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2026-07-12 - 17:12
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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 Sun Jul 12, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30077499132126,4cyclictest390107-21kworker/u8:0+flush-179:012:30:141
30077099125118,6cyclictest374869-21kworker/u8:2+flush-179:011:20:000
30077099124117,5cyclictest327405-21kworker/u8:2+events_unbound08:35:250
30077099123117,5cyclictest305636-21kworker/u8:2+events_unbound07:55:230
30077099123117,5cyclictest297744-21kworker/u8:0+events_unbound07:10:040
30077499121107,10cyclictest350433-21latency_hist09:40:001
30077099121115,5cyclictest285205-21kworker/u8:3+events_unbound07:15:250
30077499118105,9cyclictest333740-21latency_hist08:50:011
30077099115109,5cyclictest402448-21kworker/u8:2+events_unbound12:30:000
30077499111104,5cyclictest361797-21kworker/u8:3+flush-179:010:15:161
30077099110105,4cyclictest352328-21kworker/u8:3+flush-179:009:50:240
30077099110104,4cyclictest317965-21kworker/u8:0+events_unbound08:25:190
30077099109104,4cyclictest332131-21kworker/u8:0+flush-179:009:15:150
30077099108103,3cyclictest300595-21kworker/u8:1+events_unbound07:35:190
3007709910599,4cyclictest332131-21kworker/u8:0+events_unbound08:50:220
3007709910595,7cyclictest341983-21kworker/u8:1+flush-179:009:30:160
3007709910393,4cyclictest337228-21kworker/u8:3+events_unbound09:05:230
3007749910291,8cyclictest305636-21kworker/u8:2+flush-179:008:00:161
3007709910297,4cyclictest402448-21kworker/u8:2+flush-179:012:30:250
3007709910297,4cyclictest317965-21kworker/u8:0+events_unbound08:30:240
3007709910297,3cyclictest374869-21kworker/u8:2+events_unbound11:00:170
3007749910186,12cyclictest327405-21kworker/u8:2+flush-179:008:35:011
3007709910196,4cyclictest317965-21kworker/u8:0+flush-179:008:05:240
3007709910095,4cyclictest386224-21kworker/u8:1+flush-179:011:50:240
300774999980,8cyclictest390107-21kworker/u8:0+events_unbound12:35:151
300770999994,4cyclictest309080-21kworker/u8:3+events_unbound07:50:260
300770999892,4cyclictest305636-21kworker/u8:2+flush-179:007:30:210
300774999791,4cyclictest387557-21kworker/u8:3+flush-179:011:35:161
300774999789,5cyclictest394438-21kworker/u8:2+flush-179:012:00:161
300774999786,8cyclictest510-21rs:main1
300774999786,8cyclictest510-21rs:main1
300770999792,4cyclictest366664-21kworker/u8:2+events_unbound10:35:260
300770999687,3cyclictest366664-21kworker/u8:2+events_unbound10:40:250
300774999589,4cyclictest300595-21kworker/u8:1+events_unbound07:20:011
300770999589,4cyclictest379647-21kworker/u8:0+events_unbound11:20:030
300774999486,6cyclictest317965-21kworker/u8:0+flush-179:008:30:001
300770999489,4cyclictest394438-21kworker/u8:2+events_unbound12:00:250
300770999489,4cyclictest327405-21kworker/u8:2+flush-179:008:45:250
300770999388,4cyclictest309080-21kworker/u8:3+flush-179:007:45:200
300774999258,2cyclictest0-21swapper/111:04:001
300770999288,3cyclictest332131-21kworker/u8:0+flush-179:009:35:260
300770999288,3cyclictest320723-21kworker/u8:1+events_unbound08:20:230
300770999187,3cyclictest348719-21kworker/u8:2+flush-179:010:00:250
300770999186,4cyclictest327405-21kworker/u8:2+flush-179:008:40:270
300770999181,8cyclictest402448-21kworker/u8:2+flush-179:012:20:160
300774999083,5cyclictest309080-21kworker/u8:3+events_unbound07:45:011
300774999068,16cyclictest317965-21kworker/u8:0+flush-179:008:05:151
300774998980,7cyclictest385985-21latency_hist11:30:001
300770998984,4cyclictest361816-21kworker/u8:4+events_unbound10:50:130
300774998877,8cyclictest1213033-21systemd-journal10:30:011
300770998882,4cyclictest399330-21kworker/u8:1+events_unbound12:10:220
300770998876,9cyclictest322581-21apt-get08:15:110
300770998782,3cyclictest361816-21kworker/u8:4+flush-179:010:30:230
300770998774,3cyclictest397743-21kworker/u8:3+events_unbound12:05:220
300774998642,4cyclictest332131-21kworker/u8:0+events_unbound09:40:021
300770998681,3cyclictest361816-21kworker/u8:4+events_unbound10:25:170
300770998680,4cyclictest386224-21kworker/u8:1+events_unbound11:30:240
300770998677,7cyclictest510-21rs:main0
300774998581,3cyclictest352328-21kworker/u8:3+flush-179:009:50:241
300774998579,4cyclictest366664-21kworker/u8:2+flush-179:010:35:191
300774998579,4cyclictest363407-21kworker/u8:0+flush-179:010:20:181
300774998578,5cyclictest297744-21kworker/u8:0+flush-179:007:10:291
300774998571,11cyclictest1213033-21systemd-journal07:50:011
300774998570,5cyclictest379647-21kworker/u8:0+flush-179:011:20:221
300770998580,4cyclictest350942-21kworker/u8:1+events_unbound09:45:220
300770998576,7cyclictest384655-21apt-get11:25:110
300774998475,6cyclictest340619-21apt-get09:10:111
300770998478,4cyclictest348719-21kworker/u8:2+flush-179:010:05:170
300770998377,4cyclictest348719-21kworker/u8:2+events_unbound09:55:110
300774998275,5cyclictest305636-21kworker/u8:2+flush-179:007:25:121
300770998277,4cyclictest300595-21kworker/u8:1+flush-179:007:20:260
300770998176,3cyclictest390107-21kworker/u8:0+flush-179:011:55:210
300770998173,6cyclictest387830-21apt-get11:35:100
300770998168,4cyclictest374808-21kworker/u8:1+events_unbound10:55:200
300774998071,6cyclictest379647-21kworker/u8:0+events_unbound11:10:201
300774998070,7cyclictest386224-21kworker/u8:1+flush-179:011:45:021
300770998075,3cyclictest348719-21kworker/u8:2+events_unbound10:10:200
300770998075,3cyclictest309080-21kworker/u8:3+flush-179:008:10:160
300770998070,8cyclictest350961-21apt-get09:40:110
300770998069,9cyclictest1213033-21systemd-journal09:25:010
300770998069,9cyclictest1213033-21systemd-journal09:25:010
300774997966,10cyclictest300542-21latency_hist07:10:021
300770997975,3cyclictest363407-21kworker/u8:0+events_unbound10:45:220
300770997873,3cyclictest332131-21kworker/u8:0+flush-179:009:00:200
300774997771,5cyclictest358706-21kworker/u8:1+events_unbound10:15:001
300774997669,4cyclictest327405-21kworker/u8:2+flush-179:008:50:271
300770997671,4cyclictest363407-21kworker/u8:0+events_unbound10:20:270
300770997665,7cyclictest305636-21kworker/u8:2+events_unbound08:00:140
300774997567,6cyclictest305636-21kworker/u8:2+events_unbound07:35:241
300770997570,4cyclictest402448-21kworker/u8:2+events_unbound12:39:570
300770997569,4cyclictest327405-21kworker/u8:2+flush-179:008:55:190
300770997567,7cyclictest386224-21kworker/u8:1+flush-179:011:45:170
300774997468,4cyclictest327405-21kworker/u8:2+flush-179:008:55:151
300774997465,6cyclictest402448-21kworker/u8:2+flush-179:012:20:221
300774997367,4cyclictest399330-21kworker/u8:1+flush-179:012:10:151
300774997367,4cyclictest361816-21kworker/u8:4+flush-179:010:50:251
300774997366,5cyclictest374808-21kworker/u8:1+flush-179:011:05:221
300774997365,6cyclictest332131-21kworker/u8:0+flush-179:009:25:221
300774997357,14cyclictest305636-21kworker/u8:2+flush-179:007:50:261
300770997362,8cyclictest402494-21latency_hist12:20:010
300774997265,5cyclictest397743-21kworker/u8:3+flush-179:012:05:171
300774997262,7cyclictest341983-21kworker/u8:1+flush-179:009:30:201
300774997166,3cyclictest397743-21kworker/u8:3+flush-179:012:15:171
300774997165,4cyclictest305636-21kworker/u8:2+flush-179:007:25:001
300774996962,5cyclictest348719-21kworker/u8:2+flush-179:010:00:001
300770996964,4cyclictest374808-21kworker/u8:1+events_unbound11:05:210
300770996955,10cyclictest312280-21apt-get07:45:000
300774996863,4cyclictest320723-21kworker/u8:1+flush-179:008:15:151
300774996861,5cyclictest386224-21kworker/u8:1+flush-179:011:40:161
300774996858,7cyclictest361816-21kworker/u8:4+flush-179:010:44:591
300770996863,4cyclictest379647-21kworker/u8:0+events_unbound11:10:230
300774996762,4cyclictest363407-21kworker/u8:0+flush-179:010:49:581
300774996759,5cyclictest309080-21kworker/u8:3+events_unbound08:10:271
300774996654,9cyclictest1213033-21systemd-journal08:25:011
300774996560,3cyclictest348719-21kworker/u8:2+events_unbound10:05:151
300774996559,4cyclictest379647-21kworker/u8:0+flush-179:011:30:201
300774996557,5cyclictest348719-21kworker/u8:2+flush-179:010:00:151
300774996456,6cyclictest327405-21kworker/u8:2+flush-179:008:40:211
300770996460,3cyclictest332131-21kworker/u8:0+flush-179:009:13:280
300774996354,6cyclictest339034-21apt-get09:05:111
300774996353,4cyclictest361816-21kworker/u8:4+events_unbound10:30:281
300770996355,6cyclictest307458-21latency_hist07:30:010
300774996256,4cyclictest348719-21kworker/u8:2+events_unbound09:45:241
300774996256,4cyclictest305636-21kworker/u8:2+flush-179:007:30:171
300774996255,4cyclictest396103-21latency_hist12:00:021
300770996254,3cyclictest341983-21kworker/u8:1+events_unbound09:26:370
300770996157,3cyclictest361816-21kworker/u8:4+flush-179:010:18:420
300774995952,5cyclictest390107-21kworker/u8:0+flush-179:011:50:161
300774995949,8cyclictest1213033-21systemd-journal09:20:011
300774995949,4cyclictest374808-21kworker/u8:1+events_unbound10:55:251
300776995854,2cyclictest0-21swapper/308:56:593
300774995448,4cyclictest332131-21kworker/u8:0+flush-179:009:00:161
300774995146,3cyclictest327405-21kworker/u8:2+flush-179:008:35:211
4577091500,13ptp4l441ktimers/307:10:013
300774995046,3cyclictest404315-21kworker/u8:1+flush-179:012:25:191
30077599430,2cyclictest0-21swapper/211:05:582
300774994337,4cyclictest374869-21kworker/u8:2+flush-179:011:15:221
300776994240,1cyclictest0-21swapper/311:16:593
300776994240,1cyclictest0-21swapper/310:19:553
300774994035,4cyclictest305636-21kworker/u8:2+flush-179:007:55:171
30077699390,4cyclictest396109-21turbostat12:00:013
300775993937,1cyclictest0-21swapper/210:54:582
300776993830,6cyclictest357085-21turbostat09:59:593
300775993835,2cyclictest0-21swapper/210:08:592
30077599380,35cyclictest0-21swapper/211:35:002
30077599380,35cyclictest0-21swapper/210:30:012
30077599380,35cyclictest0-21swapper/209:49:592
300776993731,5cyclictest381209-21turbostat11:15:013
300775993734,2cyclictest0-21swapper/212:07:592
300775993734,2cyclictest0-21swapper/208:23:592
30077599370,35cyclictest0-21swapper/210:18:592
30077599370,35cyclictest0-21swapper/209:17:592
4577091360,28ptp4l61490irq/134-eno1-TxRx-011:45:143
300776993634,1cyclictest0-21swapper/309:52:593
300776993634,1cyclictest0-21swapper/309:40:583
300776993634,1cyclictest0-21swapper/309:24:553
300776993634,1cyclictest0-21swapper/309:24:553
300776993634,1cyclictest0-21swapper/308:01:593
30077699360,35cyclictest0-21swapper/312:25:583
30077699360,35cyclictest0-21swapper/311:44:003
300775993634,1cyclictest0-21swapper/209:10:002
300775993633,2cyclictest0-21swapper/211:17:002
300775993632,2cyclictest0-21swapper/207:36:592
30077599360,1cyclictest0-21swapper/210:15:002
300776993533,1cyclictest0-21swapper/307:42:593
300776993532,2cyclictest0-21swapper/311:34:003
300775993533,1cyclictest0-21swapper/212:30:002
30077599350,1cyclictest0-21swapper/211:40:582
300776993432,1cyclictest0-21swapper/311:54:583
300775993431,2cyclictest0-21swapper/211:23:582
300775993431,2cyclictest0-21swapper/209:29:562
300776993331,1cyclictest0-21swapper/311:03:593
300776993331,1cyclictest0-21swapper/310:26:593
300775993330,2cyclictest0-21swapper/212:33:592
300775993330,2cyclictest0-21swapper/212:19:542
300775993330,2cyclictest0-21swapper/208:53:592
300776993230,1cyclictest0-21swapper/310:13:593
300775993230,1cyclictest0-21swapper/207:19:592
300776993129,1cyclictest0-21swapper/307:40:003
300775993128,2cyclictest0-21swapper/212:13:592
300775993128,2cyclictest0-21swapper/210:34:002
300775993128,2cyclictest0-21swapper/207:59:552
300775993128,2cyclictest0-21swapper/207:33:592
30077599310,29cyclictest0-21swapper/212:20:132
30077699300,28cyclictest0-21swapper/308:20:023
30077699300,26cyclictest0-21swapper/307:55:133
300775993028,1cyclictest0-21swapper/211:05:002
300775993028,1cyclictest0-21swapper/210:24:552
300775993028,1cyclictest0-21swapper/207:28:002
300775993027,2cyclictest0-21swapper/212:00:132
300775993027,2cyclictest0-21swapper/207:24:552
30077599300,2cyclictest0-21swapper/208:00:132
30077599300,28cyclictest0-21swapper/211:40:022
30077599300,1cyclictest0-21swapper/207:14:582
4577091290,7ptp4l441ktimers/308:45:013
4577091290,7ptp4l441ktimers/307:15:003
4577091290,6ptp4l441ktimers/309:30:003
300776992927,1cyclictest0-21swapper/312:15:133
300776992927,1cyclictest0-21swapper/311:29:553
300776992927,1cyclictest0-21swapper/311:20:583
300776992927,1cyclictest0-21swapper/309:49:593
300776992927,1cyclictest0-21swapper/309:15:143
300776992925,3cyclictest0-21swapper/308:50:023
30077699290,28cyclictest0-21swapper/310:20:153
30077699290,28cyclictest0-21swapper/310:05:143
30077699290,28cyclictest0-21swapper/308:45:133
30077699290,27cyclictest0-21swapper/312:10:133
30077699290,27cyclictest0-21swapper/308:35:143
30077699290,27cyclictest0-21swapper/307:25:123
300775992927,1cyclictest0-21swapper/210:00:132
300775992926,2cyclictest0-21swapper/210:55:142
300775992926,2cyclictest0-21swapper/209:35:022
300775992926,2cyclictest0-21swapper/208:25:132
300775992926,2cyclictest0-21swapper/207:45:122
300775992926,2cyclictest0-21swapper/207:41:002
30077599290,27cyclictest0-21swapper/211:25:122
30077599290,27cyclictest0-21swapper/210:45:132
30077599290,27cyclictest0-21swapper/208:19:592
30077599290,27cyclictest0-21swapper/208:05:032
30077599290,27cyclictest0-21swapper/207:50:132
4577091280,6ptp4l61490irq/134-eno1-TxRx-010:40:003
4577091280,6ptp4l441ktimers/311:00:003
300776992826,1cyclictest0-21swapper/312:35:133
300776992826,1cyclictest0-21swapper/309:10:593
300776992826,1cyclictest0-21swapper/307:45:023
300776992825,2cyclictest0-21swapper/311:35:123
300776992825,2cyclictest0-21swapper/309:40:023
300776992825,2cyclictest0-21swapper/308:05:013
30077699280,27cyclictest0-21swapper/311:05:133
30077699280,26cyclictest0-21swapper/307:20:143
300775992825,2cyclictest0-21swapper/211:10:132
300775992825,2cyclictest0-21swapper/210:35:012
300775992825,2cyclictest0-21swapper/208:39:552
30077599280,26cyclictest0-21swapper/209:55:122
30077599280,26cyclictest0-21swapper/209:40:032
30077599280,26cyclictest0-21swapper/209:00:142
4577091270,6ptp4l61490irq/134-eno1-TxRx-007:55:013
4577091270,6ptp4l441ktimers/308:30:023
4577091270,6ptp4l441ktimers/307:19:553
300776992725,1cyclictest0-21swapper/312:23:583
300776992725,1cyclictest0-21swapper/310:41:593
300776992725,1cyclictest0-21swapper/308:30:133
30077699270,26cyclictest0-21swapper/308:15:123
300775992724,2cyclictest0-21swapper/208:45:582
300770992723,3cyclictest300542-21latency_hist07:10:020
4577091260,6ptp4l61490irq/134-eno1-TxRx-012:35:013
4577091260,5ptp4l441ktimers/310:50:003
4577091260,5ptp4l441ktimers/310:05:013
4577091260,5ptp4l441ktimers/309:35:013
300776992624,1cyclictest0-21swapper/309:02:593
300776992624,1cyclictest0-21swapper/307:30:583
300775992624,1cyclictest0-21swapper/209:34:592
4577091250,5ptp4l441ktimers/312:09:563
4577091250,5ptp4l441ktimers/310:34:553
4577091250,4ptp4l441ktimers/312:05:023
300776992523,1cyclictest0-21swapper/310:52:593
300776992523,1cyclictest0-21swapper/309:08:593
30077699250,24cyclictest0-21swapper/308:11:593
300775992522,2cyclictest0-21swapper/208:56:592
30077599250,2cyclictest0-21swapper/210:41:592
30077599250,24cyclictest0-21swapper/209:23:592
30077599250,24cyclictest0-21swapper/209:23:592
300775992422,1cyclictest0-21swapper/211:47:002
300775992422,1cyclictest0-21swapper/208:14:582
300775992421,2cyclictest0-21swapper/209:50:592
300775992321,1cyclictest0-21swapper/208:40:122
300775992219,2cyclictest0-21swapper/211:55:012
300775992118,2cyclictest0-21swapper/208:33:002
300775991917,1cyclictest0-21swapper/212:00:002
300775991916,2cyclictest0-21swapper/212:39:562
300775991512,2cyclictest0-21swapper/209:10:592
3007759930,2cyclictest0-21swapper/207:10:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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