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2026-05-28 - 23:42
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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 May 28, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
399362099124102,19cyclictest4037385-21apt-get09:25:140
39936239910490,10cyclictest4079272-21latency_hist11:35:011
39936239910396,4cyclictest4053316-21kworker/u8:2+events_unbound11:00:231
39936239910394,6cyclictest4082709-21kworker/u8:3+events_unbound11:55:171
39936209910092,5cyclictest4017917-21kworker/u8:0+events_unbound08:55:010
3993623999995,3cyclictest4027179-21kworker/u8:3+events_unbound09:35:241
3993623999688,6cyclictest4079281-21apt-get11:35:021
3993623999588,5cyclictest4064468-21kworker/u8:0+events_unbound10:55:021
3993623999489,4cyclictest4053316-21kworker/u8:2+events_unbound11:05:141
3993623999483,8cyclictest4100242-21apt-get12:40:011
3993620999485,6cyclictest4047160-21kworker/u8:0+flush-179:010:10:190
3993623999388,4cyclictest4029065-21kworker/u8:1+flush-179:009:00:231
3993620999386,5cyclictest4100259-21latency_hist12:40:010
3993623999286,4cyclictest4061206-21kworker/u8:0+events_unbound10:40:131
3993620999286,4cyclictest4033624-21kworker/u8:0+flush-179:009:20:250
3993620998878,7cyclictest4022445-21latency_hist08:40:010
3993620998878,7cyclictest1213033-21systemd-journal11:35:150
3993623998777,7cyclictest4072638-21latency_hist11:15:011
3993623998680,4cyclictest4051678-21kworker/u8:1+events_unbound10:35:191
3993623998580,3cyclictest4082709-21kworker/u8:3+flush-179:012:15:201
3993623998580,3cyclictest4074233-21kworker/u8:0+events_unbound11:20:141
3993623998580,3cyclictest4074233-21kworker/u8:0+events_unbound11:20:131
3993623998577,3cyclictest4017917-21kworker/u8:0+events_unbound08:45:241
3993623998576,7cyclictest4081392-21kworker/u8:0+events_unbound11:50:011
3993623998479,4cyclictest4041658-21kworker/u8:2+flush-179:010:00:131
3993623998478,5cyclictest4084355-21kworker/u8:2+events_unbound12:00:281
3993623998376,5cyclictest4046657-21apt-get09:55:031
3993623998371,11cyclictest4053316-21kworker/u8:2+flush-179:010:30:261
3993620998271,8cyclictest3995344-21apt-get07:15:110
3993620998267,12cyclictest1213033-21systemd-journal10:39:560
3993623998174,5cyclictest4022719-21apt-get08:40:111
3993623998076,3cyclictest4024031-21kworker/u8:1+events_unbound08:50:231
3993623997974,4cyclictest4090716-21kworker/u8:1+flush-179:012:20:261
3993623997974,4cyclictest4069509-21kworker/u8:3+flush-179:011:15:261
3993623997974,4cyclictest4053316-21kworker/u8:2+flush-179:010:50:251
3993623997974,4cyclictest4017917-21kworker/u8:0+flush-179:008:30:261
3993620997971,5cyclictest4053316-21kworker/u8:2+flush-179:011:05:210
3993623997870,4cyclictest4084355-21kworker/u8:2+events_unbound12:05:191
3993620997867,9cyclictest4043464-21apt-get09:45:120
3993620997867,9cyclictest4043464-21apt-get09:45:120
3993620997866,8cyclictest4047160-21kworker/u8:0+events_unbound10:00:000
3993623997774,2cyclictest4014465-21kworker/u8:3+events_unbound08:20:181
3993623997772,4cyclictest4051678-21kworker/u8:1+flush-179:010:45:221
3993623997769,6cyclictest4095722-21apt-get12:25:121
3993623997672,3cyclictest4027179-21kworker/u8:3+flush-179:009:15:261
3993623997671,4cyclictest4075869-21kworker/u8:1+events_unbound11:50:181
3993623997671,4cyclictest4011025-21kworker/u8:1+flush-179:008:05:191
3993623997670,4cyclictest4051678-21kworker/u8:1+flush-179:010:15:111
3993620997667,6cyclictest4012896-21latency_hist08:10:020
3993623997571,3cyclictest4027179-21kworker/u8:3+events_unbound08:55:231
3993623997570,3cyclictest3990281-21kworker/u8:2+events_unbound07:15:141
3993620997569,4cyclictest4004724-21kworker/u8:2+events_unbound08:15:000
3993620997569,4cyclictest4004724-21kworker/u8:2+events_unbound08:15:000
3993629997468,4cyclictest4035197-21turbostat09:20:003
3993623997469,4cyclictest4012874-21kworker/u8:0+flush-179:008:10:191
3993623997469,4cyclictest4012874-21kworker/u8:0+flush-179:008:10:191
3993623997467,6cyclictest4030451-21kworker/u8:2+events_unbound09:10:241
3993623997466,6cyclictest4041658-21kworker/u8:2+events_unbound09:50:031
3993620997468,4cyclictest4069509-21kworker/u8:3+flush-179:011:25:180
3993623997368,4cyclictest4029065-21kworker/u8:1+flush-179:009:05:201
3993623997368,3cyclictest4027179-21kworker/u8:3+flush-179:009:20:141
3993623997365,6cyclictest1213033-21systemd-journal07:12:151
3993623997268,3cyclictest3999912-21kworker/u8:1+flush-179:007:30:211
3993623997262,7cyclictest4040014-21latency_hist09:35:011
3993623997165,4cyclictest4051678-21kworker/u8:1+flush-179:010:25:151
3993623997161,4cyclictest3999912-21kworker/u8:1+events_unbound07:35:101
3993623997159,9cyclictest1213033-21systemd-journal08:35:151
3993620997163,6cyclictest4082709-21kworker/u8:3+flush-179:012:25:010
3993620997060,8cyclictest4050353-21apt-get10:05:100
3993620996962,5cyclictest4041658-21kworker/u8:2+flush-179:009:40:240
3993620996954,13cyclictest4017936-21apt-get08:25:110
3993623996864,3cyclictest4037851-21kworker/u8:1+flush-179:009:25:241
3993623996862,4cyclictest4082709-21kworker/u8:3+flush-179:012:10:151
3993623996763,3cyclictest4004724-21kworker/u8:2+events_unbound08:15:151
3993620996764,2cyclictest4004724-21kworker/u8:2+flush-179:008:49:550
3993620996758,6cyclictest4050099-21latency_hist10:05:010
3993623996662,3cyclictest4047160-21kworker/u8:0+events_unbound10:10:181
3993623996659,4cyclictest3998323-21kworker/u8:3+events_unbound08:00:161
3993620996656,5cyclictest4027179-21kworker/u8:3+flush-179:008:55:150
3993620996560,4cyclictest4003349-21apt-get07:40:110
3993620996355,6cyclictest3995325-21kworker/u8:1+flush-179:007:20:180
3993620996355,6cyclictest3995325-21kworker/u8:1+flush-179:007:20:180
3993623996258,3cyclictest4041658-21kworker/u8:2+events_unbound10:05:161
3993620996255,4cyclictest4029065-21kworker/u8:1+flush-179:009:00:110
3993620996251,8cyclictest4027179-21kworker/u8:3+flush-179:009:20:010
3993623996156,4cyclictest4041585-21kworker/u8:1+flush-179:009:44:551
3993623996156,4cyclictest3998323-21kworker/u8:3+flush-179:007:44:551
3993623996156,4cyclictest3995325-21kworker/u8:1+events_unbound07:20:251
3993623996156,4cyclictest3995325-21kworker/u8:1+events_unbound07:20:251
3993623996154,5cyclictest1-21systemd08:00:001
3993620996153,5cyclictest4027179-21kworker/u8:3+flush-179:009:10:200
3993623996056,3cyclictest3998323-21kworker/u8:3+flush-179:007:45:261
3993623996056,3cyclictest3998323-21kworker/u8:3+flush-179:007:45:261
3993623996055,4cyclictest4082709-21kworker/u8:3+flush-179:012:30:371
3993623996055,4cyclictest4075869-21kworker/u8:1+events_unbound11:40:181
3993623996050,8cyclictest3998280-21kworker/u8:0+flush-179:007:25:201
3993620996052,6cyclictest510-21rs:main0
3993620996051,6cyclictest4074233-21kworker/u8:0+events_unbound11:20:240
3993620996051,6cyclictest4074233-21kworker/u8:0+events_unbound11:20:230
3993620996035,23cyclictest1213033-21systemd-journal07:40:010
3993620995848,7cyclictest3998323-21kworker/u8:3+flush-179:008:00:160
3993623995650,3cyclictest4051678-21kworker/u8:1+flush-179:010:20:261
3993623995649,6cyclictest3998323-21kworker/u8:3+events_unbound07:50:161
3993620995651,3cyclictest4074233-21kworker/u8:0+flush-179:011:20:010
3993620995651,3cyclictest4064468-21kworker/u8:0+flush-179:011:00:010
3993620995649,5cyclictest4084355-21kworker/u8:2+events_unbound12:00:160
3993620995551,3cyclictest4017917-21kworker/u8:0+flush-179:008:35:000
3993620995551,2cyclictest4004724-21kworker/u8:2+events_unbound08:40:140
3993620995549,3cyclictest3990281-21kworker/u8:2+flush-179:007:25:150
3993620995547,6cyclictest4038682-21apt-get09:30:110
3993620995447,5cyclictest4077940-21apt-get11:30:110
3993620995446,6cyclictest4027179-21kworker/u8:3+flush-179:009:05:150
3993620995443,8cyclictest4082709-21kworker/u8:3+flush-179:012:10:140
3993623995349,3cyclictest4017917-21kworker/u8:0+flush-179:008:29:551
3993620995349,3cyclictest4044944-21kworker/u8:3+flush-179:009:50:160
3993620995345,5cyclictest4051678-21kworker/u8:1+events_unbound10:25:100
3993620995344,6cyclictest4087497-21latency_hist12:00:000
3993620995044,4cyclictest4098644-21latency_hist12:35:010
3993620995043,5cyclictest3998323-21kworker/u8:3+flush-179:007:50:160
3993620995041,7cyclictest4059641-21latency_hist10:35:010
3993620995033,7cyclictest1213033-21systemd-journal10:20:000
3993620994943,4cyclictest3999912-21kworker/u8:1+flush-179:007:30:150
3993620994942,5cyclictest1213033-21systemd-journal08:16:150
3993620994939,9cyclictest4004935-21apt-get07:45:120
3993620994939,9cyclictest4004935-21apt-get07:45:110
3993620994843,3cyclictest4033624-21kworker/u8:0+flush-179:009:35:150
3993620994842,4cyclictest4066162-21sort10:55:000
4577091460,13ptp4l441ktimers/307:10:013
3993623994641,3cyclictest4044988-21apt-key09:50:011
3993623994641,3cyclictest4044988-21apt-key09:50:011
3993620994641,4cyclictest4084355-21kworker/u8:2+flush-179:012:05:210
3993620994640,4cyclictest4053316-21kworker/u8:2+events_unbound10:20:240
3993629994539,4cyclictest4058070-21turbostat10:30:003
3993620994538,5cyclictest4051678-21kworker/u8:1+flush-179:010:45:210
3993620994534,9cyclictest1213033-21systemd-journal08:00:000
3993628994441,2cyclictest0-21swapper/211:21:592
3993628994441,2cyclictest0-21swapper/211:21:592
3993620994440,3cyclictest4075869-21kworker/u8:1+flush-179:011:50:260
3993620994439,2cyclictest4090716-21kworker/u8:1+events_unbound12:25:200
3993623994338,4cyclictest4069509-21kworker/u8:3+events_unbound11:25:111
3993620994338,4cyclictest4069509-21kworker/u8:3+flush-179:011:10:220
3993620994334,7cyclictest3995091-21latency_hist07:15:010
399362099431,39cyclictest4093902-21sendmail-msp12:19:590
399362899410,39cyclictest0-21swapper/210:08:582
3993620994136,3cyclictest4062850-21apt10:45:000
3993629994035,4cyclictest4009444-21turbostat08:04:553
3993628994037,2cyclictest0-21swapper/212:23:582
3993629993934,4cyclictest4074256-21turbostat11:20:013
399362999390,4cyclictest4054869-21turbostat10:20:003
399362999390,38cyclictest4050111-21turbostat10:04:593
3993620993930,7cyclictest3993475-21latency_hist07:10:020
399362899380,36cyclictest0-21swapper/208:14:002
399362899380,36cyclictest0-21swapper/208:13:592
3993620993833,4cyclictest4075869-21kworker/u8:1+flush-179:011:45:200
3993629993735,1cyclictest0-21swapper/312:18:593
3993628993734,2cyclictest0-21swapper/212:18:002
3993628993734,2cyclictest0-21swapper/209:40:592
3993628993734,2cyclictest0-21swapper/207:47:592
3993628993734,2cyclictest0-21swapper/207:47:592
399362899370,35cyclictest0-21swapper/212:00:592
399362899370,35cyclictest0-21swapper/211:19:592
399362899370,35cyclictest0-21swapper/210:57:592
399362899370,35cyclictest0-21swapper/210:27:592
399362899370,35cyclictest0-21swapper/209:50:592
399362899370,35cyclictest0-21swapper/209:05:002
399362899370,35cyclictest0-21swapper/208:02:592
399362899370,35cyclictest0-21swapper/207:59:592
399362899370,1cyclictest0-21swapper/211:12:592
3993629993634,1cyclictest0-21swapper/312:22:003
3993629993634,1cyclictest0-21swapper/311:51:003
3993629993634,1cyclictest0-21swapper/311:11:583
3993629993630,5cyclictest4079282-21turbostat11:35:003
3993628993634,1cyclictest0-21swapper/209:59:592
3993628993634,1cyclictest0-21swapper/207:12:592
3993628993633,2cyclictest0-21swapper/211:03:002
3993628993633,2cyclictest0-21swapper/209:35:592
3993628993633,2cyclictest0-21swapper/209:28:592
3993628993633,2cyclictest0-21swapper/209:17:592
3993628993633,2cyclictest0-21swapper/208:55:592
399362899360,1cyclictest0-21swapper/211:31:592
3993628993533,1cyclictest0-21swapper/212:09:582
3993628993533,1cyclictest0-21swapper/210:51:592
3993628993532,2cyclictest0-21swapper/212:13:592
3993628993532,2cyclictest0-21swapper/210:21:592
3993628993532,2cyclictest0-21swapper/207:38:592
399362899350,1cyclictest0-21swapper/208:46:582
3993620993529,4cyclictest4069478-21apt11:05:000
3993629993432,1cyclictest0-21swapper/312:38:593
3993629993432,1cyclictest0-21swapper/307:51:003
3993628993432,1cyclictest0-21swapper/208:19:592
3993628993431,2cyclictest0-21swapper/209:20:592
3993628993431,2cyclictest0-21swapper/207:25:002
3993628993431,2cyclictest0-21swapper/207:24:592
3993629993331,1cyclictest0-21swapper/309:20:593
3993629993331,1cyclictest0-21swapper/309:14:553
3993629993331,1cyclictest0-21swapper/308:30:583
3993628993331,1cyclictest0-21swapper/207:19:592
3993628993330,2cyclictest0-21swapper/209:11:592
399362999320,1cyclictest0-21swapper/311:20:133
399362999320,1cyclictest0-21swapper/311:20:123
3993628993230,1cyclictest0-21swapper/212:35:002
3993629993125,5cyclictest0-21swapper/311:35:033
3993629993125,5cyclictest0-21swapper/307:40:133
399362999310,30cyclictest0-21swapper/310:11:593
3993629993028,1cyclictest0-21swapper/311:29:583
3993629993027,2cyclictest0-21swapper/308:15:583
399362999300,2cyclictest0-21swapper/307:45:123
399362999300,2cyclictest0-21swapper/307:45:123
399362999300,29cyclictest0-21swapper/310:38:583
399362999300,29cyclictest0-21swapper/308:10:113
399362999300,29cyclictest0-21swapper/308:10:113
3993628993027,2cyclictest0-21swapper/212:36:592
3993628993027,2cyclictest0-21swapper/209:47:002
3993628993027,2cyclictest0-21swapper/209:47:002
3993628993026,2cyclictest0-21swapper/207:54:592
3993620993025,4cyclictest714-21Xorg08:23:000
4577091290,7ptp4l61490irq/134-eno1-TxRx-007:25:003
4577091290,7ptp4l61490irq/134-eno1-TxRx-007:25:003
3993629992927,1cyclictest0-21swapper/311:06:593
3993629992926,2cyclictest0-21swapper/309:46:593
3993629992926,2cyclictest0-21swapper/309:46:593
399362999290,27cyclictest0-21swapper/310:55:023
399362999290,27cyclictest0-21swapper/309:55:123
399362999290,1cyclictest0-21swapper/310:55:023
3993628992926,2cyclictest0-21swapper/210:49:002
3993628992926,2cyclictest0-21swapper/208:30:122
399362899290,27cyclictest0-21swapper/211:55:112
399362899290,27cyclictest0-21swapper/211:25:122
399362899290,27cyclictest0-21swapper/209:32:592
399362899290,27cyclictest0-21swapper/209:05:112
399362899290,27cyclictest0-21swapper/207:30:122
4577091280,7ptp4l61490irq/134-eno1-TxRx-012:05:013
4577091280,7ptp4l441ktimers/308:55:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-010:25:013
3993629992826,1cyclictest0-21swapper/309:50:023
3993629992826,1cyclictest0-21swapper/309:08:593
3993629992825,2cyclictest4578291phc2sys08:35:143
3993629992825,2cyclictest0-21swapper/311:57:583
3993629992825,2cyclictest0-21swapper/308:05:023
3993629992823,4cyclictest0-21swapper/312:08:593
3993629992822,5cyclictest0-21swapper/308:24:003
399362999280,2cyclictest0-21swapper/310:05:113
399362999280,27cyclictest0-21swapper/310:45:123
399362999280,27cyclictest0-21swapper/307:35:113
399362999280,26cyclictest0-21swapper/311:45:113
399362999280,26cyclictest0-21swapper/310:30:133
3993628992824,2cyclictest0-21swapper/210:11:592
399362899280,2cyclictest0-21swapper/212:25:142
399362899280,2cyclictest0-21swapper/211:35:132
399362899280,27cyclictest0-21swapper/208:25:132
399362899280,26cyclictest0-21swapper/210:00:122
399362899280,26cyclictest0-21swapper/208:05:022
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:40:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:05:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-008:44:553
4577091270,6ptp4l441ktimers/309:35:013
399362999270,26cyclictest0-21swapper/310:40:113
399362999270,1cyclictest0-21swapper/307:27:583
3993628992724,2cyclictest0-21swapper/208:35:592
3993628992724,2cyclictest0-21swapper/207:27:002
399362899270,1cyclictest0-21swapper/210:43:582
4577091260,7ptp4l61490irq/134-eno1-TxRx-011:45:003
4577091260,6ptp4l61490irq/134-eno1-TxRx-012:35:003
4577091260,6ptp4l61490irq/134-eno1-TxRx-008:59:553
4577091260,6ptp4l61490irq/134-eno1-TxRx-008:50:003
4577091260,6ptp4l441ktimers/308:00:003
4577091260,6ptp4l441ktimers/307:34:553
4577091260,5ptp4l441ktimers/312:30:013
3993629992624,1cyclictest0-21swapper/307:12:583
3993628992623,2cyclictest0-21swapper/210:17:002
4577091250,6ptp4l441ktimers/308:29:553
4577091250,5ptp4l61490irq/134-eno1-TxRx-009:45:013
4577091250,5ptp4l441ktimers/311:04:563
3993629992523,1cyclictest0-21swapper/307:17:583
399362999250,24cyclictest0-21swapper/312:10:123
3993628992523,1cyclictest0-21swapper/208:41:002
3993628992522,2cyclictest0-21swapper/211:48:592
3993628992522,2cyclictest0-21swapper/210:36:592
399362899250,2cyclictest0-21swapper/211:42:592
3993629992422,1cyclictest0-21swapper/309:25:123
3993628992421,2cyclictest0-21swapper/208:20:132
3993628992421,2cyclictest0-21swapper/207:41:002
231999220,13rtkit-daemon2304-21lightdm-gtk-gre07:05:111
3993628992118,2cyclictest0-21swapper/211:50:132
3993628992118,2cyclictest0-21swapper/208:50:132
3993628992018,1cyclictest0-21swapper/211:09:592
399362899129,2cyclictest0-21swapper/210:33:002
39936289920,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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