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2025-12-30 - 21:01
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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 Tue Dec 30, 2025 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
548959999282,7cyclictest571241-21latency_hist08:20:011
548959999181,7cyclictest648436-21latency_hist12:20:001
548955998674,8cyclictest603568-21kworker/u8:2+flush-179:010:10:240
548955998460,8cyclictest266-21systemd-journal10:20:150
548955998274,5cyclictest614776-21kworker/u8:3+flush-179:011:00:010
548959997667,6cyclictest650035-21latency_hist12:25:001
548959997464,8cyclictest622765-21kworker/u8:2+flush-179:011:15:241
548960997240,2cyclictest0-21swapper/209:05:592
548959997261,8cyclictest582659-21http08:55:001
548955996958,9cyclictest594294-21apt-get09:30:130
548955996955,11cyclictest266-21systemd-journal12:10:000
548964996838,1cyclictest0-21swapper/309:05:593
548955996860,5cyclictest614776-21kworker/u8:3+flush-179:010:50:150
548959996757,7cyclictest549150-21/usr/sbin/munin07:10:231
548959996659,5cyclictest1-21systemd12:10:011
548959996561,3cyclictest569618-21kworker/u8:2+events_unbound08:35:291
548959996460,3cyclictest585169-21kworker/u8:1+events_unbound09:09:411
548959996358,4cyclictest591123-21kworker/u8:2+events_unbound09:20:421
548959996258,3cyclictest651653-21kworker/u8:2+events_unbound12:39:411
548959996254,6cyclictest563262-21latency_hist07:55:011
548955996247,12cyclictest582639-21apt-get08:55:000
548955996154,5cyclictest627712-21kworker/u8:1+events_unbound11:20:020
548955996154,5cyclictest614776-21kworker/u8:3+flush-179:011:00:180
548959996056,3cyclictest643696-21kworker/u8:3+events_unbound12:12:401
548955996056,3cyclictest564830-21kworker/u8:2+flush-179:008:00:270
548955996052,6cyclictest609965-21latency_hist10:20:000
548955996051,6cyclictest629573-21kworker/u8:0+flush-179:011:20:160
548959995955,3cyclictest622765-21kworker/u8:2+events_unbound11:05:021
548959995955,3cyclictest597197-21kworker/u8:1+events_unbound09:39:421
548959995854,3cyclictest635732-21kworker/u8:2+events_unbound11:54:411
548959995854,3cyclictest3526500-21kworker/u8:0+events_unbound07:40:411
548955995852,4cyclictest569667-21kworker/u8:3+flush-179:008:20:220
548959995752,4cyclictest632546-21kworker/u8:3+events_unbound11:33:421
548959995752,4cyclictest585169-21kworker/u8:1+events_unbound09:18:411
548959995652,3cyclictest546071-21kworker/u8:1+events_unbound07:17:391
548959995652,3cyclictest3526500-21kworker/u8:0+events_unbound07:45:031
548959995651,4cyclictest600441-21kworker/u8:3+events_unbound09:55:031
548959995651,4cyclictest568022-21kworker/u8:0+events_unbound08:13:401
548959995551,3cyclictest627712-21kworker/u8:1+events_unbound11:13:411
548959995551,3cyclictest594274-21kworker/u8:0+events_unbound09:42:411
548959995551,3cyclictest585169-21kworker/u8:1+events_unbound09:30:021
548955995544,8cyclictest555283-21latency_hist07:30:010
548959995450,3cyclictest648396-21kworker/u8:0+events_unbound12:28:431
548959995450,3cyclictest614025-21kworker/u8:2+events_unbound10:34:421
548959995450,3cyclictest574709-21kworker/u8:1+events_unbound08:48:411
548959995450,3cyclictest564824-21kworker/u8:1+events_unbound07:57:411
548959995449,4cyclictest631964-21kworker/u8:1+events_unbound11:35:301
548959995449,3cyclictest648396-21kworker/u8:0+events_unbound12:30:021
548955995448,4cyclictest626124-21kworker/u8:0+flush-179:011:10:230
548955995445,7cyclictest569869-21/usr/sbin/munin08:15:250
548959995349,3cyclictest569618-21kworker/u8:2+events_unbound08:29:361
548959995348,4cyclictest610001-21kworker/u8:1+events_unbound10:45:031
548955995349,3cyclictest585169-21kworker/u8:1+flush-179:009:00:260
548955995347,4cyclictest651653-21kworker/u8:2+flush-179:012:30:250
548955995346,5cyclictest591123-21kworker/u8:2+flush-179:009:20:240
548955995343,8cyclictest587924-21apt-get09:10:120
548955995343,8cyclictest587924-21apt-get09:10:120
548959995248,3cyclictest610001-21kworker/u8:1+events_unbound10:39:421
548959995242,2cyclictest171rcu_preempt09:29:551
548955995247,3cyclictest569618-21kworker/u8:2+events_unbound08:45:170
548955995246,4cyclictest564824-21kworker/u8:1+flush-179:008:10:160
548955995146,4cyclictest564824-21kworker/u8:1+flush-179:008:00:000
548955995139,10cyclictest266-21systemd-journal11:55:010
548955995045,4cyclictest569618-21kworker/u8:2+flush-179:008:35:260
231999500,4rtkit-daemon2318-21rtkit-daemon07:53:010
548959994945,3cyclictest600392-21kworker/u8:0+events_unbound09:50:501
548959994941,5cyclictest617925-21latency_hist10:45:001
548959994938,9cyclictest611812-21apt-get10:25:131
548959994938,9cyclictest611812-21apt-get10:25:131
548955994945,3cyclictest610001-21kworker/u8:1+flush-179:010:45:210
548955994943,4cyclictest600441-21kworker/u8:3+flush-179:010:00:250
4577091490,13ptp4l441ktimers/307:10:013
548964994846,1cyclictest0-21swapper/312:26:593
548955994842,4cyclictest602536-21diskstats09:55:150
548955994841,5cyclictest3526500-21kworker/u8:0+flush-179:007:45:260
548955994841,5cyclictest266-21systemd-journal10:07:400
548959994739,6cyclictest583143-21apt-get08:55:101
548955994741,4cyclictest3526500-21kworker/u8:0+events_unbound07:45:010
548955994739,6cyclictest558491-21latency_hist07:40:010
548959994642,3cyclictest614776-21kworker/u8:3+events_unbound10:58:401
548959994642,3cyclictest564824-21kworker/u8:1+events_unbound08:00:351
548955994641,4cyclictest610001-21kworker/u8:1+flush-179:010:40:190
548955994640,5cyclictest3526500-21kworker/u8:0+flush-179:007:10:230
548955994637,7cyclictest3526500-21kworker/u8:0+flush-179:007:20:190
548959994541,3cyclictest607010-21kworker/u8:0+events_unbound10:17:421
548959994540,4cyclictest600441-21kworker/u8:3+events_unbound10:00:031
548955994535,8cyclictest555827-21diskstats07:30:170
548960994434,8cyclictest0-21swapper/211:14:592
54896099440,41cyclictest0-21swapper/210:02:592
54896099440,2cyclictest0-21swapper/209:31:002
548959994440,3cyclictest627712-21kworker/u8:1+events_unbound11:20:051
548955994438,5cyclictest610001-21kworker/u8:1+events_unbound10:35:240
548955994437,5cyclictest613686-21diskstats10:30:160
548955994437,5cyclictest598805-21kworker/u8:2+flush-179:009:45:160
548955994437,5cyclictest592707-21apt-get09:25:130
548964994333,8cyclictest0-21swapper/308:35:003
548964994330,11cyclictest624570-21turbostat11:05:003
54896499430,41cyclictest0-21swapper/309:58:593
548960994331,9cyclictest0-21swapper/211:05:002
54896099430,40cyclictest0-21swapper/208:19:552
548959994339,3cyclictest556853-21kworker/u8:3+events_unbound07:37:391
548959994338,4cyclictest585169-21kworker/u8:1+events_unbound09:01:011
548959994334,7cyclictest266-21systemd-journal11:49:411
548959994332,9cyclictest631466-21diskstats11:25:161
54895999431,40cyclictest577863-21turbostat08:44:551
548955994338,3cyclictest648396-21kworker/u8:0+flush-179:012:20:250
548960994234,6cyclictest0-21swapper/208:35:002
54895999420,40cyclictest714-21Xorg12:02:581
548955994237,4cyclictest631964-21kworker/u8:1+events_unbound11:55:240
548955994237,4cyclictest610001-21kworker/u8:1+flush-179:010:25:250
548955994237,4cyclictest610001-21kworker/u8:1+flush-179:010:25:240
548955994236,4cyclictest597214-21latency_hist09:40:000
548955994231,9cyclictest578411-21diskstats08:40:160
54895999411,38cyclictest714-21Xorg08:21:591
548955994136,4cyclictest580510-21kworker/u8:0+flush-179:009:15:210
548955994135,5cyclictest585169-21kworker/u8:1+flush-179:009:05:250
548955994134,5cyclictest643696-21kworker/u8:3+events_unbound12:15:020
54895599411,38cyclictest714-21Xorg11:33:590
548964994032,7cyclictest0-21swapper/311:14:593
54896099400,1cyclictest0-21swapper/209:59:002
548959994038,1cyclictest0-21swapper/111:41:591
548955994032,6cyclictest597472-21/usr/sbin/munin09:40:240
54896099390,36cyclictest0-21swapper/211:41:002
54896099390,36cyclictest0-21swapper/210:19:552
548959993935,3cyclictest598805-21kworker/u8:2+events_unbound09:46:011
548959993935,3cyclictest585169-21kworker/u8:1+events_unbound09:13:231
548959993935,3cyclictest585169-21kworker/u8:1+events_unbound09:13:221
548959993934,4cyclictest603568-21kworker/u8:2+events_unbound10:11:001
54895999390,2cyclictest568057-21dump-pmu-power08:10:001
548955993933,4cyclictest631964-21kworker/u8:1+flush-179:011:45:200
54896499380,37cyclictest0-21swapper/309:31:003
548959993835,2cyclictest0-21swapper/110:24:591
548955993833,4cyclictest3526500-21kworker/u8:0+events_unbound07:10:020
548955993833,3cyclictest484-21dbus-daemon08:10:000
548964993734,2cyclictest0-21swapper/312:19:553
548964993734,2cyclictest0-21swapper/310:35:593
548964993733,3cyclictest0-21swapper/310:42:003
54896499370,2cyclictest0-21swapper/312:07:593
548960993734,2cyclictest0-21swapper/210:42:002
548960993734,2cyclictest0-21swapper/210:32:002
548959993733,3cyclictest631964-21kworker/u8:1+events_unbound11:59:581
548959993733,3cyclictest574709-21kworker/u8:1+events_unbound08:31:271
54895999371,34cyclictest1-21systemd11:01:401
548955993732,4cyclictest631964-21kworker/u8:1+events_unbound11:40:160
548955993732,4cyclictest3526500-21kworker/u8:0+flush-179:007:15:220
548955993730,5cyclictest569667-21kworker/u8:3+flush-179:008:25:150
548955993729,5cyclictest642328-21apt-get12:00:140
54895599370,1cyclictest0-21swapper/011:09:590
548964993634,1cyclictest0-21swapper/307:54:593
54896499360,35cyclictest0-21swapper/311:40:593
54896499360,35cyclictest0-21swapper/310:19:543
548959993632,3cyclictest546071-21kworker/u8:1+events_unbound07:20:451
548959993631,4cyclictest3526500-21kworker/u8:0+events_unbound07:31:521
548964993534,1cyclictest0-21swapper/310:29:563
548964993534,1cyclictest0-21swapper/310:29:553
548964993534,1cyclictest0-21swapper/307:58:593
548964993533,1cyclictest0-21swapper/310:31:593
548960993531,2cyclictest0-21swapper/208:50:582
54896099350,1cyclictest0-21swapper/209:00:142
548959993531,3cyclictest600441-21kworker/u8:3+events_unbound10:07:131
548959993531,3cyclictest554694-21kworker/u8:2+events_unbound07:29:131
548955993529,4cyclictest648396-21kworker/u8:0+events_unbound12:25:140
548955993525,8cyclictest629573-21kworker/u8:0+flush-179:011:25:210
548960993431,2cyclictest0-21swapper/212:29:552
548960993430,2cyclictest0-21swapper/211:31:582
548955993430,3cyclictest647954-21proc_pri12:15:230
548964993330,2cyclictest0-21swapper/308:50:593
54896499330,31cyclictest0-21swapper/310:06:593
54896499330,31cyclictest0-21swapper/309:00:143
548960993329,3cyclictest0-21swapper/212:37:002
548960993329,2cyclictest0-21swapper/212:12:592
548960993329,2cyclictest0-21swapper/211:51:592
54896099330,2cyclictest0-21swapper/210:06:582
54896099330,27cyclictest0-21swapper/212:05:152
548959993328,4cyclictest617960-21kworker/u8:0+events_unbound10:54:011
548955993329,3cyclictest632546-21kworker/u8:3+flush-179:011:35:220
548955993327,4cyclictest581074-21kworker/u8:3+flush-179:008:55:200
548964993229,2cyclictest0-21swapper/311:31:583
548960993228,2cyclictest0-21swapper/211:38:592
54896099320,26cyclictest0-21swapper/208:38:592
54896099320,1cyclictest0-21swapper/208:44:592
548955993227,4cyclictest651653-21kworker/u8:2+flush-179:012:40:000
548955993226,4cyclictest575756-21phc2sys08:30:220
548964993129,1cyclictest0-21swapper/312:15:003
54896499310,30cyclictest602002-21turbostat09:55:013
54896499310,30cyclictest600423-21turbostat09:50:003
548960993124,6cyclictest0-21swapper/208:05:172
548964993027,2cyclictest0-21swapper/311:52:003
54896499300,28cyclictest0-21swapper/307:15:133
54896499300,27cyclictest0-21swapper/309:10:143
54896499300,27cyclictest0-21swapper/309:10:143
548960993026,2cyclictest0-21swapper/211:26:002
548960993026,2cyclictest0-21swapper/208:29:592
54896099300,2cyclictest0-21swapper/207:25:132
54896099300,2cyclictest0-21swapper/207:15:142
54896099300,28cyclictest0-21swapper/212:15:132
548955993027,2cyclictest714-21Xorg09:53:590
548964992927,1cyclictest0-21swapper/312:36:593
548964992927,1cyclictest0-21swapper/307:25:133
548964992926,2cyclictest0-21swapper/309:15:143
548964992926,2cyclictest0-21swapper/308:24:593
548964992924,3cyclictest0-21swapper/308:29:593
54896499290,28cyclictest0-21swapper/310:00:143
54896499290,28cyclictest0-21swapper/308:44:593
54896499290,27cyclictest0-21swapper/308:15:153
548960992927,1cyclictest0-21swapper/210:25:002
548960992925,2cyclictest0-21swapper/211:09:552
54896099290,2cyclictest0-21swapper/210:50:132
54896099290,2cyclictest0-21swapper/208:55:032
54896099290,27cyclictest0-21swapper/209:50:152
54896099290,27cyclictest0-21swapper/209:39:112
54896099290,27cyclictest0-21swapper/209:15:132
54896099290,27cyclictest0-21swapper/209:10:142
54896099290,27cyclictest0-21swapper/209:10:132
54896099290,27cyclictest0-21swapper/207:10:122
54896099290,26cyclictest0-21swapper/210:38:582
4577091290,7ptp4l441ktimers/308:15:003
548964992826,1cyclictest0-21swapper/311:39:003
548964992826,1cyclictest0-21swapper/308:55:033
548964992825,2cyclictest611565-21turbostat10:25:013
548964992825,2cyclictest0-21swapper/310:50:143
548964992822,5cyclictest0-21swapper/308:05:173
54896499280,2cyclictest0-21swapper/308:36:593
54896499280,27cyclictest0-21swapper/307:10:133
548960992825,2cyclictest0-21swapper/211:55:132
548960992825,2cyclictest0-21swapper/207:40:132
54896099280,26cyclictest0-21swapper/208:11:192
54896099280,26cyclictest0-21swapper/207:50:132
54896099280,25cyclictest0-21swapper/208:02:472
4577091280,7ptp4l441ktimers/312:25:003
4577091280,7ptp4l441ktimers/311:24:553
4577091280,6ptp4l441ktimers/309:25:013
4577091280,6ptp4l441ktimers/308:05:003
4577091280,6ptp4l441ktimers/307:49:553
4577091280,6ptp4l441ktimers/307:35:013
4577091280,5ptp4l441ktimers/311:59:563
548964992725,1cyclictest0-21swapper/311:17:593
548964992724,2cyclictest619521-21turbostat10:50:003
548964992724,2cyclictest0-21swapper/311:09:543
548964992724,2cyclictest0-21swapper/307:40:133
548964992723,2cyclictest0-21swapper/310:12:113
54896499270,26cyclictest0-21swapper/311:25:593
54896499270,20cyclictest0-21swapper/310:59:003
548960992725,1cyclictest0-21swapper/209:29:592
548960992723,2cyclictest0-21swapper/212:31:382
548960992723,2cyclictest0-21swapper/209:21:592
548960992723,2cyclictest0-21swapper/207:39:282
54896099270,25cyclictest0-21swapper/212:21:202
54896099270,25cyclictest0-21swapper/211:46:392
54896099270,24cyclictest0-21swapper/210:10:432
54896099270,24cyclictest0-21swapper/209:42:592
54896099270,1cyclictest0-21swapper/210:56:112
4577091270,6ptp4l441ktimers/308:49:553
548964992623,2cyclictest0-21swapper/307:20:123
54896499260,25cyclictest0-21swapper/311:46:393
54896499260,25cyclictest0-21swapper/309:39:103
54896499260,24cyclictest0-21swapper/309:27:593
54896499260,1cyclictest0-21swapper/309:40:593
548960992622,2cyclictest0-21swapper/210:27:522
548960992622,2cyclictest0-21swapper/210:27:522
548960992622,2cyclictest0-21swapper/207:47:192
54896099260,2cyclictest0-21swapper/207:20:222
54896099260,24cyclictest0-21swapper/210:46:452
54896099260,24cyclictest0-21swapper/208:50:002
54896099260,24cyclictest0-21swapper/208:22:032
54896099260,24cyclictest0-21swapper/207:56:002
54896099260,18cyclictest0-21swapper/211:20:302
548964992523,1cyclictest0-21swapper/312:34:393
548960992522,2cyclictest0-21swapper/212:03:212
548960992522,2cyclictest0-21swapper/211:20:002
548960992522,2cyclictest0-21swapper/209:48:262
4577091250,5ptp4l61490irq/134-eno1-TxRx-007:39:553
548964992421,2cyclictest0-21swapper/312:03:203
231999230,13rtkit-daemon495-21gpm07:05:391
548960991715,1cyclictest0-21swapper/207:34:252
5489609990,2cyclictest0-21swapper/207:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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