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2026-04-07 - 04:36
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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 Tue Apr 07, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41819679910996,10cyclictest266-21systemd-journal20:25:000
4181969999974,22cyclictest88272-21latency_hist00:20:011
4181967999587,6cyclictest67229-21latency_hist23:15:020
4181967999284,6cyclictest81807-40logrotate00:00:000
4181967999284,6cyclictest81807-40logrotate00:00:000
4181967999081,6cyclictest31489-21kworker/u8:3+flush-179:021:45:140
4181969998983,5cyclictest624-21kworker/u8:1+events_unbound20:00:001
4181969998680,4cyclictest47653-21kworker/u8:2+flush-179:022:20:251
4181967998273,6cyclictest17132-21latency_hist20:40:000
4181967998175,4cyclictest4191429-21latency_hist19:40:010
4181967998172,6cyclictest2251-21latency_hist19:55:010
4181967997869,7cyclictest57192-21apt-get22:45:000
4181967997769,6cyclictest55563-21kworker/u8:2+flush-179:023:00:010
4181967997766,9cyclictest510-21rs:main0
4181969997670,4cyclictest23738-21kworker/u8:0+flush-179:021:20:251
4181967997569,4cyclictest25631-21kworker/u8:3+flush-179:021:05:170
4181967997465,7cyclictest4192485-21kworker/u8:3+flush-179:020:05:170
4181969997266,4cyclictest67244-21kworker/u8:2+flush-179:023:35:221
4181969997157,12cyclictest31489-21kworker/u8:3+flush-179:022:05:011
4181967997164,5cyclictest59278-21apt-get22:50:120
4181967997162,7cyclictest93013-21latency_hist00:35:010
4181969997065,3cyclictest77285-21kworker/u8:0+flush-179:000:00:091
4181969997057,11cyclictest266-21systemd-journal00:35:141
4181969997056,12cyclictest4192485-21kworker/u8:3+events_unbound20:05:011
4181967997063,5cyclictest4183693-21kworker/u8:2+flush-179:019:15:210
4181967997058,10cyclictest44439-21apt-get22:05:130
4181967996962,4cyclictest89874-21kworker/u8:2+flush-179:000:35:190
4181967996961,6cyclictest55582-21latency_hist22:40:020
4181967996859,6cyclictest45155-21kworker/u8:1+flush-179:022:15:200
4181967996760,5cyclictest82102-21apt-get00:00:120
4181967996760,5cyclictest4192485-21kworker/u8:3+flush-179:020:15:210
4181969996659,5cyclictest67244-21kworker/u8:2+flush-179:000:10:001
4181969996659,5cyclictest67244-21kworker/u8:2+flush-179:000:10:001
4181969996659,5cyclictest31489-21kworker/u8:3+flush-179:021:30:211
4181969996658,6cyclictest65646-21latency_hist23:10:011
4181967996660,4cyclictest5769-21kworker/u8:2+flush-179:021:00:260
4181967996658,5cyclictest15510-21kworker/u8:3+flush-179:020:45:170
4181969996558,5cyclictest89874-21kworker/u8:2+flush-179:000:30:141
4181967996458,4cyclictest23738-21kworker/u8:0+flush-179:021:15:170
4181967996454,8cyclictest75720-21apt-get23:40:100
4181967996356,5cyclictest4181846-21latency_hist19:10:020
4181967996355,5cyclictest67244-21kworker/u8:2+flush-179:023:35:240
4181969996256,5cyclictest23738-21kworker/u8:0+flush-179:021:20:011
4181969996256,4cyclictest34662-21kworker/u8:0+events_unbound21:35:181
4181967996253,7cyclictest31489-21kworker/u8:3+flush-179:021:25:210
4181967996154,5cyclictest34662-21kworker/u8:0+flush-179:021:35:190
4181969995951,6cyclictest510-21rs:main1
4181967995953,4cyclictest86687-21kworker/u8:3+flush-179:000:15:150
4181969995852,5cyclictest45155-21kworker/u8:1+flush-179:022:05:231
4181969995851,5cyclictest14200-21apt-get20:30:101
4181969995849,8cyclictest4192485-21kworker/u8:3+flush-179:020:15:011
4181969995849,7cyclictest4183693-21kworker/u8:2+events_unbound19:20:191
4181967995854,2cyclictest20344-21kworker/u8:1+events_unbound21:00:010
4181967995849,6cyclictest73838-21kworker/u8:1+flush-179:000:05:210
4181967995849,6cyclictest73838-21kworker/u8:1+flush-179:000:05:210
4181967995845,7cyclictest31489-21kworker/u8:3+events_unbound22:10:030
4181967995845,7cyclictest31489-21kworker/u8:3+events_unbound22:10:020
4181973995755,1cyclictest0-21swapper/220:35:002
4181969995751,5cyclictest39429-21kworker/u8:1+events_unbound21:50:231
4181967995750,5cyclictest4183693-21kworker/u8:2+events_unbound19:25:140
4181969995651,4cyclictest23738-21kworker/u8:0+flush-179:021:00:251
4181967995648,6cyclictest47653-21kworker/u8:2+flush-179:022:20:230
4181969995549,4cyclictest57235-21kworker/u8:3+flush-179:022:45:211
4181969995547,5cyclictest67244-21kworker/u8:2+events_unbound23:25:171
4181967995547,7cyclictest624-21kworker/u8:1+events_unbound19:55:020
4181969995447,5cyclictest17135-21kworker/u8:0+flush-179:020:40:151
4181969995444,7cyclictest4181825-21kworker/u8:1+events_unbound19:35:191
4181967995445,7cyclictest31489-21kworker/u8:3+flush-179:021:40:230
4181967995347,5cyclictest31489-21kworker/u8:3+events_unbound22:25:240
4181969995247,4cyclictest89874-21kworker/u8:2+flush-179:000:25:211
4181969995246,5cyclictest57235-21kworker/u8:3+events_unbound23:10:141
4181969995246,4cyclictest67244-21kworker/u8:2+events_unbound23:15:011
4181969995239,11cyclictest81872-21cupsd00:00:021
4181969995239,11cyclictest81872-21cupsd00:00:011
4181967995246,4cyclictest8375-21kworker/u8:0+flush-179:020:25:200
4181967995244,6cyclictest64298-21kworker/u8:0+events_unbound23:20:240
4181967995244,6cyclictest31489-21kworker/u8:3+flush-179:022:30:220
4181967995240,10cyclictest266-21systemd-journal22:49:590
4181969995146,4cyclictest57235-21kworker/u8:3+events_unbound22:55:241
4181969995046,3cyclictest28294-21kworker/u8:2+events_unbound21:25:251
4181969995044,5cyclictest53907-21kworker/u8:1+events_unbound22:35:251
4181969995044,5cyclictest31489-21kworker/u8:3+events_unbound22:30:231
4181969995042,5cyclictest55563-21kworker/u8:2+flush-179:023:00:211
4181967995043,5cyclictest55563-21kworker/u8:2+events_unbound23:00:140
4181969994944,4cyclictest4192485-21kworker/u8:3+events_unbound20:15:181
4181969994943,4cyclictest4192485-21kworker/u8:3+flush-179:019:45:001
4181967994942,5cyclictest39429-21kworker/u8:1+events_unbound21:55:200
4181969994842,4cyclictest4183693-21kworker/u8:2+flush-179:019:30:161
4181969994842,4cyclictest13662-21kworker/u8:1+events_unbound20:30:011
4181969994837,9cyclictest85313-21apt-get00:10:121
4181967994843,4cyclictest64298-21kworker/u8:0+flush-179:023:25:260
4181969994742,4cyclictest77285-21kworker/u8:0+events_unbound23:50:201
4181969994741,4cyclictest39429-21kworker/u8:1+flush-179:021:55:221
4181969994733,7cyclictest15510-21kworker/u8:3+events_unbound20:45:211
4181967994742,4cyclictest31489-21kworker/u8:3+events_unbound21:30:200
4577091460,10ptp4l61490irq/134-eno1-TxRx-019:05:173
4181969994641,4cyclictest67244-21kworker/u8:2+flush-179:023:45:201
4181969994641,4cyclictest45155-21kworker/u8:1+events_unbound22:15:171
4181969994641,4cyclictest20344-21kworker/u8:1+flush-179:020:50:211
4181969994638,6cyclictest7320-21latency_hist20:10:011
418196799460,44cyclictest714-21Xorg20:52:580
4181969994540,4cyclictest681-21kworker/u8:2+events_unbound19:50:241
4181969994540,4cyclictest45155-21kworker/u8:1+flush-179:022:10:261
4181969994540,4cyclictest45155-21kworker/u8:1+flush-179:022:10:261
4181969994539,5cyclictest31489-21kworker/u8:3+flush-179:021:40:231
4181967994540,4cyclictest73838-21kworker/u8:1+events_unbound00:20:240
4181967994538,6cyclictest73838-21kworker/u8:1+flush-179:000:10:250
4181969994439,4cyclictest64298-21kworker/u8:0+events_unbound23:20:131
4181969994439,4cyclictest4183693-21kworker/u8:2+flush-179:019:25:211
4181969994438,5cyclictest4192485-21kworker/u8:3+flush-179:020:22:181
4181967994439,4cyclictest64298-21kworker/u8:0+flush-179:023:30:170
4181975994341,1cyclictest0-21swapper/321:49:593
4181969994334,7cyclictest15788-21apt-get20:35:111
4181967994336,5cyclictest60637-21kworker/u8:1+events_unbound23:05:140
4181967994334,6cyclictest510-21rs:main0
4181967994332,9cyclictest7860-21diskstats20:10:150
4181975994139,1cyclictest0-21swapper/319:59:563
418197599410,40cyclictest53996-21turbostat22:35:003
4181969994138,2cyclictest50848-21kworker/u8:0+events_unbound22:25:171
4181969994035,4cyclictest25631-21kworker/u8:3+flush-179:021:05:221
4181969994035,4cyclictest20344-21kworker/u8:1+events_unbound21:10:181
4181969994031,3cyclictest4192485-21kworker/u8:3+events_unbound19:45:231
4181967994037,2cyclictest4192485-21kworker/u8:3+events_unbound19:40:210
4181967994035,4cyclictest4192485-21kworker/u8:3+flush-179:020:01:150
4181967994035,4cyclictest17135-21kworker/u8:0+flush-179:020:40:190
4181967994032,6cyclictest4183693-21kworker/u8:2+flush-179:019:25:010
418196799401,37cyclictest714-21Xorg19:49:590
418196799400,39cyclictest77062-21turbostat23:49:550
418196799400,38cyclictest80224-21munin-run23:55:000
4181973993936,2cyclictest0-21swapper/222:48:002
4181969993934,4cyclictest75509-21kworker/u8:3+events_unbound23:40:241
418196799397,29cyclictest151ktimers/021:50:130
4181975993832,5cyclictest75470-21turbostat23:40:003
418197599380,37cyclictest88238-21turbostat00:20:003
4181973993834,2cyclictest0-21swapper/219:54:552
4181969993833,4cyclictest73838-21kworker/u8:1+flush-179:000:20:151
4181969993832,4cyclictest4181825-21kworker/u8:1+flush-179:019:20:001
4181967993831,5cyclictest23738-21kworker/u8:0+events_unbound21:20:170
418197599370,36cyclictest0-21swapper/320:28:593
4181973993734,2cyclictest0-21swapper/223:03:592
4181973993734,2cyclictest0-21swapper/221:38:582
4181973993734,2cyclictest0-21swapper/221:21:002
418197399370,35cyclictest0-21swapper/221:27:592
4181969993732,4cyclictest55550-21kworker/u8:0+flush-179:022:50:201
4181969993731,5cyclictest4177522-21kworker/u8:0+events_unbound19:10:151
418196799370,1cyclictest0-21swapper/023:16:000
4181975993634,1cyclictest0-21swapper/322:10:593
4181975993634,1cyclictest0-21swapper/322:10:583
4181975993634,1cyclictest0-21swapper/321:31:003
4181975993634,1cyclictest0-21swapper/321:00:593
4181975993634,1cyclictest0-21swapper/320:40:593
4181975993634,1cyclictest0-21swapper/300:31:003
4181975993634,1cyclictest0-21swapper/300:29:583
4181975993631,4cyclictest94625-21turbostat00:40:003
418197599360,35cyclictest0-21swapper/321:29:583
4181973993633,2cyclictest0-21swapper/223:39:002
4181973993633,2cyclictest0-21swapper/222:41:592
4181973993633,2cyclictest0-21swapper/219:18:592
418197399360,1cyclictest0-21swapper/220:47:592
4181969993631,4cyclictest5769-21kworker/u8:2+flush-179:020:55:161
4181969993627,6cyclictest57645-21apt-key22:45:011
4181975993533,1cyclictest0-21swapper/322:00:003
4181975993533,1cyclictest0-21swapper/320:46:593
418197599350,1cyclictest0-21swapper/321:24:593
4181973993533,1cyclictest0-21swapper/220:54:592
4181973993532,2cyclictest0-21swapper/219:11:592
4181973993532,2cyclictest0-21swapper/200:36:002
418197399350,1cyclictest0-21swapper/222:29:552
4181973993432,1cyclictest0-21swapper/221:19:592
418196799340,32cyclictest2426-10pipewire-media-21:10:120
4181975993230,1cyclictest0-21swapper/322:38:583
4181975993230,1cyclictest0-21swapper/320:06:593
4181975993227,4cyclictest72281-21turbostat23:29:593
4181975993226,5cyclictest4185072-21turbostat19:20:003
4181973993229,2cyclictest0-21swapper/223:44:592
4181973993229,2cyclictest0-21swapper/222:55:592
4181973993229,2cyclictest0-21swapper/222:07:582
4181973993229,2cyclictest0-21swapper/220:42:582
4181973993229,2cyclictest0-21swapper/220:04:552
4181969993228,3cyclictest1-21systemd23:35:001
4181975993129,1cyclictest0-21swapper/323:33:593
4181975993129,1cyclictest0-21swapper/322:58:003
4181975993129,1cyclictest0-21swapper/320:15:593
4181975993125,5cyclictest67245-21turbostat23:15:003
4181973993128,2cyclictest0-21swapper/223:57:002
4181973993128,2cyclictest0-21swapper/223:56:592
4181967993125,4cyclictest0-21swapper/022:01:590
4181967993125,4cyclictest0-21swapper/019:10:580
4181975993028,1cyclictest0-21swapper/319:45:593
4181975993028,1cyclictest0-21swapper/319:10:583
4181975993027,2cyclictest0-21swapper/323:17:593
4181973993027,2cyclictest0-21swapper/223:15:032
4181973993027,2cyclictest0-21swapper/221:45:112
4181973993027,2cyclictest0-21swapper/221:31:592
4181973993027,2cyclictest0-21swapper/200:13:592
4181967993027,2cyclictest0-21swapper/019:32:590
4181975992927,1cyclictest0-21swapper/323:01:593
4181975992926,2cyclictest0-21swapper/300:00:013
4181975992926,2cyclictest0-21swapper/300:00:013
4181975992925,2cyclictest0-21swapper/320:10:133
4181975992923,5cyclictest45791-21turbostat22:10:013
4181975992923,5cyclictest4191420-21turbostat19:40:003
418197599290,28cyclictest0-21swapper/323:05:023
418197599290,1cyclictest0-21swapper/321:50:133
4181973992927,1cyclictest0-21swapper/222:50:132
4181973992927,1cyclictest0-21swapper/221:00:012
4181973992926,2cyclictest0-21swapper/223:25:132
4181973992926,2cyclictest0-21swapper/221:00:132
4181973992926,2cyclictest0-21swapper/200:15:122
418197399290,28cyclictest0-21swapper/223:12:592
418197399290,27cyclictest0-21swapper/220:35:122
418197399290,27cyclictest0-21swapper/219:40:122
418197399290,27cyclictest0-21swapper/200:32:592
4577091280,7ptp4l441ktimers/321:14:593
4577091280,6ptp4l441ktimers/321:40:013
4577091280,6ptp4l441ktimers/319:25:013
4181975992826,1cyclictest0-21swapper/323:20:113
4181975992826,1cyclictest0-21swapper/322:53:593
4181975992826,1cyclictest0-21swapper/321:43:593
4181975992825,2cyclictest0-21swapper/300:20:123
4181975992825,2cyclictest0-21swapper/300:00:143
4181975992825,1cyclictest0-21swapper/320:52:593
4181975992822,5cyclictest80227-21turbostat23:55:003
418197599280,27cyclictest0-21swapper/322:20:143
418197599280,26cyclictest0-21swapper/320:30:033
4181973992826,1cyclictest0-21swapper/220:29:592
4181973992825,2cyclictest0-21swapper/223:45:122
418197399280,2cyclictest0-21swapper/220:20:142
418197399280,27cyclictest0-21swapper/219:55:022
418197399280,27cyclictest0-21swapper/200:25:122
418197399280,26cyclictest0-21swapper/221:45:002
418197399280,26cyclictest0-21swapper/221:05:142
4181969992824,3cyclictest4181998-21latency_hist19:10:021
4577091270,7ptp4l61490irq/134-eno1-TxRx-019:30:013
4577091270,7ptp4l61490irq/134-eno1-TxRx-000:15:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-020:40:003
4577091270,6ptp4l441ktimers/322:20:003
4577091270,5ptp4l441ktimers/323:50:003
4181975992725,1cyclictest0-21swapper/319:44:593
4181975992725,1cyclictest0-21swapper/300:09:553
4181975992725,1cyclictest0-21swapper/300:09:553
418197599270,26cyclictest0-21swapper/322:46:593
418197599270,26cyclictest0-21swapper/319:33:593
4181973992724,2cyclictest0-21swapper/221:11:592
418197399270,25cyclictest0-21swapper/200:07:002
418197399270,25cyclictest0-21swapper/200:06:592
418197399270,24cyclictest0-21swapper/222:34:592
418197399270,1cyclictest0-21swapper/221:55:592
4577091260,6ptp4l61490irq/134-eno1-TxRx-021:00:013
4577091260,6ptp4l61490irq/134-eno1-TxRx-020:05:013
4577091260,5ptp4l441ktimers/321:20:013
4577091260,5ptp4l441ktimers/319:54:553
4181975992624,1cyclictest0-21swapper/320:24:563
418197599260,25cyclictest77062-21turbostat23:45:003
4181973992624,1cyclictest0-21swapper/219:29:592
4181973992623,2cyclictest0-21swapper/219:22:592
4181973992623,2cyclictest0-21swapper/200:24:552
418197399260,2cyclictest0-21swapper/223:22:002
418197399260,2cyclictest0-21swapper/222:10:042
418197399260,2cyclictest0-21swapper/222:10:032
418197399260,24cyclictest0-21swapper/219:46:592
418197399260,24cyclictest0-21swapper/219:35:132
4577091250,5ptp4l441ktimers/321:09:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-022:04:543
4181973992522,2cyclictest0-21swapper/223:52:592
4181973992522,2cyclictest0-21swapper/219:32:592
4181973992522,2cyclictest0-21swapper/200:00:582
418197399250,2cyclictest0-21swapper/222:20:582
418197399250,2cyclictest0-21swapper/220:19:552
4577091240,5ptp4l61490irq/134-eno1-TxRx-022:44:563
4577091240,5ptp4l61490irq/134-eno1-TxRx-022:29:553
4181973992320,2cyclictest0-21swapper/222:01:002
4181973992220,1cyclictest0-21swapper/223:31:582
4181973992220,1cyclictest0-21swapper/223:07:592
4181973992219,2cyclictest0-21swapper/222:35:582
4181973992219,2cyclictest0-21swapper/222:17:592
418197399118,2cyclictest0-21swapper/221:52:162
418197399118,2cyclictest0-21swapper/220:08:002
418197399107,2cyclictest0-21swapper/220:10:592
41819739930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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