latency_hist07:48:437
371938999136,7cyclictest0-21swapper/711:21:517
371938999136,6cyclictest0-21swapper/712:05:267
371938999136,6cyclictest0-21swapper/711:33:437
371938999136,6cyclictest0-21swapper/711:33:437
371938999136,6cyclictest0-21swapper/711:03:447
371938999136,6cyclictest0-21swapper/710:48:437
371938999136,6cyclictest0-21swapper/709:49:207
371938999135,7cyclictest0-21swapper/712:08:467
371938999135,7cyclictest0-21swapper/712:08:467
371938999135,7cyclictest0-21swapper/709:44:047
371938999134,8cyclictest0-21swapper/712:14:397
371938999130,5cyclictest4163514-21kthreadcore10:29:047
3719384991311,2cyclictest2736957-21kworker/u16:4+events_unbound07:11:416
371938499130,1cyclictest0-21swapper/608:26:546
3719379991312,1cyclictest3890754-21grep08:29:005
3719379991311,2cyclictest5873-21gsd-housekeepin08:59:175
3719379991311,2cyclictest5873-21gsd-housekeepin08:59:175
3719379991311,2cyclictest3894934-21kworker/u16:3+events_unbound08:35:565
3719379991311,2cyclictest2736957-21kworker/u16:4+events_unbound08:19:435
3719379991311,1cyclictest3937923-21cut08:54:015
371937999130,13cyclictest0-21swapper/512:26:215
3719376991311,2cyclictest2736957-21kworker/u16:4+events_unbound07:34:154
371938999128,3cyclictest1267-21snmpd08:05:527
371938999128,3cyclictest1267-21snmpd07:27:547
371938999128,3cyclictest1267-21snmpd07:14:577
3719389991210,1cyclictest0-21swapper/708:56:097
371938999120,11cyclictest1267-21snmpd07:56:107
371938999120,10cyclictest1267-21snmpd08:35:417
371938499120,11cyclictest0-21swapper/607:58:506
3719379991211,1cyclictest4085049-21cpu09:58:545
3719379991211,1cyclictest3967436-21cut09:08:585
3719379991211,1cyclictest0-21swapper/511:47:435
3719379991211,1cyclictest0-21swapper/510:11:145
3719379991210,2cyclictest4119357-21kworker/u16:2+events_unbound11:42:505
371938999117,3cyclictest1267-21snmpd08:24:477
3719384991110,1cyclictest0-21swapper/608:15:146
371938499110,11cyclictest0-21swapper/608:10:306
371938499110,11cyclictest0-21swapper/607:28:156
371938499110,0cyclictest0-21swapper/609:00:006
371938499110,0cyclictest0-21swapper/609:00:006
371937999119,2cyclictest4177334-21kworker/u16:0+events_unbound10:40:455
371938499109,1cyclictest0-21swapper/607:19:356
371938499109,1cyclictest0-21swapper/607:08:426
37193849997,2cyclictest3924134-21kworker/u16:0+flush-8:008:49:096
37193849997,2cyclictest3695045-21kworker/u16:2+events_unbound07:28:566
37193799998,1cyclictest0-21swapper/512:03:485
37193849986,2cyclictest3838207-21kworker/u16:2+events_unbound08:35:336
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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