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2026-03-06 - 23:26
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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 376 highest latencies:
System rackeslot6.osadl.org (updated Fri Mar 06, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8790549910595,7cyclictest945356-21kworker/u8:2+flush-179:010:35:000
879058999992,5cyclictest911749-21kworker/u8:3+events_unbound09:10:001
879058999991,6cyclictest953594-21latency_hist11:00:021
879058999588,5cyclictest911749-21kworker/u8:3+flush-179:009:20:001
879054999486,5cyclictest978072-21kworker/u8:2+flush-179:012:20:000
879058999285,5cyclictest892609-21kworker/u8:0+flush-179:008:20:001
879058999181,7cyclictest914887-21latency_hist09:00:011
879058999181,7cyclictest914887-21latency_hist09:00:011
879058999085,4cyclictest947204-21kworker/u8:0+events_unbound10:40:011
879054999080,7cyclictest985994-21latency_hist12:40:010
879054999080,7cyclictest985994-21latency_hist12:40:010
879058998879,7cyclictest940653-21kworker/u8:1+events_unbound10:30:001
879054998881,5cyclictest961882-21kworker/u8:0+flush-179:011:25:010
879054998877,9cyclictest895545-21apt-get08:00:030
879058998780,5cyclictest919687-21kworker/u8:2+events_unbound09:35:241
879058998678,6cyclictest883836-21kworker/u8:2+events_unbound07:50:011
879054998676,7cyclictest957087-21latency_hist11:10:000
879058998579,4cyclictest862742-21kworker/u8:1+flush-179:007:40:211
879054998478,4cyclictest900596-21kworker/u8:2+flush-179:008:30:010
879054998475,7cyclictest961904-21kworker/u8:1+events_unbound11:30:000
879058998379,2cyclictest883836-21kworker/u8:2+events_unbound07:35:231
879054998374,7cyclictest895545-21apt-get08:00:010
879058998263,5cyclictest955440-21kworker/u8:0+events_unbound11:15:001
879058998169,10cyclictest885457-21apt-get07:29:591
879058998073,5cyclictest970082-21kworker/u8:3+flush-179:012:15:201
879058998071,7cyclictest862742-21kworker/u8:1+flush-179:007:15:191
879054997972,5cyclictest919687-21kworker/u8:2+flush-179:009:40:000
879054997969,5cyclictest881329-21kworker/u8:0+events_unbound07:20:280
879058997770,5cyclictest927924-21kworker/u8:3+events_unbound10:10:191
879058997770,4cyclictest892609-21kworker/u8:0+events_unbound07:50:241
879058997767,7cyclictest898977-21latency_hist08:10:021
879058997766,8cyclictest965042-21latency_hist11:35:011
879054997764,10cyclictest885447-21latency_hist07:30:000
879058997671,4cyclictest947241-21kworker/u8:3+flush-179:010:45:221
879058997669,5cyclictest900596-21kworker/u8:2+events_unbound08:25:231
879058997669,5cyclictest890544-21kworker/u8:3+events_unbound07:55:231
879054997464,8cyclictest953590-21apt-get11:00:010
879054997462,9cyclictest266-21systemd-journal09:30:000
879058997366,5cyclictest934915-21kworker/u8:0+flush-179:010:05:211
879058997267,4cyclictest922316-21kworker/u8:0+flush-179:009:50:231
879058997265,5cyclictest945356-21kworker/u8:2+events_unbound11:00:181
879058997166,4cyclictest911749-21kworker/u8:3+flush-179:009:00:151
879058997165,5cyclictest900596-21kworker/u8:2+flush-179:008:30:211
879058997163,5cyclictest970082-21kworker/u8:3+flush-179:012:10:171
879058997063,6cyclictest908496-21kworker/u8:0+flush-179:008:45:011
879058997063,5cyclictest968482-21kworker/u8:1+events_unbound11:45:191
879058997063,5cyclictest862742-21kworker/u8:1+events_unbound07:10:041
879058997059,8cyclictest266-21systemd-journal11:55:011
879058996962,5cyclictest965020-21kworker/u8:0+flush-179:011:35:001
879058996863,4cyclictest892609-21kworker/u8:0+events_unbound08:10:241
879058996859,6cyclictest906909-21kworker/u8:1+events_unbound08:50:191
879058996761,4cyclictest927924-21kworker/u8:3+flush-179:009:55:191
879058996757,7cyclictest940602-21latency_hist10:20:021
879054996759,6cyclictest906928-21latency_hist08:35:020
87905499670,65cyclictest521-21gdbus10:10:010
879058996660,4cyclictest947241-21kworker/u8:3+events_unbound10:50:181
879058996656,7cyclictest878793-21latency_hist07:10:011
879058996559,5cyclictest934915-21kworker/u8:0+events_unbound10:20:201
879058996555,8cyclictest962125-21apt-get11:25:121
879054996556,7cyclictest887294-21latency_hist07:35:000
879058996456,6cyclictest978072-21kworker/u8:2+flush-179:012:20:151
879058996450,13cyclictest945356-21kworker/u8:2+flush-179:011:45:001
879054996457,5cyclictest924410-21kworker/u8:1+flush-179:009:30:220
879058996358,4cyclictest883836-21kworker/u8:2+flush-179:007:30:251
879058996356,6cyclictest947204-21kworker/u8:0+flush-179:010:40:251
879058996354,7cyclictest890544-21kworker/u8:3+flush-179:008:00:201
879058996353,7cyclictest927924-21kworker/u8:3+flush-179:009:40:211
879054996356,5cyclictest906909-21kworker/u8:1+flush-179:009:10:240
879058996255,5cyclictest906909-21kworker/u8:1+flush-179:009:10:251
879058996254,6cyclictest945356-21kworker/u8:2+flush-179:011:25:001
879058996152,6cyclictest881329-21kworker/u8:0+flush-179:007:20:261
879054996155,4cyclictest947241-21kworker/u8:3+flush-179:010:55:000
879058996056,3cyclictest919687-21kworker/u8:2+flush-179:009:25:211
879058995950,7cyclictest900596-21kworker/u8:2+flush-179:008:20:251
879054995953,4cyclictest906909-21kworker/u8:1+flush-179:008:45:180
879061995855,2cyclictest0-21swapper/208:02:002
879058995753,3cyclictest900596-21kworker/u8:2+flush-179:008:45:241
879058995751,4cyclictest973304-21kworker/u8:0+events_unbound12:05:141
879054995750,5cyclictest934915-21kworker/u8:0+events_unbound10:00:240
879058995648,5cyclictest970082-21kworker/u8:3+events_unbound12:35:151
879058995648,5cyclictest970082-21kworker/u8:3+events_unbound12:35:141
879058995646,3cyclictest970082-21kworker/u8:3+flush-179:012:35:001
879054995651,4cyclictest968482-21kworker/u8:1+flush-179:011:45:000
879054995650,4cyclictest945356-21kworker/u8:2+events_unbound11:15:240
879054995549,5cyclictest890544-21kworker/u8:3+flush-179:008:10:000
879054995548,5cyclictest945356-21kworker/u8:2+flush-179:011:35:220
879058995348,4cyclictest945356-21kworker/u8:2+flush-179:012:00:261
879054995245,5cyclictest908496-21kworker/u8:0+flush-179:008:40:140
879054995244,6cyclictest888903-21latency_hist07:40:020
879054995243,7cyclictest948828-21latency_hist10:45:010
879058995144,5cyclictest900596-21kworker/u8:2+flush-179:008:35:151
879058995142,6cyclictest955440-21kworker/u8:0+flush-179:011:05:211
879054995145,4cyclictest968482-21kworker/u8:1+flush-179:011:55:250
879054995144,5cyclictest934915-21kworker/u8:0+flush-179:010:15:210
879061995047,2cyclictest0-21swapper/209:06:592
879054995044,4cyclictest927924-21kworker/u8:3+flush-179:009:40:210
879054995044,4cyclictest922316-21kworker/u8:0+events_unbound09:50:140
879054995042,5cyclictest927924-21kworker/u8:3+events_unbound09:55:230
879058994944,4cyclictest927924-21kworker/u8:3+flush-179:009:49:151
879058994944,4cyclictest924410-21kworker/u8:1+events_unbound09:30:241
879058994943,4cyclictest919687-21kworker/u8:2+flush-179:009:20:201
879054994941,6cyclictest931059-21latency_hist09:50:010
879054994842,5cyclictest940653-21kworker/u8:1+events_unbound10:20:240
4577091480,13ptp4l61490irq/134-eno1-TxRx-007:10:003
879054994740,5cyclictest950413-21latency_hist10:50:010
879054994740,5cyclictest906909-21kworker/u8:1+events_unbound08:50:130
879054994642,3cyclictest921300-21systemd-run09:20:010
879061994542,2cyclictest0-21swapper/207:43:002
879058994540,4cyclictest955440-21kworker/u8:0+flush-179:011:15:201
879054994539,5cyclictest919687-21kworker/u8:2+flush-179:009:25:010
879054994537,6cyclictest266-21systemd-journal07:53:530
879054994438,5cyclictest862742-21kworker/u8:1+flush-179:007:15:220
879058994338,4cyclictest934915-21kworker/u8:0+flush-179:010:00:201
879054994338,4cyclictest945356-21kworker/u8:2+flush-179:010:35:230
879054994338,4cyclictest892609-21kworker/u8:0+events_unbound08:15:240
879054994334,6cyclictest968482-21kworker/u8:1+events_unbound11:50:230
87906299420,40cyclictest914906-21turbostat09:00:013
87906299420,40cyclictest914906-21turbostat09:00:013
879054994137,2cyclictest714-21Xorg09:02:000
879054994135,5cyclictest945356-21kworker/u8:2+flush-179:011:30:220
879054994130,9cyclictest975111-21apt-get12:05:110
879061994037,2cyclictest0-21swapper/210:35:582
87905899401,37cyclictest714-21Xorg12:29:001
879054994033,5cyclictest968482-21kworker/u8:1+flush-179:011:45:200
879054994030,8cyclictest892609-21kworker/u8:0+events_unbound08:15:010
879054993934,4cyclictest911749-21kworker/u8:3+flush-179:009:05:240
879054993934,4cyclictest900596-21kworker/u8:2+flush-179:008:20:160
879054993932,5cyclictest883836-21kworker/u8:2+events_unbound07:45:200
87906299380,37cyclictest0-21swapper/308:29:553
87906199380,35cyclictest0-21swapper/207:34:542
879054993833,4cyclictest945356-21kworker/u8:2+flush-179:011:10:210
879054993831,5cyclictest970082-21kworker/u8:3+flush-179:012:10:200
879062993735,1cyclictest0-21swapper/309:54:593
879062993734,2cyclictest0-21swapper/310:10:593
879062993734,2cyclictest0-21swapper/310:08:593
879062993730,5cyclictest893946-21turbostat07:55:003
87906299370,36cyclictest0-21swapper/308:00:593
879061993733,2cyclictest0-21swapper/211:40:002
87906199370,35cyclictest0-21swapper/207:59:552
87906199370,35cyclictest0-21swapper/207:38:582
87906199370,1cyclictest0-21swapper/208:20:592
879058993732,4cyclictest970082-21kworker/u8:3+flush-179:011:55:161
879054993732,4cyclictest900596-21kworker/u8:2+flush-179:008:35:200
87905499371,35cyclictest953590-21apt-get11:00:030
879062993634,1cyclictest0-21swapper/311:09:553
879062993634,1cyclictest0-21swapper/311:03:593
879062993634,1cyclictest0-21swapper/308:14:553
879062993634,1cyclictest0-21swapper/307:31:593
879062993633,2cyclictest0-21swapper/310:24:593
879062993633,2cyclictest0-21swapper/309:14:553
87906299360,35cyclictest0-21swapper/311:28:593
879061993634,1cyclictest0-21swapper/211:14:592
879061993633,2cyclictest0-21swapper/209:35:592
87906199360,1cyclictest0-21swapper/210:49:552
87906199360,1cyclictest0-21swapper/210:44:002
879058993632,3cyclictest940653-21kworker/u8:1+flush-179:010:30:201
879054993630,5cyclictest970082-21kworker/u8:3+flush-179:012:00:140
879061993532,2cyclictest0-21swapper/210:34:552
879061993532,2cyclictest0-21swapper/210:13:592
87906199350,1cyclictest0-21swapper/211:50:582
879054993530,4cyclictest970082-21kworker/u8:3+flush-179:012:25:230
879054993530,4cyclictest934915-21kworker/u8:0+events_unbound10:25:240
879054993524,9cyclictest979891-21apt-get12:20:120
879062993432,1cyclictest0-21swapper/312:20:583
879062993432,1cyclictest0-21swapper/310:52:583
879062993432,1cyclictest0-21swapper/309:16:593
879062993431,2cyclictest0-21swapper/312:15:583
87906299340,4cyclictest892106-21turbostat07:49:593
879061993432,1cyclictest0-21swapper/209:44:592
879061993431,2cyclictest0-21swapper/212:22:592
879054993431,2cyclictest714-21Xorg08:59:590
879054993431,2cyclictest714-21Xorg08:59:590
879054993430,2cyclictest714-21Xorg10:11:590
879054993428,4cyclictest880667-21munin-run07:15:000
879054993424,8cyclictest978001-21kworker/u8:1+events_unbound12:30:220
879062993331,1cyclictest0-21swapper/310:56:593
879062993330,2cyclictest0-21swapper/307:10:583
879062993230,1cyclictest0-21swapper/312:04:543
879062993230,1cyclictest0-21swapper/311:24:593
879062993129,1cyclictest0-21swapper/307:41:583
879061993127,2cyclictest0-21swapper/208:31:592
879062993028,1cyclictest0-21swapper/311:40:593
879062993028,1cyclictest0-21swapper/311:33:593
879062993028,1cyclictest0-21swapper/310:41:593
879062993028,1cyclictest0-21swapper/308:34:003
879061993027,2cyclictest0-21swapper/212:02:592
879061993027,2cyclictest0-21swapper/210:57:592
87906199300,28cyclictest0-21swapper/210:00:122
87906199300,28cyclictest0-21swapper/207:10:132
879054993024,5cyclictest862742-21kworker/u8:1+events_unbound07:40:170
4577091300,7ptp4l441ktimers/309:30:003
4577091300,7ptp4l441ktimers/308:25:003
879062992927,1cyclictest0-21swapper/311:59:003
879062992927,1cyclictest0-21swapper/311:45:133
879062992927,1cyclictest0-21swapper/309:00:143
879062992927,1cyclictest0-21swapper/307:19:563
879062992926,2cyclictest0-21swapper/312:30:143
879062992926,2cyclictest0-21swapper/310:35:023
879062992926,2cyclictest0-21swapper/310:15:113
879062992926,2cyclictest0-21swapper/307:35:143
87906299290,27cyclictest0-21swapper/311:35:123
87906299290,27cyclictest0-21swapper/310:30:133
879061992927,1cyclictest0-21swapper/210:30:002
879061992926,2cyclictest0-21swapper/209:10:132
879061992926,2cyclictest0-21swapper/208:45:592
879061992926,2cyclictest0-21swapper/208:40:112
879061992926,2cyclictest0-21swapper/208:13:592
879061992926,2cyclictest0-21swapper/207:17:592
879061992926,1cyclictest0-21swapper/212:40:012
879061992926,1cyclictest0-21swapper/212:40:002
879061992925,3cyclictest351rcuc/211:05:012
87906199290,27cyclictest0-21swapper/212:15:132
87906199290,27cyclictest0-21swapper/212:10:112
87906199290,27cyclictest0-21swapper/211:15:132
87906199290,27cyclictest0-21swapper/210:50:162
87906199290,27cyclictest0-21swapper/210:20:122
87906199290,27cyclictest0-21swapper/209:30:142
87906199290,27cyclictest0-21swapper/208:28:592
4577091290,7ptp4l61490irq/134-eno1-TxRx-008:55:013
4577091290,7ptp4l441ktimers/312:10:003
4577091290,6ptp4l441ktimers/308:50:013
879062992826,1cyclictest0-21swapper/310:29:553
879062992826,1cyclictest0-21swapper/310:04:593
879062992826,1cyclictest0-21swapper/309:45:123
879062992826,1cyclictest0-21swapper/309:35:003
879062992826,1cyclictest0-21swapper/308:40:113
879062992826,1cyclictest0-21swapper/307:22:003
87906299280,27cyclictest0-21swapper/312:25:143
87906299280,27cyclictest0-21swapper/309:35:013
87906299280,27cyclictest0-21swapper/309:20:133
87906299280,26cyclictest0-21swapper/308:15:123
879061992826,1cyclictest0-21swapper/207:45:132
879061992825,2cyclictest0-21swapper/211:58:002
879061992825,2cyclictest0-21swapper/211:30:122
879061992825,2cyclictest0-21swapper/209:02:592
879061992824,2cyclictest0-21swapper/210:17:002
87906199280,2cyclictest0-21swapper/209:55:122
87906199280,2cyclictest0-21swapper/209:23:592
87906199280,27cyclictest0-21swapper/207:50:012
87906199280,1cyclictest0-21swapper/208:55:592
87906199280,1cyclictest0-21swapper/208:55:592
4577091280,7ptp4l441ktimers/309:10:013
879062992725,1cyclictest0-21swapper/312:14:003
879062992725,1cyclictest0-21swapper/311:17:003
87906299270,26cyclictest0-21swapper/309:58:583
87906299270,26cyclictest0-21swapper/309:40:593
879061992725,1cyclictest0-21swapper/207:24:592
879061992724,2cyclictest0-21swapper/207:30:002
879061992723,2cyclictest0-21swapper/209:17:592
87906199270,2cyclictest0-21swapper/211:41:002
87906199270,24cyclictest0-21swapper/208:20:002
4577091270,5ptp4l441ktimers/308:00:013
87906299260,25cyclictest0-21swapper/312:36:593
87906299260,25cyclictest0-21swapper/312:36:593
879061992624,1cyclictest0-21swapper/209:29:592
879061992624,1cyclictest0-21swapper/208:54:592
879061992623,2cyclictest0-21swapper/211:21:592
879061992623,2cyclictest0-21swapper/210:05:132
879061992623,2cyclictest0-21swapper/208:07:592
879061992623,1cyclictest0-21swapper/211:06:592
87906199260,24cyclictest0-21swapper/211:46:002
87906199260,24cyclictest0-21swapper/208:40:002
4577091260,6ptp4l441ktimers/308:39:553
4577091260,5ptp4l441ktimers/308:09:553
879062992523,1cyclictest0-21swapper/311:55:003
4577091250,4ptp4l61490irq/134-eno1-TxRx-011:15:003
4577091250,4ptp4l441ktimers/310:49:553
4577091250,4ptp4l441ktimers/307:29:563
879061992421,2cyclictest0-21swapper/212:08:592
879061992018,1cyclictest0-21swapper/209:45:592
879061992016,2cyclictest0-21swapper/212:33:592
879061991815,2cyclictest0-21swapper/212:28:592
879054991815,2cyclictest879275-21cat07:10:020
879061991412,1cyclictest0-21swapper/211:29:002
879061991210,1cyclictest0-21swapper/209:54:592
8790619930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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