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2026-09-20 - 00:15
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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 Sat Sep 19, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312090399148135,10cyclictest3193352-21kworker/u8:1+flush-179:010:55:001
312089699137127,7cyclictest3169020-21kworker/u8:0+flush-179:009:50:190
312090399135124,8cyclictest3207696-21latency_hist11:40:011
312089699134130,2cyclictest3138474-21kworker/u8:2+events_unbound08:35:010
312089699133116,7cyclictest3146484-21kworker/u8:1+events_unbound08:35:220
312089699129118,8cyclictest3169020-21kworker/u8:0+flush-179:009:45:140
312089699128118,7cyclictest3138474-21kworker/u8:2+flush-179:008:05:210
312089699127120,5cyclictest3140069-21kworker/u8:3+flush-179:008:20:180
312089699125118,5cyclictest3153776-21kworker/u8:0+events_unbound09:10:230
312089699125117,5cyclictest3140069-21kworker/u8:3+flush-179:008:15:250
312089699123117,4cyclictest3206098-21kworker/u8:3+flush-179:012:05:240
312089699121114,5cyclictest3138474-21kworker/u8:2+events_unbound08:25:240
312089699121108,5cyclictest3140069-21kworker/u8:3+flush-179:008:50:140
312089699120114,4cyclictest3119176-21kworker/u8:1+flush-179:007:50:250
312089699120114,4cyclictest3119176-21kworker/u8:1+flush-179:007:50:240
312089699120110,7cyclictest3181947-21kworker/u8:1+flush-179:010:20:150
312089699119110,6cyclictest3220404-21kworker/u8:0+flush-179:012:30:210
3120896991180,114cyclictest1-21systemd10:50:240
312090399117110,5cyclictest3119176-21kworker/u8:1+events_unbound07:40:001
312089699117111,4cyclictest3217274-21kworker/u8:1+events_unbound12:10:260
312089699117109,5cyclictest3206098-21kworker/u8:3+events_unbound11:55:220
312089699117106,8cyclictest3119176-21kworker/u8:1+flush-179:007:15:200
312089699116110,4cyclictest3119176-21kworker/u8:1+events_unbound07:35:210
312089699116108,5cyclictest3155967-21kworker/u8:1+flush-179:009:20:160
312089699116108,5cyclictest3119176-21kworker/u8:1+flush-179:008:00:240
312089699115111,3cyclictest3119176-21kworker/u8:1+flush-179:007:10:220
312089699115103,9cyclictest3157851-21latency_hist09:05:000
312090399114105,6cyclictest3153776-21kworker/u8:0+flush-179:009:15:201
312089699114106,5cyclictest3201301-21kworker/u8:0+events_unbound11:25:220
312090399113105,6cyclictest3169020-21kworker/u8:0+flush-179:009:50:211
312090399113101,9cyclictest3175346-21latency_hist10:00:001
312089699113107,5cyclictest3185197-21kworker/u8:3+events_unbound10:35:260
312089699113106,5cyclictest3119176-21kworker/u8:1+flush-179:007:55:220
312089699112105,5cyclictest3155967-21kworker/u8:1+flush-179:009:25:140
312090399111102,6cyclictest3155967-21kworker/u8:1+events_unbound09:20:241
312089699111103,6cyclictest3220404-21kworker/u8:0+flush-179:012:35:170
312089699111103,6cyclictest3164251-21kworker/u8:2+flush-179:009:30:170
31209039910898,7cyclictest3202920-21kworker/u8:1+flush-179:011:35:011
31209039910898,7cyclictest3202920-21kworker/u8:1+flush-179:011:35:011
31209039910896,9cyclictest3222031-21latency_hist12:25:011
31208969910893,5cyclictest3125730-21kworker/u8:0+events_unbound07:25:240
31208969910893,5cyclictest3125730-21kworker/u8:0+events_unbound07:25:230
31209039910696,7cyclictest3206098-21kworker/u8:3+flush-179:011:40:211
31208969910693,10cyclictest3178793-21latency_hist10:10:010
31208969910693,10cyclictest3140337-21apt-get08:10:120
31209039910497,5cyclictest3159468-21kworker/u8:3+events_unbound09:30:011
31209039910496,5cyclictest3169020-21kworker/u8:0+flush-179:010:45:251
31209039910495,7cyclictest3185139-21kworker/u8:2+flush-179:011:00:261
31209039910492,9cyclictest3185197-21kworker/u8:3+flush-179:010:35:221
31208969910499,4cyclictest3202920-21kworker/u8:1+flush-179:011:30:270
31208969910499,4cyclictest3202920-21kworker/u8:1+flush-179:011:30:270
31209039910396,5cyclictest3169020-21kworker/u8:0+flush-179:010:15:231
31209039910188,5cyclictest3193352-21kworker/u8:1+events_unbound11:10:231
31208969910191,7cyclictest3193352-21kworker/u8:1+events_unbound10:55:220
31208969910094,4cyclictest3169020-21kworker/u8:0+flush-179:009:40:240
31208969910092,5cyclictest3120828-21kworker/u8:2+flush-179:007:30:150
31208969910090,7cyclictest3196566-21latency_hist11:05:010
3120896999993,5cyclictest3188498-21kworker/u8:1+events_unbound10:40:220
3120903999891,5cyclictest3206098-21kworker/u8:3+flush-179:012:05:211
3120896999893,3cyclictest3209335-21kworker/u8:2+flush-179:012:00:120
3120896999891,5cyclictest3169020-21kworker/u8:0+flush-179:010:15:220
3120896999879,7cyclictest3140069-21kworker/u8:3+events_unbound08:45:180
3120903999790,5cyclictest3135556-21kworker/u8:0+flush-179:008:00:161
3120903999788,7cyclictest3204520-21latency_hist11:30:011
3120903999788,6cyclictest3181947-21kworker/u8:1+flush-179:010:20:161
3120896999791,5cyclictest3119176-21kworker/u8:1+events_unbound07:45:280
3120903999690,4cyclictest3146484-21kworker/u8:1+flush-179:008:35:221
3120903999686,7cyclictest3206098-21kworker/u8:3+flush-179:011:50:201
3120896999691,3cyclictest3169020-21kworker/u8:0+flush-179:010:10:220
3120903999589,4cyclictest3176664-21kworker/u8:1+flush-179:010:05:251
3120896999585,7cyclictest3162627-21latency_hist09:20:010
3120903999485,6cyclictest3169020-21kworker/u8:0+events_unbound09:45:201
3120903999483,8cyclictest3185139-21kworker/u8:2+flush-179:011:15:151
3120903999482,4cyclictest3120828-21kworker/u8:2+events_unbound07:20:241
3120903999387,4cyclictest3169020-21kworker/u8:0+flush-179:010:10:171
3120903999387,4cyclictest3138474-21kworker/u8:2+flush-179:008:05:231
3120896999388,4cyclictest3201301-21kworker/u8:0+flush-179:011:35:240
3120896999384,7cyclictest3198150-21latency_hist11:10:010
3120896999379,5cyclictest3138474-21kworker/u8:2+events_unbound08:40:170
3120903999275,8cyclictest3140069-21kworker/u8:3+flush-179:008:30:241
3120896999284,6cyclictest3120828-21kworker/u8:2+flush-179:007:20:190
3120903999184,5cyclictest3169020-21kworker/u8:0+flush-179:010:04:551
3120896999186,4cyclictest3169020-21kworker/u8:0+events_unbound10:00:250
3120896999186,4cyclictest3119176-21kworker/u8:1+flush-179:007:40:240
3120896999182,6cyclictest3209300-21latency_hist11:45:010
3120903999085,4cyclictest3120828-21kworker/u8:2+flush-179:007:30:011
3120903999085,4cyclictest3120828-21kworker/u8:2+flush-179:007:30:001
3120903999084,4cyclictest510-21rs:main1
3120903999083,5cyclictest3181947-21kworker/u8:1+flush-179:010:25:221
3120896999082,5cyclictest3140069-21kworker/u8:3+events_unbound08:55:160
3120903998984,4cyclictest3209335-21kworker/u8:2+events_unbound12:00:271
3120903998982,5cyclictest3164251-21kworker/u8:2+flush-179:009:30:241
3120903998982,5cyclictest3138474-21kworker/u8:2+flush-179:008:25:221
3120896998984,4cyclictest3153776-21kworker/u8:0+flush-179:009:05:220
3120896998983,4cyclictest3169020-21kworker/u8:0+events_unbound09:55:280
3120903998883,4cyclictest3140069-21kworker/u8:3+events_unbound08:15:241
3120896998882,4cyclictest3169020-21kworker/u8:0+flush-179:010:45:160
3120896998881,5cyclictest3181947-21kworker/u8:1+events_unbound10:25:230
3120903998778,6cyclictest3193352-21kworker/u8:1+events_unbound10:55:161
3120903998677,6cyclictest3217274-21kworker/u8:1+flush-179:012:10:181
3120903998576,5cyclictest3140069-21kworker/u8:3+events_unbound08:20:151
3120903998478,4cyclictest3140069-21kworker/u8:3+flush-179:008:45:271
3120903998478,4cyclictest3140069-21kworker/u8:3+flush-179:008:10:221
3120903998372,6cyclictest3119176-21kworker/u8:1+flush-179:007:40:191
3120896998377,5cyclictest3206098-21kworker/u8:3+flush-179:011:50:230
3120903998267,11cyclictest1213033-21systemd-journal09:05:191
3120896998277,4cyclictest3193352-21kworker/u8:1+flush-179:011:10:240
3120896998274,6cyclictest3217274-21kworker/u8:1+flush-179:012:20:210
3120903998175,4cyclictest3193352-21kworker/u8:1+flush-179:011:10:001
3120903998070,7cyclictest3209286-21kworker/u8:1+flush-179:011:45:201
3120896998075,4cyclictest3209286-21kworker/u8:1+flush-179:011:45:230
3120903997972,5cyclictest3164251-21kworker/u8:2+events_unbound09:35:161
3120903997870,5cyclictest3156302-21gpgv09:00:011
3120896997772,3cyclictest3217274-21kworker/u8:1+flush-179:012:15:160
3120903997667,7cyclictest3185197-21kworker/u8:3+events_unbound10:30:241
3120896997666,7cyclictest3202933-21latency_hist11:25:010
3120903997567,5cyclictest3209335-21kworker/u8:2+events_unbound12:15:141
3120903997566,7cyclictest3170583-21latency_hist09:45:011
3120903997463,9cyclictest3212725-21apt-get11:55:131
3120903997366,5cyclictest3185139-21kworker/u8:2+flush-179:011:20:191
3120903997365,5cyclictest3138474-21kworker/u8:2+flush-179:008:40:241
3120903997364,7cyclictest3153776-21kworker/u8:0+events_unbound09:10:251
3120896997368,4cyclictest3185139-21kworker/u8:2+events_unbound10:30:200
3120903997259,11cyclictest3220404-21kworker/u8:0+flush-179:012:35:211
3120903997165,4cyclictest3135556-21kworker/u8:0+events_unbound07:55:241
3120896997165,4cyclictest3185139-21kworker/u8:2+flush-179:011:15:160
3120903997064,4cyclictest3120828-21kworker/u8:2+flush-179:007:30:221
3120896996956,5cyclictest3220404-21kworker/u8:0+events_unbound12:25:190
3120903996863,3cyclictest3140069-21kworker/u8:3+flush-179:008:50:161
3120903996857,9cyclictest3222544-21apt-get12:25:121
3120903996757,6cyclictest3119176-21kworker/u8:1+events_unbound07:45:181
3120903996559,4cyclictest3119176-21kworker/u8:1+events_unbound07:15:211
3120896996560,4cyclictest3164251-21kworker/u8:2+flush-179:009:35:270
3120903996054,4cyclictest3220404-21kworker/u8:0+events_unbound12:30:191
3120896995952,6cyclictest3119176-21kworker/u8:1+events_unbound07:10:030
3120903995853,3cyclictest3119176-21kworker/u8:1+events_unbound07:50:161
3120903995853,3cyclictest3119176-21kworker/u8:1+events_unbound07:50:151
4577091500,13ptp4l441ktimers/307:09:563
3120903995045,4cyclictest3153776-21kworker/u8:0+flush-179:009:00:211
3120903994842,5cyclictest3188498-21kworker/u8:1+events_unbound10:40:021
3120906994537,6cyclictest3186760-21turbostat10:35:003
4577091410,5ptp4l431rcuc/310:05:003
3120906994038,1cyclictest0-21swapper/307:39:593
3120906994034,5cyclictest3141678-21turbostat08:15:003
312090699400,4cyclictest3133722-21turbostat07:50:013
312090699400,1cyclictest0-21swapper/310:06:583
3120904994037,2cyclictest0-21swapper/211:13:592
3120904993936,2cyclictest0-21swapper/211:01:592
312090499390,36cyclictest0-21swapper/207:14:562
3120904993829,7cyclictest0-21swapper/207:50:592
3120904993829,7cyclictest0-21swapper/207:50:592
3120906993731,5cyclictest0-21swapper/308:58:593
312090699370,36cyclictest0-21swapper/309:45:593
3120904993734,2cyclictest0-21swapper/210:31:592
3120904993734,2cyclictest0-21swapper/209:23:582
3120904993733,2cyclictest0-21swapper/211:30:592
3120904993733,2cyclictest0-21swapper/211:30:592
312090499370,35cyclictest0-21swapper/211:50:582
312090499370,35cyclictest0-21swapper/211:39:002
312090499370,35cyclictest0-21swapper/207:56:582
3120906993634,1cyclictest0-21swapper/307:11:593
3120906993633,2cyclictest0-21swapper/311:32:593
3120906993633,2cyclictest0-21swapper/311:32:593
312090699360,35cyclictest0-21swapper/311:21:593
312090699360,35cyclictest0-21swapper/307:40:583
312090699360,35cyclictest0-21swapper/307:31:003
3120904993633,2cyclictest0-21swapper/212:00:592
3120904993633,2cyclictest0-21swapper/208:38:592
3120904993633,2cyclictest0-21swapper/208:21:592
3120904993633,2cyclictest0-21swapper/207:36:592
3120904993633,2cyclictest0-21swapper/207:34:552
3120904993633,2cyclictest0-21swapper/207:17:592
312090499360,1cyclictest0-21swapper/209:40:002
312090499360,1cyclictest0-21swapper/209:06:582
312090699350,1cyclictest0-21swapper/311:11:593
312090699350,1cyclictest0-21swapper/308:47:593
312090699350,1cyclictest0-21swapper/307:58:003
3120904993532,2cyclictest0-21swapper/208:30:592
3120906993432,1cyclictest0-21swapper/308:08:593
3120904993431,2cyclictest0-21swapper/210:14:552
3120904993431,2cyclictest0-21swapper/209:56:592
3120906993330,2cyclictest0-21swapper/308:41:593
312090699330,27cyclictest0-21swapper/312:05:133
3120904993330,2cyclictest0-21swapper/212:21:592
3120904993330,2cyclictest0-21swapper/212:11:592
3120904993330,2cyclictest0-21swapper/211:20:592
3120904993330,2cyclictest0-21swapper/210:45:592
3120904993330,2cyclictest0-21swapper/207:29:002
3120904993330,2cyclictest0-21swapper/207:29:002
3120904993324,2cyclictest0-21swapper/207:40:132
312090499330,31cyclictest0-21swapper/211:15:592
3120906993228,3cyclictest3173757-21turbostat09:55:003
312090699320,2cyclictest0-21swapper/311:50:133
312090699320,26cyclictest0-21swapper/307:15:133
3120904993229,2cyclictest0-21swapper/210:01:002
312090499320,2cyclictest0-21swapper/208:46:592
3120906993129,1cyclictest0-21swapper/310:28:593
3120906993124,6cyclictest0-21swapper/312:23:003
312090699310,30cyclictest0-21swapper/307:20:593
312090699310,27cyclictest0-21swapper/308:30:133
3120904993128,2cyclictest0-21swapper/210:57:592
312090499310,29cyclictest0-21swapper/208:10:592
4577091300,7ptp4l441ktimers/308:15:023
4577091300,6ptp4l441ktimers/312:15:013
3120906993028,1cyclictest0-21swapper/312:18:593
312090699300,28cyclictest0-21swapper/309:00:013
3120904993027,2cyclictest0-21swapper/209:00:022
3120904993027,2cyclictest0-21swapper/208:40:162
3120904993027,2cyclictest0-21swapper/208:15:122
3120904993021,2cyclictest0-21swapper/208:53:582
312090499300,28cyclictest0-21swapper/212:05:132
4577091290,6ptp4l441ktimers/312:35:013
4577091290,6ptp4l441ktimers/310:55:013
4577091290,6ptp4l441ktimers/310:15:013
4577091290,6ptp4l441ktimers/309:15:003
3120906992927,1cyclictest0-21swapper/309:20:153
3120906992927,1cyclictest0-21swapper/308:35:143
3120906992927,1cyclictest0-21swapper/307:51:593
3120906992927,1cyclictest0-21swapper/307:51:583
3120906992923,5cyclictest0-21swapper/310:24:553
312090699290,28cyclictest0-21swapper/309:35:143
312090699290,27cyclictest0-21swapper/308:25:123
3120904992926,2cyclictest0-21swapper/211:55:152
3120904992926,2cyclictest0-21swapper/211:41:592
3120904992926,2cyclictest0-21swapper/210:25:132
3120904992926,2cyclictest0-21swapper/209:40:132
3120904992925,2cyclictest0-21swapper/211:25:592
3120904992923,1cyclictest0-21swapper/212:40:002
3120904992920,2cyclictest0-21swapper/210:20:592
312090499290,2cyclictest0-21swapper/212:15:132
312090499290,27cyclictest0-21swapper/210:40:162
312090499290,27cyclictest0-21swapper/210:35:142
312090499290,27cyclictest0-21swapper/210:05:012
312090499290,27cyclictest0-21swapper/208:25:142
4577091280,7ptp4l441ktimers/309:09:553
4577091280,6ptp4l61490irq/134-eno1-TxRx-011:40:003
4577091280,6ptp4l441ktimers/310:44:553
4577091280,6ptp4l441ktimers/310:20:003
4577091280,6ptp4l441ktimers/310:00:013
4577091280,6ptp4l441ktimers/309:30:013
4577091280,5ptp4l441ktimers/308:05:013
3120906992826,1cyclictest0-21swapper/311:00:143
3120906992826,1cyclictest0-21swapper/310:45:133
312090699280,2cyclictest0-21swapper/311:15:143
312090699280,27cyclictest0-21swapper/307:25:143
312090699280,27cyclictest0-21swapper/307:25:133
312090699280,26cyclictest0-21swapper/310:35:143
3120904992825,2cyclictest0-21swapper/212:25:012
3120904992825,2cyclictest0-21swapper/209:10:142
312090499280,26cyclictest0-21swapper/210:17:002
312090499280,26cyclictest0-21swapper/209:35:002
4577091270,5ptp4l61490irq/134-eno1-TxRx-012:30:003
4577091270,5ptp4l61490irq/134-eno1-TxRx-011:59:563
4577091270,5ptp4l61490irq/134-eno1-TxRx-011:45:003
4577091270,5ptp4l441ktimers/311:09:563
4577091270,5ptp4l441ktimers/309:34:553
4577091270,4ptp4l441ktimers/311:50:013
3120906992725,1cyclictest0-21swapper/309:40:133
312090699270,26cyclictest0-21swapper/308:51:593
3120904992724,2cyclictest0-21swapper/209:17:592
3120904992724,2cyclictest0-21swapper/207:46:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-012:39:553
4577091260,5ptp4l441ktimers/312:04:543
4577091260,5ptp4l441ktimers/310:59:563
3120904992623,2cyclictest0-21swapper/210:54:552
312090499260,24cyclictest0-21swapper/211:46:592
312090499260,24cyclictest0-21swapper/208:05:592
3120903992622,3cyclictest3120911-21sort07:10:031
4577091250,5ptp4l441ktimers/309:19:553
3120904992523,1cyclictest0-21swapper/209:29:002
3120904992522,2cyclictest0-21swapper/212:33:592
3120904992522,2cyclictest0-21swapper/211:09:562
3120904992421,2cyclictest0-21swapper/208:02:592
4577091230,4ptp4l61490irq/134-eno1-TxRx-008:24:553
3120904992320,2cyclictest0-21swapper/209:52:582
3120904992219,2cyclictest0-21swapper/209:48:002
3120906992119,1cyclictest0-21swapper/311:29:593
3120904992118,2cyclictest0-21swapper/207:20:592
3120904991714,2cyclictest0-21swapper/208:55:592
31209049930,2cyclictest0-21swapper/207:10:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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