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2026-01-08 - 17:54
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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 Jan 08, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
719342999681,5cyclictest793244-21kworker/u8:2+events_unbound11:10:231
719339999385,6cyclictest816335-21cp12:20:010
719339999080,8cyclictest798282-21/usr/sbin/munin11:25:220
719339999079,8cyclictest819513-21latency_hist12:30:010
719347998856,1cyclictest0-21swapper/310:14:593
719342998681,4cyclictest790120-21kworker/u8:1+events_unbound12:05:231
719342998478,4cyclictest757153-21kworker/u8:1+events_unbound09:30:011
719342998474,8cyclictest808342-21/usr/sbin/munin11:55:221
719339998471,10cyclictest510-21rs:main0
719342998173,3cyclictest775195-21kworker/u8:0+events_unbound10:40:191
719342998170,4cyclictest798020-21kworker/u8:2+events_unbound11:30:181
719342997974,4cyclictest764588-21kworker/u8:0+events_unbound09:35:251
719342997973,4cyclictest786404-21kworker/u8:3+flush-179:010:45:201
719342997774,2cyclictest806775-21kworker/u8:3+events_unbound12:20:231
719342997768,7cyclictest790074-21latency_hist11:00:011
719342997765,9cyclictest745524-21apt-get08:35:001
719339997766,8cyclictest763802-21apt-get09:30:120
719342997571,3cyclictest742311-21kworker/u8:1+flush-179:008:40:191
719342997569,4cyclictest722731-21kworker/u8:0+flush-179:007:35:191
719342997469,4cyclictest771538-21kworker/u8:2+events_unbound10:05:251
719342997468,5cyclictest757167-21kworker/u8:3+events_unbound09:40:241
719342997368,4cyclictest722731-21kworker/u8:0+events_unbound08:10:101
719339997364,7cyclictest732744-21/usr/sbin/munin07:50:230
719342997266,4cyclictest790120-21kworker/u8:1+events_unbound12:25:161
719342997263,7cyclictest751047-21/usr/sbin/munin08:50:231
719339997262,8cyclictest762199-21/usr/sbin/munin09:25:230
719342997166,4cyclictest798020-21kworker/u8:2+events_unbound11:25:211
719342997059,8cyclictest778400-21latency_hist10:20:011
719342996964,4cyclictest814518-21kworker/u8:0+events_unbound12:15:231
719342996963,4cyclictest798020-21kworker/u8:2+events_unbound11:35:161
719342996963,4cyclictest781620-21kworker/u8:3+events_unbound10:35:141
719342996864,3cyclictest790120-21kworker/u8:1+flush-179:011:20:241
719342996860,6cyclictest757153-21kworker/u8:1+events_unbound09:30:181
719339996855,10cyclictest800432-21diskstats11:30:130
719342996762,4cyclictest757167-21kworker/u8:3+events_unbound09:20:221
719342996762,4cyclictest757167-21kworker/u8:3+events_unbound09:20:221
719342996758,7cyclictest768569-21/usr/sbin/munin09:45:211
719342996661,4cyclictest727748-21kworker/u8:1+events_unbound07:40:241
719342996660,4cyclictest771538-21kworker/u8:2+events_unbound10:00:031
719342996561,3cyclictest742323-21kworker/u8:2+events_unbound08:25:131
719342996561,3cyclictest717748-21kworker/u8:3+events_unbound07:15:241
719342996557,3cyclictest806775-21kworker/u8:3+events_unbound12:30:221
719342996459,4cyclictest786404-21kworker/u8:3+flush-179:011:05:261
719342996458,4cyclictest735657-21kworker/u8:3+events_unbound08:20:171
719339996453,8cyclictest820029-21apt-get12:30:110
719342996358,4cyclictest727748-21kworker/u8:1+flush-179:007:50:221
719342996353,7cyclictest760363-21latency_hist09:20:011
719339996359,3cyclictest735657-21kworker/u8:3+events_unbound08:20:510
719339996355,6cyclictest787954-21latency_hist10:50:010
719342996258,3cyclictest706546-21kworker/u8:1+events_unbound07:10:241
719342996257,4cyclictest806775-21kworker/u8:3+events_unbound11:50:211
719342996257,4cyclictest742311-21kworker/u8:1+events_unbound08:45:231
719342996253,3cyclictest720800-21kworker/u8:2+events_unbound07:25:211
719339996258,3cyclictest806775-21kworker/u8:3+events_unbound11:51:540
719342996152,6cyclictest804674-21latency_hist11:45:001
719342996057,2cyclictest775195-21kworker/u8:0+flush-179:010:30:191
719342996055,4cyclictest790037-21kworker/u8:0+events_unbound11:00:191
719339996056,3cyclictest790120-21kworker/u8:1+events_unbound12:22:540
719339996056,3cyclictest742311-21kworker/u8:1+events_unbound08:34:530
719342995953,4cyclictest790120-21kworker/u8:1+flush-179:012:35:141
719342995953,4cyclictest734330-21kworker/u8:2+events_unbound07:55:151
719339995751,5cyclictest750858-21kworker/u8:2+events_unbound09:00:000
719339995748,7cyclictest510-21rs:main0
719347995653,2cyclictest0-21swapper/311:47:583
719342995647,3cyclictest775195-21kworker/u8:0+events_unbound10:25:201
719339995652,3cyclictest788756-21kworker/u8:2+events_unbound10:55:020
719339995651,4cyclictest717748-21kworker/u8:3+events_unbound07:20:020
719339995551,3cyclictest727748-21kworker/u8:1+events_unbound07:36:060
719339995549,5cyclictest775195-21kworker/u8:0+flush-179:010:20:210
719342995450,3cyclictest806775-21kworker/u8:3+events_unbound12:00:241
719342995450,3cyclictest745486-21kworker/u8:3+events_unbound08:35:121
719339995449,4cyclictest720800-21kworker/u8:2+events_unbound07:42:530
719342995349,3cyclictest747873-21kworker/u8:0+flush-179:009:00:201
719342995347,4cyclictest722731-21kworker/u8:0+events_unbound08:00:141
719342995345,3cyclictest775195-21kworker/u8:0+flush-179:010:14:551
719339995349,3cyclictest790120-21kworker/u8:1+events_unbound11:42:530
719339995248,3cyclictest822938-21kworker/u8:0+events_unbound12:39:550
719339995246,5cyclictest719336-21cyclictest11:46:590
719342995147,3cyclictest786404-21kworker/u8:3+events_unbound10:50:211
719339995147,3cyclictest790120-21kworker/u8:1+events_unbound11:16:550
719339995146,4cyclictest771538-21kworker/u8:2+events_unbound10:01:070
719342994944,4cyclictest747873-21kworker/u8:0+flush-179:008:55:541
719339994945,3cyclictest781620-21kworker/u8:3+events_unbound10:32:540
719342994843,4cyclictest790120-21kworker/u8:1+events_unbound12:10:121
719342994843,4cyclictest775195-21kworker/u8:0+flush-179:010:20:151
719339994843,4cyclictest798020-21kworker/u8:2+events_unbound11:23:540
719339994841,6cyclictest743962-21unin-run08:30:010
719339994837,9cyclictest760918-21diskstats09:20:140
719339994837,9cyclictest760918-21diskstats09:20:140
719342994741,4cyclictest755598-21turbostat09:09:551
719342994739,6cyclictest771503-21latency_hist09:55:001
719339994743,3cyclictest775195-21kworker/u8:0+events_unbound10:39:590
719339994739,6cyclictest789801-21latency_hist10:55:010
4577091470,13ptp4l441ktimers/307:10:003
719342994641,4cyclictest727748-21kworker/u8:1+events_unbound07:45:221
719342994641,4cyclictest727748-21kworker/u8:1+events_unbound07:45:211
719342994641,4cyclictest717748-21kworker/u8:3+flush-179:007:30:221
719339994642,3cyclictest764588-21kworker/u8:0+events_unbound09:51:080
719339994642,3cyclictest722731-21kworker/u8:0+events_unbound08:09:560
719339994641,4cyclictest790120-21kworker/u8:1+events_unbound12:00:010
719339994640,4cyclictest719336-21cyclictest09:11:590
719342994541,3cyclictest720800-21kworker/u8:2+events_unbound07:20:221
719342994540,4cyclictest757167-21kworker/u8:3+events_unbound09:10:231
719339994537,7cyclictest721330-21apt-get07:15:120
719339994440,3cyclictest790120-21kworker/u8:1+events_unbound12:05:020
719339994440,3cyclictest747873-21kworker/u8:0+events_unbound08:52:550
719339994432,9cyclictest727704-21latency_hist07:35:010
71933999442,40cyclictest730934-21turbostat07:49:560
71933999442,40cyclictest730934-21turbostat07:49:560
719342994338,4cyclictest771538-21kworker/u8:2+events_unbound09:57:541
719339994341,1cyclictest750858-21kworker/u8:2+events_unbound09:05:010
719339994339,3cyclictest790120-21kworker/u8:1+events_unbound11:56:000
719339994339,3cyclictest727748-21kworker/u8:1+events_unbound07:55:010
719344994238,2cyclictest0-21swapper/207:39:592
71934499420,40cyclictest0-21swapper/209:57:002
719339994237,4cyclictest768369-21systemd-run09:45:010
719339994236,3cyclictest786386-21perf10:45:010
71933999421,39cyclictest266-21systemd-journal09:09:590
71933999420,40cyclictest749238-21turbostat08:49:540
719347994138,2cyclictest0-21swapper/308:21:003
719339994133,4cyclictest0-21swapper/010:29:590
4577091410,6ptp4l431rcuc/311:35:003
71934799400,4cyclictest819530-21turbostat12:30:003
71934799400,39cyclictest791687-21turbostat11:05:013
71934799390,37cyclictest750819-21turbostat08:50:003
719344993935,2cyclictest0-21swapper/210:28:002
71934499390,36cyclictest0-21swapper/210:54:552
719342993934,4cyclictest805170-21kworker/u8:2+events_unbound11:45:241
719339993935,3cyclictest757167-21kworker/u8:3+events_unbound10:12:000
719339993935,3cyclictest722731-21kworker/u8:0+events_unbound08:00:460
719339993931,6cyclictest790120-21kworker/u8:1+events_unbound12:15:010
719339993928,9cyclictest791929-21apt-get11:05:120
71933999390,37cyclictest714-21Xorg09:39:580
719347993836,1cyclictest0-21swapper/312:05:593
719347993836,1cyclictest0-21swapper/309:56:593
71934799380,37cyclictest771510-21turbostat09:54:593
719344993835,2cyclictest0-21swapper/211:04:542
719344993834,2cyclictest0-21swapper/211:16:592
719344993834,2cyclictest0-21swapper/209:21:592
719344993834,2cyclictest0-21swapper/209:21:582
71934499380,36cyclictest0-21swapper/209:01:002
71934499380,35cyclictest0-21swapper/212:27:592
719339993835,2cyclictest0-21swapper/008:41:590
719339993833,3cyclictest778397-21systemctl10:20:000
719339993830,7cyclictest768568-21kworker/u8:1+flush-179:009:45:110
4577091380,6ptp4l431rcuc/308:30:013
719344993734,2cyclictest0-21swapper/208:02:592
719344993734,2cyclictest0-21swapper/207:54:552
719344993733,2cyclictest0-21swapper/211:41:592
719344993733,2cyclictest0-21swapper/210:37:582
71934499370,35cyclictest0-21swapper/212:03:592
71934499370,35cyclictest0-21swapper/208:42:592
71934499370,35cyclictest0-21swapper/208:16:582
719342993732,4cyclictest740785-21systemd-run08:20:011
719339993733,3cyclictest742311-21kworker/u8:1+events_unbound08:38:300
719339993733,3cyclictest706546-21kworker/u8:1+events_unbound07:11:000
719347993634,1cyclictest0-21swapper/309:23:583
719347993634,1cyclictest0-21swapper/309:23:583
71934799360,35cyclictest0-21swapper/312:02:593
71934799360,35cyclictest0-21swapper/310:51:583
71934799360,35cyclictest0-21swapper/310:29:003
71934799360,35cyclictest0-21swapper/308:54:563
71934799360,35cyclictest0-21swapper/308:12:583
719344993633,2cyclictest0-21swapper/208:37:582
71934499360,1cyclictest0-21swapper/210:34:562
719339993629,5cyclictest725205-21gltestperf07:25:170
719339993627,6cyclictest803094-21perf11:40:010
719339993626,6cyclictest737807-21apt-get08:10:080
719339993624,9cyclictest735657-21kworker/u8:3+flush-179:008:15:220
719347993533,1cyclictest0-21swapper/311:19:583
719347993533,1cyclictest0-21swapper/309:50:003
719344993532,2cyclictest0-21swapper/208:23:592
719344993532,2cyclictest0-21swapper/207:42:592
719344993531,2cyclictest0-21swapper/211:37:592
4577091350,6ptp4l61490irq/134-eno1-TxRx-012:25:013
719347993432,1cyclictest0-21swapper/310:34:553
719347993431,2cyclictest0-21swapper/307:39:593
719339993430,3cyclictest786404-21kworker/u8:3+events_unbound11:03:580
4577091340,5ptp4l61490irq/134-eno1-TxRx-010:25:013
719347993331,1cyclictest0-21swapper/309:01:003
719347993331,1cyclictest0-21swapper/308:42:593
719347993331,1cyclictest0-21swapper/308:16:593
719342993329,2cyclictest714-21Xorg11:16:591
719347993230,1cyclictest0-21swapper/311:11:593
71934799320,30cyclictest0-21swapper/309:39:543
719344993230,1cyclictest0-21swapper/211:24:592
719344993229,2cyclictest0-21swapper/211:47:582
719344993229,2cyclictest0-21swapper/209:49:552
719344993228,2cyclictest0-21swapper/212:16:592
719339993228,3cyclictest771538-21kworker/u8:2+events_unbound09:57:570
719347993129,1cyclictest0-21swapper/312:19:553
719347993129,1cyclictest0-21swapper/308:08:593
719347993129,1cyclictest0-21swapper/307:23:593
719347993128,2cyclictest0-21swapper/307:53:003
719347993128,2cyclictest0-21swapper/307:40:123
719344993128,2cyclictest0-21swapper/208:09:552
719344993127,2cyclictest0-21swapper/212:14:592
719344993127,2cyclictest0-21swapper/210:13:002
71934499310,1cyclictest0-21swapper/209:54:592
719342993127,3cyclictest737265-21kworker/u8:1+events_unbound08:08:041
719344993027,2cyclictest0-21swapper/210:05:582
719344993026,2cyclictest0-21swapper/209:25:582
719347992927,1cyclictest0-21swapper/311:41:593
719347992927,1cyclictest0-21swapper/311:25:123
719347992927,1cyclictest0-21swapper/310:04:563
719347992926,2cyclictest814483-21turbostat12:15:003
719347992926,2cyclictest0-21swapper/309:30:133
719344992926,2cyclictest0-21swapper/207:23:002
719344992925,2cyclictest0-21swapper/211:58:592
719344992925,2cyclictest0-21swapper/207:56:592
71934499290,27cyclictest0-21swapper/212:30:022
71934499290,27cyclictest0-21swapper/212:20:032
71934499290,27cyclictest0-21swapper/211:30:012
71934499290,27cyclictest0-21swapper/211:25:132
71934499290,27cyclictest0-21swapper/211:10:112
71934499290,27cyclictest0-21swapper/210:00:032
71934499290,27cyclictest0-21swapper/207:25:012
71934499290,27cyclictest0-21swapper/207:10:122
719339992925,3cyclictest790120-21kworker/u8:1+events_unbound11:11:060
719347992826,1cyclictest0-21swapper/312:30:023
719347992826,1cyclictest0-21swapper/310:05:143
719347992826,1cyclictest0-21swapper/308:55:143
719347992826,1cyclictest0-21swapper/308:02:593
719347992825,2cyclictest0-21swapper/310:37:583
71934799280,27cyclictest0-21swapper/309:10:133
71934799280,27cyclictest0-21swapper/307:10:123
71934799280,26cyclictest0-21swapper/311:05:133
71934799280,26cyclictest0-21swapper/307:45:123
71934799280,26cyclictest0-21swapper/307:45:123
719344992825,2cyclictest0-21swapper/210:45:112
719344992825,2cyclictest0-21swapper/209:30:132
719344992825,2cyclictest0-21swapper/208:55:132
719344992825,2cyclictest0-21swapper/208:25:122
71934499280,2cyclictest0-21swapper/209:10:122
71934499280,2cyclictest0-21swapper/207:45:122
71934499280,2cyclictest0-21swapper/207:45:112
4577091280,7ptp4l61490irq/134-eno1-TxRx-011:55:003
4577091280,7ptp4l441ktimers/311:40:013
4577091280,7ptp4l441ktimers/307:30:003
719347992725,1cyclictest0-21swapper/308:35:023
719344992724,2cyclictest0-21swapper/209:35:592
71934499270,25cyclictest0-21swapper/208:49:002
4577091270,6ptp4l61490irq/134-eno1-TxRx-012:40:003
4577091270,6ptp4l61490irq/134-eno1-TxRx-010:45:013
4577091270,6ptp4l61490irq/134-eno1-TxRx-009:10:003
4577091270,6ptp4l441ktimers/308:00:003
4577091270,5ptp4l441ktimers/309:20:013
719347992624,1cyclictest0-21swapper/310:56:593
71934799260,24cyclictest0-21swapper/307:15:213
719344992623,2cyclictest0-21swapper/207:31:012
71934499260,1cyclictest0-21swapper/210:56:592
231999260,15rtkit-daemon718115-21cstates07:05:161
719347992522,2cyclictest0-21swapper/311:24:593
71934799250,24cyclictest0-21swapper/307:30:323
719344992523,1cyclictest0-21swapper/209:09:592
719344992522,2cyclictest0-21swapper/208:31:592
719344992522,2cyclictest0-21swapper/207:15:252
719344992521,2cyclictest0-21swapper/210:44:592
71934499250,24cyclictest0-21swapper/210:20:582
71933999258,4cyclictest14-21ksoftirqd/007:10:010
4577091250,6ptp4l441ktimers/308:34:553
4577091250,5ptp4l61490irq/134-eno1-TxRx-011:59:553
4577091250,5ptp4l61490irq/134-eno1-TxRx-010:19:543
4577091250,4ptp4l441ktimers/309:45:003
4577091250,4ptp4l441ktimers/309:29:553
719344992421,2cyclictest0-21swapper/208:50:592
719344992320,2cyclictest0-21swapper/211:07:002
719344992220,1cyclictest0-21swapper/209:20:002
719344992219,2cyclictest0-21swapper/211:51:592
719347992119,1cyclictest0-21swapper/310:45:103
719344991916,2cyclictest0-21swapper/208:13:592
719344991512,2cyclictest0-21swapper/209:40:582
719344991412,1cyclictest0-21swapper/210:19:582
719344991411,2cyclictest0-21swapper/212:36:592
7193449980,7cyclictest0-21swapper/212:05:042
7193449930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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