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2026-04-21 - 17:22
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Tue Apr 21, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34314452310,1sleep10-21swapper/109:45:421
32604022310,2sleep30-21swapper/307:35:463
3224819992522,2cyclictest3626212-21grep11:55:001
3224819992421,2cyclictest1-21systemd10:10:521
3224818992421,2cyclictest3352797-21gpgv08:50:010
3224818992421,2cyclictest1290-21dbus-daemon12:00:010
383433398230,6rtkit-daemon3851705-21mta-sts-daemon11:46:590
322481899232,10cyclictest0-21swapper/009:05:410
3224818992315,5cyclictest3224815-21cyclictest12:38:260
3224819992216,2cyclictest134050irq/121-eno110:45:021
3224819992216,2cyclictest134050irq/121-eno110:40:021
3224818992211,6cyclictest0-21swapper/011:20:000
3224818992118,2cyclictest3483297-21dump-pmu-power10:20:000
3224818992118,2cyclictest1-21systemd07:30:010
3224819992018,1cyclictest0-21swapper/108:50:011
3224819992017,2cyclictest3258932-21gpgconf07:35:001
3224819992017,2cyclictest0-21swapper/108:30:011
3224819992012,3cyclictest0-21swapper/110:25:001
3224819992011,3cyclictest0-21swapper/111:10:011
322481899209,7cyclictest3290300-21munin-plugin-st08:00:000
3224818992018,1cyclictest3663757-21sendmail12:20:010
3224818992016,3cyclictest1-21systemd10:31:440
3224818992014,5cyclictest3401093-21systemd-run09:25:020
3224818992011,4cyclictest3851705-21mta-sts-daemon11:26:170
3224818992010,6cyclictest3683012-21kthreadcore12:30:490
3224820991916,1cyclictest0-21swapper/209:20:022
3224819991916,2cyclictest3679446-21apt-key12:30:001
3224819991916,2cyclictest3438692-21kworker/u16:3-events_power_efficient10:35:001
3224819991915,3cyclictest3851875-21systemd-journal07:15:001
3224819991915,3cyclictest36-21ksoftirqd/109:00:021
322481899199,6cyclictest3851703-21mta-sts-daemon11:53:520
322481899199,5cyclictest0-21swapper/009:45:550
322481899198,6cyclictest0-21swapper/010:40:020
3224818991916,2cyclictest3827634-1atopacctd08:25:010
3224818991916,2cyclictest3468290-21grep10:10:000
3224818991916,2cyclictest3327730-21grep08:30:000
3224818991915,2cyclictest3408550-21sh09:30:010
3224818991913,5cyclictest0-21swapper/009:20:010
322481899191,12cyclictest0-21swapper/008:40:490
2649091191,6phc2sys0-21swapper/307:45:413
3224820991816,1cyclictest0-21swapper/210:20:012
3224820991815,1cyclictest0-21swapper/210:55:012
322482099180,9cyclictest0-21swapper/209:10:012
3224819991816,1cyclictest3401041-21sh09:25:021
3224819991815,2cyclictest3603619-21latency_hist11:40:021
3224819991815,2cyclictest3379843-21sed09:10:471
3224819991815,2cyclictest3224824-21sh07:10:011
322481899188,5cyclictest0-21swapper/010:55:500
3224818991815,2cyclictest3671585-21sh12:25:000
3224818991815,2cyclictest3656293-21latency_hist12:15:010
2649091180,2phc2sys0-21swapper/311:41:143
3224820991715,1cyclictest0-21swapper/209:05:022
3224820991714,1cyclictest0-21swapper/212:00:002
3224820991714,1cyclictest0-21swapper/211:40:542
3224820991714,1cyclictest0-21swapper/210:45:542
3224820991714,1cyclictest0-21swapper/210:32:092
3224820991714,1cyclictest0-21swapper/208:25:002
3224820991713,2cyclictest0-21swapper/211:25:552
3224820991713,2cyclictest0-21swapper/209:15:002
3224820991713,1cyclictest0-21swapper/211:25:002
3224819991714,2cyclictest3661241-21kthreadcore12:15:491
3224819991714,2cyclictest3466865-21grep10:05:541
3224819991714,2cyclictest3265528-21cut07:40:011
3224819991712,4cyclictest1290-21dbus-daemon08:25:001
3224819991711,5cyclictest3417345-21irqcore09:35:471
3224819991710,2cyclictest3483519-21kworker/u16:0-rpciod10:51:211
3224819991710,1cyclictest134050irq/121-eno111:25:421
322481999170,15cyclictest3430804-21munin-run09:45:001
322481899179,7cyclictest0-21swapper/011:43:430
322481899179,4cyclictest3529742-21ssh10:50:470
322481899178,8cyclictest0-21swapper/012:25:420
322481899178,5cyclictest0-21swapper/010:25:010
322481899178,2cyclictest0-21swapper/010:25:410
322481899175,5cyclictest3382319-21kthreadcore09:10:490
3224818991714,2cyclictest3851704-21mta-sts-daemon07:40:000
3224818991714,2cyclictest3851703-21mta-sts-daemon10:45:540
3224818991714,2cyclictest3646835-21grep12:05:510
3224818991714,2cyclictest3302846-21systemd-run08:10:000
3224818991713,3cyclictest3574918-21cut11:20:450
2649091170,6phc2sys0-21swapper/307:05:413
2649091170,2phc2sys0-21swapper/311:53:523
2649091170,2phc2sys0-21swapper/310:22:003
2649091170,2phc2sys0-21swapper/309:32:193
2649091170,2phc2sys0-21swapper/309:10:053
2649091170,1phc2sys0-21swapper/308:00:563
383433398160,7rtkit-daemon3851705-21mta-sts-daemon09:04:070
322482099161,7cyclictest0-21swapper/212:10:012
3224820991614,1cyclictest0-21swapper/212:20:482
3224820991614,1cyclictest0-21swapper/210:20:492
3224820991614,1cyclictest0-21swapper/209:50:452
3224820991614,1cyclictest0-21swapper/209:00:012
3224820991613,1cyclictest0-21swapper/211:10:452
3224820991613,1cyclictest0-21swapper/211:00:002
3224820991613,1cyclictest0-21swapper/210:40:012
3224820991613,1cyclictest0-21swapper/210:10:482
3224820991613,1cyclictest0-21swapper/209:55:432
3224820991613,1cyclictest0-21swapper/209:50:002
3224820991613,1cyclictest0-21swapper/209:40:522
3224820991613,1cyclictest0-21swapper/208:40:002
3224820991613,1cyclictest0-21swapper/207:45:002
3224820991613,1cyclictest0-21swapper/207:35:002
3224820991611,3cyclictest0-21swapper/209:20:402
3224820991611,1cyclictest0-21swapper/208:55:002
322481999169,3cyclictest3444028-21mailstats09:50:531
322481999167,3cyclictest501rcuop/209:19:501
322481999167,2cyclictest3438368-21kworker/1:1+events_freezable11:21:361
3224819991613,2cyclictest3851704-21mta-sts-daemon10:48:161
3224819991613,2cyclictest3851704-21mta-sts-daemon10:26:211
3224819991613,2cyclictest3680210-21tr12:30:441
3224819991613,2cyclictest3627463-21gltestperf11:55:511
3224819991613,2cyclictest3545017-21if_enp1s0.811:00:461
3224819991613,2cyclictest3545017-21if_enp1s0.811:00:461
3224819991613,2cyclictest3537055-21grep10:55:461
3224819991613,2cyclictest3406614-21grep09:25:521
3224819991612,3cyclictest3450633-21kthreadcore09:55:501
3224819991612,3cyclictest3297203-21cpuspeed_turbos08:05:421
3224819991611,1cyclictest134050irq/121-eno112:00:411
3224819991610,5cyclictest3239161-21sort07:15:551
3224819991610,2cyclictest3603677-21kworker/1:2+events_freezable12:05:481
322481899168,2cyclictest0-21swapper/011:09:470
322481899167,5cyclictest0-21swapper/011:30:480
322481899164,7cyclictest0-21swapper/007:20:000
3224818991613,2cyclictest3851705-21mta-sts-daemon09:34:490
3224818991613,2cyclictest3851702-21mta-sts-daemon10:02:040
3224818991613,2cyclictest3291346-21gltestperf08:00:450
3224818991613,2cyclictest3231014-21latency_hist07:15:010
3224818991613,2cyclictest1-21systemd11:05:020
3224818991613,2cyclictest1-21systemd11:05:010
3224818991611,1cyclictest383433398rtkit-daemon08:12:360
2649091160,4phc2sys0-21swapper/310:35:433
2649091160,1phc2sys0-21swapper/312:07:113
322482099151,8cyclictest0-21swapper/211:05:412
322482099151,7cyclictest0-21swapper/211:50:422
3224820991513,1cyclictest0-21swapper/212:40:002
3224820991513,1cyclictest0-21swapper/210:30:022
3224820991513,1cyclictest0-21swapper/210:02:462
3224820991512,2cyclictest0-21swapper/211:45:432
3224820991512,1cyclictest0-21swapper/212:31:092
3224820991512,1cyclictest0-21swapper/212:27:372
3224820991512,1cyclictest0-21swapper/211:30:502
3224820991512,1cyclictest0-21swapper/209:30:002
322481999156,3cyclictest501rcuop/211:13:461
322481999155,4cyclictest0-21swapper/107:40:551
322481999154,3cyclictest491rcuog/208:35:441
322481999152,5cyclictest501rcuop/211:17:261
3224819991512,2cyclictest3827634-1atopacctd12:10:481
3224819991512,2cyclictest3827634-1atopacctd11:40:471
3224819991512,2cyclictest3611848-21aten_repower_vo11:45:421
3224819991512,2cyclictest3454502-21gltestperf10:00:441
3224819991512,2cyclictest3378565-21grep09:10:021
3224819991512,2cyclictest3224815-21cyclictest12:38:381
3224819991511,3cyclictest3827634-1atopacctd07:20:481
3224819991511,3cyclictest3330609-21kthreadcore08:30:491
3224819991511,3cyclictest3275114-21kthreadcore07:45:491
3224819991510,4cyclictest3834789-21rpcbind08:20:001
322481899157,2cyclictest0-21swapper/009:55:500
322481899156,4cyclictest3268293-21kthreadcore07:40:500
322481899155,2cyclictest0-21swapper/011:35:490
322481899153,6cyclictest0-21swapper/012:00:390
322481899151,8cyclictest0-21swapper/010:10:400
3224818991512,2cyclictest3851704-21mta-sts-daemon08:32:090
3224818991512,2cyclictest3258998-21apt-key07:35:000
3224818991511,3cyclictest3834332-21rtkit-daemon08:55:510
3224818991511,3cyclictest3280656-21kthreadcore07:50:490
3224818991510,4cyclictest3231124-21munin-node07:49:090
322481899150,11cyclictest3422723-21ssh09:38:230
2649091152,3phc2sys0-21swapper/311:05:413
2649091150,2phc2sys0-21swapper/311:03:163
2649091150,2phc2sys0-21swapper/311:03:163
2649091150,2phc2sys0-21swapper/307:55:473
2649091150,2phc2sys0-21swapper/307:45:013
2649091150,1phc2sys0-21swapper/310:08:063
3224820991412,1cyclictest0-21swapper/212:10:112
3224820991412,1cyclictest0-21swapper/212:05:002
3224820991412,1cyclictest0-21swapper/211:35:442
3224820991412,1cyclictest0-21swapper/208:15:022
3224820991412,1cyclictest0-21swapper/207:50:472
3224820991411,1cyclictest0-21swapper/212:20:032
3224820991411,1cyclictest0-21swapper/210:45:012
3224820991411,1cyclictest0-21swapper/209:30:522
3224820991411,1cyclictest0-21swapper/208:30:462
3224820991411,1cyclictest0-21swapper/208:00:532
3224820991411,1cyclictest0-21swapper/207:55:472
3224820991411,1cyclictest0-21swapper/207:16:282
3224820991411,1cyclictest0-21swapper/207:11:122
322482099140,10cyclictest0-21swapper/208:30:012
322481999146,1cyclictest491rcuog/208:10:411
322481999145,4cyclictest3284637-21cpuspeed_turbos07:55:431
322481999145,4cyclictest0-21swapper/110:15:451
3224819991411,2cyclictest3851705-21mta-sts-daemon12:20:091
3224819991411,2cyclictest3851703-21mta-sts-daemon09:32:431
3224819991410,3cyclictest3591151-21kthreadcore11:30:471
3224819991410,3cyclictest3355803-21kthreadcore08:50:471
3224819991410,3cyclictest3279132-21irqcore07:50:471
322481899149,4cyclictest0-21swapper/011:10:440
322481899147,6cyclictest0-21swapper/009:40:470
322481899146,3cyclictest0-21swapper/008:15:440
3224818991411,2cyclictest3851702-21mta-sts-daemon10:41:590
3224818991411,2cyclictest3851702-21mta-sts-daemon09:53:090
3224818991411,2cyclictest3834332-21rtkit-daemon08:35:460
2649091141,6phc2sys0-21swapper/310:30:413
2649091140,3phc2sys0-21swapper/309:05:413
2649091140,2phc2sys0-21swapper/311:37:053
2649091140,2phc2sys0-21swapper/311:31:083
2649091140,2phc2sys0-21swapper/309:50:183
2649091140,1phc2sys0-21swapper/311:19:573
322482099137,1cyclictest0-21swapper/208:50:012
3224820991311,1cyclictest0-21swapper/208:10:012
3224820991310,2cyclictest0-21swapper/211:01:342
3224820991310,2cyclictest0-21swapper/211:01:342
3224820991310,1cyclictest0-21swapper/209:35:482
3224820991310,1cyclictest0-21swapper/208:45:022
3224820991310,1cyclictest0-21swapper/207:25:422
322481999139,3cyclictest3291714-21irqcore08:00:471
3224819991310,2cyclictest3851703-21mta-sts-daemon09:00:421
3224819991310,2cyclictest3246416-21aten_repower_vo07:25:421
3224819991310,2cyclictest1-21systemd08:40:431
322481899135,7cyclictest3243383-21tr07:20:480
3224818991310,2cyclictest3356205-21kthreadcore08:50:480
2649091131,3phc2sys0-21swapper/310:00:403
2649091130,3phc2sys0-21swapper/312:02:103
2649091130,2phc2sys0-21swapper/311:22:183
2649091130,2phc2sys0-21swapper/309:47:463
2649091130,1phc2sys0-21swapper/308:42:173
322482099129,1cyclictest0-21swapper/210:05:422
322482099129,1cyclictest0-21swapper/207:35:472
3224820991210,1cyclictest0-21swapper/211:15:052
3224820991210,1cyclictest0-21swapper/208:15:532
2649091124,2phc2sys0-21swapper/312:20:503
2649091120,2phc2sys0-21swapper/310:52:513
2649091120,2phc2sys0-21swapper/310:19:003
2649091120,2phc2sys0-21swapper/310:14:513
2649091120,2phc2sys0-21swapper/309:55:153
2649091120,2phc2sys0-21swapper/309:22:133
2649091120,2phc2sys0-21swapper/308:38:323
2649091120,1phc2sys0-21swapper/307:13:043
322482099118,1cyclictest0-21swapper/207:45:482
322482099110,9cyclictest0-21swapper/207:20:412
322481899110,6cyclictest3224989-21munin-run07:10:020
2649091114,3phc2sys0-21swapper/310:46:493
2649091111,2phc2sys0-21swapper/309:42:493
2649091110,2phc2sys0-21swapper/312:25:423
2649091110,2phc2sys0-21swapper/311:29:433
2649091110,1phc2sys0-21swapper/308:19:483
2649091110,1phc2sys0-21swapper/308:08:583
36334642100,1sleep30-21swapper/311:59:203
2649091102,2phc2sys0-21swapper/309:35:473
2649091101,3phc2sys0-21swapper/309:27:183
2649091101,2phc2sys0-21swapper/311:10:423
2649091101,2phc2sys0-21swapper/308:20:483
2649091100,3phc2sys0-21swapper/308:10:403
2649091100,2phc2sys0-21swapper/312:12:083
2649091100,2phc2sys0-21swapper/311:45:223
2649091100,2phc2sys0-21swapper/310:55:513
2649091100,2phc2sys0-21swapper/310:45:013
2649091100,2phc2sys0-21swapper/310:25:053
2649091100,2phc2sys0-21swapper/309:18:003
2649091100,2phc2sys0-21swapper/307:20:013
264909191,2phc2sys0-21swapper/308:50:433
264909191,2phc2sys0-21swapper/308:45:503
264909190,2phc2sys0-21swapper/312:35:493
264909190,2phc2sys0-21swapper/312:30:393
264909190,2phc2sys0-21swapper/312:17:253
264909190,2phc2sys0-21swapper/308:55:553
264909190,2phc2sys0-21swapper/308:30:473
264909190,2phc2sys0-21swapper/308:25:423
264909190,2phc2sys0-21swapper/307:30:553
264909190,2phc2sys0-21swapper/307:25:503
264909190,2phc2sys0-21swapper/307:20:453
264909190,1phc2sys0-21swapper/309:02:053
264909180,2phc2sys0-21swapper/307:50:553
3218838270,4sleep20-21swapper/207:05:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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