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2026-04-19 - 15:54
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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 Sun Apr 19, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40115152930,2sleep30-21swapper/312:20:483
37376192520,2sleep30-21swapper/309:15:573
38557502280,2sleep13855504-21ssh10:35:521
3571263992623,1cyclictest601rcuop/307:40:001
3571262992421,2cyclictest3859865-21systemctl10:40:000
3571262992414,6cyclictest3844802-21munin-run10:30:000
3571262992412,7cyclictest0-21swapper/011:40:430
3571262992320,2cyclictest3814897-21/usr/sbin/munin10:10:020
3571262992316,6cyclictest1296-21polkitd12:05:000
3571262992314,8cyclictest0-21swapper/007:45:000
3571262992312,6cyclictest0-21swapper/011:10:020
37253142220,0sleep13725318-21head09:10:461
3571263992219,2cyclictest1296-21polkitd12:10:001
357126299220,17cyclictest3800715-21idleruntime10:00:460
3571264992119,1cyclictest0-21swapper/207:15:022
3571263992118,2cyclictest3739165-21apt-key09:20:001
357126299219,7cyclictest0-21swapper/009:20:430
3571262992118,2cyclictest4040158-21apt12:40:000
3571262992118,2cyclictest0-21swapper/009:45:580
3571262992111,5cyclictest0-21swapper/012:35:010
3571264992018,1cyclictest0-21swapper/211:40:012
3571263992017,2cyclictest1290-21dbus-daemon11:15:011
357126299209,6cyclictest0-21swapper/011:10:430
3571262992010,5cyclictest0-21swapper/010:35:000
37699512190,2sleep03769941-21ssh09:40:440
3571264991916,1cyclictest0-21swapper/209:25:012
3571264991915,1cyclictest0-21swapper/211:25:012
3571263991916,2cyclictest3754338-21latency_hist09:30:001
3571263991915,3cyclictest3851703-21mta-sts-daemon11:29:551
3571263991913,2cyclictest191rcu_preempt09:59:571
357126299199,6cyclictest0-21swapper/012:25:010
357126299199,5cyclictest0-21swapper/012:05:370
357126299199,5cyclictest0-21swapper/011:37:250
357126299198,6cyclictest0-21swapper/009:31:250
3571262991916,2cyclictest4002773-21systemd-run12:15:010
3571262991916,2cyclictest3873268-21switchtime10:45:570
3571262991916,2cyclictest0-21swapper/007:15:020
3571262991911,4cyclictest3624484-21tail07:50:450
3571262991910,5cyclictest0-21swapper/009:55:520
383433398180,3rtkit-daemon241rcuc/010:54:240
357126499181,9cyclictest0-21swapper/210:00:012
3571264991816,1cyclictest0-21swapper/210:30:012
3571264991815,1cyclictest0-21swapper/212:40:012
3571263991815,2cyclictest3987374-21/usr/sbin/munin12:05:001
3571263991815,2cyclictest3776829-21idleruntime-cro09:45:001
3571263991812,5cyclictest3958270-21cstates11:45:461
3571263991812,1cyclictest383433398rtkit-daemon12:15:161
3571263991811,3cyclictest3571260-21cyclictest12:30:481
357126299189,1cyclictest3972837-21ssh11:55:430
357126299187,6cyclictest0-21swapper/010:20:570
357126299182,11cyclictest3921838-21kthreadcore11:20:510
3571262991815,2cyclictest3816386-21irqrtprio10:10:490
3571262991812,2cyclictest17350irq/127-ahci[0000:00:17.0]08:45:000
3571262991810,7cyclictest3724014-21diskmemload09:51:090
3571262991810,4cyclictest0-21swapper/011:20:020
2649091181,4phc2sys0-21swapper/309:35:433
2649091180,2phc2sys0-21swapper/310:59:293
3571264991715,1cyclictest0-21swapper/211:10:012
3571264991714,1cyclictest0-21swapper/211:35:012
3571264991714,1cyclictest0-21swapper/211:20:002
3571264991714,1cyclictest0-21swapper/211:00:542
3571264991714,1cyclictest0-21swapper/211:00:012
3571264991714,1cyclictest0-21swapper/210:40:002
3571264991714,1cyclictest0-21swapper/209:45:482
3571264991714,1cyclictest0-21swapper/209:40:502
3571264991714,1cyclictest0-21swapper/209:15:002
3571264991714,1cyclictest0-21swapper/208:05:512
3571264991712,3cyclictest0-21swapper/209:05:002
357126399178,3cyclictest501rcuop/210:31:251
357126399177,3cyclictest501rcuop/212:13:541
357126399176,3cyclictest501rcuop/211:04:481
3571263991714,2cyclictest4040436-21apt-key12:40:011
3571263991714,2cyclictest3980040-21systemd12:00:011
3571263991714,2cyclictest3927651-21/usr/sbin/munin11:25:021
3571263991714,2cyclictest3900300-21kthreadcore11:05:511
3571263991714,2cyclictest3851703-21mta-sts-daemon09:22:151
3571263991714,2cyclictest3824567-21rs:main1
3571263991714,2cyclictest3805154-21grep10:00:531
3571263991714,2cyclictest3571260-21cyclictest09:50:511
357126299179,5cyclictest3643178-21tail08:05:460
357126299179,4cyclictest3930440-21kthreadcore11:25:510
3571262991716,1cyclictest0-21swapper/008:26:260
3571262991715,1cyclictest3834332-21rtkit-daemon12:26:150
3571262991714,2cyclictest3969457-21kthreadcore11:50:520
3571262991714,2cyclictest3851703-21mta-sts-daemon10:17:570
3571262991714,2cyclictest3605201-21idleruntime-cro07:35:000
3571262991710,6cyclictest3834332-21rtkit-daemon07:17:130
2649091171,8phc2sys0-21swapper/308:00:433
2649091170,2phc2sys0-21swapper/311:00:253
2649091170,1phc2sys0-21swapper/311:46:583
36193242160,2sleep13619330-21irqrtprio07:45:501
357126499169,5cyclictest3663149-21chrt08:20:502
3571264991614,1cyclictest0-21swapper/212:15:002
3571264991614,1cyclictest0-21swapper/212:10:022
3571264991614,1cyclictest0-21swapper/212:00:012
3571264991614,1cyclictest0-21swapper/210:05:022
3571264991614,1cyclictest0-21swapper/208:55:012
3571264991614,1cyclictest0-21swapper/207:40:022
3571264991613,1cyclictest0-21swapper/212:20:512
3571264991613,1cyclictest0-21swapper/211:45:012
3571264991613,1cyclictest0-21swapper/210:35:002
3571264991613,1cyclictest0-21swapper/210:15:552
3571264991613,1cyclictest0-21swapper/207:30:542
3571264991612,2cyclictest0-21swapper/211:29:042
357126499161,10cyclictest0-21swapper/210:10:012
357126399167,3cyclictest501rcuop/211:17:391
357126399166,3cyclictest501rcuop/210:57:061
357126399166,3cyclictest501rcuop/210:22:271
357126399162,9cyclictest3457179-21kworker/u16:0+xprtiod10:18:401
357126399161,9cyclictest1-21systemd11:40:011
3571263991613,2cyclictest3872087-21kthreadcore10:45:521
3571263991613,2cyclictest3861336-21sort10:40:491
3571263991613,2cyclictest3851704-21mta-sts-daemon11:31:341
3571263991613,2cyclictest3851702-21mta-sts-daemon09:35:451
3571263991613,2cyclictest3824500-21cron12:30:001
3571263991613,2cyclictest3777928-21sh09:45:481
3571263991613,2cyclictest3686517-21true08:40:001
3571263991613,2cyclictest1290-21dbus-daemon10:10:011
3571263991613,2cyclictest0-21swapper/111:45:001
3571263991612,3cyclictest3673983-21idleruntime-cro08:30:001
357126299166,4cyclictest0-21swapper/012:15:490
3571262991613,2cyclictest3851703-21mta-sts-daemon07:20:510
3571262991613,2cyclictest3732767-21grep09:15:470
3571262991611,4cyclictest1-21systemd08:22:250
2649091160,4phc2sys0-21swapper/312:08:183
2649091160,4phc2sys0-21swapper/310:08:183
2649091160,2phc2sys0-21swapper/309:11:023
2649091160,2phc2sys0-21swapper/307:50:503
357126499151,9cyclictest0-21swapper/209:00:012
357126499151,9cyclictest0-21swapper/208:40:012
3571264991512,1cyclictest0-21swapper/212:16:022
3571264991512,1cyclictest0-21swapper/210:52:242
3571264991512,1cyclictest0-21swapper/210:40:522
3571264991512,1cyclictest0-21swapper/210:10:522
3571264991512,1cyclictest0-21swapper/209:20:032
3571264991512,1cyclictest0-21swapper/208:15:022
3571264991511,2cyclictest0-21swapper/212:00:492
357126399155,4cyclictest501rcuop/208:46:481
3571263991513,1cyclictest3851704-21mta-sts-daemon08:00:181
3571263991513,1cyclictest3827634-1atopacctd07:55:001
3571263991512,2cyclictest3851705-21mta-sts-daemon08:20:481
3571263991512,2cyclictest3845053-21systemd-run10:30:021
3571263991512,2cyclictest3824565-21in:imuxsock07:57:251
3571263991512,2cyclictest1290-21dbus-daemon11:55:011
3571263991511,3cyclictest4013629-21kthreadcore12:20:511
3571263991511,3cyclictest3818189-21kthreadcore10:10:511
3571263991511,3cyclictest3701471-21kthreadcore08:50:501
3571263991511,3cyclictest3658622-21kthreadcore08:15:501
3571263991511,3cyclictest3648020-21head08:05:551
3571263991511,3cyclictest3603213-21kthreadcore07:30:511
3571263991511,3cyclictest3457179-21kworker/u16:0+nfsiod09:32:421
3571263991510,4cyclictest3577724-21munin-node09:09:191
357126399150,3cyclictest0-21swapper/107:20:121
357126399150,14cyclictest3880705-21ssh10:50:561
357126299159,5cyclictest3656666-21irqrtprio08:15:490
357126299159,5cyclictest0-21swapper/009:10:010
357126299158,5cyclictest0-21swapper/011:00:500
357126299157,4cyclictest0-21swapper/008:55:450
357126299154,2cyclictest3698963-21awk08:50:000
3571262991512,2cyclictest3885679-21kthreadcore10:55:490
3571262991512,2cyclictest3824565-21in:imuxsock07:29:570
3571262991512,2cyclictest3618751-21fschecks_time07:45:480
3571262991512,2cyclictest1290-21dbus-daemon08:35:010
3571262991512,2cyclictest0-21swapper/010:45:010
3571262991511,2cyclictest0-21swapper/008:15:020
2649091151,2phc2sys0-21swapper/310:01:003
2649091150,4phc2sys0-21swapper/311:30:583
2649091150,2phc2sys0-21swapper/310:44:233
2649091150,2phc2sys0-21swapper/310:17:433
2649091150,2phc2sys0-21swapper/309:33:033
383433398140,7rtkit-daemon3851703-21mta-sts-daemon08:50:050
3571264991411,2cyclictest0-21swapper/208:30:502
3571264991411,1cyclictest0-21swapper/212:35:012
3571264991411,1cyclictest0-21swapper/212:25:522
3571264991411,1cyclictest0-21swapper/211:50:012
3571264991411,1cyclictest0-21swapper/211:10:542
3571264991411,1cyclictest0-21swapper/210:25:002
3571264991411,1cyclictest0-21swapper/209:30:552
3571264991411,1cyclictest0-21swapper/209:25:502
3571264991411,1cyclictest0-21swapper/209:05:472
3571264991411,1cyclictest0-21swapper/208:40:502
3571264991411,1cyclictest0-21swapper/208:25:492
3571264991411,1cyclictest0-21swapper/207:50:462
3571264991411,1cyclictest0-21swapper/207:45:522
3571264991411,1cyclictest0-21swapper/207:25:492
3571264991410,2cyclictest0-21swapper/208:45:472
357126499140,9cyclictest0-21swapper/209:40:012
357126399149,4cyclictest3834332-21rtkit-daemon09:00:031
357126399149,4cyclictest3456756-21GUsbEventThread07:12:441
3571263991410,3cyclictest3824565-21in:imuxsock08:15:011
3571263991410,3cyclictest3594387-21kthreadcore07:25:491
357126299149,1cyclictest383433398rtkit-daemon08:37:140
357126299143,6cyclictest0-21swapper/009:13:250
357126299143,5cyclictest3941052-21awk11:30:590
3571262991412,1cyclictest3609755-21kthreadcore07:35:510
3571262991411,2cyclictest3958467-21sh11:45:470
3571262991411,2cyclictest3834328-21sendmail-mta09:03:590
3571262991411,2cyclictest3571260-21cyclictest07:55:500
2649091141,3phc2sys0-21swapper/308:35:443
2649091140,2phc2sys0-21swapper/312:29:113
2649091140,2phc2sys0-21swapper/311:58:293
2649091140,2phc2sys0-21swapper/311:38:413
2649091140,2phc2sys0-21swapper/310:35:553
2649091140,1phc2sys0-21swapper/312:34:563
2649091140,1phc2sys0-21swapper/310:22:323
2649091140,1phc2sys0-21swapper/308:19:203
357126499139,2cyclictest0-21swapper/207:55:472
3571264991311,1cyclictest0-21swapper/211:50:482
3571264991310,1cyclictest0-21swapper/207:20:472
3571263991311,1cyclictest3851704-21mta-sts-daemon07:40:441
3571263991310,2cyclictest3851704-21mta-sts-daemon08:55:491
3571263991310,2cyclictest3851704-21mta-sts-daemon07:15:501
3571263991310,2cyclictest3571431-21true07:10:011
357126299131,8cyclictest0-21swapper/008:05:010
3571262991311,1cyclictest3851703-21mta-sts-daemon09:35:250
3571262991310,2cyclictest3748510-21irqcore09:25:500
2649091134,2phc2sys0-21swapper/309:05:453
2649091130,2phc2sys0-21swapper/312:11:073
2649091130,2phc2sys0-21swapper/311:25:543
2649091130,2phc2sys0-21swapper/309:48:103
2649091130,2phc2sys0-21swapper/309:44:533
2649091130,1phc2sys0-21swapper/311:42:353
357126499121,6cyclictest0-21swapper/208:15:432
3571264991210,1cyclictest0-21swapper/210:45:502
3571264991210,1cyclictest0-21swapper/209:50:112
3571264991210,1cyclictest0-21swapper/207:40:512
3571264991210,1cyclictest0-21swapper/207:15:442
357126499120,5cyclictest0-21swapper/208:00:432
357126399129,2cyclictest3678840-21kthreadcore08:30:541
2649091127,2phc2sys0-21swapper/311:50:443
2649091120,4phc2sys0-21swapper/308:25:323
2649091120,3phc2sys0-21swapper/312:04:243
2649091120,2phc2sys0-21swapper/308:40:203
2649091120,2phc2sys0-21swapper/308:05:463
2649091120,1phc2sys0-21swapper/307:29:303
357126499111,5cyclictest0-21swapper/207:10:012
2649091111,4phc2sys0-21swapper/307:15:433
2649091111,2phc2sys0-21swapper/311:15:443
2649091111,2phc2sys0-21swapper/310:10:503
2649091110,4phc2sys0-21swapper/307:45:443
2649091110,2phc2sys0-21swapper/311:06:143
2649091110,2phc2sys0-21swapper/309:50:343
2649091110,2phc2sys0-21swapper/309:00:443
2649091102,2phc2sys0-21swapper/307:25:013
2649091101,3phc2sys0-21swapper/310:50:583
2649091101,2phc2sys0-21swapper/311:10:433
2649091101,2phc2sys0-21swapper/309:25:013
2649091100,3phc2sys0-21swapper/310:45:573
2649091100,2phc2sys0-21swapper/311:20:453
2649091100,2phc2sys0-21swapper/310:28:063
2649091100,2phc2sys0-21swapper/309:55:353
2649091100,2phc2sys0-21swapper/309:25:533
2649091100,2phc2sys0-21swapper/308:45:533
2649091100,2phc2sys0-21swapper/308:10:433
2649091100,2phc2sys0-21swapper/307:44:573
2649091100,2phc2sys0-21swapper/307:35:433
2649091100,2phc2sys0-21swapper/307:05:423
2649091100,1phc2sys0-21swapper/312:37:363
2649091100,1phc2sys0-21swapper/308:57:443
2649091100,1phc2sys0-21swapper/307:55:193
35712629992,2cyclictest3571316-21munin-run07:10:000
264909190,2phc2sys0-21swapper/312:15:483
264909190,2phc2sys0-21swapper/310:30:583
264909190,2phc2sys0-21swapper/308:50:463
264909190,2phc2sys0-21swapper/308:20:453
264909190,2phc2sys0-21swapper/307:30:313
264909190,2phc2sys0-21swapper/307:10:433
264909180,3phc2sys0-21swapper/308:30:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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