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2026-06-11 - 18:25
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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 Thu Jun 11, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29951599151142,8cyclictest327048-21kworker/u8:4+events_unbound08:45:001
29951599139132,5cyclictest347800-21kworker/u8:3+events_unbound09:49:211
29951599139132,5cyclictest347800-21kworker/u8:3+events_unbound09:49:211
29951599122104,6cyclictest383572-21kworker/u8:0+events_unbound12:20:251
29951599116111,4cyclictest372230-21kworker/u8:2+events_unbound11:05:011
29951599114104,7cyclictest362371-21kworker/u8:0+events_unbound10:30:181
29951599114103,7cyclictest362389-21latency_hist10:25:011
29951599112106,5cyclictest383572-21kworker/u8:0+flush-179:012:35:241
29951599111105,5cyclictest380463-21kworker/u8:3+events_unbound11:25:011
2995159910897,8cyclictest510-21rs:main1
2995139910797,8cyclictest380418-21latency_hist11:20:010
2995159910692,6cyclictest334488-21kworker/u8:0+events_unbound09:00:251
29951599106101,3cyclictest334488-21kworker/u8:0+events_unbound09:30:221
29951599106100,4cyclictest394755-21kworker/u8:3+events_unbound12:05:241
2995159910596,6cyclictest380463-21kworker/u8:3+events_unbound11:40:211
2995159910596,5cyclictest383572-21kworker/u8:0+events_unbound12:30:131
2995159910587,6cyclictest283756-21kworker/u8:3+events_unbound07:20:181
2995159910395,6cyclictest334488-21kworker/u8:0+events_unbound09:40:191
2995159910297,3cyclictest331821-21kworker/u8:2+flush-179:008:50:251
2995159910296,4cyclictest372230-21kworker/u8:2+flush-179:011:25:231
2995159910190,9cyclictest402961-21apt-get12:29:591
2995159910095,4cyclictest362371-21kworker/u8:0+events_unbound10:45:241
2995159910095,4cyclictest354388-21kworker/u8:2+flush-179:010:00:251
2995159910094,4cyclictest383572-21kworker/u8:0+events_unbound12:15:231
299515999994,4cyclictest309012-21kworker/u8:1+flush-179:008:30:251
299515999994,4cyclictest297922-21kworker/u8:2+events_unbound07:15:241
299513999989,7cyclictest300986-21latency_hist07:15:010
299513999888,7cyclictest354441-21latency_hist10:00:010
299513999882,11cyclictest1213033-21systemd-journal10:40:010
299515999792,3cyclictest334488-21kworker/u8:0+flush-179:009:10:201
299515999791,4cyclictest380463-21kworker/u8:3+events_unbound11:35:151
299515999691,4cyclictest372168-21kworker/u8:1+events_unbound11:05:251
299515999689,4cyclictest323865-21kworker/u8:3+flush-179:008:25:201
299515999687,7cyclictest383572-21kworker/u8:0+events_unbound11:55:011
299515999490,3cyclictest347800-21kworker/u8:3+events_unbound09:55:241
299515999488,4cyclictest283756-21kworker/u8:3+events_unbound07:25:241
299515999488,4cyclictest283756-21kworker/u8:3+events_unbound07:25:241
299515999486,6cyclictest347800-21kworker/u8:3+events_unbound10:05:241
299515999388,3cyclictest283756-21kworker/u8:3+flush-179:007:55:181
299513999381,10cyclictest374049-21apt-get11:00:120
299513999285,4cyclictest331821-21kworker/u8:2+events_unbound08:50:000
299515999186,4cyclictest283756-21kworker/u8:3+events_unbound08:00:241
299515999086,3cyclictest309012-21kworker/u8:1+events_unbound07:50:271
299515999085,4cyclictest347800-21kworker/u8:3+flush-179:010:25:231
299515999082,3cyclictest283756-21kworker/u8:3+events_unbound07:30:231
299515999080,7cyclictest344570-21latency_hist09:30:001
299515998984,4cyclictest362371-21kworker/u8:0+events_unbound10:35:251
299515998984,4cyclictest325505-21kworker/u8:0+events_unbound08:45:221
299513998983,4cyclictest307354-21latency_hist07:35:000
299513998979,7cyclictest302589-21latency_hist07:20:010
299515998883,4cyclictest334488-21kworker/u8:0+events_unbound09:20:191
299515998782,4cyclictest372168-21kworker/u8:1+events_unbound11:20:001
299513998781,4cyclictest383572-21kworker/u8:0+events_unbound11:30:150
299515998681,3cyclictest383572-21kworker/u8:0+events_unbound12:10:151
299513998677,6cyclictest372186-21latency_hist10:55:010
299515998479,4cyclictest344606-21kworker/u8:2+events_unbound09:35:241
299515998477,5cyclictest319108-21kworker/u8:2+events_unbound08:15:181
299513998272,7cyclictest1213033-21systemd-journal09:49:240
299513998272,7cyclictest1213033-21systemd-journal09:49:230
299513998173,5cyclictest383572-21kworker/u8:0+flush-179:012:35:210
299515998075,4cyclictest362371-21kworker/u8:0+events_unbound10:40:211
299515998075,4cyclictest362371-21kworker/u8:0+events_unbound10:40:201
299515997874,3cyclictest283756-21kworker/u8:3+flush-179:007:35:211
299513997868,8cyclictest1213033-21systemd-journal08:34:550
299515997773,3cyclictest283756-21kworker/u8:3+flush-179:007:10:151
299515997764,9cyclictest309012-21kworker/u8:1+flush-179:008:20:231
299513997768,7cyclictest510-21rs:main0
299513997768,7cyclictest510-21rs:main0
299515997670,4cyclictest309012-21kworker/u8:1+flush-179:008:10:201
299513997665,8cyclictest328658-21latency_hist08:40:010
299515997570,4cyclictest383572-21kworker/u8:0+flush-179:011:45:211
299515997565,4cyclictest372230-21kworker/u8:2+events_unbound11:10:151
299513997565,7cyclictest510-21rs:main0
299515997469,4cyclictest304213-21kworker/u8:0+flush-179:007:40:271
299515997369,3cyclictest370069-21kworker/u8:3+flush-179:010:50:211
299515997267,3cyclictest383572-21kworker/u8:0+flush-179:012:00:191
299519996963,4cyclictest369023-21turbostat10:45:003
299519996963,4cyclictest369023-21turbostat10:44:593
299515996965,3cyclictest352820-21kworker/u8:1+flush-179:010:15:251
299513996962,5cyclictest388370-21latency_hist11:45:010
299513996962,4cyclictest347800-21kworker/u8:3+flush-179:010:10:160
299515996864,3cyclictest283756-21kworker/u8:3+flush-179:007:45:211
299515996862,4cyclictest372168-21kworker/u8:1+events_unbound10:55:201
299515996860,6cyclictest299374-21latency_hist07:10:021
299513996864,2cyclictest383572-21kworker/u8:0+events_unbound12:10:240
299513996859,6cyclictest404790-21latency_hist12:35:000
299513996857,9cyclictest1213033-21systemd-journal09:45:000
299515996762,4cyclictest336578-21kworker/u8:1+events_unbound09:05:261
29951999660,63cyclictest0-21swapper/310:53:593
299515996660,3cyclictest315888-21kworker/u8:0+flush-179:008:05:151
299513996659,5cyclictest378809-21latency_hist11:15:010
299513996657,7cyclictest310893-21latency_hist07:45:020
299515996459,4cyclictest372230-21kworker/u8:2+flush-179:011:55:181
299513996457,3cyclictest315888-21kworker/u8:0+events_unbound08:05:230
299513996351,8cyclictest334488-21kworker/u8:0+flush-179:009:50:250
299515996257,4cyclictest372230-21kworker/u8:2+flush-179:011:30:261
299515996254,6cyclictest347800-21kworker/u8:3+flush-179:010:10:211
299513996252,8cyclictest383572-21kworker/u8:0+events_unbound11:30:010
299515996155,4cyclictest331880-21kworker/u8:3+events_unbound08:55:131
299513996151,8cyclictest510-21rs:main0
299513996151,7cyclictest389954-21latency_hist11:50:000
299515996055,4cyclictest309012-21kworker/u8:1+flush-179:008:35:271
299513996047,9cyclictest352820-21kworker/u8:1+flush-179:010:20:230
299513995956,2cyclictest283756-21kworker/u8:3+events_unbound07:55:010
299513995955,3cyclictest304213-21kworker/u8:0+flush-179:007:35:210
299513995954,4cyclictest372168-21kworker/u8:1+flush-179:010:55:240
299513995847,9cyclictest390210-21apt-get11:50:100
299513995749,5cyclictest401163-21kworker/u8:2+flush-179:012:25:130
299513995651,4cyclictest297922-21kworker/u8:2+flush-179:007:20:210
299513995643,7cyclictest309012-21kworker/u8:1+flush-179:008:10:200
299513995642,10cyclictest331821-21kworker/u8:2+flush-179:008:50:200
299519995553,1cyclictest0-21swapper/311:13:593
299515995546,3cyclictest334488-21kworker/u8:0+events_unbound09:50:151
299513995549,4cyclictest347755-21latency_hist09:40:010
299519995447,5cyclictest394743-21turbostat12:04:593
299513995443,8cyclictest334488-21kworker/u8:0+flush-179:009:00:000
299513995443,5cyclictest321-21hwrng12:22:590
299513995345,5cyclictest334488-21kworker/u8:0+flush-179:009:15:240
299518995249,2cyclictest0-21swapper/209:11:592
299513995242,8cyclictest1213033-21systemd-journal12:20:000
299513995141,7cyclictest383572-21kworker/u8:0+flush-179:011:55:120
299513995139,9cyclictest510-21rs:main0
299513995139,9cyclictest380463-21kworker/u8:3+flush-179:011:35:210
299513995043,5cyclictest347800-21kworker/u8:3+flush-179:010:17:210
299513994941,5cyclictest1213033-21systemd-journal07:49:180
4577091480,12ptp4l441ktimers/307:09:563
299513994838,7cyclictest394755-21kworker/u8:3+events_unbound12:05:140
299519994740,5cyclictest344577-21turbostat09:29:593
299513994642,2cyclictest372168-21kworker/u8:1+events_unbound11:20:200
299513994639,5cyclictest309012-21kworker/u8:1+events_unbound08:00:010
299513994636,7cyclictest370600-21latency_hist10:50:010
299513994536,7cyclictest0-21swapper/010:30:120
299513994436,6cyclictest347800-21kworker/u8:3+events_unbound10:10:010
299513994434,7cyclictest319108-21kworker/u8:2+flush-179:008:15:130
299519994340,2cyclictest0-21swapper/307:14:553
299513994331,9cyclictest309012-21kworker/u8:1+flush-179:008:00:160
299513994239,2cyclictest0-21swapper/009:03:580
299513994230,9cyclictest372168-21kworker/u8:1+events_unbound11:05:210
299519994136,4cyclictest402960-21turbostat12:30:003
29951999410,39cyclictest375392-21turbostat11:05:003
299518994139,1cyclictest0-21swapper/208:19:592
299518994138,2cyclictest0-21swapper/207:17:592
299513994131,7cyclictest339770-21kworker/u8:3+flush-179:009:15:000
299519994034,5cyclictest327068-21turbostat08:35:003
29951999400,38cyclictest406414-21turbostat12:40:003
299518994037,2cyclictest0-21swapper/209:00:592
299518994037,2cyclictest0-21swapper/208:05:582
29951999390,38cyclictest363988-21turbostat10:30:003
29951999390,38cyclictest347759-21turbostat09:40:003
29951999390,37cyclictest336627-21turbostat09:05:003
299518993936,2cyclictest0-21swapper/212:34:552
299518993936,2cyclictest0-21swapper/211:25:592
299519993833,4cyclictest335034-21turbostat09:00:003
299518993835,2cyclictest0-21swapper/211:56:592
29951899380,36cyclictest0-21swapper/210:36:582
29951899380,36cyclictest0-21swapper/210:24:592
29951899380,36cyclictest0-21swapper/207:35:582
29951899380,35cyclictest0-21swapper/210:04:552
29951899380,35cyclictest0-21swapper/208:35:582
29951399380,37cyclictest714-21Xorg09:33:000
29951999370,36cyclictest431rcuc/311:39:593
29951899370,35cyclictest0-21swapper/209:37:002
29951899370,35cyclictest0-21swapper/208:31:002
29951399373,31cyclictest354691-21apt-get10:00:140
29951399370,1cyclictest0-21swapper/009:27:590
299519993634,1cyclictest0-21swapper/311:33:583
299519993634,1cyclictest0-21swapper/307:18:583
29951999360,35cyclictest0-21swapper/312:13:593
29951999360,35cyclictest0-21swapper/307:34:553
299518993633,2cyclictest0-21swapper/211:46:592
299518993633,2cyclictest0-21swapper/211:42:592
299518993633,2cyclictest0-21swapper/210:56:592
299518993633,2cyclictest0-21swapper/207:11:002
29951899360,1cyclictest0-21swapper/210:32:592
299513993630,4cyclictest325595-21latency_hist08:30:020
299519993533,1cyclictest0-21swapper/310:33:593
29951999350,1cyclictest0-21swapper/311:44:593
299518993532,2cyclictest0-21swapper/212:22:002
299518993532,2cyclictest0-21swapper/209:43:592
29951899352,2cyclictest0-21swapper/208:43:592
29951899350,1cyclictest0-21swapper/210:12:592
299513993526,7cyclictest334488-21kworker/u8:0+flush-179:009:20:230
299519993432,1cyclictest0-21swapper/312:06:003
299519993432,1cyclictest0-21swapper/309:18:583
299519993432,1cyclictest0-21swapper/308:54:593
299519993429,4cyclictest391554-21turbostat11:55:013
299513993425,7cyclictest283756-21kworker/u8:3+flush-179:007:25:120
299513993425,7cyclictest283756-21kworker/u8:3+flush-179:007:25:110
299519993331,1cyclictest0-21swapper/309:33:003
299518993330,2cyclictest0-21swapper/211:53:592
299518993330,2cyclictest0-21swapper/208:12:592
299519993230,1cyclictest0-21swapper/311:47:583
299519993226,5cyclictest360810-21turbostat10:20:013
299519993226,4cyclictest319114-21turbostat08:10:003
29951999320,31cyclictest304190-21turbostat07:25:003
299518993229,2cyclictest0-21swapper/209:33:592
29951899320,30cyclictest0-21swapper/209:07:592
299519993129,1cyclictest0-21swapper/311:18:593
299519993129,1cyclictest0-21swapper/308:36:593
299519993129,1cyclictest0-21swapper/308:23:593
299518993128,2cyclictest0-21swapper/211:24:552
299513993122,5cyclictest0-21swapper/009:05:130
299519993027,2cyclictest0-21swapper/310:36:003
299519993027,2cyclictest0-21swapper/308:45:123
299519993027,2cyclictest0-21swapper/308:19:543
299519993025,4cyclictest317525-21turbostat08:05:003
299518993027,2cyclictest0-21swapper/207:41:002
29951899300,29cyclictest0-21swapper/209:25:132
299519992927,1cyclictest0-21swapper/311:25:123
299519992927,1cyclictest0-21swapper/310:45:123
299519992927,1cyclictest0-21swapper/309:50:023
299519992925,2cyclictest0-21swapper/312:25:003
299519992925,1cyclictest0-21swapper/307:40:043
29951999290,28cyclictest0-21swapper/310:00:143
29951999290,27cyclictest0-21swapper/311:20:123
299518992926,2cyclictest0-21swapper/212:10:142
299518992926,2cyclictest0-21swapper/211:31:592
299518992926,2cyclictest0-21swapper/207:45:022
29951899290,28cyclictest0-21swapper/211:10:032
29951899290,27cyclictest0-21swapper/212:38:002
29951899290,27cyclictest0-21swapper/211:00:142
29951899290,27cyclictest0-21swapper/210:40:142
29951899290,27cyclictest0-21swapper/210:40:142
29951899290,27cyclictest0-21swapper/210:15:122
29951899290,27cyclictest0-21swapper/210:05:122
29951899290,27cyclictest0-21swapper/209:50:122
29951899290,27cyclictest0-21swapper/208:00:132
29951899290,27cyclictest0-21swapper/207:50:132
299519992826,1cyclictest0-21swapper/309:49:243
299519992826,1cyclictest0-21swapper/309:49:233
299519992826,1cyclictest0-21swapper/307:45:023
29951999280,27cyclictest0-21swapper/312:30:023
29951999280,27cyclictest0-21swapper/307:30:003
29951999280,27cyclictest0-21swapper/307:30:003
299518992825,2cyclictest0-21swapper/209:45:592
299518992825,2cyclictest0-21swapper/209:45:592
299518992825,2cyclictest0-21swapper/209:19:552
299518992825,2cyclictest0-21swapper/208:21:592
29951899280,26cyclictest0-21swapper/212:00:132
29951899280,26cyclictest0-21swapper/211:35:592
299513992826,1cyclictest0-21swapper/008:43:000
299519992725,1cyclictest0-21swapper/309:06:593
299518992724,2cyclictest0-21swapper/207:59:542
29951899270,2cyclictest0-21swapper/211:05:142
29951899270,24cyclictest0-21swapper/210:50:002
29951899270,24cyclictest0-21swapper/210:27:592
29951899270,24cyclictest0-21swapper/207:32:592
299519992624,1cyclictest0-21swapper/310:22:593
29951999260,1cyclictest0-21swapper/307:55:133
299518992623,2cyclictest0-21swapper/208:55:122
299518992622,2cyclictest0-21swapper/212:15:592
29951899260,2cyclictest0-21swapper/208:50:122
29951899260,24cyclictest0-21swapper/208:25:592
4577091250,3ptp4l441ktimers/312:00:013
4577091250,3ptp4l441ktimers/309:24:563
299519992523,1cyclictest0-21swapper/312:16:583
299519992522,2cyclictest0-21swapper/310:07:593
299518992522,2cyclictest0-21swapper/209:20:592
29951899250,2cyclictest0-21swapper/212:25:122
29951899250,2cyclictest0-21swapper/208:50:012
4577091240,3ptp4l61490irq/134-eno1-TxRx-010:59:553
4577091240,3ptp4l61490irq/134-eno1-TxRx-010:15:003
4577091240,3ptp4l61490irq/134-eno1-TxRx-010:00:003
4577091240,2ptp4l441ktimers/309:45:013
4577091240,2ptp4l441ktimers/307:40:013
299519992421,2cyclictest431rcuc/309:10:123
29951999240,1cyclictest0-21swapper/308:13:003
299518992422,1cyclictest0-21swapper/207:24:592
4577091230,3ptp4l61490irq/134-eno1-TxRx-011:09:563
4577091230,2ptp4l441ktimers/308:44:563
299513992315,7cyclictest299543-21cat07:10:020
4577091220,2ptp4l441ktimers/308:29:563
4577091220,2ptp4l441ktimers/307:54:563
299518992220,1cyclictest0-21swapper/212:06:592
299518992220,1cyclictest0-21swapper/210:00:002
299518991816,1cyclictest0-21swapper/207:25:122
299518991816,1cyclictest0-21swapper/207:25:112
299518991713,2cyclictest0-21swapper/210:52:002
2995189974,2cyclictest0-21swapper/211:15:132
2995189930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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