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2026-06-12 - 22:00
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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 Jun 12, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
300767299139133,5cyclictest3065723-21kworker/u8:3+events_unbound11:00:000
300767299129119,7cyclictest3078463-21apt-get10:49:320
300767299119108,8cyclictest3036784-21latency_hist08:40:010
300767299117112,4cyclictest3044719-21kworker/u8:2+events_unbound09:45:000
300767299115106,6cyclictest3099556-21kworker/u8:3+flush-179:012:20:000
300767299114106,6cyclictest3072045-21kworker/u8:0+events_unbound10:35:010
300767299112106,4cyclictest3021865-21kworker/u8:2+flush-179:008:10:270
30076729911195,12cyclictest1213033-21systemd-journal08:00:010
300767299111107,3cyclictest3021865-21kworker/u8:2+flush-179:008:05:270
300767299111105,4cyclictest3019492-21kworker/u8:0+flush-179:007:45:250
30076729910998,8cyclictest3054280-21latency_hist09:35:010
300767299109102,5cyclictest3007510-21kworker/u8:0+events_unbound07:25:280
300767299109101,5cyclictest3072045-21kworker/u8:0+events_unbound10:45:010
300767299109100,6cyclictest3102700-21kworker/u8:1+events_unbound12:15:000
300767299108103,4cyclictest3044719-21kworker/u8:2+flush-179:009:25:250
300767299108102,4cyclictest3092232-21kworker/u8:0+events_unbound11:30:220
30076759910797,7cyclictest3112515-21latency_hist12:35:001
30076729910694,9cyclictest3044737-21latency_hist09:05:010
30076729910495,6cyclictest3063176-21kworker/u8:0+events_unbound10:05:140
30076759910291,8cyclictest3014190-21latency_hist07:30:021
30076729910197,3cyclictest3048904-21kworker/u8:3+flush-179:009:50:260
30076729910196,4cyclictest3065723-21kworker/u8:3+flush-179:010:35:250
30076729910189,9cyclictest3062515-21latency_hist10:00:010
30076729910088,8cyclictest3022408-21kworker/u8:3+flush-179:008:30:210
3007675999990,6cyclictest3041520-21kworker/u8:0+flush-179:009:10:001
3007672999892,4cyclictest3036741-21kworker/u8:1+flush-179:008:50:260
3007672999888,7cyclictest3039951-21latency_hist08:50:010
3007672999790,5cyclictest3097917-21kworker/u8:0+events_unbound12:05:010
3007672999691,4cyclictest3007510-21kworker/u8:0+events_unbound07:30:290
3007672999684,9cyclictest3084926-21kworker/u8:2+events_unbound11:25:180
3007672999588,5cyclictest3044719-21kworker/u8:2+events_unbound10:25:240
3007672999588,5cyclictest3044719-21kworker/u8:2+events_unbound10:25:230
3007672999585,7cyclictest3075514-21kworker/u8:1+events_unbound11:05:170
3007672999385,5cyclictest3007510-21kworker/u8:0+events_unbound07:35:020
3007672999384,6cyclictest3021865-21kworker/u8:2+flush-179:008:00:230
3007672999287,4cyclictest3092232-21kworker/u8:0+events_unbound11:35:240
3007672999287,4cyclictest3044719-21kworker/u8:2+events_unbound09:05:200
3007672999285,5cyclictest3083333-21kworker/u8:0+events_unbound11:10:150
3007672999274,14cyclictest1213033-21systemd-journal11:45:000
3007672999186,4cyclictest3044719-21kworker/u8:2+flush-179:009:35:190
3007672999186,3cyclictest3088182-21kworker/u8:1+flush-179:011:50:220
3007672999185,4cyclictest3065723-21kworker/u8:3+flush-179:011:00:220
3007672999179,9cyclictest3012349-21latency_hist07:25:010
3007675999080,7cyclictest3025625-21latency_hist08:05:011
3007672999083,4cyclictest3052729-21kworker/u8:0+flush-179:009:45:210
3007675998977,10cyclictest3093411-21apt-get11:35:101
3007672998985,3cyclictest3084978-21kworker/u8:3+events_unbound11:15:220
3007672998985,3cyclictest3084978-21kworker/u8:3+events_unbound11:15:210
3007672998985,3cyclictest3048904-21kworker/u8:3+events_unbound09:15:270
3007675998880,5cyclictest3048904-21kworker/u8:3+flush-179:009:20:261
3007675998875,9cyclictest3065159-21kworker/u8:1+events_unbound10:15:251
3007672998876,9cyclictest1213033-21systemd-journal08:59:590
3007672998783,3cyclictest3041520-21kworker/u8:0+flush-179:009:10:260
3007672998783,3cyclictest3041520-21kworker/u8:0+flush-179:009:10:250
3007672998778,6cyclictest3021865-21kworker/u8:2+events_unbound08:20:170
3007672998677,6cyclictest3097917-21kworker/u8:0+flush-179:011:55:190
3007672998581,3cyclictest3065159-21kworker/u8:1+events_unbound10:10:220
3007672998580,4cyclictest3017702-21kworker/u8:1+flush-179:007:50:250
3007672998568,7cyclictest3022408-21kworker/u8:3+events_unbound08:40:260
3007672998477,4cyclictest3065159-21kworker/u8:1+flush-179:010:15:220
3007675998372,8cyclictest3097917-21kworker/u8:0+flush-179:012:00:001
3007672998378,3cyclictest3007510-21kworker/u8:0+events_unbound07:10:130
3007672998376,4cyclictest3107788-21kworker/u8:2+events_unbound12:25:190
3007672998369,10cyclictest1213033-21systemd-journal10:20:260
3007675998274,5cyclictest2812340-21kworker/u8:6+flush-179:007:15:161
3007672998278,3cyclictest3084978-21kworker/u8:3+events_unbound11:20:270
3007672998176,4cyclictest3102700-21kworker/u8:1+flush-179:012:05:260
3007675998072,5cyclictest3063176-21kworker/u8:0+events_unbound10:05:001
3007675998071,6cyclictest3097917-21kworker/u8:0+flush-179:011:50:001
3007675997964,11cyclictest1213033-21systemd-journal10:25:001
3007672997968,9cyclictest3111183-21apt-get12:30:100
3007672997873,3cyclictest3099556-21kworker/u8:3+events_unbound12:20:220
3007672997771,4cyclictest3048904-21kworker/u8:3+flush-179:009:20:160
3007672997768,6cyclictest3027245-21kworker/u8:1+events_unbound08:25:150
3007675997562,9cyclictest3017702-21kworker/u8:1+flush-179:007:40:241
3007675997561,10cyclictest3022408-21kworker/u8:3+flush-179:008:10:241
3007675997558,9cyclictest3083333-21kworker/u8:0+events_unbound11:10:211
3007675997461,9cyclictest3041520-21kworker/u8:0+events_unbound09:10:241
3007675997461,9cyclictest3041520-21kworker/u8:0+events_unbound09:10:241
3007675997450,22cyclictest3029034-21/usr/sbin/munin08:15:171
3007672997465,6cyclictest3080162-21latency_hist10:55:020
3007675997262,8cyclictest3078531-21dpkg10:49:401
3007675997165,4cyclictest3091823-21apt-get11:30:111
3007675997159,8cyclictest3099501-21kworker/u8:2+flush-179:012:00:151
3007675997158,9cyclictest3048904-21kworker/u8:3+flush-179:009:30:261
3007672997165,4cyclictest3022408-21kworker/u8:3+flush-179:008:15:260
3007672997164,4cyclictest3088182-21kworker/u8:1+flush-179:011:46:260
3007675997060,8cyclictest3072297-21/usr/sbin/munin10:30:151
3007675996912,55cyclictest1-21systemd09:00:001
3007675996856,9cyclictest3044719-21kworker/u8:2+events_unbound10:30:001
3007675996856,9cyclictest3044719-21kworker/u8:2+events_unbound10:29:591
3007675996855,10cyclictest3106226-21cat12:15:011
3007675996758,7cyclictest1213033-21systemd-journal09:04:231
3007675996662,2cyclictest3033581-21latency_hist08:30:011
3007675996653,8cyclictest3092232-21kworker/u8:0+flush-179:011:40:241
3007672996661,4cyclictest3099556-21kworker/u8:3+flush-179:012:35:250
3007676996562,2cyclictest0-21swapper/210:43:002
3007675996558,5cyclictest3019492-21kworker/u8:0+flush-179:007:45:271
3007675996554,8cyclictest3072045-21kworker/u8:0+flush-179:010:55:241
3007675996457,4cyclictest3036741-21kworker/u8:1+flush-179:008:40:001
3007675996450,9cyclictest2812340-21kworker/u8:6+flush-179:007:35:241
3007675996449,5cyclictest3007510-21kworker/u8:0+flush-179:007:30:191
300767599621,59cyclictest1-21systemd12:24:261
3007672996257,4cyclictest3017907-21kworker/u8:2+events_unbound07:43:270
3007672996254,6cyclictest3007531-21latency_hist07:10:020
3007675996154,5cyclictest3112501-21kworker/u8:0+flush-179:012:35:211
3007675996153,4cyclictest3102700-21kworker/u8:1+events_unbound12:05:191
3007675996149,9cyclictest3107788-21kworker/u8:2+flush-179:012:25:141
3007675996147,10cyclictest1213033-21systemd-journal11:10:001
3007675995952,5cyclictest3044719-21kworker/u8:2+flush-179:009:45:261
3007675995950,7cyclictest3022429-21latency_hist07:55:011
3007675995847,7cyclictest3044719-21kworker/u8:2+flush-179:009:25:261
3007675995746,8cyclictest2812340-21kworker/u8:6+flush-179:007:20:221
3007672995753,3cyclictest2812340-21kworker/u8:6+flush-179:007:15:150
3007675995650,4cyclictest3065159-21kworker/u8:1+flush-179:010:05:231
300767599530,2cyclictest714-21Xorg10:38:581
3007675995144,6cyclictest3075514-21kworker/u8:1+events_unbound10:50:231
3007672995143,6cyclictest3060941-21kworker/u8:1+events_unbound10:00:120
4577091500,14ptp4l61490irq/134-eno1-TxRx-007:10:003
3007675995043,4cyclictest3022408-21kworker/u8:3+flush-179:008:45:161
3007675995039,8cyclictest3082023-21apt-get11:00:131
3007675994840,6cyclictest3048904-21kworker/u8:3+flush-179:009:50:211
3007675994838,7cyclictest1213033-21systemd-journal10:45:011
3007675994740,5cyclictest3022408-21kworker/u8:3+flush-179:007:55:201
3007675994740,5cyclictest3021865-21kworker/u8:2+flush-179:008:25:011
3007675994737,7cyclictest1213033-21systemd-journal11:51:261
3007675994642,2cyclictest3055848-21kworker/u8:1+flush-179:009:40:141
3007675994635,7cyclictest3048904-21kworker/u8:3+flush-179:009:35:141
3007675994540,4cyclictest3088182-21kworker/u8:1+events_unbound11:25:221
3007675994524,4cyclictest3027242-21systemd-run08:10:001
3007678994341,1cyclictest0-21swapper/307:53:593
3007675994333,8cyclictest3040205-21apt-get08:50:111
3007675994322,4cyclictest3062477-21sshd09:58:261
300767899420,1cyclictest0-21swapper/311:33:593
3007675994235,5cyclictest3102700-21kworker/u8:1+events_unbound12:15:141
300767899410,39cyclictest3075242-21turbostat10:40:013
3007676994138,2cyclictest0-21swapper/212:27:592
300767599410,4cyclictest3007545-21turbostat07:14:551
3007678993933,5cyclictest3094779-21turbostat11:40:013
300767699390,36cyclictest0-21swapper/208:35:002
300767599390,38cyclictest0-21swapper/108:43:001
3007676993835,2cyclictest0-21swapper/209:11:002
3007676993835,2cyclictest0-21swapper/209:10:592
300767699380,36cyclictest0-21swapper/208:37:592
300767699380,35cyclictest0-21swapper/210:56:002
300767699380,35cyclictest0-21swapper/207:30:002
4577091370,3ptp4l431rcuc/309:24:593
300767899370,34cyclictest0-21swapper/307:40:593
3007676993734,2cyclictest0-21swapper/212:15:592
3007676993734,2cyclictest0-21swapper/210:11:002
3007676993734,2cyclictest0-21swapper/208:12:002
300767699370,35cyclictest0-21swapper/207:50:592
300767699370,2cyclictest0-21swapper/209:20:592
3007675993733,3cyclictest3084926-21kworker/u8:2+flush-179:011:20:021
3007675993733,3cyclictest3084926-21kworker/u8:2+flush-179:011:20:011
3007678993634,1cyclictest0-21swapper/311:17:003
3007678993634,1cyclictest0-21swapper/311:16:593
3007678993634,1cyclictest0-21swapper/308:57:593
300767899360,35cyclictest0-21swapper/309:54:593
300767899360,35cyclictest0-21swapper/308:39:553
300767899360,35cyclictest0-21swapper/307:26:593
300767899360,1cyclictest0-21swapper/307:46:593
3007676993634,1cyclictest0-21swapper/207:59:592
3007676993633,2cyclictest0-21swapper/212:05:592
3007676993633,2cyclictest0-21swapper/210:48:582
3007675993631,4cyclictest3084978-21kworker/u8:3+events_unbound11:20:231
3007678993533,1cyclictest0-21swapper/310:44:593
3007678993533,1cyclictest0-21swapper/310:30:003
3007678993533,1cyclictest0-21swapper/310:29:593
3007678993532,2cyclictest0-21swapper/311:47:593
3007678993532,2cyclictest0-21swapper/309:35:593
300767899350,1cyclictest0-21swapper/310:46:593
300767899350,1cyclictest0-21swapper/308:33:593
3007676993531,2cyclictest0-21swapper/209:04:542
3007675993532,2cyclictest3067312-21systemd-run10:15:001
3007678993432,1cyclictest0-21swapper/308:09:553
3007676993432,1cyclictest0-21swapper/208:49:592
3007676993431,2cyclictest0-21swapper/208:00:592
3007678993331,1cyclictest0-21swapper/312:23:583
3007678993331,1cyclictest0-21swapper/311:23:593
3007678993328,4cyclictest3068881-21turbostat10:20:003
3007676993330,2cyclictest0-21swapper/211:11:002
3007676993330,2cyclictest0-21swapper/209:54:552
3007676993330,2cyclictest0-21swapper/209:38:592
3007676993330,2cyclictest0-21swapper/209:32:592
3007676993330,2cyclictest0-21swapper/207:42:592
3007678993229,2cyclictest0-21swapper/309:18:593
3007676993230,1cyclictest0-21swapper/209:19:592
3007676993230,1cyclictest0-21swapper/208:25:012
3007676993229,2cyclictest0-21swapper/210:19:552
3007676993229,2cyclictest0-21swapper/208:19:552
3007678993129,1cyclictest0-21swapper/312:09:593
3007678993129,1cyclictest0-21swapper/311:13:593
300767899310,31cyclictest0-21swapper/308:49:593
3007676993128,2cyclictest0-21swapper/211:01:592
3007676993128,2cyclictest0-21swapper/210:51:582
3007676993128,2cyclictest0-21swapper/209:06:592
300767599310,29cyclictest0-21swapper/109:15:131
3007678993028,1cyclictest0-21swapper/310:58:593
3007678993027,2cyclictest0-21swapper/311:55:123
3007678993027,2cyclictest0-21swapper/309:13:003
3007678993027,2cyclictest0-21swapper/309:12:593
3007678993027,2cyclictest0-21swapper/307:35:023
300767899302,1cyclictest0-21swapper/310:10:113
300767899300,2cyclictest0-21swapper/309:25:143
3007676993027,2cyclictest0-21swapper/209:40:132
300767699300,2cyclictest0-21swapper/211:30:012
300767699300,28cyclictest0-21swapper/212:15:012
300767699300,28cyclictest0-21swapper/210:05:132
3007675993023,5cyclictest3033836-21apt-get08:30:111
3007678992927,1cyclictest0-21swapper/312:30:593
3007678992927,1cyclictest0-21swapper/309:55:123
300767899290,28cyclictest0-21swapper/308:20:123
300767899290,27cyclictest0-21swapper/312:25:133
300767899290,27cyclictest0-21swapper/309:45:133
300767899290,27cyclictest0-21swapper/307:20:133
300767899290,1cyclictest0-21swapper/309:40:033
3007676992927,1cyclictest0-21swapper/212:35:112
3007676992926,2cyclictest0-21swapper/212:20:132
3007676992926,2cyclictest0-21swapper/211:30:022
3007676992926,2cyclictest0-21swapper/207:15:132
300767699290,2cyclictest0-21swapper/208:51:592
4577091280,5ptp4l441ktimers/307:19:563
3007678992826,1cyclictest0-21swapper/311:25:593
3007678992826,1cyclictest0-21swapper/311:05:113
3007678992826,1cyclictest0-21swapper/307:35:023
300767899280,2cyclictest0-21swapper/307:55:113
300767899280,26cyclictest0-21swapper/312:15:023
300767899280,26cyclictest0-21swapper/312:00:123
300767899280,26cyclictest0-21swapper/311:40:123
3007676992825,2cyclictest0-21swapper/211:45:122
3007676992825,2cyclictest0-21swapper/210:35:142
3007676992825,2cyclictest0-21swapper/207:45:132
300767699280,2cyclictest0-21swapper/207:35:152
300767699280,26cyclictest0-21swapper/211:15:102
300767699280,26cyclictest0-21swapper/211:15:102
4577091270,3ptp4l441ktimers/308:30:003
4577091270,3ptp4l441ktimers/308:05:003
3007678992725,1cyclictest0-21swapper/309:05:133
300767899270,26cyclictest0-21swapper/307:14:593
3007676992724,2cyclictest0-21swapper/212:32:592
3007676992724,2cyclictest0-21swapper/207:24:562
231999270,2rtkit-daemon2318-21rtkit-daemon07:05:151
4577091260,4ptp4l441ktimers/310:10:013
4577091260,3ptp4l61490irq/134-eno1-TxRx-008:15:003
4577091260,3ptp4l441ktimers/308:55:003
4577091260,3ptp4l441ktimers/308:45:013
4577091260,0ptp4l67-21kworker/3:1+events10:00:133
3007678992624,1cyclictest0-21swapper/309:30:593
3007678992623,2cyclictest0-21swapper/311:50:153
300767899260,24cyclictest0-21swapper/308:15:133
3007676992623,2cyclictest0-21swapper/209:59:002
3007676992623,2cyclictest0-21swapper/208:27:592
300767699260,2cyclictest0-21swapper/211:55:132
4577091250,3ptp4l61490irq/134-eno1-TxRx-009:04:563
4577091250,3ptp4l441ktimers/310:35:013
3007678992523,1cyclictest0-21swapper/311:00:593
300767899250,24cyclictest0-21swapper/312:36:593
300767899250,24cyclictest0-21swapper/312:11:593
3007676992523,1cyclictest0-21swapper/211:54:592
3007676992523,1cyclictest0-21swapper/208:45:002
4577091240,3ptp4l441ktimers/310:54:563
4577091240,3ptp4l441ktimers/310:24:563
3007676992421,2cyclictest0-21swapper/211:42:002
3007676992320,2cyclictest0-21swapper/207:30:162
3007676992219,2cyclictest0-21swapper/211:39:552
3007676992119,1cyclictest0-21swapper/209:25:142
3007676992017,2cyclictest0-21swapper/210:32:582
3007676991916,2cyclictest0-21swapper/210:29:002
3007676991916,2cyclictest0-21swapper/210:29:002
3007676991916,2cyclictest0-21swapper/209:45:122
3007676991816,1cyclictest0-21swapper/211:09:592
3007676991815,2cyclictest0-21swapper/210:04:582
3007676991512,2cyclictest0-21swapper/212:03:592
3007676991311,1cyclictest0-21swapper/209:00:002
3007676991310,2cyclictest0-21swapper/208:05:592
300767699119,1cyclictest0-21swapper/211:20:132
30076769975,1cyclictest0-21swapper/207:14:292
30076769974,2cyclictest0-21swapper/210:20:362
30076769930,2cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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