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2026-04-03 - 17:16
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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 03, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2921710999990,6cyclictest2915553-21kworker/u8:2+flush-179:007:15:010
2921714999889,7cyclictest2959064-21latency_hist09:05:011
2921714999889,7cyclictest2924770-21latency_hist07:20:011
2921710999382,9cyclictest2942560-21apt-get08:11:000
2921710999080,7cyclictest2944232-21latency_hist08:20:010
2921710998879,7cyclictest2951098-21latency_hist08:40:020
2921714998778,6cyclictest3012109-21latency_hist11:50:011
2921710998475,7cyclictest3007309-21kworker/u8:2+flush-179:011:40:010
2921714998375,6cyclictest2929541-21latency_hist07:35:021
2921714998369,11cyclictest266-21systemd-journal11:05:001
2921714998174,5cyclictest2936190-21latency_hist07:55:011
2921710998174,5cyclictest2946325-21kworker/u8:2+events_unbound08:30:010
2921714998075,4cyclictest2957519-21kworker/u8:3+events_unbound09:20:251
2921710997971,6cyclictest3010526-21latency_hist11:45:010
2921714997768,6cyclictest2949716-21cp08:35:021
2921714997666,8cyclictest2985060-21apt-get10:25:111
2921710997569,5cyclictest3007368-21kworker/u8:3+flush-179:012:20:010
2921714997470,3cyclictest2957519-21kworker/u8:3+events_unbound09:19:561
2921714997368,4cyclictest3007309-21kworker/u8:2+events_unbound11:59:351
2921714997261,9cyclictest2952951-21apt-get08:45:091
2921710997162,7cyclictest266-21systemd-journal12:00:010
2921710997161,8cyclictest2998048-21apt-get11:05:100
2921714997066,3cyclictest2966503-21kworker/u8:0+events_unbound09:31:441
2921714997061,3cyclictest3023491-21kworker/u8:1+events_unbound12:30:171
2921710997062,6cyclictest2976564-21latency_hist10:00:010
2921710997062,6cyclictest2921555-21latency_hist07:10:010
2921714996965,3cyclictest3007309-21kworker/u8:2+events_unbound12:08:471
2921714996965,3cyclictest3007309-21kworker/u8:2+events_unbound11:33:441
2921714996965,3cyclictest2960685-21kworker/u8:0+events_unbound09:12:431
2921714996964,4cyclictest2986368-21kworker/u8:0+events_unbound10:44:291
2921710996961,6cyclictest2970469-21apt-get09:40:120
2921714996864,3cyclictest2946325-21kworker/u8:2+events_unbound08:33:431
2921714996863,4cyclictest2954308-21kworker/u8:1+events_unbound09:06:451
2921714996863,4cyclictest2954308-21kworker/u8:1+events_unbound09:06:441
2921714996858,4cyclictest2986368-21kworker/u8:0+events_unbound10:45:231
2921710996859,7cyclictest266-21systemd-journal10:23:010
2921710996859,7cyclictest266-21systemd-journal10:23:010
2921714996763,3cyclictest3007309-21kworker/u8:2+events_unbound12:04:341
2921714996763,3cyclictest2970257-21kworker/u8:3+events_unbound09:46:431
2921714996762,4cyclictest3007309-21kworker/u8:2+events_unbound12:10:461
2921714996662,3cyclictest2954308-21kworker/u8:1+events_unbound08:59:571
2921714996661,4cyclictest2972461-21kworker/u8:0+events_unbound10:11:431
2921710996656,8cyclictest2957730-21apt-get09:00:110
2921714996561,3cyclictest2924737-21kworker/u8:0+events_unbound07:28:441
2921714996561,3cyclictest2915553-21kworker/u8:2+events_unbound07:14:571
2921714996460,3cyclictest2973363-21kworker/u8:2+events_unbound09:54:581
2921714996460,3cyclictest2931228-21kworker/u8:3+events_unbound07:57:441
2921714996453,9cyclictest510-21rs:main1
2921714996453,9cyclictest2954537-21apt-get08:50:121
2921714996359,3cyclictest3005720-21kworker/u8:1+events_unbound11:29:321
2921714996359,3cyclictest2993678-21kworker/u8:1+events_unbound10:59:561
2921714996358,4cyclictest3007309-21kworker/u8:2+events_unbound12:15:041
2921714996358,4cyclictest2979991-21kworker/u8:3+events_unbound10:18:421
2921714996358,4cyclictest2931228-21kworker/u8:3+events_unbound08:00:431
2921714996355,6cyclictest2984806-21latency_hist10:25:001
2921714996355,6cyclictest2984806-21latency_hist10:25:001
2921710996352,9cyclictest2972054-21apt-get09:45:100
2921710996342,18cyclictest2963884-21systemd-run09:20:000
2921714996255,5cyclictest3002829-21apt-get11:20:111
2921714996253,3cyclictest2951146-21kworker/u8:3+events_unbound08:40:131
2921714996248,13cyclictest2972461-21kworker/u8:0+flush-179:009:55:261
2921710996254,6cyclictest2915553-21kworker/u8:2+flush-179:007:25:150
2921714996157,3cyclictest2931228-21kworker/u8:3+events_unbound07:49:561
2921714996156,4cyclictest3023491-21kworker/u8:1+events_unbound12:24:471
2921710996155,5cyclictest3007309-21kworker/u8:2+flush-179:012:10:000
2921710996155,4cyclictest3007309-21kworker/u8:2+flush-179:012:00:200
2921710996150,8cyclictest3022183-21apt-get12:20:120
292171099611,42cyclictest2924784-21plymouth07:20:000
2921714996056,3cyclictest2986368-21kworker/u8:0+events_unbound10:35:151
2921714995955,3cyclictest2973363-21kworker/u8:2+events_unbound10:04:561
2921714995955,3cyclictest2931228-21kworker/u8:3+events_unbound07:44:431
2921714995954,4cyclictest2939430-21kworker/u8:1+events_unbound08:26:431
2921714995954,3cyclictest2994643-21kworker/u8:3+events_unbound11:05:031
2921710995952,5cyclictest3013694-21latency_hist11:55:000
2921710995850,5cyclictest2982996-21kworker/u8:2+events_unbound11:15:230
2921710995845,9cyclictest2989583-21latency_hist10:40:010
2921714995753,3cyclictest2915553-21kworker/u8:2+events_unbound07:23:431
2921710995750,5cyclictest3005720-21kworker/u8:1+flush-179:011:35:000
2921710995733,21cyclictest3028591-21systemd-run12:40:010
2921714995652,3cyclictest2999361-21kworker/u8:0+events_unbound11:10:031
2921714995646,8cyclictest2939644-21apt-get08:05:101
2921710995446,6cyclictest266-21systemd-journal10:12:420
2921710995441,9cyclictest3020069-21apt-get12:15:000
2921714995346,5cyclictest2924737-21kworker/u8:0+flush-179:007:40:001
2921710995240,9cyclictest2938055-21apt-get08:00:110
2921710995232,3cyclictest2946325-21kworker/u8:2+flush-179:008:30:120
2921714995146,4cyclictest2982996-21kworker/u8:2+events_unbound11:17:451
2921710995146,3cyclictest2924737-21kworker/u8:0+events_unbound07:35:150
2921710995144,5cyclictest2973642-21apt-get09:50:120
2921714995046,3cyclictest2982996-21kworker/u8:2+events_unbound10:33:431
2921710995041,8cyclictest2931228-21kworker/u8:3+flush-179:008:06:200
2921714994945,3cyclictest3007368-21kworker/u8:3+events_unbound12:29:471
2921710994942,5cyclictest2982996-21kworker/u8:2+flush-179:011:25:210
4577091480,13ptp4l61490irq/134-eno1-TxRx-007:10:003
2921714994844,3cyclictest3007309-21kworker/u8:2+events_unbound11:53:441
2921714994843,4cyclictest2970257-21kworker/u8:3+events_unbound09:44:421
2921710994840,6cyclictest2993678-21kworker/u8:1+flush-179:010:50:200
2921710994840,6cyclictest266-21systemd-journal10:48:430
2921710994833,12cyclictest266-21systemd-journal10:35:000
2921710994827,3cyclictest0-21swapper/007:55:220
2921710994743,3cyclictest2972461-21kworker/u8:0+flush-179:010:05:250
2921710994740,5cyclictest2931228-21kworker/u8:3+flush-179:007:50:240
2921710994740,5cyclictest266-21systemd-journal11:10:440
2921710994738,6cyclictest2931228-21kworker/u8:3+flush-179:007:40:020
2921714994642,3cyclictest281ktimers/109:35:141
2921710994639,5cyclictest2954298-21perf08:49:590
2921710994539,4cyclictest2957519-21kworker/u8:3+events_unbound09:25:010
2921710994534,8cyclictest510-21rs:main0
2921710994528,3cyclictest2990100-21apt-get10:40:120
2921714994437,5cyclictest2994599-21latency_hist10:55:011
2921710994441,2cyclictest0-21swapper/008:50:580
2921710994436,6cyclictest2982996-21kworker/u8:2+flush-179:010:55:210
2921710994332,7cyclictest2924737-21kworker/u8:0+flush-179:007:30:200
292171099432,39cyclictest2984814-21turbostat10:29:550
2921714994234,6cyclictest3007309-21kworker/u8:2+flush-179:011:40:191
2921714994234,6cyclictest266-21systemd-journal09:28:421
2921710994236,4cyclictest2954308-21kworker/u8:1+events_unbound09:05:240
2921710994236,4cyclictest2954308-21kworker/u8:1+events_unbound09:05:230
2921710994235,5cyclictest3023491-21kworker/u8:1+flush-179:012:30:200
2921710994234,5cyclictest2972461-21kworker/u8:0+flush-179:010:20:010
2921719994139,1cyclictest0-21swapper/307:49:553
2921710994133,6cyclictest2960887-21/usr/sbin/munin09:10:240
2921710994128,10cyclictest266-21systemd-journal09:00:010
292171699400,38cyclictest0-21swapper/207:20:592
2921714994036,3cyclictest2944243-21kworker/u8:3+events_unbound08:22:441
2921710994034,4cyclictest2915553-21kworker/u8:2+flush-179:007:20:240
2921716993936,2cyclictest0-21swapper/208:53:592
2921714993936,2cyclictest29-21ksoftirqd/110:07:591
2921710993912,20cyclictest0-21swapper/007:46:000
2921716993835,2cyclictest0-21swapper/210:58:592
2921716993834,2cyclictest0-21swapper/207:39:562
292171699380,36cyclictest0-21swapper/208:13:002
2921714993830,6cyclictest2942631-21perf08:15:001
292171499380,2cyclictest714-21Xorg11:35:591
2921710993835,2cyclictest714-21Xorg11:04:590
2921710993835,2cyclictest0-21swapper/011:49:590
2921710993833,4cyclictest484-21dbus-daemon09:35:000
2921710993833,3cyclictest2970260-21latency_hist09:40:000
2921716993734,2cyclictest0-21swapper/210:31:002
292171699370,35cyclictest0-21swapper/212:23:002
292171699370,35cyclictest0-21swapper/211:38:592
292171699370,1cyclictest0-21swapper/207:56:592
292171099370,1cyclictest0-21swapper/008:43:000
2921719993634,1cyclictest0-21swapper/312:04:563
2921719993634,1cyclictest0-21swapper/310:13:593
2921719993634,1cyclictest0-21swapper/307:59:553
2921719993633,2cyclictest0-21swapper/308:05:593
292171999360,35cyclictest0-21swapper/311:33:593
292171999360,35cyclictest0-21swapper/311:00:593
292171999360,35cyclictest0-21swapper/310:04:593
292171999360,35cyclictest0-21swapper/309:48:593
292171999360,35cyclictest0-21swapper/308:18:583
292171999360,35cyclictest0-21swapper/307:12:593
2921716993633,2cyclictest0-21swapper/212:31:582
2921716993633,2cyclictest0-21swapper/209:53:592
2921716993632,2cyclictest0-21swapper/212:16:592
292171699360,1cyclictest0-21swapper/208:45:002
2921710993632,3cyclictest2945866-21munin-run08:25:010
2921710993627,7cyclictest2966503-21kworker/u8:0+flush-179:009:30:010
2921710993625,7cyclictest0-21swapper/011:20:590
2921719993533,1cyclictest0-21swapper/310:30:593
2921719993533,1cyclictest0-21swapper/309:23:593
2921719993533,1cyclictest0-21swapper/307:16:003
2921719993532,2cyclictest0-21swapper/310:38:593
2921719993532,2cyclictest0-21swapper/308:38:593
2921716993532,2cyclictest0-21swapper/208:46:002
292171699350,1cyclictest0-21swapper/209:35:002
2921719993432,1cyclictest0-21swapper/308:04:583
2921716993431,2cyclictest0-21swapper/211:23:592
2921716993431,2cyclictest0-21swapper/210:04:002
2921710993429,4cyclictest3025187-21latency_hist12:29:590
2921719993331,1cyclictest0-21swapper/309:27:003
2921719993330,1cyclictest0-21swapper/308:46:583
2921716993329,2cyclictest0-21swapper/210:05:592
2921719993230,1cyclictest0-21swapper/309:54:553
2921719993129,1cyclictest0-21swapper/309:44:003
2921719993128,2cyclictest0-21swapper/310:52:593
2921716993128,2cyclictest0-21swapper/212:03:592
2921719993028,1cyclictest0-21swapper/312:23:003
2921719993028,1cyclictest0-21swapper/311:54:593
2921719993028,1cyclictest0-21swapper/309:01:583
2921719993027,2cyclictest3008935-21turbostat11:40:003
2921716993027,2cyclictest0-21swapper/212:35:122
2921716993027,2cyclictest0-21swapper/210:23:122
2921716993027,2cyclictest0-21swapper/210:23:122
2921716993027,2cyclictest0-21swapper/209:10:132
2921716993027,2cyclictest0-21swapper/207:50:122
292171699300,28cyclictest0-21swapper/208:30:132
292171699300,1cyclictest0-21swapper/207:14:582
2921714993026,3cyclictest2939430-21kworker/u8:1+events_unbound08:16:001
4577091290,7ptp4l441ktimers/308:30:013
2921719992927,1cyclictest0-21swapper/312:35:023
2921719992927,1cyclictest0-21swapper/311:05:593
2921719992927,1cyclictest0-21swapper/310:56:593
2921719992926,2cyclictest0-21swapper/310:20:133
2921719992926,2cyclictest0-21swapper/310:20:133
2921719992926,2cyclictest0-21swapper/309:55:143
2921719992926,2cyclictest0-21swapper/309:30:123
2921719992926,2cyclictest0-21swapper/308:50:123
292171999290,27cyclictest0-21swapper/307:35:133
2921716992926,2cyclictest0-21swapper/210:25:122
292171699290,28cyclictest0-21swapper/210:40:022
292171699290,28cyclictest0-21swapper/207:30:102
292171699290,27cyclictest0-21swapper/212:08:002
292171699290,27cyclictest0-21swapper/211:10:132
292171699290,27cyclictest0-21swapper/211:05:122
292171699290,27cyclictest0-21swapper/210:15:122
292171699290,27cyclictest0-21swapper/209:20:112
292171699290,27cyclictest0-21swapper/209:15:132
292171699290,27cyclictest0-21swapper/208:35:022
292171699290,27cyclictest0-21swapper/207:45:592
4577091280,6ptp4l441ktimers/312:35:003
2921719992826,1cyclictest0-21swapper/308:20:133
2921719992825,2cyclictest0-21swapper/311:19:593
292171999280,27cyclictest0-21swapper/309:17:583
292171999280,27cyclictest0-21swapper/309:05:133
292171999280,27cyclictest0-21swapper/309:05:123
292171999280,26cyclictest0-21swapper/310:05:143
292171999280,26cyclictest0-21swapper/308:35:013
292171999280,26cyclictest0-21swapper/307:40:023
292171999280,26cyclictest0-21swapper/307:20:123
2921716992826,1cyclictest0-21swapper/208:19:592
2921716992825,2cyclictest0-21swapper/211:41:592
2921716992825,2cyclictest0-21swapper/210:10:142
2921716992825,2cyclictest0-21swapper/209:40:122
2921716992825,2cyclictest0-21swapper/209:36:592
2921716992825,2cyclictest0-21swapper/208:25:012
2921716992825,2cyclictest0-21swapper/207:44:552
292171699280,26cyclictest0-21swapper/212:12:592
292171699280,26cyclictest0-21swapper/208:25:002
292171699280,26cyclictest0-21swapper/207:25:122
4577091270,7ptp4l441ktimers/312:19:563
4577091270,6ptp4l441ktimers/312:10:003
4577091270,6ptp4l441ktimers/311:15:003
2921719992725,1cyclictest0-21swapper/307:34:593
2921719992725,1cyclictest0-21swapper/307:25:113
292171999270,26cyclictest0-21swapper/311:59:593
292171999270,26cyclictest0-21swapper/309:15:003
292171999270,26cyclictest0-21swapper/308:10:143
4577091260,7ptp4l61490irq/134-eno1-TxRx-011:50:003
4577091260,6ptp4l441ktimers/312:15:013
4577091260,6ptp4l441ktimers/310:49:563
4577091260,5ptp4l441ktimers/310:29:553
2921719992624,1cyclictest0-21swapper/311:24:593
2921719992624,1cyclictest0-21swapper/309:39:543
2921716992623,2cyclictest0-21swapper/209:55:592
2921716992623,2cyclictest0-21swapper/209:49:002
2921716992623,2cyclictest0-21swapper/207:17:002
292171699260,24cyclictest0-21swapper/208:56:592
4577091250,6ptp4l61490irq/134-eno1-TxRx-011:30:003
4577091250,6ptp4l61490irq/134-eno1-TxRx-008:44:563
4577091250,6ptp4l61490irq/134-eno1-TxRx-007:54:563
4577091250,5ptp4l441ktimers/312:29:553
4577091250,5ptp4l441ktimers/308:59:563
4577091250,4ptp4l441ktimers/311:44:553
2921716992522,2cyclictest0-21swapper/211:29:552
2921716992522,2cyclictest0-21swapper/208:01:592
292171699250,2cyclictest0-21swapper/211:46:592
292171699250,2cyclictest0-21swapper/210:36:592
4577091240,5ptp4l61490irq/134-eno1-TxRx-010:44:553
2921719992422,1cyclictest0-21swapper/310:15:123
2921716992422,1cyclictest0-21swapper/211:50:132
2921716992422,1cyclictest0-21swapper/211:30:592
2921716992421,2cyclictest0-21swapper/210:46:592
2921716992421,2cyclictest0-21swapper/209:01:002
2921716992321,1cyclictest0-21swapper/212:29:592
2921716992320,2cyclictest0-21swapper/209:05:582
2921716992320,2cyclictest0-21swapper/209:05:582
2921716992220,1cyclictest0-21swapper/211:20:002
2921716992219,2cyclictest0-21swapper/208:07:582
231999210,11rtkit-daemon688-21lldpd07:05:331
2921716992017,2cyclictest0-21swapper/211:00:592
2921716991411,2cyclictest0-21swapper/209:26:592
292171699129,2cyclictest0-21swapper/211:57:582
292171699118,2cyclictest0-21swapper/210:50:592
29217169930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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