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2026-07-28 - 05:42
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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 Tue Jul 28, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40120699139123,12cyclictest510-21rs:main0
40120699125111,11cyclictest1213033-21systemd-journal00:24:590
40120699113106,4cyclictest408471-21kworker/u8:1+flush-179:020:00:230
40120899112105,5cyclictest444582-21kworker/u8:1+flush-179:021:25:001
40120899111101,7cyclictest1213033-21systemd-journal00:04:001
40120699111103,5cyclictest481961-21latency_hist23:20:010
4012089910899,6cyclictest483195-21apt-get23:20:231
4012089910598,5cyclictest410913-21apt-get19:40:121
4012089910490,12cyclictest434489-21kworker/u8:1+events_unbound20:55:011
4012089910393,7cyclictest434489-21kworker/u8:1+flush-179:021:10:151
4012089910393,6cyclictest459401-21kworker/u8:2+flush-179:022:40:221
4012089910293,6cyclictest426798-21kworker/u8:0+flush-179:020:30:211
4012069910294,6cyclictest463946-21latency_hist22:25:010
401208999990,6cyclictest467672-21kworker/u8:1+flush-179:022:55:171
401208999988,9cyclictest428403-21apt-get20:35:121
401208999988,7cyclictest475565-21kworker/u8:0+flush-179:023:15:211
401208999886,9cyclictest485177-21kworker/u8:1+flush-179:023:30:171
401208999886,10cyclictest1213033-21systemd-journal23:15:001
401208999590,3cyclictest401121-21kworker/u8:2+flush-179:019:10:161
401208999587,6cyclictest475565-21kworker/u8:0+flush-179:023:35:241
401208999586,7cyclictest498244-21apt-get00:10:131
401206999478,13cyclictest499553-21kworker/u8:0+flush-179:000:15:240
401206999478,13cyclictest499553-21kworker/u8:0+flush-179:000:15:240
401208999383,7cyclictest483336-21kworker/u8:2+flush-179:023:25:241
401206999384,6cyclictest426798-21kworker/u8:0+flush-179:020:35:220
401206999383,7cyclictest475565-21kworker/u8:0+flush-179:023:10:230
401208999184,4cyclictest399296-21kworker/u8:3+flush-179:019:15:481
401208999182,7cyclictest459401-21kworker/u8:2+flush-179:022:15:171
401208999182,7cyclictest459401-21kworker/u8:2+flush-179:022:15:171
401208999085,4cyclictest459401-21kworker/u8:2+events_unbound22:40:011
401208999084,5cyclictest456652-21kworker/u8:0+flush-179:022:00:231
401206998981,5cyclictest412242-21latency_hist19:45:020
401206998979,7cyclictest416714-21kworker/u8:2+flush-179:021:15:240
401206998979,7cyclictest416714-21kworker/u8:2+flush-179:020:05:220
401208998780,4cyclictest399296-21kworker/u8:3+flush-179:019:25:211
401206998782,4cyclictest429804-21kworker/u8:3+flush-179:020:55:280
401206998781,4cyclictest459401-21kworker/u8:2+flush-179:022:35:250
401206998776,8cyclictest505949-21latency_hist00:35:020
401208998680,4cyclictest446480-21kworker/u8:3+flush-179:021:55:181
401208998677,7cyclictest408471-21kworker/u8:1+flush-179:020:05:001
401208998574,8cyclictest459401-21kworker/u8:2+flush-179:022:30:231
401206998579,4cyclictest443258-21apt-get21:20:110
401206998477,5cyclictest450332-21kworker/u8:1+flush-179:022:00:150
401208998376,5cyclictest475565-21kworker/u8:0+flush-179:023:55:241
401206998373,7cyclictest408471-21kworker/u8:1+flush-179:019:35:240
401208998275,5cyclictest467672-21kworker/u8:1+flush-179:023:05:221
401206998276,4cyclictest475565-21kworker/u8:0+flush-179:023:20:230
401206998272,8cyclictest415667-21apt-get19:55:130
401208998174,5cyclictest420446-21apt-get20:10:131
401208998173,5cyclictest450332-21kworker/u8:1+events_unbound21:55:011
401206998172,7cyclictest472156-21latency_hist22:50:000
401206998170,8cyclictest408471-21kworker/u8:1+events_unbound19:50:210
401206998170,8cyclictest408471-21kworker/u8:1+events_unbound19:50:200
401208998073,5cyclictest421237-21kworker/u8:0+flush-179:020:20:181
401208998062,17cyclictest467672-21kworker/u8:1+events_unbound22:50:161
401206998073,5cyclictest434489-21kworker/u8:1+flush-179:021:00:230
401206998072,6cyclictest1213033-21systemd-journal22:45:010
401208997973,4cyclictest475565-21kworker/u8:0+flush-179:023:50:241
401206997973,4cyclictest494177-21kworker/u8:1+flush-179:000:10:220
401206997859,17cyclictest451215-21latency_hist21:45:010
401208997769,6cyclictest424957-21kworker/u8:1+flush-179:020:30:001
401206997669,6cyclictest485177-21kworker/u8:1+events_unbound23:45:260
401206997665,9cyclictest494907-21kworker/u8:2+events_unbound00:05:210
401208997569,4cyclictest475565-21kworker/u8:0+flush-179:023:01:011
401208997569,4cyclictest434489-21kworker/u8:1+events_unbound21:00:271
401208997567,6cyclictest465532-21latency_hist22:30:001
401208997566,5cyclictest404324-21kworker/u8:0+flush-179:019:20:211
401208997467,5cyclictest418642-21kworker/u8:3+flush-179:020:05:151
401208997466,6cyclictest399296-21kworker/u8:3+flush-179:019:55:181
401206997469,4cyclictest399296-21kworker/u8:3+flush-179:019:25:250
401206997466,6cyclictest434489-21kworker/u8:1+events_unbound21:05:260
401206997466,5cyclictest486821-21true23:35:010
401206997465,8cyclictest499553-21kworker/u8:0+events_unbound00:25:210
401206997368,3cyclictest421237-21kworker/u8:0+flush-179:020:20:200
401206997366,5cyclictest475565-21kworker/u8:0+flush-179:023:05:170
401206997365,6cyclictest446480-21kworker/u8:3+flush-179:021:35:000
401206997362,7cyclictest459401-21kworker/u8:2+flush-179:022:25:230
401208997259,11cyclictest1213033-21systemd-journal00:30:001
401206997266,4cyclictest467672-21kworker/u8:1+events_unbound23:00:240
401206997265,5cyclictest416714-21kworker/u8:2+flush-179:020:10:230
401208997165,4cyclictest446480-21kworker/u8:3+events_unbound21:30:011
401208997165,4cyclictest446480-21kworker/u8:3+events_unbound21:30:011
401206997165,4cyclictest475565-21kworker/u8:0+events_unbound23:50:240
401206997066,3cyclictest450332-21kworker/u8:1+flush-179:021:45:200
401206997063,5cyclictest426817-21apt-get20:30:120
401206997063,5cyclictest399296-21kworker/u8:3+flush-179:019:15:520
401206997062,5cyclictest475565-21kworker/u8:0+flush-179:023:35:260
401206996962,5cyclictest1213033-21systemd-journal19:24:560
40121199680,66cyclictest0-21swapper/221:36:002
401208996856,10cyclictest1213033-21systemd-journal22:50:001
401206996861,5cyclictest429804-21kworker/u8:3+events_unbound20:50:000
401206996757,5cyclictest446480-21kworker/u8:3+events_unbound21:35:160
401208996659,6cyclictest446480-21kworker/u8:3+events_unbound21:40:001
401206996660,4cyclictest416714-21kworker/u8:2+flush-179:020:25:180
401208996558,5cyclictest460750-21latency_hist22:15:011
401206996558,4cyclictest459401-21kworker/u8:2+events_unbound22:15:170
401206996558,4cyclictest459401-21kworker/u8:2+events_unbound22:15:170
401206996459,4cyclictest494907-21kworker/u8:2+flush-179:000:35:160
401206996457,4cyclictest494907-21kworker/u8:2+flush-179:000:00:270
401206996455,7cyclictest421237-21kworker/u8:0+flush-179:020:20:000
401208996357,4cyclictest475565-21kworker/u8:0+flush-179:023:40:221
401208996352,9cyclictest458121-21diskstats22:05:161
401206996358,4cyclictest483336-21kworker/u8:2+flush-179:023:25:180
401206996354,7cyclictest459401-21kworker/u8:2+flush-179:022:30:160
401208996256,4cyclictest416714-21kworker/u8:2+events_unbound21:15:181
401206996155,5cyclictest444582-21kworker/u8:1+flush-179:021:25:240
401206996155,5cyclictest444582-21kworker/u8:1+flush-179:021:25:240
401206996154,5cyclictest450332-21kworker/u8:1+flush-179:022:05:200
401212996053,5cyclictest460760-21turbostat22:15:003
40121299600,1cyclictest0-21swapper/319:31:593
401208996053,5cyclictest494907-21kworker/u8:2+flush-179:000:30:221
401206996055,4cyclictest446480-21kworker/u8:3+flush-179:021:55:250
401208995953,4cyclictest494177-21kworker/u8:1+flush-179:000:05:241
401208995952,4cyclictest429804-21kworker/u8:3+flush-179:020:55:221
401208995951,6cyclictest399296-21kworker/u8:3+flush-179:019:35:001
401208995943,15cyclictest1213033-21systemd-journal00:15:511
401208995943,15cyclictest1213033-21systemd-journal00:15:511
401206995950,7cyclictest441135-21latency_hist21:15:010
401208995853,4cyclictest416714-21kworker/u8:2+flush-179:021:05:211
401206995853,4cyclictest394741-21kworker/u8:1+events_unbound19:10:250
401206995852,4cyclictest459401-21kworker/u8:2+flush-179:022:10:160
401211995753,2cyclictest0-21swapper/221:55:592
401208995754,2cyclictest446480-21kworker/u8:3+events_unbound21:30:261
401206995754,2cyclictest0-21swapper/023:44:590
401206995751,4cyclictest446480-21kworker/u8:3+flush-179:021:50:210
401206995751,4cyclictest404324-21kworker/u8:0+events_unbound19:30:140
401208995651,4cyclictest499553-21kworker/u8:0+flush-179:000:23:471
401208995650,4cyclictest450332-21kworker/u8:1+events_unbound21:45:191
401208995650,4cyclictest426798-21kworker/u8:0+flush-179:020:45:171
401206995650,4cyclictest399296-21kworker/u8:3+flush-179:019:45:130
401208995549,4cyclictest423379-21latency_hist20:20:001
401208995547,5cyclictest485177-21kworker/u8:1+flush-179:023:45:221
401208995348,4cyclictest506644-21kworker/u8:1+events_unbound00:35:191
401208995347,4cyclictest399296-21kworker/u8:3+flush-179:019:45:151
401212995250,1cyclictest0-21swapper/321:55:593
401206995247,4cyclictest467672-21kworker/u8:1+flush-179:022:50:250
401206995247,4cyclictest429804-21kworker/u8:3+flush-179:020:50:240
4577091510,13ptp4l441ktimers/319:10:003
401208995045,4cyclictest408471-21kworker/u8:1+flush-179:019:35:271
401208995043,5cyclictest462614-21apt-get22:20:111
401208994742,4cyclictest441630-21kworker/u8:0+flush-179:021:40:151
401206994742,4cyclictest426798-21kworker/u8:0+flush-179:020:40:160
40120699450,42cyclictest714-21Xorg22:57:590
401212994337,5cyclictest412256-21turbostat19:45:013
40121299410,40cyclictest0-21swapper/322:48:583
40121299400,38cyclictest505965-21turbostat00:39:553
40121299390,38cyclictest486802-21turbostat23:35:013
401208993934,4cyclictest426798-21kworker/u8:0+flush-179:020:40:141
401208993934,4cyclictest399296-21kworker/u8:3+flush-179:019:50:221
401208993934,4cyclictest399296-21kworker/u8:3+flush-179:019:50:211
401212993836,1cyclictest0-21swapper/300:11:583
401211993835,2cyclictest0-21swapper/221:17:592
401211993834,2cyclictest0-21swapper/222:02:592
401211993834,2cyclictest0-21swapper/219:22:592
40121199380,36cyclictest0-21swapper/221:03:592
40121199380,36cyclictest0-21swapper/220:20:582
40121299370,35cyclictest0-21swapper/319:55:593
40121299370,1cyclictest0-21swapper/319:24:593
401211993734,2cyclictest0-21swapper/220:30:592
401211993733,2cyclictest0-21swapper/221:27:592
401211993733,2cyclictest0-21swapper/221:27:592
40121199370,2cyclictest0-21swapper/219:55:592
40121199370,2cyclictest0-21swapper/219:25:592
40121199370,2cyclictest0-21swapper/200:00:582
401212993634,1cyclictest0-21swapper/320:20:583
40121299360,1cyclictest0-21swapper/321:14:593
40121299360,1cyclictest0-21swapper/320:07:593
40121299360,1cyclictest0-21swapper/300:20:593
40121299360,1cyclictest0-21swapper/300:04:563
40121199360,1cyclictest0-21swapper/223:42:582
4577091350,3ptp4l441ktimers/323:35:143
401212993533,1cyclictest0-21swapper/323:24:543
401212993533,1cyclictest0-21swapper/323:15:593
401212993532,2cyclictest0-21swapper/322:31:583
401212993532,2cyclictest0-21swapper/321:17:593
401211993532,2cyclictest0-21swapper/221:49:592
401212993331,1cyclictest0-21swapper/322:02:593
401212993331,1cyclictest0-21swapper/320:30:593
401211993230,1cyclictest0-21swapper/221:55:002
401211993229,2cyclictest0-21swapper/220:38:592
401211993228,2cyclictest0-21swapper/223:30:592
401211993228,2cyclictest0-21swapper/221:33:592
401211993228,2cyclictest0-21swapper/219:43:592
401212993129,1cyclictest0-21swapper/321:49:583
401212993129,1cyclictest0-21swapper/321:27:593
401212993129,1cyclictest0-21swapper/321:27:593
401212993128,2cyclictest454392-21turbostat21:55:013
401211993128,2cyclictest0-21swapper/221:13:592
40121199310,2cyclictest0-21swapper/200:39:562
40121199310,29cyclictest0-21swapper/220:18:592
4577091300,7ptp4l61490irq/134-eno1-TxRx-019:15:013
4577091300,7ptp4l441ktimers/319:40:013
4577091300,6ptp4l441ktimers/320:45:003
401212993024,5cyclictest449613-21turbostat21:40:003
40121299300,23cyclictest0-21swapper/320:38:593
401211993028,1cyclictest0-21swapper/223:20:002
401211993027,2cyclictest0-21swapper/222:09:592
401211993026,2cyclictest0-21swapper/223:04:552
401211993026,2cyclictest0-21swapper/219:52:592
401211993026,2cyclictest0-21swapper/219:52:592
40121199300,2cyclictest0-21swapper/222:50:122
40121199300,2cyclictest0-21swapper/220:25:142
40121199300,23cyclictest0-21swapper/219:15:452
45782912925,2phc2sys0-21swapper/322:55:153
4577091290,6ptp4l441ktimers/322:20:013
4577091290,6ptp4l441ktimers/322:20:013
4577091290,5ptp4l441ktimers/322:10:013
401212992927,1cyclictest0-21swapper/319:25:133
401212992926,2cyclictest0-21swapper/322:50:013
401212992926,2cyclictest0-21swapper/322:40:143
40121299290,29cyclictest0-21swapper/319:15:443
40121299290,28cyclictest0-21swapper/320:25:153
40121299290,27cyclictest0-21swapper/323:55:143
40121299290,27cyclictest0-21swapper/322:20:123
40121299290,27cyclictest0-21swapper/320:55:143
40121299290,22cyclictest0-21swapper/321:30:133
401211992926,2cyclictest0-21swapper/223:35:152
401211992926,2cyclictest0-21swapper/222:45:132
401211992926,2cyclictest0-21swapper/200:05:152
401211992925,2cyclictest0-21swapper/222:40:142
401211992925,2cyclictest0-21swapper/219:38:592
401211992925,2cyclictest0-21swapper/200:26:582
40121199290,27cyclictest0-21swapper/223:55:142
40121199290,27cyclictest0-21swapper/223:20:242
40121199290,27cyclictest0-21swapper/220:55:142
40121199290,27cyclictest0-21swapper/220:50:132
40121199290,27cyclictest0-21swapper/220:14:592
40121199290,27cyclictest0-21swapper/219:31:002
40121199290,27cyclictest0-21swapper/200:10:132
4577091280,7ptp4l61490irq/134-eno1-TxRx-023:45:003
4577091280,5ptp4l61490irq/134-eno1-TxRx-023:55:003
4577091280,5ptp4l441ktimers/319:55:023
4577091280,5ptp4l441ktimers/319:55:013
4577091280,4ptp4l441ktimers/322:40:013
401212992826,1cyclictest0-21swapper/320:15:003
40121299280,2cyclictest0-21swapper/320:50:133
401211992825,2cyclictest0-21swapper/222:20:122
401211992825,2cyclictest0-21swapper/220:48:592
401211992824,2cyclictest0-21swapper/223:49:542
401211992824,2cyclictest0-21swapper/220:04:552
40121199280,26cyclictest0-21swapper/222:55:592
4577091270,5ptp4l441ktimers/320:05:013
4577091270,4ptp4l441ktimers/300:10:003
40121299270,26cyclictest0-21swapper/323:29:593
40121299270,26cyclictest0-21swapper/323:00:583
401211992725,1cyclictest0-21swapper/220:44:592
401211992724,2cyclictest0-21swapper/222:35:132
401211992723,2cyclictest0-21swapper/219:14:002
40121199270,2cyclictest0-21swapper/200:19:002
40121199270,2cyclictest0-21swapper/200:18:592
40121199270,25cyclictest0-21swapper/221:41:592
40121199270,25cyclictest0-21swapper/221:21:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-021:10:003
4577091260,5ptp4l441ktimers/322:30:003
4577091260,4ptp4l441ktimers/320:50:003
401212992624,1cyclictest0-21swapper/321:21:593
401212992623,2cyclictest431rcuc/323:49:553
40121299260,25cyclictest0-21swapper/300:25:593
40121299260,24cyclictest0-21swapper/321:42:593
401211992623,2cyclictest0-21swapper/223:25:582
401211992622,2cyclictest0-21swapper/223:10:142
4577091250,3ptp4l61490irq/134-eno1-TxRx-000:35:013
4577091250,3ptp4l441ktimers/323:14:563
4577091250,3ptp4l441ktimers/323:09:553
4577091250,3ptp4l441ktimers/300:19:573
4577091250,3ptp4l441ktimers/300:19:573
40121299250,1cyclictest0-21swapper/319:45:133
401211992522,2cyclictest0-21swapper/222:14:592
401211992421,2cyclictest0-21swapper/222:33:592
401211992421,2cyclictest0-21swapper/200:32:592
401211992420,2cyclictest0-21swapper/223:51:002
4577091230,2ptp4l441ktimers/320:19:563
401211992320,2cyclictest0-21swapper/219:49:592
4577091220,2ptp4l441ktimers/321:04:573
401211992219,2cyclictest0-21swapper/200:20:142
401211992218,2cyclictest0-21swapper/220:09:552
40120899211,18cyclictest401308-21latency_hist19:10:011
231999190,10rtkit-daemon2304-21lightdm-gtk-gre19:07:440
401211991714,2cyclictest0-21swapper/222:19:562
401211991714,2cyclictest0-21swapper/222:19:562
401211991411,2cyclictest0-21swapper/223:08:002
401211991310,2cyclictest0-21swapper/222:26:592
40121199129,2cyclictest0-21swapper/221:07:002
4012119940,3cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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