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2026-04-24 - 05:01
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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
Characteristics of the highest latencies:
System rackeslot2.osadl.org (updated Fri Apr 24, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8680521060,2sleep00-21swapper/000:31:540
8680521060,2sleep00-21swapper/000:31:540
132632930,2sleep013229-21ssh23:45:360
71502790,1sleep00-21swapper/023:40:430
3819546992717,6cyclictest44575-21kthreadcore00:05:440
3819548992617,1cyclictest0-21swapper/223:20:002
3819547992418,2cyclictest134050irq/121-eno122:30:001
3819547992417,2cyclictest0-21swapper/122:35:011
3819547992416,3cyclictest0-21swapper/123:15:001
39813232220,2sleep0241rcuc/021:15:410
38872220,1sleep1341rcuc/123:36:241
3819548992212,7cyclictest0-21swapper/223:00:012
3819546992219,2cyclictest1326-21systemd-logind00:25:020
3819546992212,5cyclictest4139073-21/usr/sbin/munin23:00:420
383433398210,6rtkit-daemon3825814-21munin-node22:35:130
3819548992118,1cyclictest0-21swapper/219:15:002
3819546992111,5cyclictest0-21swapper/023:15:500
3819548992018,1cyclictest0-21swapper/222:45:012
3819548992017,1cyclictest0-21swapper/220:40:012
3819548992017,1cyclictest0-21swapper/219:55:002
3819548992017,1cyclictest0-21swapper/219:20:002
3819547992017,2cyclictest3953982-21cron20:55:001
3819547992017,2cyclictest1290-21dbus-daemon22:15:031
3819547992013,2cyclictest0-21swapper/121:15:001
3819547992012,3cyclictest0-21swapper/123:05:011
3819546992017,2cyclictest4068732-21head22:10:490
3819546992017,2cyclictest3954091-21systemd20:55:000
3819546992017,2cyclictest0-21swapper/022:05:010
3819546992013,6cyclictest4179434-21kthreadcore23:25:460
3819546992010,6cyclictest3851705-21mta-sts-daemon22:22:110
38937662190,2sleep03893770-21kthreadcore20:05:440
3819548991917,1cyclictest0-21swapper/200:40:012
3819548991916,1cyclictest0-21swapper/222:30:002
3819548991916,1cyclictest0-21swapper/221:35:012
3819547991916,2cyclictest95551-21cron00:40:001
3819547991916,2cyclictest3947720-21cron20:50:001
3819547991916,2cyclictest0-21swapper/100:35:021
3819547991916,2cyclictest0-21swapper/100:35:021
3819547991916,2cyclictest0-21swapper/100:05:001
3819547991915,2cyclictest3972929-21sh21:10:011
3819547991912,3cyclictest1290-21dbus-daemon23:50:011
3819547991910,4cyclictest0-21swapper/121:35:471
381954699199,5cyclictest0-21swapper/023:10:500
3819546991916,2cyclictest3935203-21cron20:40:000
3819546991916,2cyclictest3834751-21grep19:20:010
3819546991910,5cyclictest3994566-21ssh21:23:010
2649091190,2phc2sys0-21swapper/323:17:023
2649091190,2phc2sys0-21swapper/322:58:233
39545702180,1sleep10-21swapper/120:55:381
3819548991815,1cyclictest0-21swapper/223:30:522
3819548991815,1cyclictest0-21swapper/223:15:012
3819548991815,1cyclictest0-21swapper/221:05:402
3819548991813,2cyclictest0-21swapper/221:42:222
381954899181,11cyclictest0-21swapper/221:30:012
381954799189,4cyclictest3851698-21mta-sts-daemon23:26:231
381954799189,4cyclictest0-21swapper/122:35:391
3819547991815,2cyclictest4025314-21systemd-run21:45:001
3819547991815,2cyclictest3825835-21irqcore19:15:001
3819547991815,2cyclictest0-21swapper/119:35:001
381954699189,7cyclictest0-21swapper/021:55:010
381954699188,6cyclictest0-21swapper/022:45:460
3819546991815,2cyclictest3941491-21idleruntime-cro20:45:000
3819546991814,3cyclictest4040684-21kworker/u16:1+nfsiod22:09:210
3819546991813,1cyclictest51681-21sed00:10:430
3819546991811,6cyclictest4027869-21kthreadcore21:45:440
3819546991810,3cyclictest4100997-21idleruntime-cro22:35:000
2649091180,2phc2sys0-21swapper/323:06:573
2649091180,2phc2sys0-21swapper/321:15:343
3819548991715,1cyclictest0-21swapper/222:50:012
3819548991714,1cyclictest0-21swapper/222:25:002
3819548991714,1cyclictest0-21swapper/222:00:002
3819548991714,1cyclictest0-21swapper/221:45:522
3819548991713,2cyclictest0-21swapper/221:35:462
3819548991713,2cyclictest0-21swapper/200:26:362
381954899171,11cyclictest0-21swapper/219:30:012
3819547991714,2cyclictest3866246-21wc19:45:001
3819547991714,2cyclictest3824565-21in:imuxsock19:30:001
3819547991714,2cyclictest35216-21sendmail00:00:001
3819547991714,2cyclictest1326-21systemd-logind20:30:011
3819547991714,2cyclictest12839-21sh23:45:021
3819547991714,2cyclictest0-21swapper/100:25:011
3819547991713,2cyclictest0-21swapper/121:30:011
3819547991712,4cyclictest3851704-21mta-sts-daemon23:05:481
3819547991710,5cyclictest1-21systemd22:10:021
3819547991710,2cyclictest0-21swapper/121:21:501
381954699179,4cyclictest3879479-21tail19:55:390
381954699179,4cyclictest23534-21kthreadcore23:50:460
381954699178,5cyclictest4072134-21irqcore22:15:450
3819546991714,2cyclictest4116108-21systemd-run22:45:000
3819546991714,2cyclictest4025681-21systemd-run21:45:010
3819546991714,2cyclictest3880722-21gmain00:40:020
3819546991714,2cyclictest3878974-21sh19:55:000
3819546991714,2cyclictest3853444-21apt-config19:35:000
3819546991714,2cyclictest3821127-21kthreadcore19:10:440
3819546991714,2cyclictest3819665-21systemd-run19:10:010
3819546991714,2cyclictest0-21swapper/021:40:000
2649091170,3phc2sys0-21swapper/321:22:323
2649091170,2phc2sys0-21swapper/323:43:003
2649091170,2phc2sys0-21swapper/321:50:133
2649091170,1phc2sys0-21swapper/322:37:393
3819548991614,1cyclictest0-21swapper/221:15:022
3819548991613,1cyclictest0-21swapper/223:43:152
3819548991613,1cyclictest0-21swapper/223:35:462
3819548991613,1cyclictest0-21swapper/222:35:522
3819548991613,1cyclictest0-21swapper/222:30:412
3819548991613,1cyclictest0-21swapper/222:15:412
3819548991613,1cyclictest0-21swapper/221:20:452
3819548991613,1cyclictest0-21swapper/219:40:412
3819548991613,1cyclictest0-21swapper/200:35:012
3819548991613,1cyclictest0-21swapper/200:35:012
3819548991613,1cyclictest0-21swapper/200:20:462
3819548991613,1cyclictest0-21swapper/200:15:382
3819548991613,1cyclictest0-21swapper/200:05:392
381954799168,3cyclictest0-21swapper/121:31:511
381954799165,4cyclictest4190795-21sshd23:32:511
3819547991614,1cyclictest1996-21runrttasks22:17:331
3819547991613,2cyclictest43207-21sh00:05:301
3819547991613,2cyclictest4170058-21if_enp1s023:20:411
3819547991613,2cyclictest4135192-21kthreadcore22:55:471
3819547991613,2cyclictest4117428-21if_enp1s0.822:45:431
3819547991613,2cyclictest4049034-21cstates22:00:391
3819547991613,2cyclictest4040556-21latency_hist21:55:001
3819547991613,2cyclictest3928977-21dump-pmu-power20:35:001
3819547991613,2cyclictest3867548-21sort19:45:421
3819547991613,2cyclictest3819544-21cyclictest19:55:011
3819547991612,3cyclictest3891804-21kworker/u16:1+nfsiod21:18:171
3819547991612,3cyclictest25227-21kthreadcore23:50:461
3819547991612,3cyclictest0-21swapper/121:45:521
381954699167,5cyclictest0-21swapper/000:15:440
381954699167,4cyclictest3997057-21kthreadcore21:25:450
381954699165,6cyclictest0-21swapper/023:55:500
3819546991613,2cyclictest4137008-21timerandwakeup22:55:530
3819546991613,2cyclictest3974012-21sed21:10:420
3819546991613,2cyclictest3972716-21diskmemload22:27:440
3819546991613,2cyclictest3966530-21systemd21:05:000
3819546991613,2cyclictest3840843-21apt19:25:000
3819546991613,2cyclictest3819544-21cyclictest00:05:000
3819546991613,2cyclictest1326-21systemd-logind20:50:010
3819546991613,2cyclictest0-21swapper/021:35:010
3819546991612,3cyclictest3903977-21latency_hist20:15:010
3819546991610,5cyclictest3851703-21mta-sts-daemon21:58:220
2649091161,4phc2sys0-21swapper/323:30:373
2649091160,2phc2sys0-21swapper/321:25:113
381954899158,4cyclictest52086-21chrt00:10:442
381954899151,8cyclictest0-21swapper/223:10:012
3819548991513,1cyclictest0-21swapper/222:05:022
3819548991513,1cyclictest0-21swapper/221:55:022
3819548991512,1cyclictest0-21swapper/220:45:002
3819548991512,1cyclictest0-21swapper/220:30:422
3819548991512,1cyclictest0-21swapper/220:25:402
3819548991512,1cyclictest0-21swapper/220:20:412
3819548991512,1cyclictest0-21swapper/220:00:422
381954899151,1cyclictest0-21swapper/222:10:382
3819548991511,2cyclictest0-21swapper/223:55:442
381954799159,5cyclictest3851702-21mta-sts-daemon00:14:241
381954799152,4cyclictest3851702-21mta-sts-daemon20:04:421
3819547991512,2cyclictest4085909-21apt-key22:25:001
3819547991512,2cyclictest3897964-21latency_hist20:10:021
3819547991511,3cyclictest3851705-21mta-sts-daemon21:55:331
3819547991511,3cyclictest3835028-21aten_repower_en19:20:361
3819547991511,3cyclictest3819544-21cyclictest20:20:451
3819547991510,4cyclictest3825814-21munin-node20:44:481
381954699155,8cyclictest3958251-21tr20:55:450
381954699152,8cyclictest3910765-21aten2.4-expect20:20:390
3819546991512,2cyclictest4191719-21systemd-run23:35:020
3819546991512,2cyclictest4129552-21unixbench-2d22:50:490
3819546991512,2cyclictest3824565-21in:imuxsock23:35:510
3819546991512,2cyclictest0-21swapper/019:50:010
3819546991510,4cyclictest3841051-21wpa_supplicant19:39:590
3819546991510,1cyclictest491rcuog/223:23:040
381954699150,11cyclictest3917163-21expr20:25:400
2649091150,3phc2sys0-21swapper/321:30:323
2649091150,3phc2sys0-21swapper/320:25:373
2649091150,2phc2sys0-21swapper/323:12:463
2649091150,2phc2sys0-21swapper/322:19:303
2649091150,2phc2sys0-21swapper/322:00:223
2649091150,2phc2sys0-21swapper/300:15:433
2649091150,2phc2sys0-21swapper/300:14:263
3819548991412,1cyclictest0-21swapper/222:05:492
3819548991412,1cyclictest0-21swapper/219:35:022
3819548991411,1cyclictest0-21swapper/223:45:432
3819548991411,1cyclictest0-21swapper/223:25:522
3819548991411,1cyclictest0-21swapper/223:21:492
3819548991411,1cyclictest0-21swapper/220:45:412
3819548991411,1cyclictest0-21swapper/220:10:022
3819548991411,1cyclictest0-21swapper/219:45:422
3819548991410,2cyclictest0-21swapper/220:15:432
381954899140,12cyclictest0-21swapper/219:21:122
381954799147,3cyclictest3828491-21aten_repower_fr19:15:381
381954799147,3cyclictest3827634-1atopacctd22:40:391
381954799145,4cyclictest0-21swapper/120:39:511
381954799144,2cyclictest134050irq/121-eno120:15:511
381954799141,5cyclictest491rcuog/200:18:391
3819547991411,2cyclictest73695-21cstates00:25:391
3819547991411,2cyclictest4166831-21processes23:15:481
3819547991411,2cyclictest3880653-21kthreadcore19:55:451
3819547991410,3cyclictest4127049-21kthreadcore22:50:431
3819547991410,3cyclictest3961582-21irqcore21:00:441
381954799140,3cyclictest0-21swapper/119:38:311
381954699145,5cyclictest0-21swapper/019:42:560
381954699144,8cyclictest3966970-21aten_repower_po21:05:390
3819546991412,1cyclictest3851705-21mta-sts-daemon00:25:510
3819546991411,2cyclictest3827634-1atopacctd19:25:450
2649091140,3phc2sys0-21swapper/321:35:383
2649091140,2phc2sys0-21swapper/323:47:543
2649091140,2phc2sys0-21swapper/319:15:523
381954899139,2cyclictest0-21swapper/219:55:372
381954899131,8cyclictest0-21swapper/219:10:012
381954899131,1cyclictest0-21swapper/223:00:362
3819548991311,1cyclictest0-21swapper/222:50:392
3819548991311,1cyclictest0-21swapper/221:15:462
3819548991310,2cyclictest0-21swapper/220:10:502
3819548991310,1cyclictest0-21swapper/221:00:482
3819548991310,1cyclictest0-21swapper/220:50:432
3819548991310,1cyclictest0-21swapper/200:00:462
381954899130,1cyclictest0-21swapper/223:53:482
381954799137,2cyclictest134050irq/121-eno119:10:001
3819547991310,2cyclictest3902307-21kthreadcore20:10:461
381954699135,3cyclictest3928602-21users20:30:510
3819546991310,2cyclictest4149311-21kthreadcore23:05:460
3819546991310,2cyclictest3905227-21irqcore20:15:430
3819546991310,2cyclictest3819544-21cyclictest20:00:430
2649091130,5phc2sys0-21swapper/319:05:363
2649091130,2phc2sys0-21swapper/323:29:253
2649091130,2phc2sys0-21swapper/322:07:253
2649091130,2phc2sys0-21swapper/320:10:023
2649091130,2phc2sys0-21swapper/300:27:103
2649091130,1phc2sys0-21swapper/323:21:133
2649091130,1phc2sys0-21swapper/322:43:003
2649091130,1phc2sys0-21swapper/321:07:003
3819548991210,1cyclictest0-21swapper/220:55:452
3819548991210,1cyclictest0-21swapper/219:35:442
2649091125,2phc2sys0-21swapper/323:39:073
2649091123,2phc2sys0-21swapper/323:54:553
2649091122,2phc2sys0-21swapper/322:31:093
2649091121,1phc2sys0-21swapper/319:23:403
2649091120,5phc2sys0-21swapper/321:55:593
2649091120,3phc2sys0-21swapper/319:59:513
2649091120,3phc2sys0-21swapper/300:30:383
2649091120,3phc2sys0-21swapper/300:30:383
2649091120,2phc2sys0-21swapper/323:58:083
2649091120,2phc2sys0-21swapper/323:03:033
2649091120,2phc2sys0-21swapper/322:10:053
2649091113,2phc2sys0-21swapper/321:47:173
2649091111,5phc2sys0-21swapper/320:15:373
2649091111,3phc2sys0-21swapper/300:08:023
2649091111,2phc2sys0-21swapper/320:50:363
2649091110,1phc2sys0-21swapper/320:06:483
2649091110,1phc2sys0-21swapper/320:02:163
39735382100,2sleep30-21swapper/321:10:393
2649091103,3phc2sys0-21swapper/319:40:393
2649091101,4phc2sys0-21swapper/319:10:373
2649091100,2phc2sys0-21swapper/322:54:193
2649091100,2phc2sys0-21swapper/322:20:473
2649091100,2phc2sys0-21swapper/320:45:193
2649091100,2phc2sys0-21swapper/320:35:463
2649091100,2phc2sys0-21swapper/319:50:373
2649091100,2phc2sys0-21swapper/319:50:013
2649091100,2phc2sys0-21swapper/319:35:513
2649091100,2phc2sys0-21swapper/319:33:573
2649091100,2phc2sys0-21swapper/300:35:273
2649091100,2phc2sys0-21swapper/300:04:553
2649091100,1phc2sys0-21swapper/322:25:203
264909191,2phc2sys0-21swapper/321:40:193
264909191,2phc2sys0-21swapper/321:00:473
264909191,2phc2sys0-21swapper/319:25:413
264909191,2phc2sys0-21swapper/300:23:373
264909190,2phc2sys0-21swapper/322:45:523
264909190,2phc2sys0-21swapper/320:55:013
264909190,2phc2sys0-21swapper/320:42:513
264909190,2phc2sys0-21swapper/320:30:373
264909190,2phc2sys0-21swapper/320:20:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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