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2026-09-16 - 22:59
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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 Wed Sep 16, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
334664899137130,5cyclictest3420001-21latency_hist10:55:021
334664899137130,5cyclictest3420001-21latency_hist10:55:011
334664699137128,6cyclictest3407270-21latency_hist10:15:010
33466469913397,10cyclictest1213033-21systemd-journal08:30:010
334664899132125,6cyclictest3351326-21kworker/u8:1+flush-179:007:30:011
334664899129124,4cyclictest3421657-21kworker/u8:2+flush-179:011:25:241
334664899128120,7cyclictest3431181-21kworker/u8:1+events_unbound12:05:001
334664899128120,6cyclictest3421657-21kworker/u8:2+events_unbound11:10:231
334664899127114,11cyclictest3437750-21kworker/u8:3+flush-179:011:55:231
334664899126120,4cyclictest3415910-21kworker/u8:1+flush-179:010:40:241
334664699124114,7cyclictest3432742-21apt-get11:35:000
334664899121116,2cyclictest3390851-21latency_hist09:25:011
334664899121115,4cyclictest3413671-21kworker/u8:2+events_unbound10:35:261
334664899121110,8cyclictest3437750-21kworker/u8:3+events_unbound12:05:201
334664899119113,4cyclictest3357468-21kworker/u8:1+flush-179:007:40:231
334664899119113,4cyclictest3357468-21kworker/u8:1+flush-179:007:40:231
334664899118111,5cyclictest3436161-21kworker/u8:0+events_unbound11:45:001
334664899118109,4cyclictest3405669-21kworker/u8:1+events_unbound10:15:211
334664899117110,5cyclictest3426410-21kworker/u8:0+events_unbound11:20:171
334664899117109,5cyclictest3369689-21kworker/u8:0+events_unbound09:05:141
334664899117103,8cyclictest3418459-21kworker/u8:3+events_unbound11:00:281
334664899114105,6cyclictest3351334-21latency_hist07:25:011
334664899113104,7cyclictest3360330-21/usr/sbin/munin07:50:201
334664899112104,6cyclictest3376063-21kworker/u8:2+events_unbound09:25:231
334664899112102,4cyclictest3369689-21kworker/u8:0+events_unbound09:15:231
334664899112102,4cyclictest3369689-21kworker/u8:0+events_unbound09:15:221
334664699112105,5cyclictest3437750-21kworker/u8:3+flush-179:012:25:220
33466489911199,5cyclictest3431181-21kworker/u8:1+events_unbound12:10:181
334664899111107,3cyclictest3376063-21kworker/u8:2+events_unbound08:55:241
334664699111102,7cyclictest510-21rs:main0
334664699111102,7cyclictest3431181-21kworker/u8:1+flush-179:012:00:020
334664899110105,3cyclictest3369689-21kworker/u8:0+flush-179:009:10:211
334664699110101,6cyclictest3381071-21gpgv08:55:010
334664899109104,4cyclictest3368022-21kworker/u8:2+events_unbound08:15:251
334664899109104,3cyclictest3413671-21kworker/u8:2+flush-179:010:45:211
334664899108104,3cyclictest3369689-21kworker/u8:0+flush-179:008:35:251
334664899108101,5cyclictest3359976-21kworker/u8:3+flush-179:008:10:161
334664899108100,6cyclictest3399041-21kworker/u8:2+events_unbound09:55:011
33466469910798,6cyclictest3399041-21kworker/u8:2+flush-179:009:55:170
33466489910693,10cyclictest3359834-21latency_hist07:50:011
334664899106101,3cyclictest3369689-21kworker/u8:0+flush-179:008:40:211
334664899106101,3cyclictest3349716-21kworker/u8:3+flush-179:007:25:161
33466469910697,6cyclictest3438005-21/usr/sbin/munin11:50:220
334664699106102,3cyclictest3405669-21kworker/u8:1+flush-179:010:15:150
33466489910597,5cyclictest3402472-21kworker/u8:0+flush-179:010:10:221
33466489910596,4cyclictest3372869-21kworker/u8:1+events_unbound08:45:251
33466469910597,6cyclictest3369689-21kworker/u8:0+flush-179:008:30:200
33466469910595,7cyclictest3426410-21kworker/u8:0+flush-179:011:20:000
33466489910394,6cyclictest3363270-21latency_hist08:00:011
33466489910196,3cyclictest3376063-21kworker/u8:2+flush-179:009:00:211
33466469910190,9cyclictest3381047-21apt-get08:55:040
33466489910094,4cyclictest3368022-21kworker/u8:2+flush-179:008:25:201
33466469910091,6cyclictest3392438-21latency_hist09:30:010
3346648999993,4cyclictest3421657-21kworker/u8:2+events_unbound11:50:161
3346648999989,7cyclictest3394283-21latency_hist09:35:011
3346648999986,10cyclictest1213033-21systemd-journal12:25:011
3346648999893,4cyclictest3359976-21kworker/u8:3+flush-179:008:20:261
3346648999892,4cyclictest3445964-21kworker/u8:0+events_unbound12:15:171
3346648999889,6cyclictest3399041-21kworker/u8:2+events_unbound10:25:151
3346648999889,6cyclictest3399041-21kworker/u8:2+events_unbound10:25:141
3346646999887,9cyclictest3363524-21/usr/sbin/munin08:00:240
3346648999791,4cyclictest3445964-21kworker/u8:0+events_unbound12:35:001
3346648999790,5cyclictest3390886-21kworker/u8:3+events_unbound09:35:151
3346648999783,5cyclictest3390494-21kworker/u8:1+events_unbound10:00:241
3346646999681,13cyclictest3353306-21gpgv07:30:000
3346648999590,4cyclictest3369689-21kworker/u8:0+flush-179:008:30:231
3346646999385,6cyclictest3356659-21latency_hist07:40:010
3346648999286,4cyclictest3361717-21kworker/u8:0+events_unbound08:05:221
3346648999286,4cyclictest3361717-21kworker/u8:0+events_unbound08:05:221
3346648999281,8cyclictest3434587-21latency_hist11:40:021
3346648999178,9cyclictest3445964-21kworker/u8:0+flush-179:012:25:151
3346648999082,5cyclictest3418395-21kworker/u8:1+flush-179:011:05:161
3346646999084,4cyclictest3376063-21kworker/u8:2+events_unbound09:20:020
3346646999084,4cyclictest3376063-21kworker/u8:2+events_unbound09:20:010
3346646999080,7cyclictest3445981-21latency_hist12:15:010
3346648998984,4cyclictest3390886-21kworker/u8:3+flush-179:009:40:271
3346648998979,7cyclictest3399041-21kworker/u8:2+events_unbound10:05:131
3346646998982,6cyclictest3376063-21kworker/u8:2+flush-179:009:20:190
3346646998979,7cyclictest3361717-21kworker/u8:0+flush-179:008:05:170
3346646998979,7cyclictest3361717-21kworker/u8:0+flush-179:008:05:170
3346648998882,5cyclictest3327429-21kworker/u8:1+flush-179:007:15:201
3346648998882,4cyclictest3418395-21kworker/u8:1+flush-179:011:15:251
3346646998880,6cyclictest3400646-21latency_hist09:55:010
3346646998780,5cyclictest3421657-21kworker/u8:2+flush-179:011:10:240
3346648998579,4cyclictest3408914-21kworker/u8:0+events_unbound10:20:221
3346646998576,6cyclictest3384488-21latency_hist09:05:010
3346646998575,7cyclictest3359976-21kworker/u8:3+flush-179:008:10:210
3346646998477,3cyclictest3359976-21kworker/u8:3+events_unbound08:20:210
3346646998374,4cyclictest3390886-21kworker/u8:3+flush-179:009:40:260
3346646998273,5cyclictest3431181-21kworker/u8:1+flush-179:012:00:190
3346646998272,7cyclictest3376014-21latency_hist08:40:010
3346646998173,5cyclictest3369689-21kworker/u8:0+events_unbound09:05:250
3346648998075,4cyclictest3437750-21kworker/u8:3+flush-179:011:49:551
3346646998067,11cyclictest3356912-21apt-get07:40:110
3346646998067,11cyclictest3356912-21apt-get07:40:110
3346646998067,10cyclictest510-21rs:main0
3346648997873,4cyclictest3359976-21kworker/u8:3+events_unbound08:00:191
3346648997870,6cyclictest3376063-21kworker/u8:2+events_unbound08:50:211
3346646997866,8cyclictest3390886-21kworker/u8:3+flush-179:009:45:170
3346646997767,7cyclictest3433247-21apt-get11:35:130
3346646997764,11cyclictest3348391-21apt-get07:15:110
3346648997668,6cyclictest3348137-21latency_hist07:15:011
3346646997670,4cyclictest3399041-21kworker/u8:2+flush-179:010:25:220
3346646997670,4cyclictest3399041-21kworker/u8:2+flush-179:010:25:220
3346646997662,10cyclictest3390886-21kworker/u8:3+flush-179:009:35:230
3346646997566,7cyclictest3452350-21latency_hist12:35:020
3346646997566,6cyclictest3354102-21kworker/u8:0+flush-179:007:45:140
3346646997560,10cyclictest3426410-21kworker/u8:0+events_unbound11:20:200
3346648997469,3cyclictest3390886-21kworker/u8:3+events_unbound09:45:201
3346648997268,3cyclictest3412040-21kworker/u8:3+flush-179:010:30:221
3346646997168,2cyclictest3349716-21kworker/u8:3+events_unbound07:30:250
3346648997065,4cyclictest3418459-21kworker/u8:3+events_unbound11:30:211
3346646997063,5cyclictest3452330-21kworker/u8:1+flush-179:012:35:250
3346646997060,7cyclictest3413671-21kworker/u8:2+flush-179:010:35:220
3346646997058,9cyclictest3369689-21kworker/u8:0+flush-179:009:10:260
3346646997058,9cyclictest3327429-21kworker/u8:1+flush-179:007:10:230
3346648996959,6cyclictest3327429-21kworker/u8:1+events_unbound07:10:011
3346648996955,12cyclictest3445964-21kworker/u8:0+flush-179:012:40:001
3346646996965,3cyclictest3357468-21kworker/u8:1+flush-179:007:54:550
3346646996954,10cyclictest3408914-21kworker/u8:0+events_unbound10:20:130
3346646996755,9cyclictest3359976-21kworker/u8:3+flush-179:007:55:200
3346646996746,13cyclictest3369689-21kworker/u8:0+flush-179:008:40:240
3346648996661,4cyclictest3399041-21kworker/u8:2+events_unbound09:54:561
3346654996562,2cyclictest0-21swapper/312:29:593
3346646996558,5cyclictest3421657-21kworker/u8:2+events_unbound11:40:250
3346646996356,5cyclictest3390494-21kworker/u8:1+flush-179:010:00:230
3346646996354,7cyclictest3368022-21kworker/u8:2+events_unbound08:15:160
3346646996352,9cyclictest3420255-21apt-get10:55:110
3346654996234,26cyclictest0-21swapper/311:03:593
3346648996250,10cyclictest3355568-21diskstats07:35:161
3346646996255,5cyclictest3421657-21kworker/u8:2+events_unbound11:25:200
3346646996148,10cyclictest3399041-21kworker/u8:2+flush-179:010:05:140
3346646996051,6cyclictest3408914-21kworker/u8:0+flush-179:010:45:160
3346648995746,9cyclictest3418459-21kworker/u8:3+flush-179:010:55:161
3346654995553,1cyclictest0-21swapper/310:51:003
3346654995553,1cyclictest0-21swapper/310:50:593
3346646995447,5cyclictest3349705-21kworker/u8:0+flush-179:007:20:200
3346646995342,8cyclictest3436161-21kworker/u8:0+flush-179:011:45:150
3346646995028,20cyclictest3444443-21latency_hist12:10:000
3346646994940,6cyclictest3445964-21kworker/u8:0+flush-179:012:15:150
4577091480,12ptp4l61490irq/134-eno1-TxRx-007:09:563
3346650994845,2cyclictest0-21swapper/211:59:582
3346646994540,4cyclictest3418395-21kworker/u8:1+flush-179:011:05:220
3346646994539,5cyclictest3408914-21kworker/u8:0+events_unbound10:40:180
3346654994442,1cyclictest0-21swapper/312:07:593
334664699420,41cyclictest0-21swapper/010:51:000
334664699420,41cyclictest0-21swapper/010:50:590
3346646994136,4cyclictest3376063-21kworker/u8:2+events_unbound08:45:160
334664699410,4cyclictest3412064-21turbostat10:34:550
3346650993936,2cyclictest0-21swapper/208:20:592
3346650993835,2cyclictest0-21swapper/211:29:552
334665099380,36cyclictest0-21swapper/208:35:002
334665099380,36cyclictest0-21swapper/208:02:592
334665099380,35cyclictest0-21swapper/212:34:552
3346654993735,1cyclictest0-21swapper/308:09:593
3346654993735,1cyclictest0-21swapper/308:09:593
334665499370,36cyclictest0-21swapper/311:09:563
3346650993734,2cyclictest0-21swapper/209:08:002
334665099370,35cyclictest0-21swapper/210:35:002
334665099370,35cyclictest0-21swapper/207:43:592
334665099370,35cyclictest0-21swapper/207:43:592
3346654993634,1cyclictest0-21swapper/307:40:593
3346654993634,1cyclictest0-21swapper/307:40:593
3346654993633,2cyclictest0-21swapper/311:29:593
334665499360,35cyclictest0-21swapper/312:15:593
334665499360,35cyclictest0-21swapper/310:05:593
334665499360,35cyclictest0-21swapper/309:52:003
334665499360,35cyclictest0-21swapper/309:27:593
334665499360,35cyclictest0-21swapper/308:31:583
334665499360,1cyclictest0-21swapper/312:34:003
334665499360,1cyclictest0-21swapper/311:42:003
334665499360,1cyclictest0-21swapper/309:44:563
334665499360,1cyclictest0-21swapper/308:25:593
334665499360,1cyclictest0-21swapper/307:24:593
3346650993634,1cyclictest0-21swapper/210:59:592
3346650993633,2cyclictest0-21swapper/209:00:592
334665099360,1cyclictest0-21swapper/211:34:562
334665099360,1cyclictest0-21swapper/207:59:552
3346654993533,1cyclictest0-21swapper/309:20:003
3346654993533,1cyclictest0-21swapper/309:19:593
3346654993533,1cyclictest0-21swapper/308:37:003
334665499350,1cyclictest0-21swapper/308:49:593
3346650993532,2cyclictest0-21swapper/212:12:592
3346650993532,2cyclictest0-21swapper/210:41:582
3346650993532,2cyclictest0-21swapper/209:20:592
3346650993532,2cyclictest0-21swapper/208:43:592
3346650993532,2cyclictest0-21swapper/207:12:592
3346650993531,2cyclictest0-21swapper/210:14:582
4577091340,27ptp4l61490irq/134-eno1-TxRx-010:25:133
4577091340,27ptp4l61490irq/134-eno1-TxRx-010:25:133
3346654993432,1cyclictest0-21swapper/311:54:593
3346654993432,1cyclictest0-21swapper/307:53:593
3346654993432,1cyclictest0-21swapper/307:13:593
3346650993431,2cyclictest0-21swapper/211:00:582
3346650993431,2cyclictest0-21swapper/208:15:592
3346646993428,5cyclictest3445964-21kworker/u8:0+events_unbound12:20:210
3346654993331,1cyclictest0-21swapper/312:11:593
3346654993331,1cyclictest0-21swapper/309:10:593
4577091320,9ptp4l441ktimers/311:39:563
3346654993230,1cyclictest0-21swapper/312:37:593
3346654993230,1cyclictest0-21swapper/308:16:593
334665499320,25cyclictest0-21swapper/309:38:003
3346650993230,1cyclictest0-21swapper/207:20:002
3346650993229,2cyclictest0-21swapper/208:37:582
3346654993129,1cyclictest0-21swapper/309:49:593
3346654993129,1cyclictest0-21swapper/308:59:593
3346654993129,1cyclictest0-21swapper/308:54:593
3346650993128,2cyclictest0-21swapper/209:37:592
3346650993128,2cyclictest0-21swapper/208:54:542
4577091300,7ptp4l441ktimers/311:00:003
3346654993028,1cyclictest0-21swapper/312:03:593
334665499300,29cyclictest0-21swapper/311:30:133
334665499300,29cyclictest0-21swapper/308:20:143
3346650993027,2cyclictest0-21swapper/212:35:142
3346650993027,2cyclictest0-21swapper/209:45:142
3346650993027,2cyclictest0-21swapper/208:50:022
3346650993027,2cyclictest0-21swapper/208:29:562
3346650993027,2cyclictest0-21swapper/207:30:592
334665099300,28cyclictest0-21swapper/210:48:002
4577091290,7ptp4l441ktimers/307:50:003
334665499290,28cyclictest3386088-21turbostat09:09:593
334665499290,28cyclictest0-21swapper/311:45:133
334665499290,28cyclictest0-21swapper/311:20:133
334665499290,27cyclictest0-21swapper/307:30:013
334665499290,27cyclictest0-21swapper/307:15:123
334665499290,1cyclictest0-21swapper/310:20:133
3346650992926,2cyclictest0-21swapper/208:55:132
3346650992926,2cyclictest0-21swapper/207:50:012
334665099290,28cyclictest0-21swapper/209:55:012
334665099290,27cyclictest0-21swapper/212:15:142
334665099290,27cyclictest0-21swapper/209:30:022
334665099290,27cyclictest0-21swapper/207:25:032
334665099290,27cyclictest0-21swapper/207:20:122
4577091280,6ptp4l441ktimers/309:05:013
4577091280,6ptp4l441ktimers/307:40:003
3346654992825,2cyclictest0-21swapper/310:15:143
334665499280,2cyclictest0-21swapper/307:30:013
334665499280,27cyclictest0-21swapper/311:55:013
334665499280,27cyclictest0-21swapper/307:55:133
334665499280,26cyclictest0-21swapper/311:10:143
334665499280,26cyclictest0-21swapper/310:35:133
334665499280,26cyclictest0-21swapper/309:55:033
334665499280,26cyclictest0-21swapper/308:10:593
3346650992826,1cyclictest0-21swapper/207:50:012
3346650992825,2cyclictest0-21swapper/210:00:132
3346650992825,2cyclictest0-21swapper/209:55:012
3346650992825,2cyclictest0-21swapper/207:36:592
3346650992824,2cyclictest0-21swapper/211:15:592
334665099280,2cyclictest0-21swapper/210:05:122
334665099280,26cyclictest0-21swapper/212:05:132
334665099280,26cyclictest0-21swapper/210:50:112
334665099280,26cyclictest0-21swapper/210:50:112
334665099280,26cyclictest0-21swapper/210:25:132
334665099280,26cyclictest0-21swapper/210:25:122
334665099280,26cyclictest0-21swapper/208:05:132
334665099280,26cyclictest0-21swapper/208:05:132
4577091270,6ptp4l61490irq/134-eno1-TxRx-011:20:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:34:553
4577091270,6ptp4l61490irq/134-eno1-TxRx-008:45:013
4577091270,5ptp4l441ktimers/310:14:553
4577091270,5ptp4l441ktimers/308:05:013
334665499270,26cyclictest0-21swapper/310:30:133
334665499270,1cyclictest0-21swapper/310:45:133
3346650992724,2cyclictest0-21swapper/212:00:582
3346650992724,2cyclictest0-21swapper/211:47:002
3346650992724,2cyclictest0-21swapper/210:37:592
334665099270,25cyclictest0-21swapper/211:42:592
334665099270,1cyclictest0-21swapper/211:50:122
334665099270,1cyclictest0-21swapper/210:18:002
4577091260,5ptp4l441ktimers/312:24:553
4577091260,5ptp4l441ktimers/309:24:563
4577091260,4ptp4l441ktimers/310:45:023
334665499260,24cyclictest0-21swapper/310:00:123
3346650992623,2cyclictest0-21swapper/212:25:122
3346650992623,2cyclictest0-21swapper/209:41:592
3346650992623,2cyclictest0-21swapper/209:15:592
3346650992623,2cyclictest0-21swapper/209:15:592
334665099260,24cyclictest0-21swapper/211:21:592
334665099250,2cyclictest0-21swapper/211:05:592
3346650992421,2cyclictest0-21swapper/209:28:592
3346650992219,2cyclictest0-21swapper/212:24:592
3346650992118,2cyclictest0-21swapper/211:37:592
231999190,11rtkit-daemon2304-21lightdm-gtk-gre07:08:120
3346650991815,2cyclictest0-21swapper/208:12:592
3346650991715,1cyclictest0-21swapper/211:12:002
3346650991714,2cyclictest0-21swapper/209:13:582
3346650991512,2cyclictest0-21swapper/210:20:132
33466509920,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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