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2026-01-05 - 10:40
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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 Mon Jan 05, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34522119910496,6cyclictest3532416-21kworker/u8:2+flush-179:000:00:010
34522139910095,4cyclictest3537246-21kworker/u8:1+events_unbound00:04:021
3452211999586,6cyclictest3482514-21latency_hist20:45:010
3452211999586,6cyclictest3482514-21latency_hist20:45:000
3452211999385,5cyclictest3461802-21latency_hist19:40:010
3452213999184,5cyclictest3471397-21kworker/u8:2+events_unbound20:20:001
3452213999079,10cyclictest3502169-21kworker/u8:0+flush-179:022:00:241
3452211998875,7cyclictest3476146-21latency_hist20:25:010
3452213998476,6cyclictest3548724-21kworker/u8:3+events_unbound00:30:001
3452213998075,4cyclictest3548671-21kworker/u8:2+flush-179:000:20:251
3452213997974,4cyclictest3465025-21kworker/u8:0+events_unbound19:50:291
3452213997974,4cyclictest3465025-21kworker/u8:0+events_unbound19:50:291
3452213997870,6cyclictest3485686-21latency_hist20:55:001
3452213997864,13cyclictest3532416-21kworker/u8:2+flush-179:000:00:011
3452213997773,3cyclictest3458662-21kworker/u8:3+flush-179:019:45:211
3452213997768,6cyclictest3497148-21latency_hist21:30:011
3452213997763,10cyclictest3451966-21latency_hist19:10:021
3452213997668,5cyclictest3471350-21kworker/u8:1+events_unbound20:10:221
3452213997667,7cyclictest3530817-21kworker/u8:0+events_unbound23:15:221
3452213997570,3cyclictest3537246-21kworker/u8:1+events_unbound00:05:141
3452213997469,4cyclictest3498716-21kworker/u8:3+flush-179:021:40:001
3452213997468,4cyclictest3487304-21kworker/u8:2+events_unbound21:00:201
3452213997369,3cyclictest3502169-21kworker/u8:0+flush-179:021:55:261
3452211997367,4cyclictest3465029-21kworker/u8:1+flush-179:019:55:000
3452211997367,4cyclictest3465029-21kworker/u8:1+flush-179:019:55:000
3452213997267,4cyclictest3502169-21kworker/u8:0+events_unbound22:45:271
3452213997162,4cyclictest3480961-21kworker/u8:1+events_unbound20:45:231
3452211997160,8cyclictest3469760-21kworker/u8:3+flush-179:020:09:590
3452213997065,4cyclictest3524505-21kworker/u8:3+flush-179:023:10:291
3452213997065,4cyclictest3518138-21kworker/u8:2+events_unbound22:40:271
3452213997062,5cyclictest3519697-21latency_hist22:40:011
3452213996964,4cyclictest3480961-21kworker/u8:1+events_unbound21:14:401
3452213996963,5cyclictest3455439-21kworker/u8:0+events_unbound19:20:221
3452211996958,8cyclictest3548671-21kworker/u8:2+flush-179:000:30:240
3452213996762,4cyclictest3548671-21kworker/u8:2+events_unbound00:10:221
3452213996661,4cyclictest3548671-21kworker/u8:2+flush-179:000:20:011
3452213996661,4cyclictest3532416-21kworker/u8:2+flush-179:023:20:261
3452213996652,5cyclictest3465029-21kworker/u8:1+events_unbound20:00:171
3452213996560,4cyclictest3502169-21kworker/u8:0+events_unbound21:45:241
3452213996554,4cyclictest3471397-21kworker/u8:2+events_unbound20:25:201
3452213996460,3cyclictest3532416-21kworker/u8:2+events_unbound23:35:141
3452211996456,6cyclictest3508302-21latency_hist22:05:000
3452213996359,3cyclictest3455439-21kworker/u8:0+flush-179:019:25:281
3452213996258,3cyclictest3516753-21kworker/u8:1+flush-179:022:30:141
3452213996254,7cyclictest3471397-21kworker/u8:2+flush-179:020:30:271
3452213996250,4cyclictest3508141-21kworker/u8:2+events_unbound22:10:181
3452211996256,4cyclictest3524505-21kworker/u8:3+flush-179:023:00:220
3452213996157,3cyclictest3524505-21kworker/u8:3+flush-179:023:30:241
3452213996157,3cyclictest3480961-21kworker/u8:1+events_unbound21:40:181
3452213996157,3cyclictest3452036-21kworker/u8:1+events_unbound19:10:141
3452213996156,4cyclictest3537246-21kworker/u8:1+flush-179:023:40:221
3452213996156,4cyclictest3487304-21kworker/u8:2+events_unbound21:05:221
3452213996147,6cyclictest3480961-21kworker/u8:1+events_unbound21:30:211
3452213996147,6cyclictest3480961-21kworker/u8:1+events_unbound21:30:201
3452211996149,9cyclictest266-21systemd-journal21:40:000
3452213996056,3cyclictest3471397-21kworker/u8:2+events_unbound20:20:271
3452213996055,4cyclictest3548671-21kworker/u8:2+flush-179:000:30:281
3452213996054,5cyclictest3502169-21kworker/u8:0+flush-179:022:05:151
3452213995953,5cyclictest3532416-21kworker/u8:2+flush-179:023:25:261
3452213995949,4cyclictest3524505-21kworker/u8:3+events_unbound23:00:261
3452211995954,4cyclictest3544075-21kworker/u8:0+flush-179:000:03:590
3452213995854,3cyclictest3495200-21kworker/u8:2+flush-179:021:25:011
3452211995852,4cyclictest3502169-21kworker/u8:0+flush-179:021:55:180
3452211995848,7cyclictest3509921-21kworker/u8:3+flush-179:022:30:030
3452213995749,6cyclictest3502169-21kworker/u8:0+events_unbound22:50:201
3452211995750,5cyclictest3527646-21kworker/u8:1+events_unbound23:05:230
3452211995749,6cyclictest3457637-21kworker/u8:2+flush-179:019:40:240
3452213995652,3cyclictest3480961-21kworker/u8:1+events_unbound21:50:241
3452213995652,3cyclictest3457637-21kworker/u8:2+flush-179:019:40:301
3452213995651,4cyclictest3522865-21kworker/u8:1+flush-179:022:55:191
3452213995650,5cyclictest3469760-21kworker/u8:3+events_unbound20:40:171
3452213995650,5cyclictest3469760-21kworker/u8:3+events_unbound20:40:171
3452211995650,5cyclictest3495200-21kworker/u8:2+flush-179:021:25:260
3452213995550,4cyclictest3556679-21kworker/u8:1+events_unbound00:35:221
3452211995550,3cyclictest3502169-21kworker/u8:0+flush-179:022:25:220
3452211995549,4cyclictest3521300-21latency_hist22:45:010
3452213995450,3cyclictest3502169-21kworker/u8:0+flush-179:022:15:241
3452213995449,4cyclictest3532416-21kworker/u8:2+flush-179:023:45:141
3452211995446,6cyclictest3532416-21kworker/u8:2+flush-179:023:35:220
3452211995446,6cyclictest3505105-21latency_hist21:55:020
3452213995349,3cyclictest3469760-21kworker/u8:3+flush-179:020:35:201
3452211995346,5cyclictest3471397-21kworker/u8:2+flush-179:020:30:180
3452211995343,8cyclictest3455458-21latency_hist19:20:010
3452213995248,3cyclictest3527646-21kworker/u8:1+events_unbound23:05:251
3452213995247,4cyclictest3502169-21kworker/u8:0+flush-179:022:25:281
3452211995243,6cyclictest3484548-21kworker/u8:0+flush-179:020:55:220
3452213995147,3cyclictest3487304-21kworker/u8:2+flush-179:020:59:561
231999500,47rtkit-daemon3480961-21kworker/u8:1+flush-179:021:45:140
4577091490,13ptp4l61490irq/134-eno1-TxRx-019:10:003
3452211994938,8cyclictest3484641-21diskstats20:50:160
3452213994844,3cyclictest3465025-21kworker/u8:0+flush-179:020:05:211
3452211994842,5cyclictest3455439-21kworker/u8:0+flush-179:019:25:260
3452211994840,6cyclictest3508141-21kworker/u8:2+flush-179:022:05:210
3452211994833,13cyclictest3480928-21cron20:40:010
345222099470,44cyclictest3511485-21turbostat22:15:013
3452213994742,4cyclictest3458662-21kworker/u8:3+flush-179:019:30:221
3452213994540,4cyclictest3449015-21kworker/u8:3+events_unbound19:15:281
3452211994539,4cyclictest3480961-21kworker/u8:1+events_unbound21:20:260
3452211994537,6cyclictest3537211-21latency_hist23:35:010
345221199451,3cyclictest714-21Xorg22:45:590
345222099440,4cyclictest3547098-21turbostat00:05:003
3452213994439,4cyclictest3537246-21kworker/u8:1+flush-179:023:50:291
345222099430,4cyclictest3455449-21turbostat19:20:003
3452213994339,3cyclictest3513047-21kworker/u8:1+flush-179:022:20:391
3452211994338,4cyclictest3508141-21kworker/u8:2+flush-179:022:10:240
3452211994338,3cyclictest266-21systemd-journal23:20:000
3452211994335,6cyclictest266-21systemd-journal00:18:390
3452220994236,4cyclictest3508315-21turbostat22:04:593
3452211994239,2cyclictest3502169-21kworker/u8:0+events_unbound22:15:180
3452211994237,3cyclictest3493953-21sendmail21:19:590
3452211994236,4cyclictest3487304-21kworker/u8:2+flush-179:021:05:220
3452211994235,5cyclictest3540407-21latency_hist23:45:010
3452220994134,5cyclictest3471371-21turbostat20:09:593
345222099410,39cyclictest3503524-21turbostat21:50:003
3452211994139,1cyclictest0-21swapper/023:47:590
3452211994137,2cyclictest1-21systemd23:50:250
3452211994135,4cyclictest3468189-21munin-plugin-st20:00:000
345221199411,38cyclictest3524481-21apt22:55:010
345221199410,40cyclictest0-21swapper/021:13:590
345222099401,4cyclictest3535630-21turbostat23:30:003
345222099400,39cyclictest3474571-21turbostat20:20:013
345222099400,39cyclictest3458637-21turbostat19:30:003
345222099400,38cyclictest3522893-21turbostat22:49:593
345222099400,38cyclictest3497159-21turbostat21:30:013
3452211994032,5cyclictest0-21swapper/019:49:590
3452211994031,7cyclictest3502169-21kworker/u8:0+flush-179:022:35:280
345221199400,38cyclictest3530857-21grep23:15:010
3452220993934,4cyclictest3545450-21turbostat00:00:003
3452220993934,4cyclictest3500362-21turbostat21:40:003
345222099390,38cyclictest3509896-21turbostat22:10:003
345222099390,38cyclictest3492118-21turbostat21:15:003
345222099390,37cyclictest3506708-21turbostat22:00:003
345222099390,37cyclictest3501949-21turbostat21:45:013
345222099390,37cyclictest0-21swapper/320:31:593
3452217993936,2cyclictest0-21swapper/222:05:002
345221799390,36cyclictest0-21swapper/221:25:002
345221799390,36cyclictest0-21swapper/220:02:592
345221799390,35cyclictest0-21swapper/222:16:592
3452213993934,4cyclictest3458665-21kworker/u8:4+flush-179:019:35:271
345222099380,4cyclictest3521313-21turbostat22:45:003
345222099380,37cyclictest3543591-21turbostat23:55:003
345222099380,36cyclictest0-21swapper/323:19:593
345222099380,30cyclictest0-21swapper/320:13:593
345222099380,1cyclictest0-21swapper/320:21:593
3452217993834,2cyclictest0-21swapper/222:46:592
3452217993834,2cyclictest0-21swapper/219:59:552
345221799380,35cyclictest0-21swapper/223:10:002
345221799380,35cyclictest0-21swapper/221:00:012
345221799380,35cyclictest0-21swapper/220:31:582
345221799380,35cyclictest0-21swapper/219:49:552
345221799380,35cyclictest0-21swapper/200:30:002
345221799380,2cyclictest0-21swapper/223:10:582
345221799380,2cyclictest0-21swapper/220:23:002
3452211993833,4cyclictest3513047-21kworker/u8:1+events_unbound22:20:240
3452211993832,4cyclictest3465029-21kworker/u8:1+events_unbound20:00:220
345221199381,36cyclictest211irq_work/020:16:590
345221199380,37cyclictest0-21swapper/000:26:590
345222099370,36cyclictest0-21swapper/322:17:003
345222099370,36cyclictest0-21swapper/320:02:593
345222099370,36cyclictest0-21swapper/319:49:553
345221799370,34cyclictest0-21swapper/200:35:002
345221799370,2cyclictest0-21swapper/223:20:002
345221799370,2cyclictest0-21swapper/220:13:582
3452213993734,2cyclictest714-21Xorg21:17:591
3452211993734,2cyclictest0-21swapper/023:21:590
3452211993733,3cyclictest3471397-21kworker/u8:2+flush-179:020:25:150
3452211993732,4cyclictest3544075-21kworker/u8:0+flush-179:000:10:010
3452220993634,1cyclictest0-21swapper/319:59:553
3452220993633,2cyclictest0-21swapper/321:10:003
3452220993629,5cyclictest3527678-21turbostat23:05:003
3452217993634,1cyclictest0-21swapper/221:09:592
3452217993634,1cyclictest0-21swapper/220:10:002
3452217993632,2cyclictest0-21swapper/221:33:002
3452217993632,2cyclictest0-21swapper/221:32:592
345221799360,1cyclictest0-21swapper/220:55:002
3452220993532,2cyclictest3498755-21sleep21:34:593
3452220993532,2cyclictest3498755-21sleep21:34:593
345222099350,1cyclictest0-21swapper/323:10:593
3452217993533,1cyclictest0-21swapper/200:00:002
3452217993531,2cyclictest0-21swapper/223:28:592
3452217993531,2cyclictest0-21swapper/221:40:592
3452217993530,3cyclictest0-21swapper/223:22:582
345221799350,1cyclictest0-21swapper/221:59:592
3452211993532,2cyclictest0-21swapper/023:25:590
3452211993527,6cyclictest3548671-21kworker/u8:2+flush-179:000:20:140
3452211993526,7cyclictest3460219-21idleruntime-cro19:35:000
345222099340,2cyclictest0-21swapper/320:41:593
345222099340,2cyclictest0-21swapper/320:41:583
3452217993431,2cyclictest0-21swapper/222:08:002
3452217993431,2cyclictest0-21swapper/200:39:552
345221799340,31cyclictest0-21swapper/222:59:002
3452211993431,2cyclictest714-21Xorg21:30:580
3452211993431,2cyclictest714-21Xorg21:30:580
3452211993430,3cyclictest3488972-21systemd-run21:05:010
3452211993428,4cyclictest3453840-21latency_hist19:15:010
3452220993331,1cyclictest0-21swapper/300:32:593
3452220993330,2cyclictest0-21swapper/323:09:583
3452217993330,2cyclictest0-21swapper/200:24:552
3452213993328,4cyclictest3465025-21kworker/u8:0+events_unbound19:55:231
3452211993330,2cyclictest0-21swapper/022:55:580
3452220993230,1cyclictest0-21swapper/323:22:583
3452220993230,1cyclictest0-21swapper/300:39:553
345221799325,2cyclictest0-21swapper/200:11:592
3452217993229,2cyclictest0-21swapper/223:05:002
345221199321,29cyclictest0-21swapper/019:20:140
3452220993128,2cyclictest0-21swapper/300:22:593
345222099310,30cyclictest0-21swapper/322:58:593
345222099310,29cyclictest0-21swapper/321:15:133
3452217993128,2cyclictest0-21swapper/221:51:592
3452217993128,2cyclictest0-21swapper/221:28:592
345221799310,2cyclictest0-21swapper/221:15:142
3452211993123,5cyclictest0-21swapper/000:12:590
3452220993028,1cyclictest0-21swapper/321:51:593
345222099300,28cyclictest0-21swapper/320:25:133
345222099300,28cyclictest0-21swapper/319:20:143
3452217993027,2cyclictest0-21swapper/223:44:592
345221799300,2cyclictest0-21swapper/222:20:142
345221799300,2cyclictest0-21swapper/219:20:142
345221799300,28cyclictest0-21swapper/220:15:172
345221799300,28cyclictest0-21swapper/219:40:142
345221799300,28cyclictest0-21swapper/219:10:122
3452220992927,1cyclictest0-21swapper/323:44:593
3452220992926,2cyclictest0-21swapper/319:40:153
3452220992926,2cyclictest0-21swapper/319:10:123
3452220992926,2cyclictest0-21swapper/300:05:133
345222099290,2cyclictest0-21swapper/322:20:133
345222099290,28cyclictest0-21swapper/322:53:003
345222099290,27cyclictest0-21swapper/320:50:143
3452217992926,2cyclictest0-21swapper/200:05:132
345221799290,2cyclictest0-21swapper/222:10:152
345221799290,27cyclictest0-21swapper/222:52:592
345221799290,27cyclictest0-21swapper/222:25:142
345221799290,27cyclictest0-21swapper/200:00:592
345221799290,21cyclictest0-21swapper/220:25:142
3452211992924,4cyclictest482-21avahi-daemon21:40:240
3452211992923,4cyclictest266-21systemd-journal20:14:390
3452211992915,10cyclictest3452218-21readlink19:10:020
4577091280,7ptp4l441ktimers/319:55:003
4577091280,7ptp4l441ktimers/319:55:003
345222099280,2cyclictest0-21swapper/319:37:593
345222099280,27cyclictest0-21swapper/322:25:143
345222099280,26cyclictest0-21swapper/321:20:153
345222099280,1cyclictest0-21swapper/300:10:123
3452217992824,2cyclictest0-21swapper/222:31:592
345221799280,21cyclictest0-21swapper/219:50:592
345221799280,21cyclictest0-21swapper/219:50:592
3452211992823,3cyclictest3484106-21munin-run20:50:000
4577091270,6ptp4l61490irq/134-eno1-TxRx-019:35:013
4577091270,6ptp4l61490irq/134-eno1-TxRx-000:30:003
4577091270,5ptp4l441ktimers/323:50:003
345222099270,2cyclictest0-21swapper/320:56:193
345222099270,26cyclictest0-21swapper/322:32:003
3452217992724,2cyclictest0-21swapper/221:36:592
3452217992724,2cyclictest0-21swapper/221:10:142
3452217992723,2cyclictest0-21swapper/223:46:592
3452217992723,2cyclictest0-21swapper/222:43:372
345221799270,2cyclictest0-21swapper/223:30:302
345221799270,2cyclictest0-21swapper/220:41:592
345221799270,2cyclictest0-21swapper/220:41:592
345221799270,25cyclictest0-21swapper/219:30:252
345221799270,19cyclictest0-21swapper/221:46:572
3452211992723,2cyclictest3556679-21kworker/u8:1+events_unbound00:35:180
4577091260,6ptp4l441ktimers/320:39:563
3452220992623,2cyclictest0-21swapper/323:37:433
3452220992623,2cyclictest0-21swapper/321:00:373
345222099260,2cyclictest0-21swapper/320:49:593
345222099260,25cyclictest0-21swapper/300:16:593
3452217992623,2cyclictest0-21swapper/223:37:442
3452217992623,2cyclictest0-21swapper/221:00:362
3452217992623,2cyclictest0-21swapper/220:46:582
3452217992623,2cyclictest0-21swapper/220:38:402
3452217992623,2cyclictest0-21swapper/200:15:082
345221799260,2cyclictest0-21swapper/219:37:592
345221799260,24cyclictest0-21swapper/223:52:052
345221799260,24cyclictest0-21swapper/219:25:192
345221799260,24cyclictest0-21swapper/219:15:152
4577091250,4ptp4l441ktimers/322:40:023
345222099250,2cyclictest0-21swapper/323:30:313
3452217992219,2cyclictest0-21swapper/222:37:572
34522179930,2cyclictest0-21swapper/219:10:022
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