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2026-06-29 - 16:07
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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 29, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291707999130120,7cyclictest2929741-21latency_hist07:50:011
291707999127117,7cyclictest2959754-21latency_hist09:20:011
291707999126118,6cyclictest2980449-21kworker/u8:0+events_unbound10:25:011
291707999124113,8cyclictest2921760-21latency_hist07:25:011
291707999123112,8cyclictest3009379-21latency_hist11:55:011
291707899123109,11cyclictest2941154-21latency_hist08:25:010
291707999119107,4cyclictest2967650-21kworker/u8:0+events_unbound09:50:161
291707999116107,6cyclictest2921795-21kworker/u8:2+events_unbound08:00:201
291707899113106,4cyclictest2991911-21kworker/u8:1+events_unbound11:05:230
291707899113101,8cyclictest2915487-21kworker/u8:3+flush-179:007:15:010
29170789911199,6cyclictest2942466-21kworker/u8:2+events_unbound08:25:240
291707899111104,5cyclictest3001399-21kworker/u8:0+flush-179:011:35:000
29170799910595,7cyclictest2921194-21kworker/u8:1+events_unbound07:30:211
29170789910292,7cyclictest2988424-21latency_hist10:50:010
29170789910196,4cyclictest2942466-21kworker/u8:2+flush-179:008:55:230
29170789910187,11cyclictest2990017-21apt-get10:54:590
29170799910087,6cyclictest2976345-21kworker/u8:0+events_unbound10:10:201
2917079999986,5cyclictest2998921-21kworker/u8:1+events_unbound12:00:151
2917078999993,4cyclictest2942466-21kworker/u8:2+events_unbound08:30:210
2917078999992,5cyclictest3003002-21kworker/u8:3+flush-179:011:35:170
2917078999989,7cyclictest2944884-21kworker/u8:0+events_unbound09:05:010
2917079999891,5cyclictest2986823-21kworker/u8:2+events_unbound11:00:191
2917079999885,11cyclictest2932939-21apt-get08:00:001
2917078999893,3cyclictest2955222-21kworker/u8:2+events_unbound09:15:020
2917078999893,3cyclictest2955222-21kworker/u8:2+events_unbound09:15:020
2917079999690,4cyclictest2974140-21kworker/u8:3+flush-179:010:25:251
2917078999688,5cyclictest2995084-21kworker/u8:0+flush-179:011:15:270
2917078999586,6cyclictest2942466-21kworker/u8:2+events_unbound08:45:150
2917079999486,6cyclictest2998921-21kworker/u8:1+events_unbound11:25:141
2917079999486,5cyclictest2959736-21kworker/u8:3+events_unbound09:25:131
2917079999388,4cyclictest3017326-21kworker/u8:2+flush-179:012:25:011
2917079999387,5cyclictest3010952-21kworker/u8:0+flush-179:012:30:211
2917078999381,9cyclictest3001399-21kworker/u8:0+flush-179:011:45:220
2917079999286,4cyclictest2967769-21kworker/u8:2+flush-179:010:00:201
2917079999285,6cyclictest3008798-21kworker/u8:2+events_unbound11:55:211
2917079999282,7cyclictest2978877-21latency_hist10:20:011
2917078999286,4cyclictest2933432-21kworker/u8:0+events_unbound08:05:240
2917078999284,5cyclictest3010952-21kworker/u8:0+events_unbound12:30:180
2917079999187,3cyclictest2924773-21kworker/u8:0+flush-179:007:36:401
2917079999183,6cyclictest1213033-21systemd-journal11:50:011
2917078999181,7cyclictest2916950-21latency_hist07:10:020
2917079999085,4cyclictest2986881-21kworker/u8:3+flush-179:010:50:251
2917079999084,4cyclictest2998921-21kworker/u8:1+flush-179:012:15:211
2917079999084,4cyclictest2967769-21kworker/u8:2+events_unbound10:05:221
2917079998984,3cyclictest2977253-21kworker/u8:1+events_unbound10:35:221
2917079998983,4cyclictest2931362-21kworker/u8:1+events_unbound08:05:181
2917078998980,7cyclictest3020774-21kworker/u8:3+events_unbound12:35:270
2917079998881,5cyclictest2953355-21kworker/u8:1+events_unbound09:00:231
2917079998877,5cyclictest2980449-21kworker/u8:0+events_unbound10:40:221
2917078998881,5cyclictest2974140-21kworker/u8:3+events_unbound10:15:250
2917079998782,4cyclictest3001399-21kworker/u8:0+events_unbound11:35:241
2917079998781,5cyclictest2942466-21kworker/u8:2+events_unbound08:50:241
2917079998781,4cyclictest2921795-21kworker/u8:2+flush-179:007:40:161
2917079998781,4cyclictest2921795-21kworker/u8:2+flush-179:007:40:161
2917078998781,5cyclictest2959736-21kworker/u8:3+flush-179:009:40:210
2917078998779,6cyclictest2924773-21kworker/u8:0+flush-179:007:45:220
2917079998667,17cyclictest2897534-21kworker/u8:0+flush-179:007:15:171
2917078998679,4cyclictest2986881-21kworker/u8:3+events_unbound11:10:200
2917079998580,4cyclictest2935446-21kworker/u8:3+events_unbound08:25:131
2917079998580,3cyclictest2986881-21kworker/u8:3+flush-179:011:20:201
2917079998579,4cyclictest2998921-21kworker/u8:1+flush-179:011:30:211
2917078998577,5cyclictest2935446-21kworker/u8:3+flush-179:008:10:210
2917078998573,4cyclictest2953355-21kworker/u8:1+events_unbound09:10:010
2917078998573,10cyclictest2998501-21apt-get11:20:110
2917079998480,3cyclictest2959736-21kworker/u8:3+events_unbound09:30:251
2917079998479,4cyclictest2980449-21kworker/u8:0+events_unbound10:30:251
2917079998371,5cyclictest2998921-21kworker/u8:1+events_unbound12:10:131
2917078998374,6cyclictest2986837-21latency_hist10:45:010
2917078998274,6cyclictest2959736-21kworker/u8:3+flush-179:009:30:200
2917079998177,3cyclictest2937950-21kworker/u8:0+flush-179:008:15:211
2917079998176,4cyclictest2921194-21kworker/u8:1+flush-179:007:25:231
2917078998174,4cyclictest2942466-21kworker/u8:2+flush-179:008:35:160
2917079998074,4cyclictest2986881-21kworker/u8:3+events_unbound10:55:161
2917079998072,6cyclictest2897534-21kworker/u8:0+events_unbound07:10:181
2917078998076,3cyclictest2924773-21kworker/u8:0+flush-179:007:40:260
2917078998076,3cyclictest2924773-21kworker/u8:0+flush-179:007:40:260
2917079997973,4cyclictest2998921-21kworker/u8:1+flush-179:011:40:201
2917079997872,4cyclictest2969548-21kworker/u8:1+flush-179:009:55:151
2917079997772,4cyclictest2967650-21kworker/u8:0+events_unbound09:45:221
2917079997772,4cyclictest2944884-21kworker/u8:0+flush-179:009:20:221
2917078997772,3cyclictest2969548-21kworker/u8:1+flush-179:009:55:130
2917078997768,7cyclictest2967650-21kworker/u8:0+flush-179:009:45:250
2917078997767,7cyclictest2964765-21kworker/u8:1+flush-179:009:35:210
2917079997670,5cyclictest2998921-21kworker/u8:1+events_unbound12:05:241
2917079997670,4cyclictest2986881-21kworker/u8:3+flush-179:011:10:161
2917079997667,7cyclictest2949942-21latency_hist08:50:021
2917079997664,9cyclictest1213033-21systemd-journal09:40:171
2917078997666,7cyclictest2998921-21kworker/u8:1+flush-179:012:05:260
2917079997569,5cyclictest2924920-21kworker/u8:3+flush-179:007:50:251
2917079997567,6cyclictest2943505-21cat08:30:011
2917078997569,4cyclictest3010952-21kworker/u8:0+events_unbound12:15:230
2917078997566,6cyclictest2967650-21kworker/u8:0+flush-179:009:50:180
2917079997469,3cyclictest2964765-21kworker/u8:1+flush-179:009:35:161
2917079997468,4cyclictest2942466-21kworker/u8:2+events_unbound08:55:201
2917078997469,4cyclictest2921795-21kworker/u8:2+flush-179:008:00:020
2917078997467,5cyclictest2974140-21kworker/u8:3+events_unbound10:25:250
2917078997466,5cyclictest2986881-21kworker/u8:3+flush-179:010:55:150
2917078997368,4cyclictest3008798-21kworker/u8:2+flush-179:011:54:560
2917078997368,4cyclictest2980449-21kworker/u8:0+flush-179:010:30:270
2917078997368,4cyclictest2944884-21kworker/u8:0+flush-179:009:24:550
2917078997368,4cyclictest2921795-21kworker/u8:2+flush-179:007:29:550
2917078997366,4cyclictest2998921-21kworker/u8:1+events_unbound11:45:000
2917078997267,3cyclictest2986823-21kworker/u8:2+flush-179:011:00:170
2917079996964,3cyclictest2991911-21kworker/u8:1+flush-179:011:05:211
2917079996962,5cyclictest3020774-21kworker/u8:3+flush-179:012:36:411
2917078996963,4cyclictest3010952-21kworker/u8:0+flush-179:012:00:250
2917078996963,4cyclictest2937950-21kworker/u8:0+events_unbound08:15:250
2917078996959,5cyclictest2924920-21kworker/u8:3+events_unbound07:50:130
2917079996861,4cyclictest3010952-21kworker/u8:0+flush-179:012:25:111
2917078996861,5cyclictest2962943-21latency_hist09:30:010
2917078996861,4cyclictest3010952-21kworker/u8:0+events_unbound12:20:230
2917079996662,3cyclictest2942466-21kworker/u8:2+flush-179:008:40:381
2917079996662,3cyclictest2935446-21kworker/u8:3+flush-179:008:10:281
2917079996660,4cyclictest2944930-21kworker/u8:3+flush-179:008:35:131
2917078996459,3cyclictest2915487-21kworker/u8:3+flush-179:007:20:160
2917086996361,1cyclictest0-21swapper/308:02:593
2917078996155,5cyclictest2998921-21kworker/u8:1+events_unbound12:10:230
2917078996155,4cyclictest2974140-21kworker/u8:3+flush-179:010:20:220
2917079996048,10cyclictest2941169-21apt-get08:25:011
2917078996053,5cyclictest2942466-21kworker/u8:2+flush-179:008:50:200
2917079995954,3cyclictest2986823-21kworker/u8:2+events_unbound10:45:141
2917078995956,2cyclictest2976345-21kworker/u8:0+events_unbound10:10:220
2917078995951,5cyclictest3001421-21latency_hist11:30:010
2917078995850,6cyclictest3017326-21kworker/u8:2+flush-179:012:25:250
2917079995752,4cyclictest2944884-21kworker/u8:0+events_unbound09:09:571
2917078995751,4cyclictest2897534-21kworker/u8:0+flush-179:007:15:220
2917078995749,5cyclictest2921795-21kworker/u8:2+flush-179:007:55:160
2917086995638,16cyclictest3022388-21turbostat12:35:003
2917078995650,4cyclictest2967769-21kworker/u8:2+events_unbound10:00:140
2917078995645,9cyclictest2923894-21diskstats07:30:180
2917078995549,3cyclictest2974140-21kworker/u8:3+flush-179:010:05:160
2917078995448,4cyclictest2977253-21kworker/u8:1+flush-179:010:35:220
2917078995146,4cyclictest2942466-21kworker/u8:2+flush-179:008:40:210
4577091470,12ptp4l61490irq/134-eno1-TxRx-007:10:003
2917086994745,1cyclictest0-21swapper/307:41:593
2917086994745,1cyclictest0-21swapper/307:41:593
2917078994641,4cyclictest2955222-21kworker/u8:2+events_unbound09:16:410
2917079994541,3cyclictest2955222-21kworker/u8:2+flush-179:009:14:561
2917079994541,3cyclictest2955222-21kworker/u8:2+flush-179:009:14:551
2917078994540,4cyclictest2921795-21kworker/u8:2+flush-179:007:35:160
2917081994340,2cyclictest0-21swapper/211:01:582
2917078994237,4cyclictest2998921-21kworker/u8:1+flush-179:011:55:260
2917086994133,7cyclictest0-21swapper/311:24:593
291708699410,40cyclictest0-21swapper/310:24:593
2917079994135,4cyclictest2998277-21sh11:20:001
2917086994023,5cyclictest2993486-21turbostat11:05:013
291708699400,39cyclictest3010981-21turbostat12:00:003
291708699400,39cyclictest2998241-21turbostat11:20:013
291708699400,38cyclictest3003029-21turbostat11:35:003
291708699400,38cyclictest2977283-21turbostat10:15:013
291708699400,38cyclictest2969326-21turbostat09:49:593
2917086993934,4cyclictest2978871-21turbostat10:20:013
2917086993934,4cyclictest2943070-21turbostat08:30:003
291708699390,38cyclictest2924952-21turbostat07:35:013
2917081993936,2cyclictest0-21swapper/210:27:582
2917081993935,2cyclictest0-21swapper/212:34:592
2917086993833,4cyclictest3014176-21turbostat12:10:013
291708699380,37cyclictest2920164-21turbostat07:20:003
2917081993835,2cyclictest0-21swapper/212:09:592
2917081993835,2cyclictest0-21swapper/211:37:592
291708199380,36cyclictest0-21swapper/212:13:592
291708199380,36cyclictest0-21swapper/210:42:592
291708199380,36cyclictest0-21swapper/207:13:592
2917086993732,4cyclictest2966133-21turbostat09:40:003
291708699370,36cyclictest0-21swapper/307:23:593
2917081993734,2cyclictest0-21swapper/211:59:002
2917081993734,2cyclictest0-21swapper/211:22:002
2917081993734,2cyclictest0-21swapper/208:29:562
2917081993733,2cyclictest0-21swapper/208:03:592
291708199370,35cyclictest0-21swapper/212:26:592
291708199370,35cyclictest0-21swapper/211:51:592
291708199370,35cyclictest0-21swapper/211:45:002
291708199370,35cyclictest0-21swapper/211:25:592
291708199370,35cyclictest0-21swapper/210:16:592
291708199370,35cyclictest0-21swapper/208:30:592
291708199370,35cyclictest0-21swapper/208:07:002
291708199370,35cyclictest0-21swapper/207:36:592
291708199370,35cyclictest0-21swapper/207:25:592
291708199370,1cyclictest0-21swapper/207:18:592
2917086993634,1cyclictest0-21swapper/311:07:593
2917086993634,1cyclictest0-21swapper/310:04:553
2917086993634,1cyclictest0-21swapper/307:14:553
2917086993633,2cyclictest0-21swapper/309:59:593
2917086993630,5cyclictest2991880-21turbostat11:00:003
2917086993630,5cyclictest2982060-21turbostat10:30:003
291708699360,35cyclictest0-21swapper/312:18:593
291708699360,35cyclictest0-21swapper/310:34:553
291708699360,35cyclictest0-21swapper/308:19:553
291708699360,1cyclictest0-21swapper/312:37:593
2917081993633,2cyclictest0-21swapper/209:07:002
2917081993633,2cyclictest0-21swapper/208:58:592
291708199360,1cyclictest0-21swapper/212:23:592
291708199360,1cyclictest0-21swapper/210:47:582
2917086993533,1cyclictest0-21swapper/311:36:593
2917086993529,5cyclictest2951798-21turbostat08:55:003
2917086993528,5cyclictest2941157-21turbostat08:25:003
291708699350,1cyclictest0-21swapper/308:44:553
2917081993531,2cyclictest0-21swapper/210:08:592
291708199350,1cyclictest0-21swapper/208:17:592
2917086993432,1cyclictest0-21swapper/310:07:593
2917086993432,1cyclictest0-21swapper/309:33:583
2917086993429,4cyclictest2949953-21turbostat08:50:013
2917086993428,5cyclictest2953393-21turbostat09:00:003
2917081993432,1cyclictest0-21swapper/210:25:012
2917081993431,2cyclictest0-21swapper/212:38:592
2917081993431,2cyclictest0-21swapper/211:31:582
2917081993431,2cyclictest0-21swapper/207:48:592
2917086993331,1cyclictest0-21swapper/312:00:583
2917086993329,3cyclictest2936378-21turbostat08:10:003
2917086993325,2cyclictest0-21swapper/308:30:003
291708699330,1cyclictest0-21swapper/311:45:133
2917081993330,2cyclictest0-21swapper/207:52:002
2917081993229,2cyclictest0-21swapper/209:26:592
2917081993229,2cyclictest0-21swapper/207:31:592
4577091310,6ptp4l441ktimers/310:49:563
2917086993129,1cyclictest0-21swapper/312:20:593
2917086993124,6cyclictest0-21swapper/309:04:553
2917081993128,2cyclictest0-21swapper/208:38:582
2917081993125,2cyclictest0-21swapper/208:10:152
2917086993028,1cyclictest0-21swapper/312:25:593
291708699300,1cyclictest0-21swapper/309:13:593
291708699300,1cyclictest0-21swapper/309:13:593
2917081993027,2cyclictest0-21swapper/209:00:112
291708199300,28cyclictest0-21swapper/210:35:142
291708699290,28cyclictest0-21swapper/310:55:003
291708699290,27cyclictest0-21swapper/308:35:143
291708699290,21cyclictest0-21swapper/310:40:143
2917081992926,2cyclictest0-21swapper/210:51:002
2917081992926,2cyclictest0-21swapper/209:12:592
2917081992926,2cyclictest0-21swapper/209:12:582
2917081992926,2cyclictest0-21swapper/208:50:022
291708199290,27cyclictest0-21swapper/212:00:122
291708199290,27cyclictest0-21swapper/209:50:132
291708199290,27cyclictest0-21swapper/209:40:112
291708199290,27cyclictest0-21swapper/208:40:102
291708199290,27cyclictest0-21swapper/208:20:112
291708199290,27cyclictest0-21swapper/207:40:142
291708199290,27cyclictest0-21swapper/207:40:142
291708199290,1cyclictest0-21swapper/209:15:142
4577091280,7ptp4l441ktimers/311:30:003
4577091280,6ptp4l441ktimers/311:55:023
291708699280,27cyclictest0-21swapper/310:38:593
291708699280,26cyclictest0-21swapper/308:00:013
291708699280,1cyclictest0-21swapper/309:25:133
2917081992825,2cyclictest0-21swapper/212:18:592
2917081992825,2cyclictest0-21swapper/209:48:592
2917081992825,2cyclictest0-21swapper/208:50:022
291708199280,26cyclictest0-21swapper/210:55:022
291708199280,26cyclictest0-21swapper/209:55:122
4577091270,6ptp4l441ktimers/309:55:003
4577091270,6ptp4l441ktimers/309:25:013
2917086992725,1cyclictest0-21swapper/309:17:583
2917086992725,1cyclictest0-21swapper/307:35:593
2917086992725,1cyclictest0-21swapper/307:25:113
291708699270,26cyclictest0-21swapper/307:46:593
2917081992724,2cyclictest0-21swapper/209:32:592
4577091260,5ptp4l441ktimers/311:45:003
2917086992624,1cyclictest0-21swapper/309:40:593
2917081992623,2cyclictest0-21swapper/211:45:582
291708199260,2cyclictest0-21swapper/210:00:592
291708199260,25cyclictest0-21swapper/211:20:002
291708199260,24cyclictest0-21swapper/209:35:592
291708199260,24cyclictest0-21swapper/207:59:552
4577091250,6ptp4l61490irq/134-eno1-TxRx-011:15:003
4577091250,6ptp4l61490irq/134-eno1-TxRx-008:15:003
4577091250,5ptp4l441ktimers/312:14:553
4577091250,5ptp4l441ktimers/307:54:553
2917081992420,2cyclictest0-21swapper/209:21:592
4577091230,5ptp4l441ktimers/309:09:553
2917081992320,2cyclictest0-21swapper/210:33:592
2917081992219,2cyclictest0-21swapper/211:11:592
2917079992111,2cyclictest171rcu_preempt07:10:021
2917081992016,2cyclictest0-21swapper/207:20:152
2917081991411,2cyclictest0-21swapper/211:09:562
29170819974,2cyclictest0-21swapper/210:11:412
29170819941,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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