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2026-05-15 - 14:11
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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 May 15, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35653599108101,5cyclictest434178-21kworker/u8:0+flush-179:000:03:591
3565359910192,7cyclictest406142-21kworker/u8:0+flush-179:022:00:011
356531999991,6cyclictest378951-21kworker/u8:0+events_unbound20:30:000
356535999892,4cyclictest411298-21kworker/u8:3+flush-179:022:30:241
356535999488,5cyclictest424377-21kworker/u8:2+events_unbound23:10:281
356531999380,5cyclictest392999-21kworker/u8:0+events_unbound21:15:280
356531999286,4cyclictest424377-21kworker/u8:2+flush-179:022:45:280
356531999186,4cyclictest406142-21kworker/u8:0+flush-179:021:55:240
356531999185,4cyclictest353368-21kworker/u8:1+events_unbound19:25:140
356531999179,9cyclictest450118-21cupsd00:00:000
356531999177,4cyclictest353368-21kworker/u8:1+flush-179:019:10:170
356531999177,4cyclictest353368-21kworker/u8:1+flush-179:019:10:160
356535999083,5cyclictest412934-21latency_hist22:05:001
356535998882,4cyclictest456862-21kworker/u8:0+flush-179:000:35:001
356531998880,6cyclictest434178-21kworker/u8:0+flush-179:023:35:000
356531998780,5cyclictest372655-21kworker/u8:3+flush-179:020:15:000
356531998678,5cyclictest434178-21kworker/u8:0+flush-179:023:50:140
356531998579,5cyclictest343517-21kworker/u8:0+events_unbound19:10:010
356531998472,4cyclictest392999-21kworker/u8:0+events_unbound21:10:010
356531998469,6cyclictest411298-21kworker/u8:3+events_unbound22:30:230
356531998378,4cyclictest445328-21kworker/u8:1+events_unbound00:04:020
356535998276,4cyclictest424377-21kworker/u8:2+events_unbound22:40:161
356535998272,7cyclictest411298-21kworker/u8:3+flush-179:022:50:251
356535998271,8cyclictest409478-21latency_hist21:55:011
356531998278,3cyclictest434178-21kworker/u8:0+flush-179:023:20:240
356531998274,6cyclictest445328-21kworker/u8:1+flush-179:023:45:150
356535998165,7cyclictest1213033-21systemd-journal22:10:001
356538998073,5cyclictest372602-21turbostat20:00:003
356535998073,4cyclictest364364-21kworker/u8:0+flush-179:019:35:131
356535998070,7cyclictest453305-21latency_hist00:10:011
356535998070,7cyclictest453305-21latency_hist00:10:001
356535998069,9cyclictest455146-21apt-get00:15:111
356531998073,4cyclictest392999-21kworker/u8:0+flush-179:021:20:210
356535997973,4cyclictest383722-21kworker/u8:2+events_unbound20:45:011
356535997872,4cyclictest403095-21kworker/u8:1+flush-179:021:40:011
356535997871,5cyclictest395409-21kworker/u8:2+flush-179:021:10:151
356535997769,5cyclictest343517-21kworker/u8:0+flush-179:019:10:201
356535997769,5cyclictest343517-21kworker/u8:0+flush-179:019:10:191
356535997661,13cyclictest417947-21kworker/u8:0+flush-179:022:40:001
356531997666,8cyclictest445328-21kworker/u8:1+flush-179:000:30:000
356535997570,4cyclictest434178-21kworker/u8:0+flush-179:000:10:251
356535997564,4cyclictest424377-21kworker/u8:2+flush-179:022:55:141
356531997570,3cyclictest364364-21kworker/u8:0+flush-179:019:50:200
356531997569,5cyclictest377359-21kworker/u8:2+flush-179:020:15:250
356535997368,4cyclictest359854-21kworker/u8:2+flush-179:019:20:251
356531997369,3cyclictest412909-21kworker/u8:1+flush-179:022:15:240
356531997368,4cyclictest414510-21kworker/u8:2+events_unbound22:25:230
356531997368,4cyclictest414510-21kworker/u8:2+events_unbound22:25:220
356531997367,4cyclictest434178-21kworker/u8:0+events_unbound00:05:180
356531997367,4cyclictest434178-21kworker/u8:0+events_unbound00:05:180
356531997367,4cyclictest424377-21kworker/u8:2+flush-179:023:15:210
356531997363,4cyclictest456862-21kworker/u8:0+events_unbound00:30:150
356531997266,4cyclictest398311-21kworker/u8:2+events_unbound21:25:240
356531997165,5cyclictest437382-21kworker/u8:3+flush-179:023:25:220
356531997165,5cyclictest388817-21kworker/u8:3+events_unbound20:55:000
356531997165,5cyclictest388817-21kworker/u8:3+events_unbound20:55:000
356531997162,7cyclictest1213033-21systemd-journal22:45:010
356531997063,6cyclictest432278-21kworker/u8:1+events_unbound23:05:020
356531997061,7cyclictest461257-21kworker/u8:2+events_unbound00:35:220
356535996963,4cyclictest359854-21kworker/u8:2+flush-179:019:30:131
356535996961,6cyclictest364364-21kworker/u8:0+flush-179:019:55:251
356535996864,3cyclictest434178-21kworker/u8:0+flush-179:023:20:251
356535996862,3cyclictest372655-21kworker/u8:3+flush-179:020:25:191
356535996861,5cyclictest434178-21kworker/u8:0+flush-179:023:30:151
356535996859,6cyclictest388782-21latency_hist20:50:011
356531996863,4cyclictest406142-21kworker/u8:0+events_unbound22:00:210
356531996863,3cyclictest378951-21kworker/u8:0+flush-179:020:30:140
356535996762,4cyclictest445328-21kworker/u8:1+flush-179:000:29:561
356535996762,4cyclictest364364-21kworker/u8:0+flush-179:019:49:551
356535996761,4cyclictest424377-21kworker/u8:2+flush-179:023:15:251
356531996763,3cyclictest403095-21kworker/u8:1+events_unbound21:50:240
356531996762,4cyclictest395409-21kworker/u8:2+flush-179:021:10:220
356531996761,4cyclictest383722-21kworker/u8:2+events_unbound20:45:130
356535996659,5cyclictest424377-21kworker/u8:2+flush-179:023:40:221
356535996659,5cyclictest424377-21kworker/u8:2+flush-179:022:45:161
356535996658,5cyclictest353368-21kworker/u8:1+flush-179:019:25:141
356535996654,9cyclictest416112-21apt-get22:15:001
356531996658,6cyclictest424377-21kworker/u8:2+flush-179:023:15:000
356531996656,8cyclictest1213033-21systemd-journal20:40:000
356535996559,4cyclictest369450-21kworker/u8:1+events_unbound20:05:261
356535996558,5cyclictest417947-21kworker/u8:0+flush-179:022:25:001
356535996556,6cyclictest387186-21kworker/u8:1+flush-179:021:05:141
356535996554,9cyclictest372867-21apt-get20:00:111
356531996560,3cyclictest343517-21kworker/u8:0+events_unbound19:15:180
356531996557,7cyclictest424377-21kworker/u8:2+events_unbound22:55:010
35653199651,61cyclictest1-21systemd21:44:540
356535996457,5cyclictest424377-21kworker/u8:2+events_unbound23:35:231
356535996457,5cyclictest398586-21kworker/u8:3+flush-179:021:30:001
356535996457,5cyclictest382412-21apt-get20:30:111
356535996453,8cyclictest419815-21apt-get22:25:091
356535996453,8cyclictest419815-21apt-get22:25:091
356535996356,4cyclictest372655-21kworker/u8:3+events_unbound20:20:131
356531996359,3cyclictest456862-21kworker/u8:0+flush-179:000:20:150
356531996356,5cyclictest362769-21kworker/u8:3+events_unbound19:45:230
356531996354,7cyclictest432298-21latency_hist23:05:010
356531996257,4cyclictest369450-21kworker/u8:1+events_unbound20:05:000
356531996257,4cyclictest364364-21kworker/u8:0+flush-179:019:35:210
356531996157,3cyclictest411298-21kworker/u8:3+flush-179:022:35:260
356531996156,4cyclictest403095-21kworker/u8:1+events_unbound21:35:270
356531996155,4cyclictest388817-21kworker/u8:3+flush-179:020:55:200
356531996151,8cyclictest1213033-21systemd-journal19:45:000
356535996054,5cyclictest1213033-21systemd-journal21:24:531
356535996054,4cyclictest388817-21kworker/u8:3+flush-179:020:55:201
356535996049,4cyclictest369450-21kworker/u8:1+events_unbound20:10:221
356531996053,5cyclictest424377-21kworker/u8:2+flush-179:022:55:180
356531995954,4cyclictest412909-21kworker/u8:1+events_unbound22:12:530
356535995851,5cyclictest403095-21kworker/u8:1+flush-179:021:40:181
356531995853,4cyclictest417947-21kworker/u8:0+events_unbound22:20:150
356531995853,3cyclictest353368-21kworker/u8:1+flush-179:019:20:100
356531995852,5cyclictest398586-21kworker/u8:3+events_unbound21:30:210
356535995750,5cyclictest353368-21kworker/u8:1+events_unbound19:20:001
356531995754,2cyclictest0-21swapper/000:18:000
356531995753,3cyclictest412909-21kworker/u8:1+flush-179:022:05:180
356535995649,5cyclictest417947-21kworker/u8:0+events_unbound22:20:001
356535995542,4cyclictest411298-21kworker/u8:3+events_unbound23:00:161
356531995551,3cyclictest372655-21kworker/u8:3+flush-179:020:05:550
356531995549,5cyclictest424377-21kworker/u8:2+flush-179:023:35:210
356531995547,4cyclictest387186-21kworker/u8:1+events_unbound21:00:220
356531995543,5cyclictest434178-21kworker/u8:0+events_unbound23:40:170
356535995449,4cyclictest411298-21kworker/u8:3+flush-179:023:05:201
356535995449,3cyclictest366481-21kworker/u8:1+flush-179:019:40:261
356531995449,4cyclictest383722-21kworker/u8:2+flush-179:020:40:220
356531995445,6cyclictest407891-21latency_hist21:50:010
356535995345,6cyclictest387186-21kworker/u8:1+flush-179:020:50:251
356535995345,6cyclictest387186-21kworker/u8:1+flush-179:020:50:251
356535995248,3cyclictest392999-21kworker/u8:0+events_unbound21:15:261
356535995046,3cyclictest445328-21kworker/u8:1+events_unbound00:20:211
356535995045,4cyclictest445328-21kworker/u8:1+events_unbound23:45:241
4577091490,13ptp4l61490irq/134-eno1-TxRx-019:10:003
356535994940,7cyclictest510-21rs:main1
356535994843,4cyclictest392999-21kworker/u8:0+flush-179:021:00:261
356536994744,2cyclictest0-21swapper/200:17:592
356535994739,6cyclictest1213033-21systemd-journal00:39:531
356531994743,3cyclictest359854-21kworker/u8:2+flush-179:019:30:240
356535994641,4cyclictest445328-21kworker/u8:1+flush-179:023:50:251
356535994641,4cyclictest372655-21kworker/u8:3+flush-179:020:35:541
356535994635,9cyclictest401778-21apt-get21:30:121
356531994536,3cyclictest434178-21kworker/u8:0+events_unbound00:10:200
35653599430,2cyclictest0-21swapper/100:00:001
356535994233,7cyclictest440596-21latency_hist23:30:001
356531994237,4cyclictest378951-21kworker/u8:0+events_unbound20:20:230
35653899410,39cyclictest416117-21turbostat22:15:003
356536994138,2cyclictest0-21swapper/222:10:592
4577091400,4ptp4l431rcuc/322:59:593
356538994034,5cyclictest391979-21turbostat21:00:003
356536994036,2cyclictest0-21swapper/219:43:582
356531993933,4cyclictest369450-21kworker/u8:1+events_unbound19:55:170
356536993834,2cyclictest0-21swapper/222:04:562
356535993835,2cyclictest0-21swapper/119:50:591
356536993734,2cyclictest0-21swapper/221:25:002
356536993734,2cyclictest0-21swapper/221:18:592
356536993734,2cyclictest0-21swapper/219:28:582
35653699370,35cyclictest0-21swapper/223:40:582
35653699370,35cyclictest0-21swapper/223:00:582
35653699370,35cyclictest0-21swapper/221:55:582
35653699370,35cyclictest0-21swapper/221:06:592
35653699370,30cyclictest0-21swapper/222:48:592
35653699370,29cyclictest0-21swapper/220:34:552
356535993734,2cyclictest0-21swapper/121:45:591
356538993634,1cyclictest0-21swapper/321:09:553
35653899360,35cyclictest0-21swapper/323:36:593
35653899360,35cyclictest0-21swapper/321:02:593
35653899360,35cyclictest0-21swapper/320:27:593
356536993633,2cyclictest0-21swapper/223:46:002
356536993633,2cyclictest0-21swapper/222:15:592
35653699360,1cyclictest0-21swapper/221:25:592
356538993533,1cyclictest0-21swapper/321:34:543
35653899350,34cyclictest0-21swapper/300:12:593
356536993532,2cyclictest0-21swapper/223:29:542
356536993532,2cyclictest0-21swapper/221:41:592
356536993532,2cyclictest0-21swapper/220:15:592
35653699350,1cyclictest0-21swapper/223:59:592
35653699350,1cyclictest0-21swapper/220:40:592
4577091340,6ptp4l441ktimers/323:25:003
356538993432,1cyclictest0-21swapper/300:30:593
356538993432,1cyclictest0-21swapper/300:20:593
356536993432,1cyclictest0-21swapper/200:29:592
356536993431,2cyclictest0-21swapper/220:22:592
35653699340,30cyclictest0-21swapper/200:35:002
356538993331,1cyclictest0-21swapper/323:59:593
356538993331,1cyclictest0-21swapper/300:39:563
356536993331,1cyclictest0-21swapper/223:54:592
356536993331,1cyclictest0-21swapper/219:49:592
356536993330,2cyclictest0-21swapper/223:11:592
356536993329,2cyclictest0-21swapper/223:19:562
356536993329,2cyclictest0-21swapper/222:57:592
356538993231,1cyclictest0-21swapper/322:35:003
356538993230,1cyclictest0-21swapper/322:36:593
356538993230,1cyclictest0-21swapper/321:46:593
356538993230,1cyclictest0-21swapper/321:21:593
356538993229,2cyclictest0-21swapper/322:50:003
356538993228,3cyclictest365983-21turbostat19:44:543
356536993229,2cyclictest0-21swapper/220:54:552
356536993229,2cyclictest0-21swapper/220:54:552
35653699320,30cyclictest0-21swapper/222:38:592
356538993129,1cyclictest0-21swapper/321:35:593
356538993129,1cyclictest0-21swapper/320:33:593
356536993128,2cyclictest0-21swapper/220:40:002
356536993127,2cyclictest0-21swapper/220:03:592
4577091300,4ptp4l441ktimers/323:49:553
356538993028,1cyclictest0-21swapper/323:15:593
356538993028,1cyclictest0-21swapper/320:54:593
356538993028,1cyclictest0-21swapper/320:54:593
356538993028,1cyclictest0-21swapper/319:52:593
356538993028,1cyclictest0-21swapper/300:29:553
356538993027,2cyclictest0-21swapper/321:55:133
356538993027,2cyclictest0-21swapper/319:45:143
35653899300,28cyclictest0-21swapper/323:05:033
35653699300,28cyclictest0-21swapper/200:20:142
4577091290,6ptp4l441ktimers/320:10:013
356538992927,1cyclictest0-21swapper/323:03:003
35653899290,27cyclictest0-21swapper/320:40:033
35653899290,26cyclictest0-21swapper/322:25:113
35653899290,26cyclictest0-21swapper/322:25:103
35653899290,1cyclictest0-21swapper/323:30:133
356536992927,1cyclictest0-21swapper/200:04:592
356536992926,2cyclictest0-21swapper/223:22:582
356536992926,2cyclictest0-21swapper/222:43:592
356536992926,2cyclictest0-21swapper/219:35:132
356536992926,2cyclictest0-21swapper/219:20:592
35653699290,27cyclictest0-21swapper/200:05:162
35653699290,27cyclictest0-21swapper/200:05:162
4577091280,7ptp4l61490irq/134-eno1-TxRx-020:05:003
4577091280,6ptp4l441ktimers/321:44:563
4577091280,6ptp4l441ktimers/300:20:013
4577091280,4ptp4l441ktimers/320:15:003
356538992826,1cyclictest0-21swapper/323:53:583
356538992826,1cyclictest0-21swapper/320:36:593
356538992826,1cyclictest0-21swapper/319:13:593
356538992826,1cyclictest0-21swapper/319:13:583
356538992826,1cyclictest0-21swapper/300:05:163
356538992826,1cyclictest0-21swapper/300:05:153
356538992825,2cyclictest0-21swapper/322:17:593
35653899280,27cyclictest401532-21turbostat21:30:003
35653899280,27cyclictest0-21swapper/323:13:593
356536992825,2cyclictest0-21swapper/223:35:132
356536992825,2cyclictest0-21swapper/221:50:142
356536992825,2cyclictest0-21swapper/221:10:142
356536992825,2cyclictest0-21swapper/221:00:132
35653699280,26cyclictest0-21swapper/220:05:142
35653699280,26cyclictest0-21swapper/219:55:592
4577091270,6ptp4l441ktimers/319:39:563
4577091270,4ptp4l61490irq/134-eno1-TxRx-000:05:013
356538992725,1cyclictest0-21swapper/322:40:583
356538992725,1cyclictest0-21swapper/322:00:133
356538992724,2cyclictest0-21swapper/320:48:593
35653899270,26cyclictest0-21swapper/322:54:593
356536992725,1cyclictest0-21swapper/220:15:012
356536992724,2cyclictest0-21swapper/221:45:142
356536992724,2cyclictest0-21swapper/200:37:582
356536992723,2cyclictest0-21swapper/219:30:582
35653699270,25cyclictest0-21swapper/222:06:002
35653699270,25cyclictest0-21swapper/221:30:592
35653699270,25cyclictest0-21swapper/220:58:592
35653699270,24cyclictest0-21swapper/223:34:562
35653699270,19cyclictest0-21swapper/222:34:552
231999270,15rtkit-daemon356401-21munin-run19:10:001
4577091260,6ptp4l441ktimers/321:54:563
4577091260,5ptp4l61490irq/134-eno1-TxRx-022:25:013
4577091260,5ptp4l61490irq/134-eno1-TxRx-021:14:553
4577091260,5ptp4l61490irq/134-eno1-TxRx-020:24:553
4577091260,5ptp4l61490irq/134-eno1-TxRx-019:34:553
4577091260,5ptp4l441ktimers/320:19:553
4577091260,5ptp4l441ktimers/319:29:573
4577091260,4ptp4l441ktimers/321:20:013
356538992623,2cyclictest0-21swapper/323:44:003
356538992623,2cyclictest0-21swapper/319:19:593
35653899260,25cyclictest0-21swapper/323:30:003
35653899260,25cyclictest0-21swapper/319:20:593
35653899260,1cyclictest0-21swapper/322:06:593
356536992623,2cyclictest0-21swapper/220:47:592
35653699260,2cyclictest0-21swapper/223:07:592
35653699260,24cyclictest0-21swapper/222:22:002
35653699260,23cyclictest0-21swapper/220:30:002
356536992522,2cyclictest0-21swapper/222:26:592
356536992522,2cyclictest0-21swapper/222:26:582
356536992522,2cyclictest0-21swapper/219:16:592
356536992521,2cyclictest0-21swapper/221:37:592
356536992422,1cyclictest0-21swapper/200:14:592
356536992218,2cyclictest0-21swapper/219:10:092
356536992218,2cyclictest0-21swapper/219:10:092
356536991916,2cyclictest0-21swapper/219:51:592
356536991714,2cyclictest0-21swapper/222:53:002
3565369940,1cyclictest0-21swapper/219:10:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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