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2026-09-07 - 18:18
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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 Sep 07, 2026 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
402609099162148,10cyclictest4067667-21latency_hist09:20:020
402609099162148,10cyclictest4067667-21latency_hist09:20:010
402609099157142,5cyclictest4014394-21kworker/u8:0+events_unbound07:10:020
402609099153141,5cyclictest4082485-21kworker/u8:2+events_unbound10:15:000
402609099153141,5cyclictest4082485-21kworker/u8:2+events_unbound10:15:000
402609099150138,8cyclictest4043793-21latency_hist08:05:000
402609099147140,5cyclictest4014394-21kworker/u8:0+flush-179:007:40:200
402609099147122,22cyclictest4059692-21latency_hist08:55:020
402609099146127,9cyclictest4105012-21kworker/u8:3+events_unbound11:20:010
402609399143135,6cyclictest4034246-21kworker/u8:3+events_unbound07:45:011
402609099141125,8cyclictest4125948-21kworker/u8:2+events_unbound12:24:590
402609099140130,6cyclictest4014394-21kworker/u8:0+events_unbound07:25:240
402609399139129,8cyclictest4075876-21latency_hist09:45:021
402609399135130,4cyclictest4042462-21kworker/u8:2+events_unbound08:15:251
402609099135121,10cyclictest1213033-21systemd-journal09:10:010
402609399134127,5cyclictest4064506-21kworker/u8:3+events_unbound09:20:011
402609399134127,5cyclictest4064506-21kworker/u8:3+events_unbound09:20:011
402609099134121,6cyclictest4040052-21kworker/u8:0+events_unbound08:30:180
402609399132125,4cyclictest4040052-21kworker/u8:0+events_unbound08:35:211
402609399132119,4cyclictest4085661-21kworker/u8:0+events_unbound10:55:191
402609099131124,4cyclictest4082501-21latency_hist10:05:010
402609399129116,10cyclictest4092050-21apt-get10:35:031
402609099129123,4cyclictest4076923-21kworker/u8:1+flush-179:009:55:220
402609099128122,4cyclictest4037969-21kworker/u8:1+flush-179:007:50:210
402609399127116,9cyclictest4064503-21true09:10:001
402609399127111,9cyclictest4111388-21kworker/u8:1+events_unbound11:40:001
402609099127121,4cyclictest4100304-21kworker/u8:2+flush-179:011:05:260
402609099126113,4cyclictest4085661-21kworker/u8:0+events_unbound11:05:000
402609099125118,4cyclictest4095728-21kworker/u8:1+flush-179:010:45:240
402609099124118,4cyclictest4074528-21kworker/u8:4+events_unbound09:40:230
402609099123112,8cyclictest4042462-21kworker/u8:2+flush-179:008:25:000
402609099123110,5cyclictest4074528-21kworker/u8:4+events_unbound09:45:210
402609399122117,4cyclictest4074251-21kworker/u8:0+flush-179:009:50:221
402609399122112,4cyclictest4023476-21kworker/u8:1+events_unbound07:15:251
402609099122115,5cyclictest4014394-21kworker/u8:0+events_unbound07:20:010
402609099122111,7cyclictest4105012-21kworker/u8:3+events_unbound11:30:180
402609399121115,4cyclictest4040052-21kworker/u8:0+flush-179:008:05:231
402609399120113,4cyclictest4085661-21kworker/u8:0+flush-179:011:10:251
402609099120108,9cyclictest1213033-21systemd-journal11:45:010
402609399119114,4cyclictest4014394-21kworker/u8:0+events_unbound07:39:591
402609099119113,4cyclictest4064506-21kworker/u8:3+flush-179:009:30:230
402609399118113,3cyclictest4023476-21kworker/u8:1+events_unbound07:30:241
402609399118112,4cyclictest4064449-21kworker/u8:2+events_unbound09:10:171
402609099118112,4cyclictest4037969-21kworker/u8:1+flush-179:007:50:000
402609099118107,8cyclictest4064506-21kworker/u8:3+events_unbound09:20:210
402609099118107,8cyclictest4064506-21kworker/u8:3+events_unbound09:20:200
402609099118106,9cyclictest4045378-21latency_hist08:10:010
402609399117111,4cyclictest4042462-21kworker/u8:2+flush-179:008:20:211
402609099117112,4cyclictest4040052-21kworker/u8:0+events_unbound09:00:240
402609099117102,5cyclictest4125045-21kworker/u8:1+events_unbound12:30:230
402609399116110,4cyclictest4076923-21kworker/u8:1+flush-179:009:55:191
402609399116104,5cyclictest4105012-21kworker/u8:3+events_unbound11:15:191
402609099116110,4cyclictest4064449-21kworker/u8:2+flush-179:009:15:000
402609099116109,4cyclictest4103776-21kworker/u8:1+flush-179:011:10:220
402609099116108,5cyclictest4089104-21kworker/u8:1+flush-179:010:30:210
402609099116108,5cyclictest4089104-21kworker/u8:1+flush-179:010:30:200
402609099116107,6cyclictest4064506-21kworker/u8:3+events_unbound09:25:200
402609099116105,7cyclictest4116411-21kworker/u8:2+flush-179:011:55:210
402609099116104,6cyclictest4014394-21kworker/u8:0+events_unbound07:35:000
402609099116101,5cyclictest4085661-21kworker/u8:0+flush-179:011:25:010
402609099115104,4cyclictest4064506-21kworker/u8:3+events_unbound09:35:250
402609399114108,4cyclictest4064449-21kworker/u8:2+flush-179:009:15:211
402609399114108,4cyclictest4064449-21kworker/u8:2+flush-179:009:15:211
402609399114104,7cyclictest4034246-21kworker/u8:3+events_unbound07:45:191
402609099114108,4cyclictest4054970-21kworker/u8:2+flush-179:008:55:150
402609099114105,6cyclictest4111388-21kworker/u8:1+events_unbound11:50:250
402609099113105,6cyclictest4125948-21kworker/u8:2+flush-179:012:25:220
402609399111106,4cyclictest4116411-21kworker/u8:2+events_unbound11:55:241
402609399111105,4cyclictest4067811-21kworker/u8:1+flush-179:009:25:271
402609399111103,6cyclictest4090709-21apt-get10:30:111
402609399111103,6cyclictest4090709-21apt-get10:30:111
40260909911196,5cyclictest4040052-21kworker/u8:0+events_unbound08:25:180
402609099111103,5cyclictest4085661-21kworker/u8:0+flush-179:011:35:150
402609099111102,7cyclictest4074251-21kworker/u8:0+events_unbound10:05:150
402609399110106,3cyclictest4064506-21kworker/u8:3+flush-179:009:30:231
402609399110104,4cyclictest4095728-21kworker/u8:1+flush-179:010:45:211
402609099110103,5cyclictest4116411-21kworker/u8:2+events_unbound12:10:010
402609099110100,7cyclictest4040052-21kworker/u8:0+events_unbound07:55:160
402609399109104,4cyclictest4040052-21kworker/u8:0+flush-179:007:55:231
402609399109103,4cyclictest4085661-21kworker/u8:0+flush-179:011:25:211
402609399109103,4cyclictest4074251-21kworker/u8:0+events_unbound10:05:231
402609399108102,5cyclictest4084075-21kworker/u8:1+events_unbound10:10:271
402609399108102,5cyclictest4084075-21kworker/u8:1+events_unbound10:10:261
40260909910899,7cyclictest1213033-21systemd-journal07:14:590
40260939910794,10cyclictest4014394-21kworker/u8:0+flush-179:007:25:171
402609099107100,5cyclictest4092082-21kworker/u8:2+events_unbound10:35:240
402609399106100,4cyclictest4074251-21kworker/u8:0+events_unbound10:00:211
40260909910697,6cyclictest4117794-21kworker/u8:3+events_unbound12:15:190
40260909910696,7cyclictest4117794-21kworker/u8:3+events_unbound12:10:030
40260909910693,10cyclictest510-21rs:main0
402609399105100,4cyclictest4125948-21kworker/u8:2+flush-179:012:25:241
402609399105100,4cyclictest4125045-21kworker/u8:1+events_unbound12:30:241
40260909910593,9cyclictest4097332-21apt-get10:50:160
40260909910497,4cyclictest4127626-21kworker/u8:3+events_unbound12:35:180
40260909910493,6cyclictest4023476-21kworker/u8:1+flush-179:007:20:180
402609099104100,3cyclictest4040052-21kworker/u8:0+flush-179:008:40:270
402609099104100,3cyclictest4040052-21kworker/u8:0+flush-179:008:40:260
40260939910398,3cyclictest4111388-21kworker/u8:1+flush-179:011:45:161
40260939910393,4cyclictest4085661-21kworker/u8:0+events_unbound10:15:181
40260909910396,4cyclictest4085661-21kworker/u8:0+flush-179:010:15:220
40260939910297,3cyclictest4040052-21kworker/u8:0+events_unbound09:00:211
40260939910197,3cyclictest4085661-21kworker/u8:0+events_unbound11:00:261
40260939910196,3cyclictest4040052-21kworker/u8:0+events_unbound08:30:211
40260939910195,4cyclictest4125948-21kworker/u8:2+flush-179:012:20:231
40260939910195,4cyclictest4111388-21kworker/u8:1+flush-179:011:40:201
40260939910095,4cyclictest4105012-21kworker/u8:3+events_unbound11:30:201
40260939910095,4cyclictest4076923-21kworker/u8:1+flush-179:009:45:251
40260939910094,5cyclictest4100304-21kworker/u8:2+flush-179:011:05:271
40260939910086,11cyclictest1213033-21systemd-journal11:50:171
4026093999994,4cyclictest4040052-21kworker/u8:0+flush-179:008:25:231
4026093999892,4cyclictest4037969-21kworker/u8:1+events_unbound08:00:141
4026090999885,5cyclictest4116411-21kworker/u8:2+events_unbound12:00:140
4026090999790,5cyclictest4111388-21kworker/u8:1+events_unbound11:45:260
4026090999790,4cyclictest4074251-21kworker/u8:0+flush-179:009:50:230
4026093999691,3cyclictest4097121-21kworker/u8:3+events_unbound10:50:191
4026093999589,4cyclictest4127626-21kworker/u8:3+flush-179:012:35:161
4026090999581,11cyclictest1213033-21systemd-journal08:50:000
4026093999488,4cyclictest4023476-21kworker/u8:1+flush-179:007:20:221
4026090999488,4cyclictest4040052-21kworker/u8:0+flush-179:008:35:180
4026093999387,4cyclictest4051192-21kworker/u8:1+events_unbound08:45:161
4026093999378,12cyclictest1213033-21systemd-journal08:44:591
4026093999378,12cyclictest1213033-21systemd-journal08:44:591
4026093999287,3cyclictest4117794-21kworker/u8:3+flush-179:012:05:201
4026090999286,4cyclictest4092082-21kworker/u8:2+events_unbound10:40:220
4026093999186,4cyclictest4105012-21kworker/u8:3+flush-179:011:20:241
4026090999185,4cyclictest4085661-21kworker/u8:0+flush-179:010:20:180
4026090999185,4cyclictest4042462-21kworker/u8:2+flush-179:008:15:200
4026093998883,4cyclictest4117794-21kworker/u8:3+flush-179:012:10:261
4026093998881,5cyclictest4042462-21kworker/u8:2+flush-179:008:10:211
4026090998882,4cyclictest4085708-21kworker/u8:3+events_unbound10:25:230
4026090998877,6cyclictest4085661-21kworker/u8:0+events_unbound10:55:130
4026090998876,5cyclictest4085661-21kworker/u8:0+events_unbound11:25:130
4026093998681,4cyclictest4054970-21kworker/u8:2+flush-179:008:55:251
4026093998579,4cyclictest4125045-21kworker/u8:1+events_unbound12:15:211
4026093998176,4cyclictest4037969-21kworker/u8:1+events_unbound07:50:211
4026090998171,4cyclictest4042462-21kworker/u8:2+events_unbound08:10:230
4026093998069,8cyclictest4116411-21kworker/u8:2+flush-179:012:00:211
4026093997867,8cyclictest4095491-21latency_hist10:45:011
4026093997669,5cyclictest4085661-21kworker/u8:0+events_unbound10:20:141
4026093997065,3cyclictest4040052-21kworker/u8:0+flush-179:008:50:181
402609699670,59cyclictest0-21swapper/309:00:583
402609499660,63cyclictest0-21swapper/211:01:592
4026096996462,1cyclictest0-21swapper/307:55:593
4026096996361,1cyclictest0-21swapper/311:57:593
4026093996255,5cyclictest4067811-21kworker/u8:1+flush-179:009:40:001
4026094995955,3cyclictest0-21swapper/208:57:592
4026093995653,2cyclictest4085661-21kworker/u8:0+events_unbound10:25:161
4026093995447,6cyclictest4014394-21kworker/u8:0+flush-179:007:10:221
4026096995250,1cyclictest0-21swapper/308:57:583
4577091490,13ptp4l441ktimers/307:10:023
402609699400,39cyclictest0-21swapper/308:02:583
4026094993935,2cyclictest0-21swapper/210:15:582
402609499380,36cyclictest0-21swapper/209:37:002
402609499380,36cyclictest0-21swapper/208:15:592
402609499380,35cyclictest0-21swapper/208:48:592
4026096993735,2cyclictest0-21swapper/308:24:003
402609699370,36cyclictest0-21swapper/311:24:553
402609699370,36cyclictest0-21swapper/309:16:583
402609699370,36cyclictest0-21swapper/309:16:583
402609699370,1cyclictest0-21swapper/308:09:003
4026094993733,2cyclictest0-21swapper/210:24:002
4577091360,4ptp4l431rcuc/310:25:003
4026096993634,1cyclictest0-21swapper/311:08:593
4026096993634,1cyclictest0-21swapper/309:36:593
4026096993634,1cyclictest0-21swapper/308:48:593
4026096993634,1cyclictest0-21swapper/308:42:593
4026096993634,1cyclictest0-21swapper/308:42:583
402609699360,35cyclictest0-21swapper/310:46:593
402609699360,35cyclictest0-21swapper/309:59:583
4026094993633,2cyclictest0-21swapper/210:51:592
4026094993633,2cyclictest0-21swapper/210:40:592
402609499360,1cyclictest0-21swapper/208:42:592
402609499360,1cyclictest0-21swapper/208:42:582
402609499360,1cyclictest0-21swapper/208:23:592
4026096993532,2cyclictest0-21swapper/308:15:583
4026094993531,2cyclictest0-21swapper/209:53:002
402609499350,1cyclictest0-21swapper/211:08:592
4026094993432,1cyclictest0-21swapper/211:00:002
4026094993431,2cyclictest0-21swapper/209:45:582
4026096993331,1cyclictest0-21swapper/311:02:593
4026094993330,2cyclictest0-21swapper/212:20:592
4026094993330,2cyclictest0-21swapper/211:36:592
4026094993330,2cyclictest0-21swapper/209:05:592
231999320,19rtkit-daemon4025701-21cat07:05:301
4026096993129,1cyclictest0-21swapper/310:15:593
4026096993126,4cyclictest4100291-21turbostat11:00:003
4026094993127,2cyclictest0-21swapper/211:31:002
4026094993127,2cyclictest0-21swapper/211:21:592
4026094993127,2cyclictest0-21swapper/210:05:592
4577091300,8ptp4l441ktimers/309:29:593
4577091300,7ptp4l441ktimers/311:40:003
4577091300,7ptp4l441ktimers/309:25:013
4577091300,7ptp4l441ktimers/309:25:003
4577091300,7ptp4l441ktimers/307:50:003
4577091300,6ptp4l441ktimers/307:30:023
4026096993028,1cyclictest0-21swapper/310:51:593
4026096993027,2cyclictest0-21swapper/307:20:153
4026094993027,2cyclictest0-21swapper/210:35:032
4026094993027,2cyclictest0-21swapper/209:23:002
4026094993027,2cyclictest0-21swapper/209:22:592
4026094993027,2cyclictest0-21swapper/208:35:122
4026094993027,2cyclictest0-21swapper/208:25:142
402609499300,28cyclictest0-21swapper/207:20:152
4577091290,7ptp4l441ktimers/312:30:013
4577091290,7ptp4l441ktimers/307:45:003
4577091290,6ptp4l61490irq/134-eno1-TxRx-012:24:593
4577091290,6ptp4l441ktimers/308:35:003
4577091290,6ptp4l441ktimers/307:20:013
4577091290,5ptp4l61490irq/134-eno1-TxRx-007:55:013
4577091290,5ptp4l441ktimers/311:20:013
4026096992927,1cyclictest0-21swapper/310:40:593
4026096992926,2cyclictest0-21swapper/309:45:593
4026096992926,1cyclictest0-21swapper/309:52:593
402609699290,28cyclictest0-21swapper/310:35:023
402609699290,28cyclictest0-21swapper/308:25:143
402609699290,26cyclictest0-21swapper/309:40:593
4026094992926,2cyclictest0-21swapper/211:10:142
4026094992926,2cyclictest0-21swapper/209:27:592
4026094992926,2cyclictest0-21swapper/207:10:142
402609499290,27cyclictest0-21swapper/211:45:152
402609499290,27cyclictest0-21swapper/209:15:132
402609499290,27cyclictest0-21swapper/209:15:122
402609499290,27cyclictest0-21swapper/208:31:592
402609499290,27cyclictest0-21swapper/207:30:122
4577091280,6ptp4l61490irq/134-eno1-TxRx-011:30:003
4577091280,6ptp4l441ktimers/312:35:013
4577091280,6ptp4l441ktimers/312:19:563
4577091280,6ptp4l441ktimers/312:05:013
4577091280,6ptp4l441ktimers/309:09:553
4577091280,5ptp4l441ktimers/311:44:553
4026096992826,1cyclictest0-21swapper/311:10:143
402609699280,27cyclictest0-21swapper/311:51:593
402609699280,27cyclictest0-21swapper/311:45:143
402609699280,27cyclictest0-21swapper/308:35:123
402609699280,26cyclictest0-21swapper/307:10:133
4026094992825,2cyclictest0-21swapper/208:00:112
4026094992825,2cyclictest0-21swapper/207:55:132
4026094992825,2cyclictest0-21swapper/207:15:002
402609499280,2cyclictest0-21swapper/209:55:012
402609499280,26cyclictest0-21swapper/212:18:002
402609499280,26cyclictest0-21swapper/210:45:132
402609499280,26cyclictest0-21swapper/207:45:122
402609499280,26cyclictest0-21swapper/207:25:592
4577091270,6ptp4l61490irq/134-eno1-TxRx-010:30:013
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:35:013
4577091270,6ptp4l441ktimers/312:10:013
4577091270,6ptp4l441ktimers/310:09:563
4577091270,6ptp4l441ktimers/309:15:003
4577091270,6ptp4l441ktimers/308:54:563
4577091270,5ptp4l441ktimers/310:14:563
4577091270,5ptp4l441ktimers/310:14:563
4577091270,5ptp4l441ktimers/308:15:013
4026094992725,1cyclictest0-21swapper/210:14:582
4026094992725,1cyclictest0-21swapper/210:14:582
402609499270,25cyclictest0-21swapper/210:03:592
402609499270,24cyclictest0-21swapper/210:33:002
402609499270,24cyclictest0-21swapper/210:32:592
402609499270,24cyclictest0-21swapper/209:04:552
402609499270,1cyclictest0-21swapper/212:27:582
402609499270,1cyclictest0-21swapper/211:26:592
402609499270,1cyclictest0-21swapper/209:44:582
4577091260,5ptp4l61490irq/134-eno1-TxRx-011:34:543
4577091260,5ptp4l441ktimers/312:39:553
4577091260,5ptp4l441ktimers/312:14:563
4577091260,5ptp4l441ktimers/307:39:563
4577091260,5ptp4l441ktimers/307:29:553
4026094992623,2cyclictest0-21swapper/207:53:592
4026094992623,2cyclictest0-21swapper/207:40:132
402609499260,2cyclictest0-21swapper/208:50:592
402609499260,24cyclictest0-21swapper/209:12:002
4577091250,5ptp4l61490irq/134-eno1-TxRx-010:34:563
4577091250,5ptp4l61490irq/134-eno1-TxRx-010:34:553
4026096992522,2cyclictest0-21swapper/310:03:593
4026094992522,2cyclictest0-21swapper/212:36:592
402609499240,1cyclictest0-21swapper/211:59:592
4026094992320,2cyclictest0-21swapper/211:19:552
4026094992219,2cyclictest0-21swapper/212:13:592
4026094992219,2cyclictest0-21swapper/211:41:592
4026094992219,2cyclictest0-21swapper/209:34:542
4026094992017,2cyclictest0-21swapper/208:06:592
4026094991714,2cyclictest0-21swapper/208:10:132
4026094991613,2cyclictest0-21swapper/210:25:592
4026094991512,2cyclictest0-21swapper/212:03:002
4026094991311,1cyclictest0-21swapper/212:10:002
402609499129,2cyclictest0-21swapper/207:39:002
402609499107,2cyclictest0-21swapper/211:53:582
40260949970,6cyclictest0-21swapper/212:30:072
40260949930,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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