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2026-08-29 - 22:43
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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 792 highest latencies:
System rackeslot6.osadl.org (updated Sat Aug 29, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
49108099162130,21cyclictest536627-21kworker/u8:1+events_unbound10:15:001
49108099145138,5cyclictest504227-21kworker/u8:1+events_unbound08:00:001
49107799139127,9cyclictest595187-21latency_hist12:30:000
49107799136126,7cyclictest566066-21kworker/u8:3+events_unbound11:10:010
49108099134119,6cyclictest577409-21kworker/u8:1+events_unbound12:10:241
49108099132117,14cyclictest490989-21kworker/u8:1+events_unbound07:15:001
49108099130116,11cyclictest1213033-21systemd-journal07:30:011
49108099127111,13cyclictest533843-21kworker/u8:3+flush-179:009:30:191
49107799125115,7cyclictest554366-21latency_hist10:25:010
49107799123111,9cyclictest555970-21apt-get10:30:010
49107799122113,6cyclictest487988-21kworker/u8:3+flush-179:007:35:240
49107799121109,9cyclictest534752-21apt-get09:25:000
49107799120112,5cyclictest557797-21latency_hist10:35:000
49108099119114,4cyclictest590439-21kworker/u8:0+events_unbound12:20:241
49108099118105,10cyclictest531293-21latency_hist09:15:011
49107799118108,6cyclictest509632-21kworker/u8:0+events_unbound08:20:000
49108099117111,4cyclictest574907-21kworker/u8:2+events_unbound11:25:241
49107799115107,6cyclictest570195-21kworker/u8:0+events_unbound11:15:010
49107799115104,7cyclictest496011-21latency_hist07:25:010
49107799114102,9cyclictest574907-21kworker/u8:2+events_unbound11:40:260
49108099113105,5cyclictest554602-21kworker/u8:0+flush-179:010:25:201
49108099112100,8cyclictest542935-21kworker/u8:0+flush-179:009:55:211
49108099111105,4cyclictest552733-21kworker/u8:2+events_unbound10:55:231
49107799111106,4cyclictest521736-21kworker/u8:0+flush-179:008:50:000
49108099110100,7cyclictest542935-21kworker/u8:0+events_unbound09:50:211
4910779911087,8cyclictest583779-21latency_hist11:55:000
49107799110100,8cyclictest538178-21latency_hist09:35:010
4910809910699,5cyclictest577409-21kworker/u8:1+events_unbound11:35:151
4910809910698,5cyclictest577409-21kworker/u8:1+flush-179:012:25:271
49108099106101,4cyclictest552733-21kworker/u8:2+events_unbound10:40:251
49108099106100,5cyclictest561236-21kworker/u8:0+events_unbound10:50:011
4910809910596,6cyclictest487988-21kworker/u8:3+events_unbound07:35:211
4910779910496,6cyclictest504227-21kworker/u8:1+flush-179:008:10:000
4910779910495,6cyclictest536627-21kworker/u8:1+flush-179:010:15:010
4910809910396,5cyclictest512180-21kworker/u8:2+events_unbound08:30:251
4910809910396,5cyclictest512180-21kworker/u8:2+events_unbound08:30:251
4910779910394,6cyclictest584771-21kworker/u8:2+flush-179:012:20:010
4910779910295,5cyclictest517448-21kworker/u8:1+events_unbound08:40:250
4910809910195,5cyclictest577409-21kworker/u8:1+flush-179:012:30:161
4910809910190,5cyclictest536627-21kworker/u8:1+events_unbound09:45:251
4910809910185,6cyclictest509632-21kworker/u8:0+events_unbound08:15:231
4910779910193,6cyclictest536627-21kworker/u8:1+events_unbound09:35:200
4910809910092,6cyclictest552733-21kworker/u8:2+flush-179:010:35:021
4910779910089,8cyclictest561236-21kworker/u8:0+flush-179:010:50:250
4910779910089,8cyclictest561236-21kworker/u8:0+flush-179:010:50:240
4910779910087,7cyclictest577409-21kworker/u8:1+events_unbound12:30:260
491080999993,4cyclictest504227-21kworker/u8:1+events_unbound07:50:231
491080999993,4cyclictest504227-21kworker/u8:1+events_unbound07:50:231
491077999994,4cyclictest487988-21kworker/u8:3+flush-179:007:25:240
491077999992,5cyclictest524958-21kworker/u8:3+flush-179:009:05:170
491077999990,7cyclictest557785-21kworker/u8:1+events_unbound10:40:010
491080999791,4cyclictest595178-21kworker/u8:2+flush-179:012:35:251
491080999790,5cyclictest517448-21kworker/u8:1+flush-179:008:40:011
491077999788,6cyclictest533843-21kworker/u8:3+events_unbound09:25:250
491080999690,5cyclictest509632-21kworker/u8:0+events_unbound08:05:261
491080999689,5cyclictest533843-21kworker/u8:3+flush-179:009:25:261
491080999591,3cyclictest584771-21kworker/u8:2+events_unbound12:00:221
491080999488,4cyclictest531328-21kworker/u8:2+flush-179:009:20:241
491077999487,5cyclictest549360-21kworker/u8:3+flush-179:010:10:010
491077999484,7cyclictest598638-21apt-get12:40:000
491080999387,4cyclictest584771-21kworker/u8:2+flush-179:012:15:151
491080999385,6cyclictest536627-21kworker/u8:1+events_unbound10:05:221
491080999383,8cyclictest588805-21kworker/u8:3+flush-179:012:09:591
491080999383,8cyclictest524958-21kworker/u8:3+flush-179:009:00:001
491080999383,8cyclictest524958-21kworker/u8:3+flush-179:009:00:001
491077999387,4cyclictest533843-21kworker/u8:3+flush-179:009:40:230
491077999383,7cyclictest584771-21kworker/u8:2+events_unbound12:05:010
491077999382,8cyclictest526774-21/usr/sbin/munin09:00:240
491077999379,11cyclictest532891-21latency_hist09:20:010
491080999282,8cyclictest492575-21apt-get07:15:031
491080999184,5cyclictest521736-21kworker/u8:0+flush-179:008:45:151
491080999084,4cyclictest552733-21kworker/u8:2+flush-179:011:05:151
491080999079,8cyclictest1213033-21systemd-journal10:20:001
491080998984,4cyclictest574907-21kworker/u8:2+events_unbound11:30:241
491080998983,4cyclictest574907-21kworker/u8:2+flush-179:011:40:161
491080998983,4cyclictest496059-21kworker/u8:2+events_unbound07:40:171
491077998984,3cyclictest495751-21kworker/u8:1+flush-179:007:30:210
491077998982,5cyclictest487988-21kworker/u8:3+flush-179:007:15:010
491077998976,5cyclictest577409-21kworker/u8:1+events_unbound11:35:010
491077998884,3cyclictest524958-21kworker/u8:3+events_unbound08:55:250
491077998884,3cyclictest524958-21kworker/u8:3+events_unbound08:55:250
491077998882,4cyclictest563891-21kworker/u8:1+flush-179:011:00:160
491077998881,5cyclictest536627-21kworker/u8:1+events_unbound10:00:260
491080998781,4cyclictest524958-21kworker/u8:3+events_unbound09:00:171
491080998681,3cyclictest524958-21kworker/u8:3+flush-179:009:05:221
491077998676,7cyclictest552733-21kworker/u8:2+flush-179:010:55:160
491080998580,4cyclictest533843-21kworker/u8:3+flush-179:009:44:561
491080998578,5cyclictest521756-21latency_hist08:45:011
491080998577,6cyclictest577409-21kworker/u8:1+events_unbound11:50:141
491077998576,6cyclictest574907-21kworker/u8:2+events_unbound11:45:240
491080998479,3cyclictest552733-21kworker/u8:2+events_unbound10:30:141
491080998478,4cyclictest504227-21kworker/u8:1+flush-179:008:10:241
491080998477,6cyclictest487988-21kworker/u8:3+events_unbound07:30:141
491080998474,5cyclictest552733-21kworker/u8:2+events_unbound10:50:161
491080998474,5cyclictest552733-21kworker/u8:2+events_unbound10:50:161
491077998377,4cyclictest574907-21kworker/u8:2+events_unbound11:40:000
491077998377,4cyclictest517448-21kworker/u8:1+events_unbound08:35:250
491077998377,4cyclictest504279-21kworker/u8:2+flush-179:008:00:140
491077998373,7cyclictest577409-21kworker/u8:1+events_unbound12:10:130
491077998275,5cyclictest536627-21kworker/u8:1+flush-179:010:00:010
491077998075,4cyclictest570195-21kworker/u8:0+flush-179:011:15:240
491080997969,8cyclictest571303-21apt-get11:15:131
491080997872,4cyclictest502640-21kworker/u8:0+flush-179:007:45:201
491080997869,4cyclictest509632-21kworker/u8:0+events_unbound08:25:011
491080997772,4cyclictest504279-21kworker/u8:2+events_unbound08:05:001
491077997670,4cyclictest504227-21kworker/u8:1+flush-179:007:55:220
491077997668,6cyclictest487988-21kworker/u8:3+flush-179:007:50:000
491086997364,7cyclictest499447-21turbostat07:35:003
491080997363,4cyclictest574907-21kworker/u8:2+events_unbound11:45:191
491077997365,5cyclictest496059-21kworker/u8:2+flush-179:007:40:220
491077997364,7cyclictest570195-21kworker/u8:0+flush-179:011:20:200
491080997260,10cyclictest1213033-21systemd-journal11:25:001
491077997264,5cyclictest512180-21kworker/u8:2+flush-179:008:20:210
491080997167,3cyclictest563891-21kworker/u8:1+flush-179:011:00:151
491077997165,3cyclictest577409-21kworker/u8:1+flush-179:012:05:040
491080996964,3cyclictest584771-21kworker/u8:2+flush-179:011:55:221
491080996964,3cyclictest549360-21kworker/u8:3+flush-179:010:20:151
491077996964,4cyclictest584771-21kworker/u8:2+flush-179:011:55:260
491077996961,6cyclictest510866-21apt-get08:10:130
491077996960,6cyclictest510-21rs:main0
491077996960,6cyclictest510-21rs:main0
491077996658,6cyclictest523599-21apt-get08:50:130
491077996560,4cyclictest570195-21kworker/u8:0+events_unbound11:30:010
491077996460,3cyclictest531280-21kworker/u8:1+flush-179:009:14:550
491077996455,6cyclictest504227-21kworker/u8:1+flush-179:007:50:160
491077996455,6cyclictest504227-21kworker/u8:1+flush-179:007:50:160
491080996354,6cyclictest532890-21apt-get09:20:011
491077996354,6cyclictest559920-21apt-get10:40:120
491080996255,5cyclictest570195-21kworker/u8:0+flush-179:011:10:251
491077996256,4cyclictest549360-21kworker/u8:3+flush-179:010:10:230
491077996148,10cyclictest1213033-21systemd-journal09:50:000
491080996054,5cyclictest521736-21kworker/u8:0+events_unbound08:50:171
491080995853,4cyclictest546108-21kworker/u8:2+events_unbound10:04:081
491082995754,2cyclictest0-21swapper/207:31:592
491077995748,7cyclictest487988-21kworker/u8:3+events_unbound07:15:150
491080995448,4cyclictest495751-21kworker/u8:1+flush-179:007:20:271
491077995447,5cyclictest509632-21kworker/u8:0+flush-179:008:25:220
491077995341,4cyclictest561236-21kworker/u8:0+flush-179:010:45:210
491077995146,4cyclictest584771-21kworker/u8:2+events_unbound12:20:160
491086995048,1cyclictest0-21swapper/311:51:593
491080995046,3cyclictest509632-21kworker/u8:0+events_unbound08:25:221
491077995040,7cyclictest1213033-21systemd-journal09:55:000
4577091490,13ptp4l441ktimers/307:10:023
491086994745,1cyclictest0-21swapper/310:57:593
49108699460,38cyclictest544553-21turbostat09:55:003
49108699410,39cyclictest494427-21turbostat07:20:003
49108699400,1cyclictest0-21swapper/308:30:593
49108699400,1cyclictest0-21swapper/308:30:593
49108699390,4cyclictest554382-21turbostat10:25:013
49108699390,38cyclictest550915-21turbostat10:15:003
491086993832,5cyclictest0-21swapper/312:01:003
49108699380,3cyclictest542967-21turbostat09:50:003
49108699380,37cyclictest564431-21turbostat10:55:003
49108699380,37cyclictest564431-21turbostat10:54:593
491082993835,2cyclictest0-21swapper/207:50:592
491082993835,2cyclictest0-21swapper/207:50:592
491080993833,4cyclictest536627-21kworker/u8:1+events_unbound09:35:181
491086993729,7cyclictest572663-21turbostat11:20:003
49108699370,3cyclictest513807-21turbostat08:20:003
491082993734,2cyclictest0-21swapper/211:15:012
491082993734,2cyclictest0-21swapper/211:03:002
491082993734,2cyclictest0-21swapper/210:34:002
49108299370,2cyclictest0-21swapper/211:19:002
491086993634,1cyclictest0-21swapper/311:48:003
491086993634,1cyclictest0-21swapper/308:45:593
491086993634,1cyclictest0-21swapper/307:38:593
49108699360,35cyclictest0-21swapper/311:39:553
49108699360,35cyclictest0-21swapper/310:50:003
49108699360,35cyclictest0-21swapper/310:39:593
49108699360,35cyclictest0-21swapper/307:52:593
49108699360,35cyclictest0-21swapper/307:52:593
49108699360,35cyclictest0-21swapper/307:42:003
49108699360,27cyclictest0-21swapper/312:40:023
49108699360,1cyclictest0-21swapper/310:40:593
491082993634,1cyclictest0-21swapper/208:15:002
491082993633,2cyclictest0-21swapper/212:20:002
491082993633,2cyclictest0-21swapper/208:07:592
491082993633,2cyclictest0-21swapper/207:49:002
491086993530,4cyclictest497614-21turbostat07:30:013
49108699350,1cyclictest0-21swapper/311:34:003
49108699350,1cyclictest0-21swapper/311:09:553
49108299350,1cyclictest0-21swapper/211:46:002
491086993432,1cyclictest0-21swapper/307:13:593
491086993431,2cyclictest0-21swapper/311:22:583
491082993431,2cyclictest0-21swapper/212:25:582
491082993431,2cyclictest0-21swapper/211:52:002
491086993328,4cyclictest592015-21turbostat12:24:553
491082993331,1cyclictest0-21swapper/207:59:592
491082993330,2cyclictest0-21swapper/212:35:592
491082993330,2cyclictest0-21swapper/210:57:592
491082993330,2cyclictest0-21swapper/208:19:002
491086993230,1cyclictest0-21swapper/309:10:593
491086993228,3cyclictest593611-21turbostat12:29:553
491082993229,2cyclictest0-21swapper/211:56:582
491082993229,2cyclictest0-21swapper/209:41:592
491082993229,2cyclictest0-21swapper/209:12:592
491082993229,2cyclictest0-21swapper/208:20:592
491086993129,1cyclictest0-21swapper/312:20:003
491086993125,5cyclictest0-21swapper/307:55:133
491082993128,2cyclictest0-21swapper/211:36:002
49108299310,29cyclictest0-21swapper/209:40:012
4577091310,7ptp4l441ktimers/312:10:003
4577091310,6ptp4l61490irq/134-eno1-TxRx-012:00:003
491086993028,1cyclictest0-21swapper/308:39:593
491086993028,1cyclictest0-21swapper/308:15:003
491086993027,2cyclictest0-21swapper/312:30:023
491086993024,5cyclictest0-21swapper/311:44:563
491082993027,2cyclictest0-21swapper/211:33:002
491082993027,2cyclictest0-21swapper/210:04:002
491082993027,2cyclictest0-21swapper/209:20:022
491082993026,2cyclictest0-21swapper/212:05:042
49108299300,28cyclictest0-21swapper/207:36:592
491086992927,1cyclictest0-21swapper/310:32:003
491086992927,1cyclictest0-21swapper/308:20:133
491086992927,1cyclictest0-21swapper/308:09:593
491086992922,6cyclictest0-21swapper/308:43:593
49108699290,2cyclictest0-21swapper/308:55:133
49108699290,2cyclictest0-21swapper/308:55:133
49108699290,28cyclictest0-21swapper/310:15:023
49108699290,1cyclictest0-21swapper/309:25:013
491082992927,1cyclictest0-21swapper/211:24:592
491082992926,2cyclictest0-21swapper/210:35:032
491082992926,2cyclictest0-21swapper/209:51:592
491082992926,2cyclictest0-21swapper/208:30:592
491082992926,2cyclictest0-21swapper/208:30:592
491082992925,2cyclictest0-21swapper/211:42:582
491082992925,2cyclictest0-21swapper/210:51:592
491082992925,2cyclictest0-21swapper/210:51:582
49108299290,2cyclictest0-21swapper/210:10:122
49108299290,28cyclictest0-21swapper/210:45:152
49108299290,28cyclictest0-21swapper/210:05:142
49108299290,28cyclictest0-21swapper/208:25:152
49108299290,27cyclictest0-21swapper/212:30:022
49108299290,27cyclictest0-21swapper/212:24:002
49108299290,27cyclictest0-21swapper/211:05:122
49108299290,27cyclictest0-21swapper/210:30:022
49108299290,27cyclictest0-21swapper/209:30:112
49108299290,27cyclictest0-21swapper/209:20:022
49108299290,27cyclictest0-21swapper/208:40:142
49108299290,27cyclictest0-21swapper/207:15:032
4577091290,8ptp4l61490irq/134-eno1-TxRx-008:29:553
4577091290,6ptp4l441ktimers/311:29:563
491086992826,1cyclictest0-21swapper/309:20:133
491086992822,5cyclictest0-21swapper/309:34:593
49108699280,27cyclictest0-21swapper/309:44:593
49108699280,26cyclictest0-21swapper/307:45:123
491082992826,1cyclictest0-21swapper/209:30:002
49108299280,2cyclictest0-21swapper/209:49:592
49108299280,27cyclictest0-21swapper/209:55:142
49108299280,27cyclictest0-21swapper/208:57:592
49108299280,27cyclictest0-21swapper/208:57:592
4577091280,6ptp4l441ktimers/309:10:003
4577091280,6ptp4l441ktimers/309:04:563
4577091280,6ptp4l441ktimers/307:24:553
4577091280,5ptp4l441ktimers/311:04:543
4577091280,5ptp4l441ktimers/310:10:013
231999280,16rtkit-daemon490171-21if_err_enp2s007:05:220
491082992723,2cyclictest0-21swapper/209:06:592
49108299270,26cyclictest0-21swapper/207:44:582
49108299270,25cyclictest0-21swapper/207:13:592
4577091270,6ptp4l61490irq/134-eno1-TxRx-011:14:563
4577091270,6ptp4l61490irq/134-eno1-TxRx-010:00:013
4577091270,6ptp4l441ktimers/309:39:553
4577091270,5ptp4l441ktimers/309:19:563
491082992624,1cyclictest0-21swapper/208:54:592
491082992622,2cyclictest0-21swapper/207:26:592
49108299260,2cyclictest0-21swapper/210:43:582
49108299260,1cyclictest0-21swapper/212:14:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-012:15:003
4577091260,5ptp4l61490irq/134-eno1-TxRx-010:30:013
4577091260,3ptp4l431rcuc/310:04:543
49108699250,24cyclictest0-21swapper/308:50:593
49108699250,24cyclictest0-21swapper/308:01:583
491082992522,2cyclictest0-21swapper/209:02:002
491082992521,2cyclictest0-21swapper/208:39:552
49108299250,1cyclictest0-21swapper/208:45:152
491082992421,2cyclictest0-21swapper/211:26:582
491082992421,2cyclictest0-21swapper/207:21:592
491080992419,3cyclictest0-21swapper/107:10:021
491082992118,2cyclictest0-21swapper/212:02:592
491082992118,2cyclictest0-21swapper/210:20:582
491082992018,1cyclictest0-21swapper/210:20:002
491082991915,2cyclictest0-21swapper/208:03:002
4910829930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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