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2026-06-28 - 11:30
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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 Sun Jun 28, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
300478699141135,4cyclictest3098075-21kworker/u8:2+events_unbound00:04:021
300478699121108,10cyclictest510-21rs:main1
300478599121110,8cyclictest1213033-21systemd-journal22:00:010
300478699120105,5cyclictest3012619-21kworker/u8:1+events_unbound20:35:241
30047869911795,12cyclictest3038584-21kworker/u8:3+flush-179:020:55:211
300478599117107,3cyclictest3075730-21kworker/u8:1+events_unbound23:10:230
300478699116103,10cyclictest3060901-21latency_hist22:05:021
300478699115109,4cyclictest3054537-21latency_hist21:45:001
300478599115111,3cyclictest2991607-21kworker/u8:0+events_unbound19:25:240
30047859911499,13cyclictest3098031-40mandb00:00:010
300478699110106,3cyclictest3012619-21kworker/u8:1+flush-179:019:40:251
300478699110105,4cyclictest385883-21cups-browsed00:00:001
300478699110100,7cyclictest3082105-21latency_hist23:10:001
300478599108102,4cyclictest3077358-21kworker/u8:3+events_unbound00:10:190
30047869910499,3cyclictest3012619-21kworker/u8:1+flush-179:020:25:001
30047869910498,4cyclictest3043372-21kworker/u8:2+events_unbound21:25:261
30047869910399,3cyclictest3043372-21kworker/u8:2+events_unbound21:10:241
30047859910398,4cyclictest3085255-21kworker/u8:0+events_unbound23:30:230
30047859910397,4cyclictest2991607-21kworker/u8:0+events_unbound20:00:240
30047869910191,7cyclictest3075740-21latency_hist22:50:011
3004786999996,2cyclictest0-21swapper/122:52:591
3004786999993,4cyclictest3045010-21kworker/u8:1+events_unbound22:10:231
3004786999991,6cyclictest3069336-21kworker/u8:0+events_unbound22:30:231
3004786999981,8cyclictest3077358-21kworker/u8:3+flush-179:000:20:271
3004786999981,8cyclictest3077358-21kworker/u8:3+flush-179:000:20:261
3004785999995,3cyclictest3045010-21kworker/u8:1+events_unbound21:50:260
3004786999890,5cyclictest3069336-21kworker/u8:0+flush-179:022:40:151
3004786999889,6cyclictest3038584-21kworker/u8:3+events_unbound21:00:231
3004786999876,4cyclictest3012619-21kworker/u8:1+flush-179:020:25:151
3004785999888,7cyclictest3048170-21latency_hist21:25:000
3004786999788,6cyclictest3077358-21kworker/u8:3+events_unbound22:55:231
3004786999784,10cyclictest3020862-21apt-get20:00:011
3004786999784,10cyclictest3020862-21apt-get20:00:001
3004786999690,4cyclictest3035472-21kworker/u8:2+events_unbound20:50:131
3004785999691,4cyclictest3077358-21kworker/u8:3+events_unbound23:00:250
3004785999690,4cyclictest3069336-21kworker/u8:0+events_unbound22:40:190
3004786999589,4cyclictest3038584-21kworker/u8:3+flush-179:021:05:261
3004786999588,5cyclictest3035472-21kworker/u8:2+flush-179:020:45:211
3004786999586,6cyclictest3077358-21kworker/u8:3+events_unbound23:45:171
3004786999487,5cyclictest3045010-21kworker/u8:1+flush-179:021:50:211
3004785999488,4cyclictest3012619-21kworker/u8:1+events_unbound20:25:230
3004786999388,4cyclictest2991607-21kworker/u8:0+flush-179:019:45:241
3004786999383,7cyclictest3096422-21latency_hist23:55:011
3004786999377,6cyclictest2991607-21kworker/u8:0+events_unbound20:00:251
3004786999286,4cyclictest3043372-21kworker/u8:2+events_unbound21:15:251
3004786999286,4cyclictest3043372-21kworker/u8:2+events_unbound21:15:251
3004786999281,6cyclictest3038584-21kworker/u8:3+events_unbound22:15:191
3004786999281,5cyclictest3045010-21kworker/u8:1+events_unbound22:05:031
3004785999283,7cyclictest3038584-21kworker/u8:3+flush-179:021:20:000
3004785999283,7cyclictest3038584-21kworker/u8:3+flush-179:021:20:000
3004785999283,3cyclictest3077358-21kworker/u8:3+events_unbound22:55:240
3004785999186,4cyclictest3038584-21kworker/u8:3+events_unbound21:00:160
3004786999084,4cyclictest3077358-21kworker/u8:3+flush-179:000:35:191
3004786999084,4cyclictest3069336-21kworker/u8:0+events_unbound23:00:211
3004786999083,5cyclictest3075730-21kworker/u8:1+events_unbound23:10:201
3004786999076,4cyclictest3077358-21kworker/u8:3+events_unbound00:30:161
3004786998982,5cyclictest3012619-21kworker/u8:1+flush-179:019:50:011
3004785998981,6cyclictest3064368-21kworker/u8:2+flush-179:022:25:250
3004786998879,6cyclictest3069372-21latency_hist22:30:011
3004786998875,5cyclictest3038584-21kworker/u8:3+events_unbound21:45:231
3004785998880,3cyclictest3077358-21kworker/u8:3+events_unbound23:45:270
3004786998783,3cyclictest3021371-21kworker/u8:2+events_unbound20:05:251
3004786998778,7cyclictest2991607-21kworker/u8:0+events_unbound19:30:131
3004786998679,6cyclictest3064368-21kworker/u8:2+events_unbound22:20:201
3004786998576,6cyclictest3045010-21kworker/u8:1+events_unbound21:20:211
3004786998575,4cyclictest3038584-21kworker/u8:3+events_unbound21:35:161
3004785998580,3cyclictest3021371-21kworker/u8:2+events_unbound20:20:140
3004786998477,5cyclictest3077358-21kworker/u8:3+events_unbound23:15:181
3004786998477,5cyclictest3012619-21kworker/u8:1+flush-179:020:10:201
3004785998379,3cyclictest3038584-21kworker/u8:3+events_unbound21:05:250
3004785998373,3cyclictest3012619-21kworker/u8:1+events_unbound19:40:230
3004786998276,4cyclictest3012619-21kworker/u8:1+events_unbound20:40:181
3004786998276,4cyclictest2991607-21kworker/u8:0+flush-179:019:25:161
3004786998275,5cyclictest2991607-21kworker/u8:0+events_unbound19:10:181
3004785998278,3cyclictest3012619-21kworker/u8:1+events_unbound19:35:220
3004785998275,6cyclictest3085255-21kworker/u8:0+events_unbound23:35:220
3004786998175,4cyclictest3038584-21kworker/u8:3+events_unbound22:35:211
3004785998176,4cyclictest2991607-21kworker/u8:0+events_unbound19:20:190
3004785998176,3cyclictest3077358-21kworker/u8:3+events_unbound00:15:160
3004785998075,4cyclictest3038584-21kworker/u8:3+events_unbound22:15:240
3004785997974,4cyclictest3012619-21kworker/u8:1+events_unbound20:11:340
3004785997971,3cyclictest3074142-21kworker/u8:2+events_unbound22:45:220
3004785997969,4cyclictest3000181-21kworker/u8:1+events_unbound19:17:350
3004785997873,4cyclictest3085255-21kworker/u8:0+events_unbound00:28:180
3004786997771,4cyclictest3085255-21kworker/u8:0+events_unbound23:20:221
3004785997773,3cyclictest3012619-21kworker/u8:1+events_unbound19:50:190
3004785997773,3cyclictest2991607-21kworker/u8:0+events_unbound19:45:220
3004785997772,4cyclictest3077358-21kworker/u8:3+events_unbound00:00:250
3004786997671,3cyclictest2991607-21kworker/u8:0+flush-179:019:15:211
3004786997569,4cyclictest3038584-21kworker/u8:3+flush-179:021:30:131
3004786997569,4cyclictest3012619-21kworker/u8:1+flush-179:019:35:191
3004785997570,4cyclictest3077358-21kworker/u8:3+events_unbound00:20:360
3004785997570,4cyclictest3077358-21kworker/u8:3+events_unbound00:20:360
3004785997470,3cyclictest3032231-21kworker/u8:3+events_unbound20:38:350
3004785997469,4cyclictest3045010-21kworker/u8:1+events_unbound22:09:570
3004785997467,5cyclictest3086885-21latency_hist23:25:010
3004785997466,3cyclictest2991607-21kworker/u8:0+events_unbound19:30:150
3004786997368,3cyclictest2991607-21kworker/u8:0+flush-179:019:20:151
3004786997367,5cyclictest3021371-21kworker/u8:2+flush-179:020:15:201
3004785997369,3cyclictest3035414-21kworker/u8:0+events_unbound20:45:140
3004786997263,8cyclictest3106566-21apt-get00:25:131
3004786997166,3cyclictest3077358-21kworker/u8:3+events_unbound00:15:231
3004785997167,3cyclictest3043372-21kworker/u8:2+flush-179:021:39:560
3004786997065,4cyclictest3038584-21kworker/u8:3+events_unbound21:55:241
3004785997065,4cyclictest3077358-21kworker/u8:3+events_unbound23:54:550
3004785996965,3cyclictest2991607-21kworker/u8:0+events_unbound19:57:290
3004785996965,3cyclictest2991607-21kworker/u8:0+events_unbound19:57:290
3004786996864,3cyclictest3077358-21kworker/u8:3+flush-179:000:10:271
3004785996864,3cyclictest3012619-21kworker/u8:1+events_unbound20:42:350
3004785996863,4cyclictest3038584-21kworker/u8:3+events_unbound22:12:340
3004785996863,4cyclictest3038584-21kworker/u8:3+events_unbound21:30:180
3004785996763,3cyclictest3043372-21kworker/u8:2+events_unbound21:40:190
3004785996662,3cyclictest3021371-21kworker/u8:2+events_unbound20:09:550
3004785996661,4cyclictest3038584-21kworker/u8:3+flush-179:020:53:350
3004785996659,5cyclictest3000181-21kworker/u8:1+flush-179:019:15:010
3004785996561,3cyclictest3077358-21kworker/u8:3+events_unbound00:08:240
3004785996561,3cyclictest3038584-21kworker/u8:3+events_unbound22:24:560
3004785996561,3cyclictest3038584-21kworker/u8:3+events_unbound21:47:340
3004785996560,4cyclictest3045010-21kworker/u8:1+events_unbound22:01:010
3004785996556,4cyclictest3021371-21kworker/u8:2+events_unbound20:15:250
3004786996453,9cyclictest3030912-21apt-get20:30:121
3004785996460,3cyclictest3040172-21kworker/u8:0+events_unbound20:59:350
3004785996460,3cyclictest3038584-21kworker/u8:3+events_unbound22:33:340
3004785996455,4cyclictest3077358-21kworker/u8:3+events_unbound23:40:220
3004786996358,4cyclictest3077358-21kworker/u8:3+flush-179:023:40:261
3004785996360,2cyclictest3077358-21kworker/u8:3+flush-179:000:40:010
3004786996153,6cyclictest3085255-21kworker/u8:0+events_unbound23:35:151
3004785996157,3cyclictest3085255-21kworker/u8:0+events_unbound23:27:350
3004785996055,4cyclictest3043372-21kworker/u8:2+events_unbound21:10:120
3004785995848,4cyclictest3021371-21kworker/u8:2+events_unbound20:30:240
3004785995750,6cyclictest3077358-21kworker/u8:3+flush-179:000:30:180
3004788995653,2cyclictest0-21swapper/220:47:592
3004788995552,2cyclictest0-21swapper/220:18:592
3004785995349,3cyclictest3069336-21kworker/u8:0+events_unbound22:50:180
3004785995348,4cyclictest3085255-21kworker/u8:0+events_unbound23:16:350
3004786995247,4cyclictest3077358-21kworker/u8:3+flush-179:023:33:571
3004785995146,4cyclictest3077358-21kworker/u8:3+flush-179:023:05:250
4577091480,13ptp4l441ktimers/319:10:013
3004791994846,1cyclictest0-21swapper/323:51:593
3004788994845,2cyclictest0-21swapper/222:30:592
3004786994742,4cyclictest3077358-21kworker/u8:3+flush-179:023:29:551
3004791994543,1cyclictest0-21swapper/322:52:593
300479199400,39cyclictest3052948-21turbostat21:40:003
3004785993935,3cyclictest3072552-21systemctl22:40:000
3004788993835,2cyclictest0-21swapper/200:25:592
3004788993834,2cyclictest0-21swapper/220:44:562
300478899380,35cyclictest0-21swapper/223:49:552
300478899380,35cyclictest0-21swapper/220:29:552
3004791993735,1cyclictest0-21swapper/319:45:583
3004791993734,2cyclictest0-21swapper/323:11:583
3004788993734,2cyclictest0-21swapper/221:20:592
3004788993734,2cyclictest0-21swapper/219:49:542
3004788993734,2cyclictest0-21swapper/219:28:592
3004788993734,2cyclictest0-21swapper/200:21:592
3004788993734,2cyclictest0-21swapper/200:21:582
300478899370,35cyclictest0-21swapper/222:49:592
4577091360,3ptp4l61490irq/134-eno1-TxRx-022:05:143
3004791993634,1cyclictest0-21swapper/322:58:583
300479199360,35cyclictest0-21swapper/321:33:593
300479199360,35cyclictest0-21swapper/320:59:583
300479199360,35cyclictest0-21swapper/320:46:583
300479199360,35cyclictest0-21swapper/300:07:593
300479199360,1cyclictest0-21swapper/320:39:543
3004788993634,1cyclictest0-21swapper/200:39:582
3004788993633,2cyclictest0-21swapper/221:32:592
3004788993633,2cyclictest0-21swapper/200:17:002
300478899360,34cyclictest0-21swapper/222:10:002
3004788993532,2cyclictest0-21swapper/221:43:592
300478899350,1cyclictest0-21swapper/223:55:592
3004785993530,4cyclictest3043372-21kworker/u8:2+events_unbound21:25:560
3004791993432,1cyclictest0-21swapper/319:34:003
3004791993432,1cyclictest0-21swapper/300:34:563
3004791993331,1cyclictest0-21swapper/319:10:583
3004791993330,2cyclictest0-21swapper/323:05:593
3004788993330,2cyclictest0-21swapper/222:59:562
3004788993330,2cyclictest0-21swapper/222:18:592
3004791993230,1cyclictest0-21swapper/321:48:593
3004791993230,1cyclictest0-21swapper/321:11:593
3004788993229,2cyclictest0-21swapper/223:38:592
3004788993229,2cyclictest0-21swapper/221:06:592
3004791993128,2cyclictest0-21swapper/322:40:133
3004791993028,1cyclictest0-21swapper/323:48:003
300479199300,28cyclictest0-21swapper/322:35:123
3004788993027,2cyclictest0-21swapper/222:24:592
3004788993027,2cyclictest0-21swapper/222:14:552
300478899300,2cyclictest0-21swapper/219:30:102
300478899300,28cyclictest0-21swapper/220:00:022
300478899300,28cyclictest0-21swapper/220:00:012
3004791992927,1cyclictest0-21swapper/323:42:593
3004791992927,1cyclictest0-21swapper/322:32:003
3004791992927,1cyclictest0-21swapper/321:03:593
3004791992926,2cyclictest0-21swapper/322:45:133
3004791992924,4cyclictest3104459-21turbostat00:19:593
300479199290,28cyclictest0-21swapper/323:00:133
300479199290,28cyclictest0-21swapper/300:25:023
300479199290,28cyclictest0-21swapper/300:25:023
300479199290,27cyclictest0-21swapper/320:20:133
300479199290,27cyclictest0-21swapper/320:00:023
300479199290,27cyclictest0-21swapper/319:35:133
3004788992927,1cyclictest0-21swapper/223:05:132
3004788992927,1cyclictest0-21swapper/221:35:132
3004788992926,2cyclictest0-21swapper/220:05:142
3004788992926,2cyclictest0-21swapper/200:03:002
300478899290,27cyclictest0-21swapper/223:10:132
300478899290,27cyclictest0-21swapper/221:10:132
300478899290,27cyclictest0-21swapper/220:50:112
300478899290,1cyclictest0-21swapper/221:55:142
4577091280,7ptp4l441ktimers/320:30:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-019:30:003
4577091280,6ptp4l441ktimers/323:35:003
4577091280,6ptp4l441ktimers/319:20:013
4577091280,5ptp4l441ktimers/322:30:013
4577091280,5ptp4l441ktimers/321:20:013
4577091280,5ptp4l441ktimers/321:20:013
4577091280,4ptp4l61490irq/134-eno1-TxRx-021:29:553
3004791992826,1cyclictest0-21swapper/323:55:133
3004791992826,1cyclictest0-21swapper/321:40:143
3004791992826,1cyclictest0-21swapper/321:20:143
3004791992826,1cyclictest0-21swapper/320:15:593
300479199280,27cyclictest0-21swapper/300:25:133
300479199280,26cyclictest0-21swapper/322:15:113
300479199280,26cyclictest0-21swapper/320:00:013
300479199280,26cyclictest0-21swapper/320:00:013
300479199280,26cyclictest0-21swapper/319:50:023
300479199280,26cyclictest0-21swapper/319:40:133
3004788992826,1cyclictest0-21swapper/221:50:132
3004788992825,2cyclictest0-21swapper/223:26:592
3004788992825,2cyclictest0-21swapper/222:52:592
3004788992825,2cyclictest0-21swapper/220:56:002
3004788992825,2cyclictest0-21swapper/219:53:592
3004788992825,2cyclictest0-21swapper/219:43:592
3004788992825,2cyclictest0-21swapper/219:23:002
300478899280,26cyclictest0-21swapper/222:05:012
300478899280,26cyclictest0-21swapper/221:00:122
300478899280,26cyclictest0-21swapper/219:40:002
4577091270,6ptp4l61490irq/134-eno1-TxRx-020:09:593
4577091270,6ptp4l441ktimers/323:39:563
4577091270,6ptp4l441ktimers/300:15:003
4577091270,5ptp4l61490irq/134-eno1-TxRx-021:55:013
3004791992725,1cyclictest3035445-21turbostat20:45:003
3004791992725,1cyclictest0-21swapper/322:00:593
3004791992720,5cyclictest3099695-21turbostat00:05:003
300479199270,26cyclictest0-21swapper/323:23:593
3004788992725,1cyclictest0-21swapper/220:20:142
3004788992724,2cyclictest0-21swapper/223:31:592
3004788992724,2cyclictest0-21swapper/220:04:592
300478899270,25cyclictest0-21swapper/220:35:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-020:14:543
4577091260,5ptp4l441ktimers/322:15:003
4577091260,5ptp4l441ktimers/320:34:563
3004791992624,1cyclictest0-21swapper/319:21:003
3004791992623,2cyclictest0-21swapper/321:05:143
3004788992622,2cyclictest0-21swapper/223:20:592
300478899260,2cyclictest0-21swapper/223:03:592
300478899260,2cyclictest0-21swapper/221:49:592
300478899260,24cyclictest0-21swapper/221:25:152
300478899260,24cyclictest0-21swapper/220:34:592
300478899260,24cyclictest0-21swapper/219:17:582
4577091250,5ptp4l441ktimers/323:19:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-022:24:553
4577091250,4ptp4l441ktimers/323:29:543
3004791992522,2cyclictest0-21swapper/300:37:593
300478899250,2cyclictest0-21swapper/200:13:592
4577091240,4ptp4l61490irq/134-eno1-TxRx-021:59:563
3004788992421,2cyclictest0-21swapper/221:16:582
3004788992421,2cyclictest0-21swapper/221:16:582
231999240,13rtkit-daemon3003369-21grep19:05:160
3004788992320,2cyclictest0-21swapper/223:54:552
3004788992320,2cyclictest0-21swapper/220:10:592
3004791992220,1cyclictest0-21swapper/320:50:123
3004788992220,1cyclictest0-21swapper/222:35:122
3004788992219,2cyclictest0-21swapper/219:10:162
3004788992119,1cyclictest0-21swapper/222:44:592
3004788992119,1cyclictest0-21swapper/222:25:142
3004788992118,2cyclictest0-21swapper/200:09:552
3004788991916,2cyclictest0-21swapper/223:16:592
3004786991914,4cyclictest0-21swapper/119:10:011
3004788991311,1cyclictest0-21swapper/200:34:592
30047889963,2cyclictest0-21swapper/223:41:492
30047889930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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