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2026-06-01 - 23:47
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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 Mon Jun 01, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
238442299131107,22cyclictest2423166-21apt-get09:10:011
238442299129118,8cyclictest2442762-21latency_hist10:10:011
238442299115106,7cyclictest2428165-21kworker/u8:1+events_unbound10:00:011
238442299112103,6cyclictest2479374-21latency_hist12:05:011
23844199911098,10cyclictest1213033-21systemd-journal09:00:000
238442299109104,4cyclictest2431345-21kworker/u8:2+events_unbound09:40:241
23844229910892,14cyclictest2416774-21kworker/u8:0+flush-179:009:15:001
23844199910886,18cyclictest2486234-21kworker/u8:0+flush-179:012:30:140
238442299106100,4cyclictest2428165-21kworker/u8:1+flush-179:009:50:251
23844229910596,7cyclictest2390781-21latency_hist07:30:011
23844229910499,4cyclictest2488114-21kworker/u8:1+flush-179:012:30:241
23844199910397,4cyclictest2431345-21kworker/u8:2+flush-179:009:45:010
23844199910391,9cyclictest2392401-21http07:35:010
2384422999791,4cyclictest2415189-21kworker/u8:1+flush-179:008:45:251
2384419999787,7cyclictest2485998-21latency_hist12:25:010
2384422999685,4cyclictest2458644-21kworker/u8:1+events_unbound11:05:151
2384422999590,4cyclictest2428165-21kworker/u8:1+flush-179:009:35:241
2384419999569,10cyclictest2421819-21apt-get09:05:110
2384422999488,5cyclictest2383372-21kworker/u8:0+flush-179:007:10:261
2384422999487,5cyclictest2428222-21kworker/u8:3+flush-179:009:25:221
2384422999486,6cyclictest2395828-21kworker/u8:3+flush-179:007:45:201
2384419999385,6cyclictest2418370-21latency_hist08:55:020
2384422999287,4cyclictest2408634-21kworker/u8:2+flush-179:008:30:241
2384422999283,7cyclictest1213033-21systemd-journal08:55:011
2384422999186,4cyclictest2468263-21kworker/u8:3+flush-179:011:55:251
2384422999186,4cyclictest2445392-21kworker/u8:0+events_unbound10:25:241
2384419999184,5cyclictest2394265-21latency_hist07:40:010
2384422999083,6cyclictest2465007-21kworker/u8:2+flush-179:011:25:241
2384422999079,8cyclictest2428165-21kworker/u8:1+events_unbound10:15:171
2384422998983,5cyclictest2458644-21kworker/u8:1+flush-179:011:15:221
2384419998981,5cyclictest2428165-21kworker/u8:1+flush-179:009:35:220
2384422998881,5cyclictest2458644-21kworker/u8:1+flush-179:011:00:161
2384422998780,5cyclictest2439389-21kworker/u8:2+flush-179:010:00:131
2384422998779,6cyclictest2465007-21kworker/u8:2+events_unbound11:20:231
2384422998774,4cyclictest2428165-21kworker/u8:1+events_unbound10:15:001
2384419998781,4cyclictest2468263-21kworker/u8:3+flush-179:011:50:150
2384419998781,4cyclictest2413579-21kworker/u8:0+events_unbound08:40:010
2384419998778,6cyclictest2399016-21latency_hist07:55:010
2384422998681,4cyclictest2403844-21kworker/u8:3+events_unbound08:25:261
2384422998479,3cyclictest2449165-21kworker/u8:2+flush-179:010:50:151
2384422998478,4cyclictest2420013-21kworker/u8:2+events_unbound09:15:251
2384422998477,6cyclictest2428165-21kworker/u8:1+flush-179:010:25:001
2384419998373,6cyclictest2408634-21kworker/u8:2+flush-179:008:40:160
2384422998173,6cyclictest2468263-21kworker/u8:3+flush-179:011:45:201
2384422998172,4cyclictest2477744-21kworker/u8:0+events_unbound12:05:021
2384419998175,5cyclictest2445392-21kworker/u8:0+events_unbound11:15:010
2384419998174,5cyclictest2470067-21apt-get11:35:090
2384419998171,7cyclictest2436139-21latency_hist09:50:010
2384422997975,3cyclictest2397416-21kworker/u8:1+flush-179:008:15:251
2384422997974,4cyclictest2403844-21kworker/u8:3+flush-179:008:20:231
2384419997974,4cyclictest2486234-21kworker/u8:0+flush-179:012:25:220
2384419997972,5cyclictest2465007-21kworker/u8:2+events_unbound11:25:230
2384419997963,7cyclictest2428165-21kworker/u8:1+events_unbound10:20:000
2384422997874,3cyclictest2416774-21kworker/u8:0+events_unbound09:00:191
2384422997871,5cyclictest2401293-21kworker/u8:2+events_unbound08:10:191
2384422997866,10cyclictest1213033-21systemd-journal11:55:001
2384422997770,5cyclictest2483818-21kworker/u8:0+flush-179:012:15:221
2384422997769,6cyclictest2428165-21kworker/u8:1+events_unbound09:25:011
2384422997762,4cyclictest2408634-21kworker/u8:2+flush-179:008:40:221
2384419997772,3cyclictest2428165-21kworker/u8:1+flush-179:010:30:160
2384419997671,3cyclictest2445392-21kworker/u8:0+flush-179:010:35:240
2384419997670,4cyclictest2479350-21kworker/u8:2+events_unbound12:15:010
2384419997568,5cyclictest2449165-21kworker/u8:2+flush-179:010:55:170
2384419997568,4cyclictest2415189-21kworker/u8:1+flush-179:008:45:170
2384419997567,6cyclictest2403844-21kworker/u8:3+flush-179:008:20:250
2384419997563,10cyclictest2396101-21apt-get07:45:120
2384419997469,4cyclictest2397416-21kworker/u8:1+flush-179:008:05:250
2384422997368,4cyclictest2408634-21kworker/u8:2+flush-179:008:40:001
2384419997366,4cyclictest2445392-21kworker/u8:0+flush-179:010:40:220
2384419997364,7cyclictest2399252-21kworker/u8:0+flush-179:008:00:010
2384419997364,6cyclictest2403844-21kworker/u8:3+flush-179:008:25:220
2384422997266,4cyclictest2449165-21kworker/u8:2+flush-179:010:55:151
2384419997264,6cyclictest2403844-21kworker/u8:3+flush-179:008:20:000
2384422997166,3cyclictest2397416-21kworker/u8:1+flush-179:008:05:231
2384422996965,3cyclictest2479350-21kworker/u8:2+flush-179:012:20:241
2384422996959,3cyclictest2428222-21kworker/u8:3+events_unbound09:50:001
2384419996960,6cyclictest2426590-21latency_hist09:20:010
2384422996864,3cyclictest2399252-21kworker/u8:0+events_unbound08:00:241
2384422996863,4cyclictest2430762-21kworker/u8:0+flush-179:009:30:231
2384422996861,5cyclictest2416774-21kworker/u8:0+flush-179:008:55:211
2384419996862,5cyclictest2445392-21kworker/u8:0+flush-179:010:20:220
2384419996862,4cyclictest2383563-21kworker/u8:2+flush-179:007:20:160
2384422996762,4cyclictest2445392-21kworker/u8:0+flush-179:010:45:251
2384419996763,3cyclictest2383372-21kworker/u8:0+flush-179:007:40:260
2384419996763,3cyclictest2383372-21kworker/u8:0+flush-179:007:40:250
2384419996659,5cyclictest2416774-21kworker/u8:0+flush-179:009:00:210
2384422996560,4cyclictest2486234-21kworker/u8:0+events_unbound12:35:231
2384419996559,4cyclictest2465007-21kworker/u8:2+flush-179:011:20:170
2384419996557,6cyclictest2477744-21kworker/u8:0+flush-179:012:05:250
2384419996557,6cyclictest2400879-21apt-get08:00:110
2384422996456,6cyclictest2428165-21kworker/u8:1+flush-179:010:30:271
2384419996459,4cyclictest2488114-21kworker/u8:1+flush-179:012:36:040
2384419996459,4cyclictest2428222-21kworker/u8:3+events_unbound09:55:000
2384419996459,4cyclictest2428165-21kworker/u8:1+flush-179:009:55:180
2384419996456,6cyclictest2445392-21kworker/u8:0+events_unbound10:50:000
2384419996452,9cyclictest1213033-21systemd-journal07:15:010
2384422996361,2cyclictest0-21swapper/107:24:591
2384422996257,4cyclictest2445392-21kworker/u8:0+flush-179:010:35:211
2384422996257,4cyclictest2383563-21kworker/u8:2+events_unbound07:35:131
2384419996259,2cyclictest0-21swapper/011:34:000
2384419996255,4cyclictest2458644-21kworker/u8:1+events_unbound11:00:250
2384422996054,5cyclictest2468263-21kworker/u8:3+events_unbound11:30:581
2384422996052,6cyclictest2468263-21kworker/u8:3+events_unbound12:10:171
2384422995952,5cyclictest2383372-21kworker/u8:0+events_unbound07:15:221
2384419995948,5cyclictest2428165-21kworker/u8:1+events_unbound10:30:010
2384422995854,3cyclictest2392350-21kworker/u8:1+flush-179:007:40:161
2384422995854,3cyclictest2392350-21kworker/u8:1+flush-179:007:40:161
2384422995851,5cyclictest2473007-21latency_hist11:45:021
2384419995849,7cyclictest1213033-21systemd-journal09:32:220
2384422995751,4cyclictest2452579-21apt-get10:40:101
2384419995752,4cyclictest2408634-21kworker/u8:2+events_unbound08:30:150
2384419995749,6cyclictest2477776-21latency_hist12:00:010
2384419995748,7cyclictest2439846-21apt-get10:00:120
2384419995650,4cyclictest2445392-21kworker/u8:0+flush-179:011:05:210
2384422995548,5cyclictest714-21Xorg07:53:591
2384419995549,4cyclictest2468263-21kworker/u8:3+events_unbound11:45:150
2384429995451,2cyclictest0-21swapper/209:58:582
2384422995450,3cyclictest2445392-21kworker/u8:0+flush-179:011:35:151
2384419995450,3cyclictest2397416-21kworker/u8:1+flush-179:008:10:210
2384422995344,7cyclictest2400610-21latency_hist08:00:011
2384422995247,4cyclictest2383563-21kworker/u8:2+events_unbound07:32:451
2384419995247,4cyclictest2420013-21kworker/u8:2+flush-179:009:20:150
2384419995246,4cyclictest2483818-21kworker/u8:0+flush-179:012:15:250
2384419995245,5cyclictest2445392-21kworker/u8:0+flush-179:010:50:240
2384419995245,3cyclictest2416820-21kworker/u8:3+flush-179:009:10:220
2384419995146,4cyclictest2445392-21kworker/u8:0+flush-179:011:40:100
2384419995145,5cyclictest2383563-21kworker/u8:2+flush-179:007:25:240
2384422995046,3cyclictest2445392-21kworker/u8:0+flush-179:011:10:251
4577091490,13ptp4l441ktimers/307:10:003
2384419994743,3cyclictest2383372-21kworker/u8:0+events_unbound07:15:180
2384419994640,5cyclictest2468263-21kworker/u8:3+flush-179:012:02:250
238442999430,41cyclictest0-21swapper/211:40:592
2384422994136,4cyclictest2486234-21kworker/u8:0+events_unbound12:26:261
2384437994037,2cyclictest0-21swapper/310:18:593
2384437994034,5cyclictest0-21swapper/310:04:563
2384419994037,2cyclictest2439389-21kworker/u8:2+events_unbound10:05:170
2384437993933,5cyclictest2428195-21turbostat09:24:593
238443799390,4cyclictest2458673-21turbostat11:00:013
238442999380,35cyclictest0-21swapper/210:39:592
2384429993734,2cyclictest0-21swapper/211:59:552
2384429993734,2cyclictest0-21swapper/208:56:592
2384437993634,1cyclictest0-21swapper/312:35:593
2384437993634,1cyclictest0-21swapper/312:12:593
2384437993634,1cyclictest0-21swapper/309:29:593
238443799360,35cyclictest0-21swapper/311:49:553
238443799360,35cyclictest0-21swapper/309:47:003
2384429993633,2cyclictest0-21swapper/207:19:552
238442999360,1cyclictest0-21swapper/210:16:592
238442999360,1cyclictest0-21swapper/208:18:592
2384419993632,3cyclictest2439389-21kworker/u8:2+flush-179:010:10:100
2384437993533,1cyclictest0-21swapper/312:31:593
2384437993533,1cyclictest0-21swapper/310:13:583
2384437993533,1cyclictest0-21swapper/307:26:583
238443799350,2cyclictest0-21swapper/308:00:133
238443799350,1cyclictest0-21swapper/307:36:593
2384429993532,2cyclictest0-21swapper/212:11:592
2384429993532,2cyclictest0-21swapper/210:52:592
238442999350,1cyclictest0-21swapper/211:54:552
238442999350,1cyclictest0-21swapper/209:08:582
2384437993432,1cyclictest0-21swapper/308:20:003
2384437993431,2cyclictest0-21swapper/308:32:593
2384437993428,5cyclictest2466652-21turbostat11:25:003
2384429993431,2cyclictest0-21swapper/212:36:592
2384429993431,2cyclictest0-21swapper/210:22:592
2384429993431,2cyclictest0-21swapper/210:07:002
2384429993431,2cyclictest0-21swapper/207:53:592
2384437993331,1cyclictest0-21swapper/312:02:593
2384437993331,1cyclictest0-21swapper/311:06:593
2384437993328,4cyclictest2457088-21turbostat10:55:003
2384437993328,4cyclictest2442772-21turbostat10:10:013
238443799330,27cyclictest0-21swapper/307:45:133
238443799330,26cyclictest0-21swapper/309:10:133
2384429993330,2cyclictest0-21swapper/209:14:552
2384437993230,1cyclictest0-21swapper/307:50:593
2384429993230,1cyclictest0-21swapper/209:35:012
2384429993229,2cyclictest0-21swapper/212:09:552
238442999320,30cyclictest0-21swapper/209:04:002
2384437993129,1cyclictest0-21swapper/312:27:593
2384437993129,1cyclictest0-21swapper/311:28:593
238443799310,29cyclictest0-21swapper/308:20:133
2384429993127,2cyclictest0-21swapper/207:30:582
2384419993123,6cyclictest1213033-21systemd-journal11:15:230
2384437993028,1cyclictest0-21swapper/310:37:593
2384437993028,1cyclictest0-21swapper/308:25:593
238443799300,28cyclictest0-21swapper/308:35:133
2384429993027,2cyclictest0-21swapper/210:49:552
2384429993027,2cyclictest0-21swapper/207:35:032
2384429993027,2cyclictest0-21swapper/207:10:142
238441999300,29cyclictest714-21Xorg09:29:590
2384437992927,1cyclictest0-21swapper/310:29:583
2384437992927,1cyclictest0-21swapper/309:30:593
2384437992924,4cyclictest2463454-21turbostat11:15:003
2384437992924,4cyclictest2395855-21turbostat07:45:003
2384437992924,4cyclictest2395855-21turbostat07:44:593
238443799290,2cyclictest0-21swapper/307:30:133
238443799290,28cyclictest0-21swapper/312:20:143
238443799290,26cyclictest0-21swapper/310:30:143
2384429992927,1cyclictest0-21swapper/207:30:002
2384429992926,2cyclictest0-21swapper/210:14:562
2384429992926,2cyclictest0-21swapper/209:49:552
2384429992926,2cyclictest0-21swapper/209:24:562
2384429992926,2cyclictest0-21swapper/208:35:122
2384429992926,2cyclictest0-21swapper/208:05:162
238442999290,2cyclictest0-21swapper/212:20:132
238442999290,2cyclictest0-21swapper/207:57:592
238442999290,27cyclictest0-21swapper/212:25:142
238442999290,27cyclictest0-21swapper/210:40:122
238442999290,27cyclictest0-21swapper/210:30:132
238442999290,27cyclictest0-21swapper/208:45:152
238442999290,27cyclictest0-21swapper/208:00:112
238442999290,27cyclictest0-21swapper/207:45:132
2384437992823,4cyclictest2477806-21turbostat12:00:003
2384437992823,4cyclictest0-21swapper/309:55:143
2384437992821,5cyclictest0-21swapper/309:35:133
238443799280,26cyclictest0-21swapper/311:15:123
238443799280,26cyclictest0-21swapper/309:50:133
238443799280,26cyclictest0-21swapper/308:40:133
2384429992826,1cyclictest0-21swapper/210:00:012
2384429992825,2cyclictest0-21swapper/211:26:592
2384429992825,2cyclictest0-21swapper/209:50:142
2384429992825,2cyclictest0-21swapper/208:40:132
238442999280,2cyclictest0-21swapper/208:25:032
238442999280,26cyclictest0-21swapper/212:16:592
238442999280,26cyclictest0-21swapper/211:15:122
238442999280,26cyclictest0-21swapper/211:05:122
2384437992725,1cyclictest0-21swapper/308:14:553
2384437992722,4cyclictest2473020-21turbostat11:45:003
2384437992721,5cyclictest2400617-21turbostat07:59:593
238443799270,26cyclictest0-21swapper/308:47:593
238443799270,24cyclictest0-21swapper/311:00:593
4577091260,4ptp4l61490irq/134-eno1-TxRx-012:20:003
4577091260,4ptp4l441ktimers/310:20:013
4577091260,4ptp4l441ktimers/309:20:003
4577091260,4ptp4l441ktimers/307:25:003
2384437992623,2cyclictest0-21swapper/309:06:593
2384437992612,3cyclictest2432972-21turbostat09:44:553
2384429992623,2cyclictest0-21swapper/211:39:562
238442999260,24cyclictest0-21swapper/211:03:002
238442999260,24cyclictest0-21swapper/207:40:592
238442999260,24cyclictest0-21swapper/207:40:592
4577091250,4ptp4l61490irq/134-eno1-TxRx-011:54:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-010:50:003
4577091250,4ptp4l61490irq/134-eno1-TxRx-010:45:003
4577091250,4ptp4l61490irq/134-eno1-TxRx-007:20:013
4577091250,4ptp4l441ktimers/311:34:563
4577091250,4ptp4l441ktimers/309:05:003
4577091250,4ptp4l441ktimers/308:55:013
2384437992522,2cyclictest0-21swapper/307:14:593
238443799250,24cyclictest0-21swapper/311:36:593
2384429992522,2cyclictest0-21swapper/209:40:012
2384429992522,2cyclictest0-21swapper/209:25:582
2384429992522,2cyclictest0-21swapper/208:20:132
238442999250,2cyclictest0-21swapper/211:45:122
238442999250,2cyclictest0-21swapper/211:33:592
238442999250,2cyclictest0-21swapper/207:21:592
4577091240,4ptp4l441ktimers/312:09:563
4577091240,4ptp4l441ktimers/308:09:563
2384429992422,1cyclictest0-21swapper/212:35:002
2384429992421,2cyclictest0-21swapper/212:00:592
238442299230,20cyclictest2384485-21apt-key07:10:021
2384429992219,2cyclictest0-21swapper/208:32:002
2384429992219,2cyclictest0-21swapper/208:12:592
231999220,12rtkit-daemon495-21gpm07:05:320
2384437992014,1cyclictest0-21swapper/308:55:023
2384429992017,2cyclictest0-21swapper/211:10:122
2384429991815,2cyclictest0-21swapper/211:20:592
2384429991815,2cyclictest0-21swapper/209:40:582
2384429991714,2cyclictest351rcuc/210:26:272
2384429991714,2cyclictest351rcuc/208:50:142
2384429991513,1cyclictest0-21swapper/211:00:002
2384429991512,2cyclictest0-21swapper/209:17:002
23844299953,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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