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2026-05-22 - 03:52
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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 Fri May 22, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288755499119113,3cyclictest2885976-21kworker/u8:0+flush-179:019:10:011
288755099117101,12cyclictest2929197-21latency_hist21:20:010
288755499116104,9cyclictest1213033-21systemd-journal23:05:011
288755499106100,4cyclictest2976129-21kworker/u8:0+events_unbound00:00:181
28875549910398,4cyclictest2986796-21kworker/u8:0+events_unbound00:30:001
28875509910090,7cyclictest2911617-21latency_hist20:25:010
2887554999687,7cyclictest2913204-21latency_hist20:30:011
2887550999382,8cyclictest2969772-21latency_hist23:25:010
2887554999183,7cyclictest2961860-21kworker/u8:3+events_unbound23:10:001
2887554999085,4cyclictest2968426-21kworker/u8:2+events_unbound23:20:261
2887554999069,12cyclictest2913183-21kworker/u8:2+events_unbound20:50:201
2887554998980,6cyclictest2990766-21kworker/u8:3+flush-179:000:35:211
2887554998883,4cyclictest2914827-21kworker/u8:1+events_unbound21:05:011
2887554998882,4cyclictest2952230-21kworker/u8:0+events_unbound22:50:001
2887554998877,9cyclictest2980951-40mandb00:00:011
2887550998881,5cyclictest2963405-21latency_hist23:05:010
2887550998877,8cyclictest2988941-21latency_hist00:25:000
2887554998778,6cyclictest2943776-21latency_hist22:05:001
2887554998682,3cyclictest2932658-21kworker/u8:2+flush-179:021:40:231
2887554998680,4cyclictest2900458-21kworker/u8:1+events_unbound20:15:011
2887554998579,5cyclictest2976129-21kworker/u8:0+events_unbound23:45:251
2887554998578,5cyclictest2893271-21kworker/u8:0+flush-179:019:30:251
2887554998576,6cyclictest2935808-21latency_hist21:40:011
2887554998478,4cyclictest2893271-21kworker/u8:0+events_unbound19:35:241
2887550998474,7cyclictest2931036-21latency_hist21:25:000
2887550998470,10cyclictest2890695-21kworker/u8:2+events_unbound19:25:010
2887554998378,4cyclictest2926038-21kworker/u8:3+flush-179:021:25:161
2887554998377,4cyclictest2943811-21kworker/u8:3+flush-179:022:15:211
2887554998373,7cyclictest2951993-21latency_hist22:30:001
2887550998374,6cyclictest2897272-21latency_hist19:40:010
2887550998373,7cyclictest2889050-21latency_hist19:15:010
2887550998372,7cyclictest2902084-21kworker/u8:3+flush-179:020:05:130
2887554998276,3cyclictest2952230-21kworker/u8:0+flush-179:022:50:151
2887554998274,5cyclictest2972938-21kworker/u8:4+events_unbound23:40:141
2887550998272,7cyclictest2895413-21kworker/u8:2+flush-179:019:55:170
2887554998176,4cyclictest2926038-21kworker/u8:3+flush-179:021:20:241
2887550998171,7cyclictest2971360-21latency_hist23:30:020
2887550998171,7cyclictest2935856-21kworker/u8:0+flush-179:021:50:210
2887554998072,6cyclictest2953563-21kworker/u8:1+events_unbound23:10:181
2887550997970,6cyclictest2910267-21kworker/u8:3+flush-179:020:35:220
2887550997970,6cyclictest2910267-21kworker/u8:3+flush-179:020:25:120
2887554997873,4cyclictest2893271-21kworker/u8:0+events_unbound19:45:231
2887554997870,4cyclictest2910267-21kworker/u8:3+events_unbound20:35:001
2887554997867,3cyclictest2981913-21kworker/u8:1+flush-179:000:10:271
2887554997768,7cyclictest2904325-21kworker/u8:0+flush-179:020:00:251
2887554997768,6cyclictest2913183-21kworker/u8:2+events_unbound21:05:211
2887550997768,6cyclictest2969807-21kworker/u8:3+flush-179:023:35:130
2887554997668,6cyclictest2890695-21kworker/u8:2+flush-179:019:25:211
2887554997668,6cyclictest2890695-21kworker/u8:2+flush-179:019:25:211
2887554997665,4cyclictest2885976-21kworker/u8:0+flush-179:019:10:221
2887550997669,4cyclictest2910267-21kworker/u8:3+flush-179:020:40:230
2887554997570,3cyclictest2902084-21kworker/u8:3+events_unbound20:05:121
2887554997564,8cyclictest2953563-21kworker/u8:1+flush-179:022:40:001
2887554997564,8cyclictest2953563-21kworker/u8:1+flush-179:022:40:001
2887550997565,8cyclictest2914827-21kworker/u8:1+flush-179:021:25:220
2887554997467,4cyclictest2890695-21kworker/u8:2+events_unbound19:20:351
2887550997364,6cyclictest2981913-21kworker/u8:1+events_unbound00:10:010
2887550997364,6cyclictest2979353-21kworker/u8:2+events_unbound00:15:010
2887554997267,4cyclictest2225994-21kworker/u8:5+flush-179:019:15:201
2887554997266,5cyclictest2949892-21kworker/u8:1+flush-179:022:20:251
2887554997265,4cyclictest2893271-21kworker/u8:0+flush-179:019:40:191
2887550997262,7cyclictest2895424-21latency_hist19:35:010
2887554997166,3cyclictest2914827-21kworker/u8:1+events_unbound21:45:131
2887550997164,5cyclictest2907091-21apt-get20:10:090
2887554997065,4cyclictest2932658-21kworker/u8:2+flush-179:021:54:561
2887554997062,6cyclictest2913183-21kworker/u8:2+events_unbound20:55:131
2887554997059,9cyclictest2986000-21apt-get00:15:111
2887554997059,9cyclictest2986000-21apt-get00:15:111
2887550997060,8cyclictest2955178-21apt-get22:40:010
2887550997060,8cyclictest2955178-21apt-get22:40:000
2887550997060,7cyclictest2906824-21kworker/u8:2+events_unbound20:20:010
2887554996965,3cyclictest2972938-21kworker/u8:4+flush-179:023:50:251
2887550996958,8cyclictest1213033-21systemd-journal19:20:010
2887554996863,4cyclictest2952230-21kworker/u8:0+flush-179:022:55:241
2887554996860,7cyclictest2914827-21kworker/u8:1+events_unbound20:35:191
2887554996759,6cyclictest2943811-21kworker/u8:3+events_unbound22:10:201
288755599662,62cyclictest0-21swapper/220:15:592
2887554996659,5cyclictest2943755-21kworker/u8:0+flush-179:022:05:241
2887554996658,6cyclictest2953563-21kworker/u8:1+events_unbound23:15:141
2887550996658,6cyclictest2893271-21kworker/u8:0+flush-179:019:25:220
2887550996658,6cyclictest2893271-21kworker/u8:0+flush-179:019:25:220
2887550996557,6cyclictest2947208-21latency_hist22:15:010
2887554996460,3cyclictest2913183-21kworker/u8:2+flush-179:020:45:221
2887554996460,3cyclictest2900458-21kworker/u8:1+flush-179:019:55:271
288755599632,1cyclictest0-21swapper/221:00:002
2887554996354,7cyclictest2953563-21kworker/u8:1+flush-179:022:35:011
2887550996357,5cyclictest2986796-21kworker/u8:0+events_unbound00:40:010
2887550996352,8cyclictest2952230-21kworker/u8:0+flush-179:022:45:220
288755599620,2cyclictest0-21swapper/219:16:002
2887554996258,3cyclictest2926038-21kworker/u8:3+flush-179:021:30:131
2887554996258,3cyclictest2926038-21kworker/u8:3+flush-179:021:30:131
2887554996256,4cyclictest2986796-21kworker/u8:0+events_unbound00:20:131
2887554996253,6cyclictest2943811-21kworker/u8:3+events_unbound22:40:151
2887550996255,5cyclictest2913183-21kworker/u8:2+flush-179:021:10:240
2887557996159,1cyclictest0-21swapper/323:10:593
288755499611,57cyclictest1-21systemd23:40:011
2887554995952,6cyclictest2913183-21kworker/u8:2+events_unbound21:10:151
2887550995953,5cyclictest2976129-21kworker/u8:0+events_unbound00:05:000
2887550995951,5cyclictest2952230-21kworker/u8:0+events_unbound23:30:130
2887550995853,4cyclictest2953563-21kworker/u8:1+flush-179:023:15:220
288755099580,56cyclictest1-21systemd21:45:010
2887554995747,7cyclictest2952230-21kworker/u8:0+events_unbound23:30:201
2887550995748,6cyclictest2952230-21kworker/u8:0+flush-179:022:55:160
2887550995653,2cyclictest2953563-21kworker/u8:1+events_unbound23:10:220
2887557995552,2cyclictest0-21swapper/322:46:593
2887550995549,4cyclictest2943811-21kworker/u8:3+flush-179:022:30:160
2887550995548,5cyclictest2986796-21kworker/u8:0+flush-179:000:25:210
2887550995546,6cyclictest1213033-21systemd-journal20:55:200
2887550995545,7cyclictest2945377-21apt-get22:10:000
2887554995349,3cyclictest2908412-21kworker/u8:0+flush-179:020:15:191
2887550995344,8cyclictest2943811-21kworker/u8:3+flush-179:022:25:260
2887550995247,4cyclictest2914827-21kworker/u8:1+flush-179:021:45:250
2887550995244,6cyclictest2926038-21kworker/u8:3+flush-179:021:30:160
2887550995244,6cyclictest2926038-21kworker/u8:3+flush-179:021:30:150
2887550995242,8cyclictest2897548-21apt-get19:40:100
4577091510,14ptp4l61490irq/134-eno1-TxRx-019:10:003
2887554995147,3cyclictest2986796-21kworker/u8:0+events_unbound00:30:261
2887554995146,4cyclictest2981913-21kworker/u8:1+flush-179:000:05:181
2887550995144,5cyclictest2952230-21kworker/u8:0+flush-179:022:50:250
2887550995144,5cyclictest1213033-21systemd-journal21:05:080
2887550995044,4cyclictest2913183-21kworker/u8:2+flush-179:020:50:210
2887557994947,1cyclictest0-21swapper/319:16:003
2887550994944,4cyclictest2976129-21kworker/u8:0+flush-179:023:45:230
2887550994944,4cyclictest2900458-21kworker/u8:1+events_unbound19:50:230
2887550994944,4cyclictest2900458-21kworker/u8:1+events_unbound19:50:220
2887550994942,5cyclictest2947186-21kworker/u8:0+flush-179:022:20:140
2887550994942,4cyclictest2972938-21kworker/u8:4+flush-179:023:50:220
2887550994941,5cyclictest2919661-21kworker/u8:0+events_unbound21:00:200
2887557994846,1cyclictest0-21swapper/321:00:003
2887554994844,3cyclictest2914827-21kworker/u8:1+flush-179:021:15:271
2887550994839,8cyclictest2947466-21apt-get22:15:120
2887557994745,1cyclictest0-21swapper/320:16:003
2887550994738,6cyclictest2972938-21kworker/u8:4+events_unbound23:55:260
2887555994642,2cyclictest0-21swapper/223:47:592
2887554994540,4cyclictest2900458-21kworker/u8:1+flush-179:020:20:231
2887550994536,7cyclictest2990785-21apt-get00:30:120
2887554994440,3cyclictest2935856-21kworker/u8:0+events_unbound21:55:251
2887550994234,5cyclictest2935856-21kworker/u8:0+flush-179:021:55:230
288755799410,39cyclictest2976154-21turbostat23:45:013
2887550994134,6cyclictest2943811-21kworker/u8:3+events_unbound22:40:010
288755099411,3cyclictest2914799-21cron20:35:000
2887557994034,4cyclictest2974558-21turbostat23:40:003
288755799400,38cyclictest2905256-21turbostat20:05:003
2887550994034,5cyclictest2961860-21kworker/u8:3+flush-179:023:05:220
2887550994031,7cyclictest2900458-21kworker/u8:1+flush-179:019:50:010
288755099400,39cyclictest2918056-21turbostat20:49:550
288755799390,4cyclictest2892255-21turbostat19:25:003
2887550993935,3cyclictest1-21systemd23:45:010
288755099390,37cyclictest2935820-21munin-plugin-st21:39:590
2887557993835,2cyclictest0-21swapper/321:14:593
2887555993835,2cyclictest0-21swapper/221:53:002
2887555993835,2cyclictest0-21swapper/221:34:002
2887555993835,2cyclictest0-21swapper/221:34:002
288755599380,36cyclictest0-21swapper/221:43:582
288755599380,35cyclictest0-21swapper/221:49:552
2887555993734,2cyclictest0-21swapper/223:10:592
2887554993733,3cyclictest2910267-21kworker/u8:3+flush-179:020:40:191
288755499370,1cyclictest0-21swapper/123:28:581
2887550993735,1cyclictest0-21swapper/022:04:550
4577091360,3ptp4l441ktimers/319:40:113
2887557993634,1cyclictest0-21swapper/300:25:593
2887557993634,1cyclictest0-21swapper/300:03:593
2887557993633,2cyclictest0-21swapper/319:26:593
2887557993633,2cyclictest0-21swapper/319:26:593
288755799360,35cyclictest0-21swapper/321:06:583
288755799360,35cyclictest0-21swapper/320:28:583
288755799360,35cyclictest0-21swapper/300:07:593
288755799360,1cyclictest0-21swapper/319:56:593
2887555993633,2cyclictest0-21swapper/200:00:592
288755599360,1cyclictest0-21swapper/219:34:552
2887550993632,2cyclictest714-21Xorg20:02:000
2887557993533,1cyclictest0-21swapper/321:28:593
2887557993533,1cyclictest0-21swapper/320:12:583
2887557993533,1cyclictest0-21swapper/319:11:593
2887557993529,5cyclictest2964998-21turbostat23:10:003
2887555993532,2cyclictest0-21swapper/223:34:002
2887555993532,2cyclictest0-21swapper/221:19:552
2887555993532,2cyclictest0-21swapper/219:13:592
2887557993432,1cyclictest0-21swapper/323:03:593
2887557993432,1cyclictest0-21swapper/322:09:543
2887557993431,2cyclictest0-21swapper/300:39:553
2887557993428,5cyclictest2971370-21turbostat23:30:013
2887555993431,2cyclictest0-21swapper/200:35:592
2887554993429,4cyclictest2900458-21kworker/u8:1+events_unbound19:50:031
2887554993429,4cyclictest2900458-21kworker/u8:1+events_unbound19:50:021
2887557993331,1cyclictest0-21swapper/323:34:593
2887557993331,1cyclictest0-21swapper/320:43:593
2887557993330,2cyclictest0-21swapper/322:12:583
2887557993328,4cyclictest2985752-21turbostat00:15:003
2887555993330,2cyclictest0-21swapper/223:21:592
2887555993330,2cyclictest0-21swapper/223:02:592
2887555993330,2cyclictest0-21swapper/200:21:592
2887550993327,4cyclictest2987402-21latency_hist00:20:010
2887550993327,4cyclictest2987402-21latency_hist00:20:010
2887555993230,1cyclictest0-21swapper/222:39:592
2887555993230,1cyclictest0-21swapper/222:39:582
2887555993229,2cyclictest0-21swapper/219:27:592
2887555993229,2cyclictest0-21swapper/219:27:592
2887555993229,2cyclictest0-21swapper/200:17:592
2887555993229,2cyclictest0-21swapper/200:17:592
288755599310,1cyclictest0-21swapper/220:44:562
4577091300,7ptp4l441ktimers/322:25:003
4577091300,7ptp4l441ktimers/319:40:003
2887555993027,2cyclictest0-21swapper/222:20:592
2887555993027,2cyclictest0-21swapper/221:20:032
288755599300,2cyclictest0-21swapper/222:05:122
288755599300,27cyclictest0-21swapper/219:47:002
288755599300,23cyclictest0-21swapper/221:00:142
4577091290,7ptp4l441ktimers/321:35:013
4577091290,7ptp4l441ktimers/321:35:003
4577091290,6ptp4l61490irq/134-eno1-TxRx-021:50:013
4577091290,6ptp4l441ktimers/322:55:013
4577091290,6ptp4l441ktimers/322:30:003
4577091290,6ptp4l441ktimers/321:25:003
4577091290,6ptp4l441ktimers/300:15:013
4577091290,6ptp4l441ktimers/300:15:013
2887557992927,1cyclictest0-21swapper/322:52:003
2887557992927,1cyclictest0-21swapper/300:30:143
2887557992924,4cyclictest2980927-21turbostat00:00:003
2887555992926,2cyclictest0-21swapper/223:15:122
2887555992926,2cyclictest0-21swapper/222:50:122
2887555992926,2cyclictest0-21swapper/220:20:592
2887555992926,2cyclictest0-21swapper/219:35:122
2887555992925,2cyclictest0-21swapper/221:35:152
288755599290,27cyclictest0-21swapper/223:50:132
288755599290,27cyclictest0-21swapper/223:25:132
288755599290,27cyclictest0-21swapper/223:06:592
288755599290,27cyclictest0-21swapper/222:15:122
288755599290,27cyclictest0-21swapper/222:10:132
288755599290,27cyclictest0-21swapper/222:00:592
288755599290,27cyclictest0-21swapper/220:30:122
288755599290,27cyclictest0-21swapper/200:30:142
288755599290,27cyclictest0-21swapper/200:05:132
288755599290,1cyclictest0-21swapper/222:45:122
4577091280,7ptp4l441ktimers/300:25:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-021:40:003
4577091280,6ptp4l61490irq/134-eno1-TxRx-020:35:013
4577091280,6ptp4l441ktimers/321:55:003
4577091280,6ptp4l441ktimers/320:40:013
4577091280,6ptp4l441ktimers/319:50:013
4577091280,5ptp4l61490irq/134-eno1-TxRx-022:05:003
2887557992826,1cyclictest0-21swapper/323:16:593
2887557992825,2cyclictest0-21swapper/322:25:133
2887557992825,2cyclictest0-21swapper/321:20:013
288755799280,27cyclictest0-21swapper/322:15:133
288755799280,26cyclictest0-21swapper/321:00:133
2887555992825,2cyclictest0-21swapper/223:40:132
2887555992825,2cyclictest0-21swapper/220:50:582
2887555992825,2cyclictest0-21swapper/219:21:592
288755599282,1cyclictest0-21swapper/219:51:592
288755599282,1cyclictest0-21swapper/219:51:592
288755599280,2cyclictest0-21swapper/222:25:142
4577091270,6ptp4l441ktimers/323:24:553
4577091270,6ptp4l441ktimers/322:39:563
4577091270,6ptp4l441ktimers/322:39:553
4577091270,6ptp4l441ktimers/320:25:013
4577091270,5ptp4l441ktimers/321:59:593
4577091270,4ptp4l441ktimers/323:54:563
2887557992725,1cyclictest0-21swapper/321:40:123
288755799270,26cyclictest0-21swapper/319:33:593
288755599270,25cyclictest0-21swapper/222:32:592
288755599270,25cyclictest0-21swapper/219:57:592
288755599270,1cyclictest0-21swapper/200:26:592
4577091260,5ptp4l61490irq/134-eno1-TxRx-023:50:003
4577091260,4ptp4l441ktimers/322:44:553
2887555992624,1cyclictest0-21swapper/222:40:032
2887555992624,1cyclictest0-21swapper/220:29:592
2887555992623,2cyclictest0-21swapper/221:57:582
2887555992623,2cyclictest0-21swapper/220:07:592
288755599260,24cyclictest0-21swapper/220:35:112
4577091250,5ptp4l61490irq/134-eno1-TxRx-020:49:593
4577091250,4ptp4l61490irq/134-eno1-TxRx-019:54:563
4577091250,4ptp4l61490irq/134-eno1-TxRx-019:54:553
4577091250,4ptp4l441ktimers/320:54:563
288755599250,24cyclictest0-21swapper/221:08:592
4577091240,4ptp4l61490irq/134-eno1-TxRx-020:09:553
2887555992421,2cyclictest0-21swapper/223:56:592
2887555992421,2cyclictest0-21swapper/223:35:592
231999240,12rtkit-daemon2886158-21apt-get19:05:140
2887555992320,2cyclictest0-21swapper/221:27:582
2887555992219,2cyclictest0-21swapper/221:11:582
2887555992219,2cyclictest0-21swapper/200:14:552
2887555992218,2cyclictest0-21swapper/222:55:142
2887555992119,1cyclictest0-21swapper/220:14:592
2887555992118,2cyclictest0-21swapper/220:02:002
2887555992017,2cyclictest0-21swapper/219:41:592
2887555991916,2cyclictest0-21swapper/220:47:002
28875559930,2cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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