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2026-04-17 - 17:47
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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 rackeslot6.osadl.org (updated Fri Apr 17, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
378607699110102,6cyclictest3860076-21latency_hist11:00:010
378607699110102,6cyclictest3860076-21latency_hist11:00:010
3786080999889,7cyclictest3807005-21latency_hist08:15:011
3786076999383,7cyclictest3844156-21latency_hist10:10:010
3786080998873,13cyclictest3845777-21kworker/u8:3+flush-179:010:19:591
3786076998678,6cyclictest3797206-21latency_hist07:45:000
3786076998372,8cyclictest1213033-21systemd-journal10:30:000
3786080998274,6cyclictest3836199-21latency_hist09:45:011
3786080998274,6cyclictest3836199-21latency_hist09:45:001
3786080998072,6cyclictest1213033-21systemd-journal07:30:221
3786076997971,5cyclictest3790749-21latency_hist07:25:010
3786076997766,9cyclictest1213033-21systemd-journal08:35:010
3786076997571,3cyclictest3834637-21kworker/u8:4+events_unbound09:49:540
3786076997365,7cyclictest3797443-21kworker/u8:1+events_unbound08:05:010
3786076997263,7cyclictest3839372-21latency_hist09:55:010
3786080997165,4cyclictest3887931-21apt-get12:25:021
3786076997167,3cyclictest3810236-21kworker/u8:0+events_unbound08:27:240
3786076997167,3cyclictest3790985-21kworker/u8:2+events_unbound07:49:560
3786076997166,4cyclictest3815047-21kworker/u8:1+events_unbound08:53:440
3786080997061,6cyclictest3829615-21kworker/u8:3+flush-179:009:35:161
3786076997066,3cyclictest3879740-21kworker/u8:1+events_unbound12:34:550
3786076997066,3cyclictest3815047-21kworker/u8:1+events_unbound09:09:550
3786076997066,3cyclictest3815047-21kworker/u8:1+events_unbound08:59:570
3786080996962,5cyclictest3845742-21latency_hist10:15:011
3786076996965,3cyclictest3887391-21kworker/u8:0+events_unbound12:25:240
3786076996965,3cyclictest3790985-21kworker/u8:2+events_unbound07:26:240
3786076996964,4cyclictest3837766-21kworker/u8:0+events_unbound10:03:560
3786076996962,5cyclictest3868040-21latency_hist11:25:020
3786076996864,3cyclictest3852089-21kworker/u8:2+events_unbound11:34:550
3786076996863,4cyclictest3834637-21kworker/u8:4+events_unbound09:59:560
3786076996763,3cyclictest3837766-21kworker/u8:0+events_unbound10:24:550
3786076996763,3cyclictest3823237-21kworker/u8:2+events_unbound09:16:230
3786076996763,3cyclictest3823237-21kworker/u8:2+events_unbound09:16:220
3786080996658,5cyclictest3855304-21latency_hist10:45:011
3786080996656,8cyclictest3821599-21latency_hist09:00:011
3786076996662,3cyclictest3852089-21kworker/u8:2+events_unbound12:07:240
3786076996655,4cyclictest3781206-21kworker/u8:3+events_unbound07:35:030
3786080996556,7cyclictest3883136-21apt-get12:10:101
3786076996556,7cyclictest1213033-21systemd-journal12:25:000
3786084996462,1cyclictest0-21swapper/312:16:593
3786076996460,3cyclictest3790985-21kworker/u8:2+events_unbound08:24:220
3786080996355,6cyclictest3891357-21latency_hist12:35:011
3786076996359,3cyclictest3863292-21kworker/u8:3+events_unbound11:18:230
3786076996358,4cyclictest3879219-21kworker/u8:0+events_unbound11:59:160
3786076996354,6cyclictest3826372-21latency_hist09:15:010
3786080996253,7cyclictest3790985-21kworker/u8:2+flush-179:008:20:001
3786076996258,3cyclictest3823237-21kworker/u8:2+events_unbound09:37:220
3786076996258,3cyclictest3797443-21kworker/u8:1+events_unbound07:51:240
3786076996157,3cyclictest3871197-21kworker/u8:4+events_unbound11:43:220
3786076996157,3cyclictest3852089-21kworker/u8:2+events_unbound11:11:230
3786076996157,3cyclictest3834637-21kworker/u8:4+events_unbound09:43:240
3786076996157,3cyclictest3834637-21kworker/u8:4+events_unbound09:43:240
3786076996157,3cyclictest3785406-21kworker/u8:0+events_unbound07:18:260
3786076996156,4cyclictest3852089-21kworker/u8:2+events_unbound10:52:230
3786076996153,6cyclictest3828239-21apt-get09:20:120
3786080996052,6cyclictest3873068-21latency_hist11:40:011
3786080996052,5cyclictest3852111-21latency_hist10:35:011
3786080996043,15cyclictest3866440-21latency_hist11:20:021
3786076996056,3cyclictest3805141-21kworker/u8:0+events_unbound08:08:220
3786080995951,6cyclictest3829570-21latency_hist09:25:011
3786080995951,6cyclictest3798792-21latency_hist07:50:011
3786076995954,4cyclictest3852089-21kworker/u8:2+events_unbound11:04:090
3786076995854,3cyclictest3852089-21kworker/u8:2+events_unbound12:10:180
3786076995854,3cyclictest3797443-21kworker/u8:1+events_unbound07:57:230
3786076995853,4cyclictest3852089-21kworker/u8:2+events_unbound11:54:230
3786076995848,8cyclictest3886062-21apt-get12:19:590
3786080995754,2cyclictest0-21swapper/112:16:591
3786076995753,3cyclictest3852089-21kworker/u8:2+events_unbound11:38:220
3786080995650,4cyclictest3826627-21apt-get09:15:121
3786080995650,4cyclictest3826627-21apt-get09:15:111
3786080995648,5cyclictest3781206-21kworker/u8:3+events_unbound07:15:231
3786076995652,3cyclictest3810236-21kworker/u8:0+events_unbound08:36:240
3786076995647,7cyclictest3792575-21/usr/sbin/munin07:30:150
3786080995547,6cyclictest3834637-21kworker/u8:4+flush-179:010:00:001
3786076995551,3cyclictest3852089-21kworker/u8:2+events_unbound12:00:020
3786080995445,7cyclictest3801978-21latency_hist08:00:011
3786080995444,8cyclictest3871197-21kworker/u8:4+flush-179:011:50:011
378608099541,37cyclictest714-21Xorg08:53:001
3786080995243,7cyclictest3781206-21kworker/u8:3+events_unbound07:15:021
3786080995127,2cyclictest0-21swapper/110:25:121
3786076995147,3cyclictest3852089-21kworker/u8:2+events_unbound11:48:230
3786076995147,3cyclictest3852089-21kworker/u8:2+events_unbound10:41:230
3786076995147,3cyclictest3842546-21kworker/u8:1+events_unbound10:12:240
3786076995046,3cyclictest3797443-21kworker/u8:1+events_unbound08:17:010
4577091490,13ptp4l441ktimers/307:09:563
3786076994945,3cyclictest3855339-21kworker/u8:1+events_unbound10:49:030
3786080994841,5cyclictest3860322-21/usr/sbin/munin11:00:221
3786076994844,3cyclictest3815047-21kworker/u8:1+events_unbound08:45:020
3786076994843,4cyclictest3842546-21kworker/u8:1+events_unbound10:18:590
3786076994842,5cyclictest3821867-21apt-get09:00:110
3786080994639,4cyclictest3852089-21kworker/u8:2+events_unbound10:35:201
3786080994638,6cyclictest3858476-21latency_hist10:55:011
3786076994642,3cyclictest3852089-21kworker/u8:2+events_unbound10:34:000
3786076994641,4cyclictest3829615-21kworker/u8:3+events_unbound09:33:010
3786076994637,7cyclictest1213033-21systemd-journal09:28:230
3786076994541,3cyclictest3781206-21kworker/u8:3+events_unbound07:11:230
378608199444,38cyclictest0-21swapper/208:39:592
3786080994434,8cyclictest510-21rs:main1
3786076994440,3cyclictest3852089-21kworker/u8:2+events_unbound11:09:080
3786076994440,3cyclictest3852089-21kworker/u8:2+events_unbound10:36:230
3786080994337,5cyclictest3790985-21kworker/u8:2+flush-179:008:30:241
3786080994336,5cyclictest3792369-21systemd-run07:30:001
3786080994333,8cyclictest3878333-21/usr/sbin/munin11:55:151
378608199420,40cyclictest0-21swapper/207:19:592
3786080994235,5cyclictest3790985-21kworker/u8:2+flush-179:008:25:161
3786080994235,4cyclictest3818449-21systemd-run08:50:011
3786080994232,8cyclictest3815047-21kworker/u8:1+flush-179:008:40:211
3786080994231,9cyclictest3823457-21apt-get09:05:111
3786080994231,7cyclictest0-21swapper/111:25:591
3786080994231,7cyclictest0-21swapper/111:25:581
3786076994234,7cyclictest3868294-21apt-get11:25:120
3786076994234,7cyclictest3868294-21apt-get11:25:120
3786076994231,9cyclictest3805961-21diskstats08:10:160
3786084994138,2cyclictest0-21swapper/308:12:593
3786080994137,3cyclictest3878134-21systemd-run11:55:001
3786080994133,6cyclictest1213033-21systemd-journal12:36:211
3786080994133,6cyclictest1213033-21systemd-journal12:36:211
3786084994038,1cyclictest0-21swapper/307:54:593
3786080994035,3cyclictest3823204-21munin-run09:04:591
3786080994034,4cyclictest3861686-21turbostat11:09:541
3786076994036,3cyclictest3887971-21kworker/u8:3+events_unbound12:35:010
3786076994036,3cyclictest3887971-21kworker/u8:3+events_unbound12:35:010
3786076994027,11cyclictest3815498-21apt-get08:40:130
3786080993935,3cyclictest3831168-21turbostat09:34:541
3786080993934,3cyclictest3797243-21systemd-run07:45:001
3786081993835,2cyclictest0-21swapper/208:47:592
378608199380,36cyclictest0-21swapper/212:10:592
378608199380,36cyclictest0-21swapper/208:22:592
378608199380,36cyclictest0-21swapper/208:08:592
3786080993831,5cyclictest3790985-21kworker/u8:2+flush-179:007:55:001
378608099380,37cyclictest0-21swapper/109:28:591
378608499370,35cyclictest0-21swapper/310:10:593
378608499370,35cyclictest0-21swapper/308:05:593
3786081993734,2cyclictest0-21swapper/211:34:592
3786081993734,2cyclictest0-21swapper/210:57:592
3786081993734,2cyclictest0-21swapper/210:57:582
3786081993734,2cyclictest0-21swapper/207:53:592
3786081993734,2cyclictest0-21swapper/207:36:592
3786080993729,6cyclictest3794162-21/usr/sbin/munin07:35:161
378608099370,36cyclictest0-21swapper/107:23:591
3786084993634,1cyclictest0-21swapper/312:06:583
3786084993634,1cyclictest0-21swapper/309:29:553
3786084993634,1cyclictest0-21swapper/307:31:593
378608499360,35cyclictest0-21swapper/312:31:593
378608499360,35cyclictest0-21swapper/312:14:003
3786081993633,2cyclictest0-21swapper/212:07:592
3786081993633,2cyclictest0-21swapper/207:11:592
378608199360,2cyclictest0-21swapper/207:29:552
3786080993633,2cyclictest0-21swapper/110:03:591
3786080993629,5cyclictest3797443-21kworker/u8:1+flush-179:008:00:221
3786080993628,6cyclictest3797443-21kworker/u8:1+events_unbound08:05:131
3786084993533,1cyclictest0-21swapper/311:05:003
3786084993533,1cyclictest0-21swapper/310:24:583
3786084993533,1cyclictest0-21swapper/307:49:553
378608499350,34cyclictest0-21swapper/308:44:553
378608499350,1cyclictest0-21swapper/308:40:003
3786081993532,2cyclictest0-21swapper/211:38:582
3786081993532,2cyclictest0-21swapper/208:40:592
3786080993528,4cyclictest3867487-21kworker/u8:1+flush-179:011:30:161
3786080993527,4cyclictest3842824-21apt-get10:05:131
378608099352,4cyclictest3879962-21apt-get12:00:111
3786084993432,1cyclictest0-21swapper/310:09:583
3786084993432,1cyclictest0-21swapper/309:02:593
3786081993431,2cyclictest0-21swapper/210:53:582
3786081993431,2cyclictest0-21swapper/207:56:592
3786080993432,1cyclictest0-21swapper/111:44:551
4577091330,2ptp4l441ktimers/310:40:123
3786084993331,1cyclictest0-21swapper/312:36:593
3786084993331,1cyclictest0-21swapper/312:36:593
3786084993331,1cyclictest0-21swapper/311:29:553
3786084993331,1cyclictest0-21swapper/311:29:553
3786084993330,2cyclictest0-21swapper/309:23:003
3786080993330,2cyclictest714-21Xorg08:40:001
3786080993329,2cyclictest0-21swapper/110:55:121
3786080993329,2cyclictest0-21swapper/110:55:111
378608099330,1cyclictest0-21swapper/110:50:001
3786084993230,1cyclictest0-21swapper/307:44:593
3786084993229,2cyclictest0-21swapper/308:15:593
3786081993229,2cyclictest0-21swapper/210:39:562
3786081993229,2cyclictest0-21swapper/208:51:592
3786084993129,1cyclictest0-21swapper/309:08:593
3786081993129,1cyclictest0-21swapper/212:34:582
3786081993129,1cyclictest0-21swapper/212:29:592
3786081993129,1cyclictest0-21swapper/209:44:592
3786081993129,1cyclictest0-21swapper/209:44:582
3786081993128,2cyclictest0-21swapper/208:32:592
3786081993128,2cyclictest0-21swapper/208:25:132
3786080993126,4cyclictest3852089-21kworker/u8:2+flush-179:012:05:211
3786080993124,5cyclictest3858455-21kworker/u8:0+flush-179:011:20:201
3786080993123,5cyclictest0-21swapper/112:20:031
3786084993028,1cyclictest0-21swapper/309:47:583
3786084993028,1cyclictest0-21swapper/308:54:003
3786081993027,2cyclictest0-21swapper/211:45:022
378608199300,2cyclictest0-21swapper/209:05:132
378608199300,28cyclictest0-21swapper/208:13:592
3786080993027,2cyclictest0-21swapper/110:22:001
3786080993024,4cyclictest0-21swapper/108:25:001
4577091290,8ptp4l441ktimers/311:40:013
3786084992927,1cyclictest0-21swapper/310:31:003
378608499290,28cyclictest0-21swapper/312:20:123
378608499290,28cyclictest0-21swapper/311:55:113
378608499290,28cyclictest0-21swapper/309:15:143
378608499290,28cyclictest0-21swapper/309:15:143
378608499290,27cyclictest0-21swapper/310:55:113
378608499290,27cyclictest0-21swapper/310:55:113
3786081992926,2cyclictest0-21swapper/211:15:112
3786081992926,2cyclictest0-21swapper/211:10:132
3786081992926,2cyclictest0-21swapper/210:00:112
3786081992926,2cyclictest0-21swapper/208:55:142
378608199290,27cyclictest0-21swapper/210:46:592
378608199290,27cyclictest0-21swapper/210:20:122
3786080992919,6cyclictest0-21swapper/111:15:001
4577091280,8ptp4l441ktimers/308:05:003
4577091280,6ptp4l441ktimers/312:30:003
4577091280,6ptp4l441ktimers/309:45:003
4577091280,6ptp4l441ktimers/309:45:003
3786084992826,1cyclictest0-21swapper/308:30:593
378608499280,27cyclictest0-21swapper/309:35:123
378608499280,26cyclictest0-21swapper/312:00:113
378608499280,26cyclictest0-21swapper/310:25:113
3786081992826,1cyclictest0-21swapper/208:05:002
3786081992825,2cyclictest0-21swapper/212:00:112
3786081992825,2cyclictest0-21swapper/210:05:132
3786081992825,2cyclictest0-21swapper/209:24:002
378608199280,2cyclictest0-21swapper/209:30:132
378608199280,26cyclictest0-21swapper/209:55:152
4577091270,7ptp4l441ktimers/311:45:003
4577091270,6ptp4l441ktimers/309:54:543
4577091270,6ptp4l441ktimers/308:00:003
3786084992725,1cyclictest0-21swapper/310:50:143
3786084992725,1cyclictest0-21swapper/307:19:593
3786084992723,2cyclictest0-21swapper/310:15:593
378608499270,26cyclictest0-21swapper/309:11:593
378608499270,1cyclictest0-21swapper/311:45:033
378608499270,1cyclictest0-21swapper/308:20:133
3786081992724,2cyclictest0-21swapper/210:26:582
3786081992723,2cyclictest0-21swapper/212:18:002
378608199270,24cyclictest0-21swapper/210:45:002
3786080992716,7cyclictest3826371-21cron09:15:001
4577091260,6ptp4l61490irq/134-eno1-TxRx-011:54:573
4577091260,6ptp4l441ktimers/311:35:013
4577091260,6ptp4l441ktimers/311:14:553
4577091260,6ptp4l441ktimers/311:10:013
4577091260,6ptp4l441ktimers/310:40:013
4577091260,6ptp4l441ktimers/310:05:013
4577091260,6ptp4l441ktimers/309:35:013
4577091260,6ptp4l441ktimers/307:30:003
4577091260,5ptp4l441ktimers/309:00:013
4577091260,5ptp4l441ktimers/307:24:563
3786084992624,1cyclictest0-21swapper/308:45:123
378608499260,25cyclictest0-21swapper/311:20:593
378608499260,1cyclictest0-21swapper/309:58:593
4577091250,5ptp4l441ktimers/311:19:553
4577091250,5ptp4l441ktimers/308:29:563
3786084992523,1cyclictest0-21swapper/310:49:553
3786081992522,2cyclictest0-21swapper/210:14:552
3786081992522,2cyclictest0-21swapper/207:43:592
378608199250,2cyclictest0-21swapper/211:57:002
378608199250,2cyclictest0-21swapper/209:00:592
378608199250,1cyclictest0-21swapper/210:34:592
3786080992513,11cyclictest3839374-21munin-run09:55:001
4577091240,5ptp4l61490irq/134-eno1-TxRx-007:40:023
4577091240,4ptp4l441ktimers/307:14:553
3786081992422,1cyclictest0-21swapper/211:54:592
3786081992422,1cyclictest0-21swapper/209:29:592
3786081992421,2cyclictest0-21swapper/209:53:002
3786081992421,2cyclictest0-21swapper/209:49:552
231999230,12rtkit-daemon3784195-21apt-get07:05:050
3786081992220,1cyclictest0-21swapper/212:24:592
3786081992219,2cyclictest0-21swapper/211:26:002
3786081992219,2cyclictest0-21swapper/211:25:592
3786081992219,2cyclictest0-21swapper/210:18:002
3786081992118,2cyclictest0-21swapper/207:22:592
3786081992017,2cyclictest0-21swapper/212:39:592
3786081992017,2cyclictest0-21swapper/212:39:592
3786081992017,2cyclictest0-21swapper/209:35:132
3786081991916,2cyclictest0-21swapper/209:16:592
3786081991916,2cyclictest0-21swapper/209:16:592
3786081991815,2cyclictest0-21swapper/211:03:592
378608099181,15cyclictest3785940-21latency_hist07:10:021
3786081991412,1cyclictest0-21swapper/211:24:582
378608199129,2cyclictest0-21swapper/208:16:592
3786081991210,1cyclictest0-21swapper/211:05:132
37860819996,2cyclictest0-21swapper/209:15:002
37860819996,2cyclictest0-21swapper/207:50:002
37860819996,2cyclictest0-21swapper/207:33:592
37860819974,2cyclictest351rcuc/211:40:142
37860819953,1cyclictest351rcuc/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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