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2026-06-16 - 06:07
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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 Jun 16, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
402735599126115,8cyclictest4120413-40mandb00:00:010
402735599121113,6cyclictest4037369-21kworker/u8:2+events_unbound20:00:010
402735599120112,6cyclictest4028933-21kworker/u8:1+events_unbound20:25:000
402735899116110,4cyclictest4068947-21kworker/u8:2+flush-179:021:45:221
402735599114108,5cyclictest4095666-21kworker/u8:0+flush-179:022:45:000
402735599111106,4cyclictest4065809-21kworker/u8:0+flush-179:021:40:240
40273589911093,8cyclictest4126785-21kworker/u8:1+events_unbound00:20:001
402735599110103,5cyclictest4081902-21kworker/u8:1+events_unbound22:05:240
402735599110103,5cyclictest4028933-21kworker/u8:1+events_unbound19:30:240
402735899109102,5cyclictest4108973-21kworker/u8:1+flush-179:000:00:221
40273589910798,6cyclictest4028933-21kworker/u8:1+events_unbound20:30:231
40273589910791,7cyclictest4068947-21kworker/u8:2+events_unbound21:55:231
402735899107101,4cyclictest2897312-21kworker/u8:3+flush-179:019:40:211
402735899107100,4cyclictest4091474-21kworker/u8:1+flush-179:022:55:261
402735899107100,4cyclictest4091474-21kworker/u8:1+flush-179:022:55:261
40273559910797,4cyclictest4046712-21kworker/u8:3+events_unbound20:10:260
402735599107102,4cyclictest4053698-21kworker/u8:2+flush-179:020:40:230
40273589910698,5cyclictest4095666-21kworker/u8:0+flush-179:022:40:261
40273559910698,6cyclictest4114031-21latency_hist23:40:000
40273559910692,10cyclictest4113999-21kworker/u8:0+flush-179:000:00:170
40273589910493,8cyclictest4060966-21kworker/u8:1+flush-179:021:00:191
40273589910388,13cyclictest4108973-21kworker/u8:1+flush-179:023:45:241
40273559910297,4cyclictest4097884-21kworker/u8:3+events_unbound23:20:240
40273559910293,6cyclictest4099434-21latency_hist22:55:010
40273559910291,4cyclictest4097884-21kworker/u8:3+events_unbound23:15:240
40273589910189,5cyclictest4113999-21kworker/u8:0+events_unbound23:55:251
40273589910092,6cyclictest4028933-21kworker/u8:1+events_unbound20:15:231
40273559910095,4cyclictest4060966-21kworker/u8:1+events_unbound21:05:230
4027355999994,4cyclictest4084554-21kworker/u8:2+flush-179:022:10:240
4027355999989,7cyclictest4067605-21apt-get21:15:120
4027358999792,3cyclictest4110546-21kworker/u8:2+flush-179:023:30:251
4027355999789,4cyclictest4060966-21kworker/u8:1+events_unbound20:55:250
4027355999690,5cyclictest4118824-21kworker/u8:3+events_unbound00:35:240
4027355999690,4cyclictest4128386-21kworker/u8:2+flush-179:000:25:200
4027355999690,4cyclictest4037369-21kworker/u8:2+flush-179:020:05:220
4027355999688,6cyclictest4028933-21kworker/u8:1+events_unbound19:25:120
4027355999688,6cyclictest4028933-21kworker/u8:1+events_unbound19:25:120
4027355999688,5cyclictest2897312-21kworker/u8:3+events_unbound19:40:130
4027358999487,5cyclictest4086735-21kworker/u8:3+flush-179:022:20:001
4027358999480,11cyclictest1213033-21systemd-journal23:25:001
4027355999485,7cyclictest4108973-21kworker/u8:1+events_unbound23:40:140
4027355999484,7cyclictest4089899-21latency_hist22:25:010
4027355999384,6cyclictest4068947-21kworker/u8:2+flush-179:021:30:260
4027358999284,6cyclictest4093071-21latency_hist22:35:011
4027355999287,4cyclictest4124273-21kworker/u8:0+flush-179:000:15:230
4027355999287,4cyclictest4095666-21kworker/u8:0+flush-179:023:05:250
4027355999286,4cyclictest4081902-21kworker/u8:1+events_unbound22:00:180
4027355999286,4cyclictest4068947-21kworker/u8:2+flush-179:021:25:160
4027355999283,3cyclictest4028933-21kworker/u8:1+events_unbound20:35:250
4027355999085,4cyclictest4091529-21kworker/u8:2+flush-179:022:30:260
4027358998983,4cyclictest4095666-21kworker/u8:0+flush-179:022:45:251
4027358998977,5cyclictest4060966-21kworker/u8:1+events_unbound20:55:001
4027355998983,4cyclictest4050527-21kworker/u8:0+flush-179:020:25:210
4027355998982,5cyclictest4028933-21kworker/u8:1+events_unbound20:30:260
4027358998882,4cyclictest2897312-21kworker/u8:3+flush-179:019:20:221
4027358998879,6cyclictest4113999-21kworker/u8:0+events_unbound23:40:221
4027358998867,12cyclictest4028933-21kworker/u8:1+events_unbound19:35:251
4027355998884,3cyclictest4086735-21kworker/u8:3+flush-179:022:25:200
4027355998882,4cyclictest4118824-21kworker/u8:3+events_unbound00:10:240
4027355998882,4cyclictest4068947-21kworker/u8:2+flush-179:021:20:150
4027355998882,4cyclictest4068947-21kworker/u8:2+flush-179:021:20:140
4027355998878,8cyclictest1213033-21systemd-journal19:50:000
4027358998780,5cyclictest4053698-21kworker/u8:2+events_unbound21:00:021
4027358998678,6cyclictest4091529-21kworker/u8:2+flush-179:022:35:241
4027358998478,4cyclictest4108973-21kworker/u8:1+flush-179:023:35:161
4027355998474,8cyclictest1213033-21systemd-journal23:45:200
4027363998353,28cyclictest0-21swapper/322:16:593
4027358998376,5cyclictest4037369-21kworker/u8:2+flush-179:019:55:211
4027355998379,3cyclictest4102678-21kworker/u8:1+flush-179:023:10:250
4027355998376,5cyclictest4108973-21kworker/u8:1+events_unbound23:30:010
4027358998276,4cyclictest4097884-21kworker/u8:3+flush-179:023:15:151
4027358998275,5cyclictest4068947-21kworker/u8:2+flush-179:021:35:171
4027358998176,3cyclictest4118824-21kworker/u8:3+flush-179:000:20:251
4027358998175,4cyclictest4065809-21kworker/u8:0+flush-179:021:40:221
4027358998175,4cyclictest2897312-21kworker/u8:3+flush-179:019:15:001
4027358998174,4cyclictest4028933-21kworker/u8:1+flush-179:020:35:221
4027355998175,4cyclictest4126785-21kworker/u8:1+events_unbound00:20:180
4027355998175,4cyclictest4113999-21kworker/u8:0+events_unbound23:50:170
4027355998174,5cyclictest4060966-21kworker/u8:1+flush-179:021:10:210
4027358998074,4cyclictest4118824-21kworker/u8:3+flush-179:000:30:011
4027358998074,4cyclictest4037369-21kworker/u8:2+flush-179:020:05:191
4027358998070,8cyclictest4104469-21apt-get23:10:121
4027358998068,9cyclictest1213033-21systemd-journal22:30:011
4027355998074,4cyclictest4060966-21kworker/u8:1+flush-179:021:00:210
4027355997974,4cyclictest4068947-21kworker/u8:2+events_unbound21:35:240
4027358997869,7cyclictest1213033-21systemd-journal19:35:001
4027355997871,6cyclictest4053698-21kworker/u8:2+flush-179:020:45:200
4027355997772,4cyclictest2897312-21kworker/u8:3+flush-179:019:15:260
4027358997670,4cyclictest4113999-21kworker/u8:0+events_unbound23:55:011
4027358997666,7cyclictest4050527-21kworker/u8:0+flush-179:020:20:191
4027358997663,6cyclictest4091474-21kworker/u8:1+flush-179:022:50:161
4027355997671,4cyclictest4037369-21kworker/u8:2+flush-179:020:00:250
4027355997671,3cyclictest4084554-21kworker/u8:2+flush-179:022:15:140
4027355997668,7cyclictest4110546-21kworker/u8:2+events_unbound23:30:190
4027358997565,7cyclictest4067351-21latency_hist21:15:011
4027355997571,3cyclictest4046712-21kworker/u8:3+flush-179:020:15:150
4027355997571,3cyclictest2897312-21kworker/u8:3+flush-179:019:20:200
4027355997564,7cyclictest4028898-21latency_hist19:15:010
4027358997464,8cyclictest4086702-21latency_hist22:15:001
4027358997366,5cyclictest4028933-21kworker/u8:1+flush-179:019:50:211
4027355997368,4cyclictest4037369-21kworker/u8:2+flush-179:019:50:250
4027355997367,5cyclictest4118824-21kworker/u8:3+events_unbound00:30:200
4027358997267,3cyclictest2897312-21kworker/u8:3+flush-179:019:15:231
4027358997266,4cyclictest4065809-21kworker/u8:0+flush-179:021:50:161
4027355997263,6cyclictest4053698-21kworker/u8:2+events_unbound20:50:200
4027355997261,8cyclictest4095666-21kworker/u8:0+events_unbound23:05:010
4027355997162,7cyclictest4080878-21diskstats21:55:140
4027355997065,3cyclictest4028933-21kworker/u8:1+flush-179:019:35:210
4027358996965,3cyclictest4037369-21kworker/u8:2+events_unbound20:00:241
4027358996962,5cyclictest4118824-21kworker/u8:3+flush-179:000:10:251
4027358996863,4cyclictest2897312-21kworker/u8:3+flush-179:019:45:171
4027358996862,4cyclictest4118824-21kworker/u8:3+flush-179:000:35:181
4027358996860,5cyclictest4118824-21kworker/u8:3+flush-179:000:30:151
4027355996863,4cyclictest4065809-21kworker/u8:0+flush-179:021:50:200
4027355996858,4cyclictest4091529-21kworker/u8:2+events_unbound22:35:150
4027355996762,4cyclictest4065809-21kworker/u8:0+flush-179:021:45:190
4027358996660,5cyclictest4081902-21kworker/u8:1+events_unbound22:00:241
4027358996660,4cyclictest4108973-21kworker/u8:1+flush-179:023:25:201
402735599660,65cyclictest0-21swapper/022:55:590
402735599660,65cyclictest0-21swapper/022:55:590
4027358996560,4cyclictest4061022-21kworker/u8:3+flush-179:021:15:261
4027358996558,5cyclictest1213033-21systemd-journal23:06:241
4027355996560,4cyclictest4122032-21kworker/u8:2+flush-179:000:05:200
402736399640,62cyclictest0-21swapper/321:22:003
402736399640,62cyclictest0-21swapper/321:21:593
4027358996256,5cyclictest4081902-21kworker/u8:1+flush-179:022:09:551
4027358996151,7cyclictest4072131-21latency_hist21:30:011
4027358996149,9cyclictest4073718-21latency_hist21:35:011
4027358995953,5cyclictest4086735-21kworker/u8:3+flush-179:022:20:221
4027358995851,5cyclictest4028933-21kworker/u8:1+flush-179:020:45:241
4027355995853,4cyclictest4095666-21kworker/u8:0+flush-179:022:45:210
4027358995752,4cyclictest4050527-21kworker/u8:0+flush-179:020:25:251
4027363995552,2cyclictest0-21swapper/300:14:003
4027358995549,4cyclictest4037369-21kworker/u8:2+flush-179:020:10:181
4027363995452,1cyclictest0-21swapper/320:23:593
4027358995447,5cyclictest4060966-21kworker/u8:1+flush-179:021:05:201
4027358995446,5cyclictest1213033-21systemd-journal19:25:151
4027358995446,5cyclictest1213033-21systemd-journal19:25:141
4027358995348,4cyclictest4095666-21kworker/u8:0+flush-179:023:04:561
4027358995348,4cyclictest4053698-21kworker/u8:2+flush-179:020:44:561
4027358995347,5cyclictest4118824-21kworker/u8:3+flush-179:000:08:271
4027359995047,2cyclictest0-21swapper/200:20:592
4577091490,13ptp4l441ktimers/319:10:003
4027359994643,2cyclictest0-21swapper/220:38:002
4027358994338,4cyclictest4060966-21kworker/u8:1+events_unbound21:24:221
4027358994338,4cyclictest4060966-21kworker/u8:1+events_unbound21:24:221
402735999420,40cyclictest0-21swapper/200:35:592
4027363993937,1cyclictest0-21swapper/319:19:003
4027363993933,5cyclictest4059418-21turbostat20:50:013
402736399380,1cyclictest0-21swapper/320:27:583
402735999380,36cyclictest0-21swapper/222:15:592
402735999380,36cyclictest0-21swapper/222:12:592
402735999380,35cyclictest0-21swapper/200:04:552
4027363993735,1cyclictest0-21swapper/319:11:593
4027363993733,2cyclictest0-21swapper/321:16:593
402736399370,36cyclictest0-21swapper/321:05:593
4027359993734,2cyclictest0-21swapper/223:39:552
4027359993734,2cyclictest0-21swapper/223:15:002
4027359993734,2cyclictest0-21swapper/220:31:592
402735999370,35cyclictest0-21swapper/223:05:002
402735999370,35cyclictest0-21swapper/222:34:592
402735999370,35cyclictest0-21swapper/220:25:582
402735999370,35cyclictest0-21swapper/200:14:592
4577091360,28ptp4l441ktimers/319:20:123
4027363993634,1cyclictest0-21swapper/323:49:563
4027363993634,1cyclictest0-21swapper/320:34:563
402736399360,35cyclictest0-21swapper/323:29:003
4027359993634,1cyclictest0-21swapper/221:50:002
4027359993634,1cyclictest0-21swapper/221:40:012
4027359993634,1cyclictest0-21swapper/219:59:582
4027359993633,2cyclictest0-21swapper/223:44:552
4027359993633,2cyclictest0-21swapper/219:33:002
402735999360,2cyclictest0-21swapper/219:13:582
4027363993533,1cyclictest0-21swapper/321:04:593
402736399350,1cyclictest0-21swapper/322:09:593
4027359993532,2cyclictest0-21swapper/223:24:562
4027359993532,2cyclictest0-21swapper/223:07:592
4027359993532,2cyclictest0-21swapper/219:26:592
4027359993532,2cyclictest0-21swapper/219:26:582
402735999350,1cyclictest0-21swapper/221:15:592
402735999350,1cyclictest0-21swapper/200:15:592
4027363993432,1cyclictest0-21swapper/323:38:583
4027363993432,1cyclictest0-21swapper/323:03:593
4027363993432,1cyclictest0-21swapper/321:44:593
4027359993431,2cyclictest0-21swapper/222:54:552
4027363993331,1cyclictest0-21swapper/319:53:583
4027363993230,1cyclictest0-21swapper/322:59:003
4027363993230,1cyclictest0-21swapper/322:59:003
4027363993230,1cyclictest0-21swapper/320:15:003
4027363993230,1cyclictest0-21swapper/319:27:593
4027363993230,1cyclictest0-21swapper/319:27:593
4027359993229,2cyclictest0-21swapper/223:47:002
4027359993229,2cyclictest0-21swapper/222:00:592
4027355993226,4cyclictest4027267-21latency_hist19:10:010
4027363993129,1cyclictest0-21swapper/322:38:593
4027363993126,4cyclictest4072151-21turbostat21:30:003
4027359993129,1cyclictest0-21swapper/223:54:592
4027359993128,2cyclictest0-21swapper/221:09:542
402735999310,23cyclictest0-21swapper/223:30:002
4027363993028,1cyclictest0-21swapper/322:29:003
402736399300,29cyclictest0-21swapper/319:34:543
402736399300,29cyclictest0-21swapper/300:05:583
402736399300,28cyclictest0-21swapper/322:20:133
402736399300,1cyclictest0-21swapper/300:35:593
4027359993027,2cyclictest0-21swapper/221:55:122
4027359993027,2cyclictest0-21swapper/220:49:552
4577091290,4ptp4l61490irq/134-eno1-TxRx-023:14:563
4027363992927,1cyclictest0-21swapper/320:15:133
4027363992927,1cyclictest0-21swapper/300:15:133
4027363992926,2cyclictest0-21swapper/323:30:033
402736399290,27cyclictest0-21swapper/323:15:123
402736399290,27cyclictest0-21swapper/322:00:113
402736399290,27cyclictest0-21swapper/320:50:123
402736399290,27cyclictest0-21swapper/300:20:133
402736399290,1cyclictest0-21swapper/322:40:143
4027359992926,2cyclictest0-21swapper/223:59:592
4027359992926,2cyclictest0-21swapper/220:11:582
4027359992926,2cyclictest0-21swapper/220:05:162
4027359992926,2cyclictest0-21swapper/220:00:132
4027359992926,2cyclictest0-21swapper/219:35:122
4027359992926,2cyclictest0-21swapper/200:05:142
402735999290,28cyclictest0-21swapper/200:25:122
402735999290,27cyclictest0-21swapper/222:25:132
402735999290,27cyclictest0-21swapper/221:50:132
402735999290,27cyclictest0-21swapper/221:32:592
402735999290,27cyclictest0-21swapper/221:20:122
402735999290,27cyclictest0-21swapper/221:20:112
402735999290,27cyclictest0-21swapper/219:40:022
402735999290,27cyclictest0-21swapper/219:20:132
4027363992826,1cyclictest0-21swapper/321:30:133
4027363992826,1cyclictest0-21swapper/320:55:583
4027363992826,1cyclictest0-21swapper/300:31:003
4027363992825,2cyclictest0-21swapper/320:35:143
402736399280,27cyclictest0-21swapper/319:39:583
402736399280,26cyclictest0-21swapper/319:55:143
4027359992825,2cyclictest0-21swapper/223:30:012
4027359992825,2cyclictest0-21swapper/221:25:132
402735999280,2cyclictest0-21swapper/219:45:132
402735999280,27cyclictest0-21swapper/220:55:582
402735999280,26cyclictest0-21swapper/221:03:592
402735999280,26cyclictest0-21swapper/220:20:132
4027358992823,4cyclictest4027515-21latency_hist19:10:021
4577091270,6ptp4l441ktimers/321:54:553
4027363992725,1cyclictest0-21swapper/319:45:593
4027363992725,1cyclictest0-21swapper/319:42:593
402736399270,26cyclictest0-21swapper/321:10:123
402735999270,24cyclictest0-21swapper/223:19:552
4577091260,6ptp4l61490irq/134-eno1-TxRx-020:45:003
4577091260,4ptp4l61490irq/134-eno1-TxRx-000:05:013
4577091260,4ptp4l441ktimers/323:45:013
4577091260,4ptp4l441ktimers/322:55:013
4027359992623,2cyclictest0-21swapper/222:47:592
402735999260,24cyclictest0-21swapper/222:42:592
4577091250,5ptp4l441ktimers/323:59:553
4577091250,5ptp4l441ktimers/320:09:553
4577091250,4ptp4l441ktimers/322:50:013
4577091250,4ptp4l441ktimers/321:40:003
4577091250,4ptp4l441ktimers/300:30:003
4027363992523,1cyclictest0-21swapper/323:22:593
4027363992523,1cyclictest0-21swapper/323:08:593
402736399250,24cyclictest0-21swapper/321:57:593
402736399250,24cyclictest0-21swapper/321:48:593
4027359992523,1cyclictest0-21swapper/221:12:582
4027359992523,1cyclictest0-21swapper/220:55:002
4577091240,4ptp4l441ktimers/322:34:563
4577091240,4ptp4l441ktimers/322:14:563
4027359992422,1cyclictest351rcuc/221:40:592
4577091230,4ptp4l441ktimers/320:05:013
4027359992321,1cyclictest0-21swapper/222:39:562
4027359992321,1cyclictest0-21swapper/219:15:132
4027359992320,2cyclictest0-21swapper/200:32:592
402736399190,18cyclictest67-21kworker/3:1+events23:54:543
4027359991916,2cyclictest0-21swapper/222:20:592
4027359991815,2cyclictest0-21swapper/222:59:002
4027359991815,2cyclictest0-21swapper/222:59:002
4027359991613,2cyclictest351rcuc/222:09:552
4027359991310,2cyclictest0-21swapper/220:40:132
402735999118,2cyclictest0-21swapper/220:18:002
40273599984,3cyclictest351rcuc/219:50:082
40273599940,3cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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