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2026-08-26 - 20:33
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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 Wed Aug 26, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72184499142118,22cyclictest726583-21kworker/u8:3+flush-179:008:20:001
72184499138128,8cyclictest746222-21kworker/u8:0+events_unbound09:20:011
72184099137127,7cyclictest717225-21kworker/u8:0+flush-179:007:20:010
72184099134128,4cyclictest717225-21kworker/u8:0+flush-179:007:25:010
72184099134126,5cyclictest726583-21kworker/u8:3+events_unbound07:55:000
72184099131120,7cyclictest816258-21kworker/u8:0+flush-179:012:15:010
72184499130122,5cyclictest823407-21kworker/u8:1+events_unbound12:40:011
72184499128121,5cyclictest767171-21kworker/u8:3+events_unbound09:40:011
72184499125113,9cyclictest775138-21latency_hist09:55:011
72184499122112,7cyclictest755209-21kworker/u8:1+events_unbound09:00:201
72184499122112,7cyclictest729722-21latency_hist07:35:021
72184099122115,5cyclictest726583-21kworker/u8:3+flush-179:008:20:140
72184499121107,5cyclictest709319-21kworker/u8:2+flush-179:007:50:251
72184099121111,7cyclictest797433-21latency_hist11:05:000
72184499117112,4cyclictest803777-21kworker/u8:1+flush-179:012:10:261
72184499117110,4cyclictest810393-21kworker/u8:3+flush-179:011:45:221
72184499117106,9cyclictest1213033-21systemd-journal08:40:001
72184099117107,7cyclictest805649-21latency_hist11:30:010
72184099117106,8cyclictest803802-21latency_hist11:25:010
7218409911697,16cyclictest789469-21latency_hist10:40:010
72184099116108,5cyclictest746222-21kworker/u8:0+flush-179:009:20:000
72184099115105,6cyclictest778301-21kworker/u8:3+events_unbound10:10:230
72184499114104,7cyclictest726583-21kworker/u8:3+events_unbound08:05:201
72184099114105,6cyclictest771967-21latency_hist09:45:010
72184499113107,4cyclictest794901-21kworker/u8:0+events_unbound11:00:001
72184499113105,6cyclictest726583-21kworker/u8:3+flush-179:008:25:201
72184499111101,7cyclictest738032-21latency_hist08:00:011
7218409911198,10cyclictest1213033-21systemd-journal12:20:000
7218449910998,8cyclictest813598-21latency_hist11:55:011
72184499109102,5cyclictest755209-21kworker/u8:1+flush-179:008:55:251
72184499109100,7cyclictest821798-21kworker/u8:2+flush-179:012:30:191
72184499108100,5cyclictest726583-21kworker/u8:3+events_unbound08:40:141
7218449910798,7cyclictest778301-21kworker/u8:3+flush-179:010:15:191
7218449910693,5cyclictest709319-21kworker/u8:2+flush-179:007:15:221
72184499106100,4cyclictest810393-21kworker/u8:3+events_unbound11:55:231
72184499106100,4cyclictest798999-21kworker/u8:0+flush-179:011:15:241
7218409910699,5cyclictest821798-21kworker/u8:2+flush-179:012:30:200
7218409910695,9cyclictest731618-21latency_hist07:40:020
7218449910498,5cyclictest726583-21kworker/u8:3+events_unbound08:35:001
7218449910498,5cyclictest726583-21kworker/u8:3+events_unbound08:35:001
7218449910497,5cyclictest772002-21kworker/u8:1+events_unbound10:00:241
7218449910496,5cyclictest709319-21kworker/u8:2+flush-179:007:20:131
7218449910296,4cyclictest816258-21kworker/u8:0+events_unbound12:00:241
7218409910295,5cyclictest803777-21kworker/u8:1+flush-179:011:55:000
7218409910294,5cyclictest741180-21kworker/u8:1+events_unbound08:15:010
7218449910195,4cyclictest757826-21kworker/u8:2+flush-179:009:05:241
7218409910195,4cyclictest798999-21kworker/u8:0+flush-179:011:15:010
7218409910193,5cyclictest823407-21kworker/u8:1+flush-179:012:25:230
7218409910095,4cyclictest746222-21kworker/u8:0+flush-179:009:00:010
7218409910091,6cyclictest721787-21kworker/u8:3+events_unbound07:10:230
721844999994,4cyclictest816258-21kworker/u8:0+events_unbound12:15:231
721844999994,4cyclictest771944-21kworker/u8:0+events_unbound09:55:201
721844999994,4cyclictest771944-21kworker/u8:0+events_unbound09:45:251
721844999992,5cyclictest709319-21kworker/u8:2+flush-179:008:00:201
721844999992,4cyclictest816258-21kworker/u8:0+events_unbound12:05:221
721844999991,6cyclictest746245-21latency_hist08:25:021
721840999988,7cyclictest805633-21kworker/u8:2+flush-179:011:49:590
721840999887,7cyclictest757826-21kworker/u8:2+events_unbound09:05:200
721840999791,4cyclictest805626-21kworker/u8:0+flush-179:011:35:170
721844999690,5cyclictest746222-21kworker/u8:0+flush-179:009:10:221
721844999689,5cyclictest772002-21kworker/u8:1+flush-179:010:40:241
721844999689,4cyclictest776715-21kworker/u8:2+flush-179:010:10:101
721844999687,6cyclictest805626-21kworker/u8:0+events_unbound11:40:221
721844999687,6cyclictest805626-21kworker/u8:0+events_unbound11:40:211
721840999689,5cyclictest771944-21kworker/u8:0+flush-179:010:00:160
721844999588,5cyclictest800648-21kworker/u8:3+flush-179:011:20:161
721840999588,5cyclictest772002-21kworker/u8:1+flush-179:010:40:190
721840999587,6cyclictest771944-21kworker/u8:0+flush-179:009:55:170
721840999583,9cyclictest823419-21latency_hist12:25:010
721840999486,5cyclictest810393-21kworker/u8:3+events_unbound11:55:130
721840999483,9cyclictest778590-21apt-get10:05:120
721840999386,4cyclictest729779-21kworker/u8:1+events_unbound07:45:180
721844999287,4cyclictest786524-21kworker/u8:0+flush-179:010:35:251
721844999286,4cyclictest726583-21kworker/u8:3+flush-179:007:40:241
721844999285,5cyclictest721787-21kworker/u8:3+flush-179:007:10:151
721840999287,3cyclictest746222-21kworker/u8:0+flush-179:008:35:220
721840999286,3cyclictest772002-21kworker/u8:1+flush-179:010:20:220
721840999284,5cyclictest709319-21kworker/u8:2+flush-179:008:00:130
72184099920,91cyclictest482-21avahi-daemon09:54:550
721844999184,5cyclictest762178-21kworker/u8:1+flush-179:009:20:161
721844999183,6cyclictest786524-21kworker/u8:0+events_unbound10:30:271
721844999183,6cyclictest786524-21kworker/u8:0+events_unbound10:30:271
721844999183,6cyclictest772002-21kworker/u8:1+flush-179:010:20:211
721840999184,5cyclictest726583-21kworker/u8:3+flush-179:008:45:200
721840999081,6cyclictest747829-21latency_hist08:30:020
721840999072,16cyclictest1213033-21systemd-journal12:37:090
721844998984,4cyclictest805626-21kworker/u8:0+events_unbound11:35:241
721840998983,4cyclictest757826-21kworker/u8:2+flush-179:009:20:210
721840998980,6cyclictest772002-21kworker/u8:1+flush-179:010:25:220
721840998877,9cyclictest1213033-21systemd-journal10:55:010
721844998781,4cyclictest746222-21kworker/u8:0+events_unbound09:30:101
721844998781,4cyclictest741180-21kworker/u8:1+flush-179:008:10:261
721844998778,7cyclictest1213033-21systemd-journal10:50:011
721840998781,4cyclictest746222-21kworker/u8:0+flush-179:009:25:260
721844998681,4cyclictest821798-21kworker/u8:2+events_unbound12:20:261
721844998681,4cyclictest803777-21kworker/u8:1+flush-179:011:25:141
721840998579,5cyclictest741180-21kworker/u8:1+flush-179:008:30:210
721840998579,5cyclictest741180-21kworker/u8:1+flush-179:008:30:210
721840998576,7cyclictest797409-21kworker/u8:2+events_unbound11:05:160
721844998478,5cyclictest746222-21kworker/u8:0+events_unbound09:25:161
721840998475,6cyclictest709319-21kworker/u8:2+flush-179:007:55:250
721840998474,7cyclictest771944-21kworker/u8:0+flush-179:009:45:150
721840998377,4cyclictest741180-21kworker/u8:1+flush-179:008:15:160
721844998276,4cyclictest794901-21kworker/u8:0+events_unbound11:00:171
721844998176,4cyclictest797409-21kworker/u8:2+flush-179:011:05:261
721844998176,4cyclictest772002-21kworker/u8:1+events_unbound10:50:241
721840998175,4cyclictest726583-21kworker/u8:3+flush-179:008:05:160
721844997972,5cyclictest798999-21kworker/u8:0+flush-179:011:10:201
721840997871,5cyclictest805626-21kworker/u8:0+flush-179:011:40:230
721840997871,5cyclictest805626-21kworker/u8:0+flush-179:011:40:230
721840997871,5cyclictest729779-21kworker/u8:1+flush-179:007:40:200
721840997670,4cyclictest757826-21kworker/u8:2+flush-179:009:32:100
721844997471,2cyclictest778301-21kworker/u8:3+events_unbound10:05:251
721844997470,3cyclictest757826-21kworker/u8:2+flush-179:009:40:241
721840997466,6cyclictest746222-21kworker/u8:0+events_unbound08:45:000
721844997368,4cyclictest755209-21kworker/u8:1+events_unbound08:50:261
721844997366,5cyclictest786285-21latency_hist10:30:011
721840997364,6cyclictest767171-21kworker/u8:3+events_unbound09:35:240
721844997266,4cyclictest717225-21kworker/u8:0+flush-179:007:25:211
721840997266,4cyclictest717225-21kworker/u8:0+events_unbound07:30:190
721844997166,4cyclictest803777-21kworker/u8:1+events_unbound11:30:221
721840997166,4cyclictest791100-21kworker/u8:2+events_unbound10:45:260
721840997166,4cyclictest786524-21kworker/u8:0+flush-179:010:30:260
721840997166,4cyclictest786524-21kworker/u8:0+flush-179:010:30:260
721840997166,3cyclictest709319-21kworker/u8:2+flush-179:007:25:150
721844997065,4cyclictest823407-21kworker/u8:1+flush-179:012:25:241
721840996960,7cyclictest798999-21kworker/u8:0+flush-179:011:15:200
721840996761,5cyclictest803777-21kworker/u8:1+events_unbound12:10:010
721840996657,7cyclictest816796-21latency_hist12:05:010
721844996554,9cyclictest752866-21apt-get08:45:101
721844996144,4cyclictest729779-21kworker/u8:1+events_unbound07:45:141
721840996057,2cyclictest0-21swapper/009:04:590
721849995855,1cyclictest0-21swapper/309:04:593
721840995750,5cyclictest778301-21kworker/u8:3+flush-179:010:15:200
4577091550,37ptp4l441ktimers/307:08:263
721844995045,4cyclictest709319-21kworker/u8:2+flush-179:007:35:261
721840995041,7cyclictest755778-21latency_hist08:55:010
721840994945,3cyclictest746222-21kworker/u8:0+flush-179:009:10:210
721849994235,5cyclictest791075-21turbostat10:45:003
721846994238,2cyclictest0-21swapper/210:12:592
721840994237,4cyclictest803777-21kworker/u8:1+flush-179:011:34:040
72184999410,39cyclictest734843-21turbostat07:49:593
721840994136,4cyclictest772002-21kworker/u8:1+events_unbound10:55:230
721849994033,6cyclictest787885-21turbostat10:35:003
721849994033,6cyclictest787885-21turbostat10:35:003
72184999400,38cyclictest754208-21turbostat08:50:003
721849993932,6cyclictest763770-21turbostat09:20:013
72184999390,36cyclictest0-21swapper/309:12:593
72184699398,1cyclictest0-21swapper/212:26:582
72184999380,35cyclictest0-21swapper/310:36:003
721849993731,4cyclictest812025-21turbostat11:49:593
721849993730,5cyclictest724979-21turbostat07:20:003
721846993734,2cyclictest0-21swapper/211:56:592
721849993634,1cyclictest0-21swapper/312:24:553
72184999360,35cyclictest0-21swapper/307:26:593
72184699360,1cyclictest0-21swapper/209:39:552
721849993533,1cyclictest0-21swapper/311:09:593
721849993532,2cyclictest0-21swapper/307:57:003
721849993530,4cyclictest751008-21turbostat08:40:003
721846993532,2cyclictest0-21swapper/211:01:592
721846993532,2cyclictest0-21swapper/208:33:592
721846993532,2cyclictest0-21swapper/208:33:582
72184699350,1cyclictest0-21swapper/208:09:552
4577091350,14ptp4l61490irq/134-eno1-TxRx-010:15:003
721846993430,2cyclictest0-21swapper/210:26:592
721846993430,2cyclictest0-21swapper/209:40:592
721846993331,1cyclictest0-21swapper/211:48:002
721849993230,1cyclictest0-21swapper/309:38:593
72184999320,29cyclictest0-21swapper/307:20:133
721846993229,2cyclictest0-21swapper/207:21:592
721846993228,2cyclictest0-21swapper/210:06:582
72184699320,2cyclictest0-21swapper/211:31:592
721849993126,4cyclictest723368-21turbostat07:15:003
72184999310,28cyclictest0-21swapper/307:30:123
72184999310,27cyclictest0-21swapper/312:35:133
72184999310,26cyclictest0-21swapper/307:50:133
721846993128,2cyclictest0-21swapper/211:54:542
721846993128,2cyclictest0-21swapper/211:41:592
721846993128,2cyclictest0-21swapper/211:41:582
721849993028,1cyclictest0-21swapper/311:58:593
721849993028,1cyclictest0-21swapper/311:25:593
72184999300,1cyclictest0-21swapper/308:10:143
721846993028,1cyclictest0-21swapper/208:59:592
721846993027,2cyclictest0-21swapper/209:20:022
721846993027,2cyclictest0-21swapper/207:35:012
721846993026,2cyclictest0-21swapper/212:35:002
72184699300,2cyclictest0-21swapper/209:20:022
72184699300,28cyclictest0-21swapper/212:05:122
72184699300,28cyclictest0-21swapper/208:00:132
721840993021,7cyclictest721743-21latency_hist07:10:020
4577091300,4ptp4l61490irq/134-eno1-TxRx-011:00:013
721849992927,1cyclictest0-21swapper/311:00:133
721849992927,1cyclictest0-21swapper/309:49:593
721849992927,1cyclictest0-21swapper/309:09:553
721849992927,1cyclictest0-21swapper/307:37:003
721849992924,2cyclictest0-21swapper/310:00:133
72184999290,28cyclictest0-21swapper/308:20:023
72184999290,28cyclictest0-21swapper/308:06:593
72184999290,27cyclictest0-21swapper/312:15:003
72184999290,26cyclictest0-21swapper/311:40:143
72184999290,26cyclictest0-21swapper/311:40:143
72184999290,26cyclictest0-21swapper/309:30:123
721846992926,2cyclictest0-21swapper/208:53:592
721846992926,2cyclictest0-21swapper/208:48:592
721846992926,2cyclictest0-21swapper/208:15:142
721846992925,2cyclictest0-21swapper/211:11:592
721846992925,2cyclictest0-21swapper/207:41:002
72184699290,27cyclictest0-21swapper/212:15:022
72184699290,27cyclictest0-21swapper/211:15:132
72184699290,27cyclictest0-21swapper/207:46:592
72184699290,22cyclictest0-21swapper/212:21:592
4577091290,7ptp4l61490irq/134-eno1-TxRx-008:05:003
4577091290,6ptp4l441ktimers/310:10:003
721849992826,1cyclictest0-21swapper/311:20:133
72184999280,26cyclictest0-21swapper/312:15:013
72184999280,26cyclictest0-21swapper/309:25:143
72184999280,1cyclictest0-21swapper/310:45:593
721846992825,2cyclictest0-21swapper/211:24:582
721846992825,2cyclictest0-21swapper/211:05:122
721846992825,2cyclictest0-21swapper/208:23:592
72184699280,26cyclictest0-21swapper/211:25:012
72184699280,26cyclictest0-21swapper/209:56:592
72184699280,26cyclictest0-21swapper/208:25:132
4577091280,7ptp4l441ktimers/311:20:003
4577091280,7ptp4l441ktimers/310:55:013
4577091280,6ptp4l441ktimers/312:05:003
4577091280,6ptp4l441ktimers/309:55:003
4577091280,6ptp4l441ktimers/309:25:003
4577091280,6ptp4l441ktimers/308:35:003
4577091280,6ptp4l441ktimers/308:35:003
721849992724,2cyclictest747844-21turbostat08:30:013
4577091270,6ptp4l61490irq/134-eno1-TxRx-010:00:003
4577091270,6ptp4l441ktimers/311:55:013
4577091270,6ptp4l441ktimers/310:25:003
4577091270,5ptp4l61490irq/134-eno1-TxRx-012:30:013
4577091270,5ptp4l441ktimers/310:30:013
4577091270,5ptp4l441ktimers/309:00:013
721849992624,1cyclictest0-21swapper/307:41:003
721846992623,2cyclictest0-21swapper/212:13:592
721846992623,2cyclictest0-21swapper/210:39:552
721846992623,2cyclictest0-21swapper/209:45:142
721846992623,2cyclictest0-21swapper/207:58:592
721846992623,2cyclictest0-21swapper/207:27:002
72184699260,24cyclictest0-21swapper/212:03:002
72184699260,24cyclictest0-21swapper/209:02:592
72184699260,24cyclictest0-21swapper/207:52:592
72184699260,1cyclictest0-21swapper/209:30:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-010:20:003
4577091260,5ptp4l441ktimers/312:34:553
4577091260,5ptp4l441ktimers/311:14:563
4577091260,5ptp4l441ktimers/308:44:563
4577091260,5ptp4l441ktimers/308:19:553
721846992522,2cyclictest0-21swapper/209:08:592
72184699250,2cyclictest0-21swapper/210:32:592
72184699250,2cyclictest0-21swapper/210:32:592
4577091250,5ptp4l61490irq/134-eno1-TxRx-011:40:003
4577091250,5ptp4l441ktimers/312:09:563
4577091250,5ptp4l441ktimers/308:54:563
721846992421,2cyclictest0-21swapper/208:40:592
721846992420,2cyclictest0-21swapper/210:00:592
721846992420,2cyclictest0-21swapper/207:31:582
4577091240,4ptp4l61490irq/134-eno1-TxRx-011:34:553
4577091240,4ptp4l61490irq/134-eno1-TxRx-009:44:563
721846992321,1cyclictest0-21swapper/210:54:582
721846992320,2cyclictest0-21swapper/210:46:592
721846992320,2cyclictest0-21swapper/209:12:592
721846992219,2cyclictest0-21swapper/212:35:592
721846992219,2cyclictest0-21swapper/207:18:582
721846992118,2cyclictest0-21swapper/211:38:582
721846992118,2cyclictest0-21swapper/210:42:592
721846992017,2cyclictest0-21swapper/208:38:592
721844992015,4cyclictest0-21swapper/107:10:011
721846991916,2cyclictest0-21swapper/210:22:592
721846991916,2cyclictest0-21swapper/208:12:592
721846991714,2cyclictest0-21swapper/210:18:002
721846991411,2cyclictest0-21swapper/209:25:592
72184699129,2cyclictest0-21swapper/210:57:592
72184699118,2cyclictest0-21swapper/209:51:592
7218469963,2cyclictest0-21swapper/207:11:002
7218469930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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