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2026-06-29 - 06:31
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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 Mon Jun 29, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154604999140131,6cyclictest1568426-21kworker/u8:2+flush-179:020:30:010
15460499912398,15cyclictest1566780-21latency_hist20:15:010
154604999122110,8cyclictest1603673-21latency_hist22:10:010
154605299121110,8cyclictest1605258-21latency_hist22:15:011
15460529910798,6cyclictest1563060-21kworker/u8:2+flush-179:020:00:241
15460529910798,6cyclictest1563060-21kworker/u8:2+flush-179:020:00:241
15460499910594,8cyclictest1639460-21kworker/u8:2+flush-179:000:35:240
15460529910190,9cyclictest1639512-40mandb00:00:011
1546052999585,8cyclictest1594384-21apt-get21:40:121
1546052999384,6cyclictest1567016-21kworker/u8:0+flush-179:020:35:221
1546052999382,8cyclictest1607106-21kworker/u8:0+flush-179:022:20:221
1546052999380,11cyclictest1213033-21systemd-journal19:35:001
1546052999285,5cyclictest1598867-21kworker/u8:0+flush-179:022:00:001
1546052999284,6cyclictest1565194-21latency_hist20:10:011
1546049999283,6cyclictest1558291-21kworker/u8:1+events_unbound20:20:000
1546052999079,9cyclictest1213033-21systemd-journal22:05:011
1546049999082,5cyclictest1642969-21kworker/u8:0+flush-179:000:10:170
1546049999081,6cyclictest1567016-21kworker/u8:0+flush-179:021:15:240
1546052998981,6cyclictest1567016-21kworker/u8:0+flush-179:021:45:231
1546052998881,5cyclictest1639460-21kworker/u8:2+flush-179:000:20:011
1546052998879,6cyclictest1567016-21kworker/u8:0+flush-179:021:30:171
1546052998878,8cyclictest1649356-21apt-get00:30:121
1546052998877,8cyclictest1642969-21kworker/u8:0+flush-179:000:10:231
1546049998873,12cyclictest3098085-21cups-browsed00:00:000
1546049998670,9cyclictest1213033-21systemd-journal19:20:000
1546049998579,4cyclictest1605243-21kworker/u8:2+events_unbound22:35:010
1546052998475,6cyclictest1618238-21kworker/u8:2+flush-179:023:20:211
1546049998377,4cyclictest1605243-21kworker/u8:2+flush-179:022:35:170
1546049998371,9cyclictest1213033-21systemd-journal00:03:590
1546052998268,12cyclictest1577970-21kworker/u8:3+flush-179:021:25:011
1546049998276,4cyclictest1598867-21kworker/u8:0+flush-179:021:55:240
1546049998271,9cyclictest1578191-21apt-get20:50:120
1546049998271,7cyclictest1567016-21kworker/u8:0+flush-179:021:30:260
1546052998173,5cyclictest1626494-21kworker/u8:0+flush-179:023:50:241
1546052998172,6cyclictest1577970-21kworker/u8:3+flush-179:021:35:221
1546049998069,8cyclictest1621178-21kworker/u8:1+flush-179:023:05:120
1546055997973,4cyclictest1631534-21turbostat23:35:013
1546055997951,27cyclictest0-21swapper/300:40:003
1546052997972,5cyclictest1605243-21kworker/u8:2+flush-179:022:15:221
1546049997970,6cyclictest1558291-21kworker/u8:1+flush-179:019:50:170
1546052997871,5cyclictest1552442-21kworker/u8:0+events_unbound19:45:241
1546052997868,7cyclictest1605243-21kworker/u8:2+flush-179:022:35:241
1546049997873,3cyclictest1605243-21kworker/u8:2+flush-179:022:25:000
1546049997771,4cyclictest1639460-21kworker/u8:2+flush-179:000:15:270
1546049997665,7cyclictest1616374-21kworker/u8:1+flush-179:022:50:230
1546052997568,4cyclictest1623023-21kworker/u8:3+flush-179:023:10:171
1546052997563,8cyclictest1529981-21kworker/u8:0+flush-179:019:20:011
1546049997567,5cyclictest1639460-21kworker/u8:2+events_unbound00:20:250
1546049997566,6cyclictest1618238-21kworker/u8:2+flush-179:023:40:250
1546049997565,8cyclictest1529981-21kworker/u8:0+events_unbound19:10:030
1546052997465,6cyclictest1621178-21kworker/u8:1+flush-179:023:05:151
1546052997464,8cyclictest1616374-21kworker/u8:1+events_unbound22:50:141
1546049997465,6cyclictest1606855-21latency_hist22:20:010
1546049997463,8cyclictest1634972-21apt-get23:45:120
1546052997366,5cyclictest1567016-21kworker/u8:0+flush-179:020:55:221
1546049997362,8cyclictest1572109-21diskstats20:30:150
1546049997361,9cyclictest1625992-21apt-get23:20:010
1546052997165,4cyclictest1607106-21kworker/u8:0+flush-179:022:29:561
1546049997159,9cyclictest1213033-21systemd-journal21:25:000
1546052997061,7cyclictest1639460-21kworker/u8:2+events_unbound00:20:121
1546052996960,6cyclictest1597282-21kworker/u8:1+flush-179:021:50:191
1546049996963,4cyclictest1552711-21apt-get19:30:120
1546052996859,6cyclictest1554025-21kworker/u8:3+flush-179:019:40:171
1546049996856,9cyclictest1213033-21systemd-journal21:05:000
1546049996855,6cyclictest1597282-21kworker/u8:1+events_unbound21:50:240
1546049996758,6cyclictest1641401-21apt-get00:05:110
1546052996660,4cyclictest1552442-21kworker/u8:0+flush-179:019:55:161
1546052996659,4cyclictest1574719-21kworker/u8:2+events_unbound20:40:141
1546049996659,4cyclictest1614828-21latency_hist22:45:010
1546049996656,7cyclictest1639460-21kworker/u8:2+flush-179:000:25:140
1546052996544,4cyclictest1577970-21kworker/u8:3+flush-179:021:15:021
1546049996557,6cyclictest1558291-21kworker/u8:1+events_unbound20:20:240
1546052996458,5cyclictest1549520-21kworker/u8:2+flush-179:019:25:231
1546052996457,5cyclictest1641147-21latency_hist00:05:011
1546052996441,19cyclictest1567016-21kworker/u8:0+flush-179:021:15:171
1546049996458,4cyclictest1577970-21kworker/u8:3+flush-179:021:05:170
1546052996357,5cyclictest1558291-21kworker/u8:1+events_unbound20:15:241
1546052996356,5cyclictest1618238-21kworker/u8:2+flush-179:023:30:221
1546049996358,4cyclictest1626494-21kworker/u8:0+flush-179:023:25:220
1546052996256,5cyclictest1552442-21kworker/u8:0+events_unbound19:35:261
1546052996254,6cyclictest1618238-21kworker/u8:2+flush-179:023:40:001
1546052996254,6cyclictest1567016-21kworker/u8:0+events_unbound20:50:011
1546052996154,5cyclictest1577970-21kworker/u8:3+flush-179:021:25:231
1546049996147,6cyclictest1213033-21systemd-journal23:15:000
1546054996057,2cyclictest0-21swapper/221:29:592
1546049996057,2cyclictest1613277-21kworker/u8:3+events_unbound22:45:220
1546049995951,6cyclictest1639460-21kworker/u8:2+flush-179:000:30:160
1546049995951,6cyclictest1552442-21kworker/u8:0+flush-179:019:55:210
1546049995950,7cyclictest1613277-21kworker/u8:3+flush-179:023:00:270
1546052995852,4cyclictest1613277-21kworker/u8:3+flush-179:022:55:241
1546052995851,6cyclictest1558291-21kworker/u8:1+flush-179:020:10:231
1546052995845,10cyclictest1610300-21apt-get22:30:121
1546052995747,7cyclictest1616415-21latency_hist22:50:011
1546052995746,9cyclictest1645354-21kworker/u8:1+flush-179:000:25:231
1546049995749,6cyclictest1577970-21kworker/u8:3+flush-179:021:25:220
1546052995651,4cyclictest1626494-21kworker/u8:0+events_unbound23:45:211
1546052995649,5cyclictest1613277-21kworker/u8:3+events_unbound23:00:121
1546049995649,5cyclictest1613277-21kworker/u8:3+flush-179:022:55:410
1546052995549,4cyclictest1567016-21kworker/u8:0+flush-179:021:00:221
1546049995547,6cyclictest1567016-21kworker/u8:0+flush-179:020:35:210
1546049995547,5cyclictest1605243-21kworker/u8:2+events_unbound22:25:260
1546049995544,9cyclictest1626496-21apt-get23:20:100
1546049995449,4cyclictest1598867-21kworker/u8:0+flush-179:022:00:150
1546049995444,8cyclictest1213033-21systemd-journal21:40:010
1546052995343,7cyclictest1213033-21systemd-journal20:35:001
1546052995232,19cyclictest1639460-21kworker/u8:2+flush-179:000:10:001
1546049995248,3cyclictest1567016-21kworker/u8:0+flush-179:021:40:260
1546049995146,4cyclictest1618238-21kworker/u8:2+flush-179:023:35:250
1546049995142,7cyclictest1554025-21kworker/u8:3+events_unbound19:40:160
1546052995044,4cyclictest1546041-21cyclictest21:07:591
1546049995045,4cyclictest1597282-21kworker/u8:1+flush-179:022:10:160
1546052994944,4cyclictest1567016-21kworker/u8:0+flush-179:020:25:221
1546052994943,4cyclictest1559082-21apt-get19:50:131
4577091470,10ptp4l61490irq/134-eno1-TxRx-019:05:163
1546052994742,4cyclictest1618238-21kworker/u8:2+flush-179:023:40:231
1546052994741,5cyclictest1558291-21kworker/u8:1+flush-179:020:20:161
1546049994638,6cyclictest1529981-21kworker/u8:0+flush-179:019:20:250
1546049994636,8cyclictest1574719-21kworker/u8:2+events_unbound20:45:000
1546055994441,2cyclictest431rcuc/322:49:563
1546052994441,2cyclictest1571545-21kworker/u8:1+flush-179:020:53:401
1546049994338,3cyclictest1552442-21kworker/u8:0+flush-179:020:00:080
1546049994338,3cyclictest1552442-21kworker/u8:0+flush-179:020:00:080
1546055994240,1cyclictest0-21swapper/319:18:583
154605499420,1cyclictest0-21swapper/219:40:002
1546052994238,3cyclictest1618238-21kworker/u8:2+flush-179:023:15:251
1546052994237,4cyclictest1626494-21kworker/u8:0+events_unbound23:25:151
1546049994236,5cyclictest1567016-21kworker/u8:0+flush-179:021:10:220
1546049994235,5cyclictest1554025-21kworker/u8:3+events_unbound19:45:160
154605599410,40cyclictest0-21swapper/323:58:583
1546052994137,3cyclictest1529981-21kworker/u8:0+flush-179:019:11:071
1546049994135,4cyclictest1-21systemd20:10:010
1546055994034,4cyclictest1558832-21turbostat19:50:003
154605599400,39cyclictest0-21swapper/300:01:583
1546049994035,3cyclictest1597299-21cron21:49:590
1546049994034,4cyclictest1626494-21kworker/u8:0+flush-179:023:50:220
1546055993934,4cyclictest1618013-21turbostat22:59:563
154605499390,36cyclictest0-21swapper/222:35:002
1546052993934,4cyclictest1529981-21kworker/u8:0+flush-179:019:20:211
1546052993929,7cyclictest1213033-21systemd-journal22:41:391
1546049993931,6cyclictest1618238-21kworker/u8:2+flush-179:023:30:270
1546049993931,6cyclictest1576605-21apt-get20:45:110
1546054993835,2cyclictest0-21swapper/222:41:582
154605499380,36cyclictest0-21swapper/222:12:582
154605499380,35cyclictest0-21swapper/220:44:552
154605499380,35cyclictest0-21swapper/219:45:002
154605599370,1cyclictest0-21swapper/321:06:003
1546054993734,2cyclictest0-21swapper/220:57:592
1546054993734,2cyclictest0-21swapper/219:50:592
1546054993734,2cyclictest0-21swapper/219:19:552
1546054993734,2cyclictest0-21swapper/200:27:002
154605499370,35cyclictest0-21swapper/221:55:592
154605499370,35cyclictest0-21swapper/221:47:592
154605499370,35cyclictest0-21swapper/220:47:592
154605499370,35cyclictest0-21swapper/219:29:592
1546049993718,2cyclictest0-21swapper/019:25:170
154605599360,35cyclictest0-21swapper/322:25:593
154605599360,1cyclictest0-21swapper/321:39:593
1546054993633,2cyclictest0-21swapper/221:24:592
1546054993633,2cyclictest0-21swapper/220:52:592
154605499360,1cyclictest0-21swapper/223:49:592
154605499360,1cyclictest0-21swapper/223:17:582
154605499360,1cyclictest0-21swapper/222:25:012
1546052993631,3cyclictest1652361-21munin-run00:40:001
231999350,10rtkit-daemon2304-21lightdm-gtk-gre19:07:381
1546055993533,1cyclictest0-21swapper/321:19:563
1546055993533,1cyclictest0-21swapper/320:53:593
1546055993533,1cyclictest0-21swapper/319:27:593
154605499350,1cyclictest0-21swapper/222:10:002
1546052993531,3cyclictest1597282-21kworker/u8:1+i91522:08:591
1546054993431,2cyclictest0-21swapper/223:55:002
1546054993431,2cyclictest0-21swapper/222:04:002
1546055993331,1cyclictest0-21swapper/323:47:593
1546054993330,2cyclictest0-21swapper/223:06:002
1546054993330,2cyclictest0-21swapper/222:51:002
1546054993330,2cyclictest0-21swapper/222:19:002
1546054993330,2cyclictest0-21swapper/221:15:592
1546054993330,2cyclictest0-21swapper/221:00:592
1546054993330,2cyclictest0-21swapper/220:32:592
1546054993330,2cyclictest0-21swapper/220:18:592
1546054993330,2cyclictest0-21swapper/219:21:592
1546054993330,2cyclictest0-21swapper/200:22:592
1546049993326,5cyclictest1554025-21kworker/u8:3+events_unbound19:40:010
1546055993229,2cyclictest0-21swapper/321:54:593
1546054993230,1cyclictest0-21swapper/222:36:002
1546054993230,1cyclictest0-21swapper/220:00:002
1546054993229,2cyclictest0-21swapper/220:29:552
1546054993229,2cyclictest0-21swapper/220:24:552
1546055993129,1cyclictest0-21swapper/321:29:553
154605499310,29cyclictest0-21swapper/200:18:592
1546055993028,1cyclictest0-21swapper/320:59:593
1546055993028,1cyclictest0-21swapper/320:48:593
1546055993028,1cyclictest0-21swapper/320:34:563
1546054993029,1cyclictest0-21swapper/223:25:002
1546054993027,2cyclictest0-21swapper/223:04:002
1546054993027,2cyclictest0-21swapper/222:55:112
1546054993027,2cyclictest0-21swapper/200:05:592
154604999300,29cyclictest1579776-21apt-get20:55:130
4578291290,26phc2sys0-21swapper/323:50:143
1546055992927,1cyclictest431rcuc/323:20:023
1546055992927,1cyclictest0-21swapper/321:24:563
1546055992927,1cyclictest0-21swapper/321:02:593
1546055992926,2cyclictest0-21swapper/321:55:133
1546055992926,2cyclictest0-21swapper/321:45:133
154605599290,28cyclictest0-21swapper/323:25:013
154605599290,28cyclictest0-21swapper/323:20:013
154605599290,21cyclictest0-21swapper/321:40:143
1546054992927,1cyclictest0-21swapper/220:13:592
1546054992926,2cyclictest0-21swapper/223:39:002
1546054992926,2cyclictest0-21swapper/223:30:032
1546054992926,2cyclictest0-21swapper/221:40:142
1546054992926,2cyclictest0-21swapper/221:09:552
1546054992926,2cyclictest0-21swapper/220:35:132
1546054992926,2cyclictest0-21swapper/200:30:132
1546054992926,2cyclictest0-21swapper/200:02:592
154605499290,28cyclictest0-21swapper/223:25:122
154605499290,27cyclictest0-21swapper/223:55:132
154605499290,27cyclictest0-21swapper/222:45:132
154605499290,27cyclictest0-21swapper/221:50:112
154605499290,27cyclictest0-21swapper/221:30:142
154605499290,27cyclictest0-21swapper/219:45:142
1546055992826,1cyclictest0-21swapper/322:32:593
1546055992826,1cyclictest0-21swapper/322:17:593
1546055992826,1cyclictest0-21swapper/320:05:133
1546055992825,2cyclictest0-21swapper/323:35:163
154605599280,2cyclictest0-21swapper/320:00:123
154605599280,2cyclictest0-21swapper/320:00:123
154605599280,27cyclictest0-21swapper/320:15:133
154605599280,26cyclictest0-21swapper/319:30:133
154605599280,26cyclictest0-21swapper/300:05:133
1546054992826,1cyclictest0-21swapper/200:35:142
1546054992825,2cyclictest0-21swapper/223:12:582
1546054992825,2cyclictest0-21swapper/219:30:142
154605499280,27cyclictest0-21swapper/221:35:122
4577091270,7ptp4l61490irq/134-eno1-TxRx-020:40:003
1546055992725,1cyclictest0-21swapper/323:41:583
1546055992725,1cyclictest0-21swapper/323:14:553
1546055992725,1cyclictest0-21swapper/323:05:123
1546055992725,1cyclictest0-21swapper/320:20:133
1546055992725,1cyclictest0-21swapper/319:45:003
1546055992725,1cyclictest0-21swapper/319:37:593
154605599270,24cyclictest0-21swapper/319:11:593
154605599270,1cyclictest0-21swapper/322:35:143
1546054992724,2cyclictest0-21swapper/221:14:552
1546054992724,2cyclictest0-21swapper/220:04:002
1546054992724,2cyclictest0-21swapper/220:03:592
4577091260,5ptp4l441ktimers/322:54:553
1546055992624,1cyclictest0-21swapper/322:06:003
1546055992624,1cyclictest0-21swapper/319:59:003
154605599260,24cyclictest0-21swapper/322:40:133
1546054992623,2cyclictest0-21swapper/200:11:002
1546055992521,2cyclictest0-21swapper/300:15:583
154605599250,24cyclictest0-21swapper/323:04:553
154605599250,24cyclictest0-21swapper/320:26:593
154605599250,1cyclictest0-21swapper/321:10:133
154605599250,1cyclictest0-21swapper/320:42:593
154605599250,18cyclictest0-21swapper/300:24:003
4577091240,3ptp4l441ktimers/321:30:003
1546055992422,1cyclictest0-21swapper/322:02:593
1546055992422,1cyclictest0-21swapper/319:24:553
4577091230,3ptp4l441ktimers/322:24:553
4577091230,3ptp4l441ktimers/320:14:553
4577091230,3ptp4l441ktimers/319:55:013
4577091230,3ptp4l441ktimers/300:35:003
4577091230,3ptp4l441ktimers/300:29:593
4577091220,3ptp4l61490irq/134-eno1-TxRx-022:14:553
1546054992118,2cyclictest0-21swapper/219:10:142
1546049992016,3cyclictest1546058-21readlink19:10:030
4577091150,3ptp4l441ktimers/300:10:173
1546054991310,2cyclictest0-21swapper/223:44:562
15460549997,1cyclictest0-21swapper/220:09:592
15460549963,2cyclictest0-21swapper/222:27:142
15460549930,2cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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