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2026-08-22 - 00:26
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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 all highest latencies:
System rackeslot2.osadl.org (updated Fri Aug 21, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72778621120,2sleep30-21swapper/309:00:113
88456421030,2sleep1341rcuc/110:50:031
9487302720,1sleep1948729-21ssh11:31:591
9438402330,2sleep1943812-21munin-run11:30:031
8633962310,2sleep20-21swapper/210:35:052
591604992918,7cyclictest714-21gdbus09:35:090
591606992623,1cyclictest0-21swapper/211:30:022
591605992421,2cyclictest780062-21cstates09:40:021
591604992418,5cyclictest935551-21idleruntime-cro11:25:010
591604992416,4cyclictest883997-21latency_hist10:50:010
591604992316,6cyclictest972279-21cstates11:50:010
591606992219,1cyclictest0-21swapper/210:49:582
591606992219,1cyclictest0-21swapper/209:15:012
591605992219,2cyclictest979898-21/usr/sbin/munin11:55:021
591605992219,2cyclictest824558-21latency_hist10:10:011
591605992219,2cyclictest772855-21latency_hist09:35:011
591605992219,2cyclictest662345-21hddtemp_smartct08:10:021
591604992212,5cyclictest0-21swapper/010:55:030
591606992119,1cyclictest0-21swapper/210:20:042
591606992119,1cyclictest0-21swapper/210:05:022
591606992118,1cyclictest0-21swapper/211:20:022
591606992118,1cyclictest0-21swapper/207:35:022
591605992118,2cyclictest723103-21sed09:00:021
591605992118,2cyclictest723103-21sed09:00:021
591605992118,2cyclictest664-21dbus-daemon07:20:021
591605992118,2cyclictest607512-21if_enp1s007:25:011
591605992113,3cyclictest0-21swapper/111:40:031
591604992118,2cyclictest987709-21grep12:00:030
591604992118,2cyclictest625529-21sendmail07:40:000
591604992117,3cyclictest0-21swapper/009:35:000
591606992018,1cyclictest0-21swapper/208:25:022
591606992018,1cyclictest0-21swapper/208:00:012
591606992017,1cyclictest0-21swapper/212:00:012
591606992017,1cyclictest0-21swapper/211:32:512
591606992017,1cyclictest0-21swapper/208:05:012
591606992017,1cyclictest0-21swapper/207:55:012
591606992017,1cyclictest0-21swapper/207:30:012
591606992017,1cyclictest0-21swapper/207:15:012
591606992015,1cyclictest0-21swapper/209:05:032
591605992017,2cyclictest935596-21/usr/sbin/munin11:25:011
591605992017,2cyclictest921414-21munin-plugin-st11:15:021
591605992017,2cyclictest913645-21latency_hist11:10:021
591605992017,2cyclictest598240-21aten_repower_cu07:15:031
591605992017,2cyclictest0-21swapper/108:48:401
591605992013,3cyclictest835314-21kthreadcore10:15:051
591605992012,3cyclictest872543-21kthreadcore10:40:051
591605992012,3cyclictest0-21swapper/112:00:041
59160499209,6cyclictest0-21swapper/007:45:000
59160499208,6cyclictest1309-21mta-sts-daemon09:59:250
591604992018,1cyclictest943296-21systemctl11:30:020
59160499201,7cyclictest662117-21perl08:10:010
591604992017,2cyclictest688-21in:imuxsock07:55:010
591604992017,2cyclictest591602-21cyclictest09:25:000
591604992016,2cyclictest899386-21kthreadcore11:00:020
1157598200,6rtkit-daemon1309-21mta-sts-daemon11:09:400
591606991917,1cyclictest0-21swapper/211:45:062
591606991917,1cyclictest0-21swapper/209:25:002
591606991916,1cyclictest0-21swapper/211:15:012
591606991916,1cyclictest0-21swapper/211:10:012
591606991916,1cyclictest0-21swapper/209:45:012
591606991916,1cyclictest0-21swapper/208:35:022
591606991916,1cyclictest0-21swapper/208:05:052
591605991916,2cyclictest987573-21gltestperf12:00:021
591605991916,2cyclictest742765-21ls09:15:001
591605991915,2cyclictest0-21swapper/110:15:031
591605991915,2cyclictest0-21swapper/110:15:031
59160499198,6cyclictest0-21swapper/011:35:050
591604991916,2cyclictest928449-21gltestperf11:20:020
591604991916,2cyclictest780408-21cut09:40:030
591604991916,2cyclictest737233-21kthreadcore09:10:040
591604991916,2cyclictest729711-21ps09:05:030
591604991916,2cyclictest716742-21latency_hist08:55:010
591604991916,2cyclictest699137-21irqcore08:40:030
591604991916,2cyclictest664-21dbus-daemon10:30:030
591604991916,2cyclictest0-21swapper/009:00:020
591604991916,2cyclictest0-21swapper/009:00:020
591604991912,6cyclictest821266-21kthreadcore10:05:070
591604991911,4cyclictest0-21swapper/011:10:110
3240591190,2phc2sys0-21swapper/309:28:183
591606991816,1cyclictest0-21swapper/211:00:032
591606991816,1cyclictest0-21swapper/207:50:012
591606991816,1cyclictest0-21swapper/207:20:032
591606991816,1cyclictest0-21swapper/207:20:032
591606991815,1cyclictest0-21swapper/210:35:012
591606991815,1cyclictest0-21swapper/209:55:002
591606991815,1cyclictest0-21swapper/209:49:592
591606991815,1cyclictest0-21swapper/209:15:062
591606991815,1cyclictest0-21swapper/209:10:042
591605991816,1cyclictest1306-21mta-sts-daemon10:05:031
591605991815,2cyclictest886228-21kthreadcore10:50:051
591605991815,2cyclictest844030-21pmu-power10:20:091
591605991815,2cyclictest791659-21kthreadcore09:45:061
591605991815,2cyclictest1-21systemd07:10:021
591605991812,5cyclictest11561-21sendmail-mta07:33:111
59160499188,5cyclictest0-21swapper/011:00:130
59160499188,5cyclictest0-21swapper/010:04:430
591604991815,2cyclictest861739-21tail10:35:010
591604991815,2cyclictest742269-21/usr/sbin/munin09:15:110
591604991815,2cyclictest664-21dbus-daemon08:00:020
591604991815,2cyclictest619343-21cstates07:35:010
591604991815,2cyclictest607501-21if_eno107:25:010
591604991815,2cyclictest1-21systemd07:20:030
591604991815,2cyclictest0-21swapper/008:35:020
591604991813,2cyclictest1309-21mta-sts-daemon10:42:250
3240591180,2phc2sys0-21swapper/311:25:183
3240591180,2phc2sys0-21swapper/309:35:033
591606991715,1cyclictest0-21swapper/211:55:022
591606991715,1cyclictest0-21swapper/211:05:022
591606991715,1cyclictest0-21swapper/208:35:072
591606991714,1cyclictest0-21swapper/212:25:032
591606991714,1cyclictest0-21swapper/211:45:012
591606991714,1cyclictest0-21swapper/211:25:032
591606991714,1cyclictest0-21swapper/209:56:462
591606991714,1cyclictest0-21swapper/209:00:022
591606991714,1cyclictest0-21swapper/209:00:022
59160599178,4cyclictest0-21swapper/110:33:181
591605991715,1cyclictest637839-21head07:50:011
591605991714,2cyclictest765207-21sh09:30:001
591605991714,2cyclictest680526-21if_enp1s0.808:25:011
591605991714,2cyclictest1034-21runrttasks12:27:291
591605991713,3cyclictest674494-21/usr/sbin/munin08:20:011
591605991713,3cyclictest664-21dbus-daemon10:30:021
591605991713,3cyclictest0-21swapper/111:45:021
59160499173,9cyclictest0-21swapper/010:13:140
59160499173,9cyclictest0-21swapper/010:13:140
59160499172,4cyclictest11574-21rtkit-daemon10:38:360
591604991714,2cyclictest962325-21pmu-power11:40:080
591604991714,2cyclictest793507-21sh09:47:570
591604991714,2cyclictest674525-21if_err_enp1s0.808:20:010
591604991714,2cyclictest1307-21mta-sts-daemon07:25:080
591604991714,2cyclictest1034-21runrttasks09:27:370
3240591170,2phc2sys0-21swapper/312:27:023
3240591170,2phc2sys0-21swapper/311:39:163
3240591170,2phc2sys0-21swapper/310:11:183
3240591170,2phc2sys0-21swapper/310:11:183
591606991614,1cyclictest0-21swapper/210:43:132
591606991614,1cyclictest0-21swapper/208:45:032
591606991613,1cyclictest0-21swapper/212:05:102
591606991613,1cyclictest0-21swapper/210:51:512
591606991613,1cyclictest0-21swapper/210:14:582
591606991613,1cyclictest0-21swapper/210:14:582
591606991613,1cyclictest0-21swapper/209:30:062
591606991613,1cyclictest0-21swapper/207:45:012
591605991613,2cyclictest905503-21tr11:04:581
591605991613,2cyclictest750737-21fschecks_time09:20:021
591605991613,2cyclictest728925-21fschecks_count09:05:001
591605991613,2cyclictest664-21dbus-daemon12:15:011
591605991613,2cyclictest643627-21sh07:55:011
591605991613,2cyclictest626080-21if_err_enp1s007:40:021
591605991613,2cyclictest613387-21gltestperf07:30:001
591605991613,2cyclictest0-21swapper/110:00:011
591605991613,2cyclictest0-21swapper/108:45:021
591605991612,3cyclictest759-1atopacctd12:15:051
591605991612,3cyclictest757504-21kworker/u16:1+nfsiod09:51:291
591605991612,3cyclictest662670-21irqcore08:10:031
59160499167,2cyclictest0-21swapper/010:25:000
591604991613,2cyclictest836840-21grep10:15:110
591604991613,2cyclictest801545-21aten2.4-expect09:54:440
591604991613,2cyclictest710994-21grep08:50:020
591604991613,2cyclictest686735-21latency_hist08:30:020
591604991612,3cyclictest993810-21sshd12:04:240
591604991612,3cyclictest1309-21mta-sts-daemon11:54:350
591604991612,3cyclictest1035225-21kthreadcore12:30:040
3240591160,2phc2sys0-21swapper/309:45:023
3240591160,2phc2sys0-21swapper/309:19:513
591606991513,1cyclictest0-21swapper/212:00:042
591606991513,1cyclictest0-21swapper/210:25:052
591606991513,1cyclictest0-21swapper/210:20:332
591606991513,1cyclictest0-21swapper/210:06:292
591606991513,1cyclictest0-21swapper/208:30:022
591606991513,1cyclictest0-21swapper/208:20:022
591606991512,1cyclictest0-21swapper/212:17:482
591606991512,1cyclictest0-21swapper/211:35:102
59160599158,5cyclictest0-21swapper/110:40:011
59160599153,3cyclictest692538-21cat08:35:021
591605991513,1cyclictest631597-21cut07:45:011
591605991513,1cyclictest1053-21snmpd09:44:241
591605991512,2cyclictest969660-21head11:45:091
591605991512,2cyclictest710036-21/usr/sbin/munin08:50:111
591605991512,2cyclictest686396-21idleruntime-cro08:30:011
591605991512,2cyclictest1046301-21sh12:37:061
591605991512,2cyclictest1000838-21sh12:06:581
591605991511,3cyclictest730411-21kthreadcore09:05:041
591605991511,3cyclictest693624-21kthreadcore08:35:051
591605991511,3cyclictest1306-21mta-sts-daemon10:57:381
591605991511,3cyclictest1022524-21mailstats12:20:091
59160499158,1cyclictest0-21swapper/011:30:050
59160499157,4cyclictest591602-21cyclictest09:14:420
59160499151,9cyclictest1041220-21kthreadcore12:35:040
591604991512,2cyclictest714-21gdbus12:10:090
591604991512,2cyclictest668289-21gltestperf08:15:020
591604991512,2cyclictest656154-21gltestperf08:05:010
591604991512,2cyclictest597656-21switchtime07:15:020
591604991512,2cyclictest1033512-21kthreadcore12:30:020
591604991512,2cyclictest1009460-21/usr/sbin/munin12:15:080
591604991512,2cyclictest0-21swapper/007:50:010
3240591156,2phc2sys0-21swapper/310:56:563
3240591152,3phc2sys0-21swapper/308:40:053
3240591151,1phc2sys0-21swapper/310:43:523
3240591150,3phc2sys0-21swapper/312:13:063
3240591150,3phc2sys0-21swapper/311:02:023
3240591150,2phc2sys0-21swapper/309:14:343
591606991412,1cyclictest0-21swapper/212:25:042
591606991412,1cyclictest0-21swapper/209:35:042
591606991412,1cyclictest0-21swapper/208:50:012
591606991412,1cyclictest0-21swapper/207:40:012
591606991411,1cyclictest0-21swapper/212:31:032
591606991411,1cyclictest0-21swapper/208:50:042
591605991411,2cyclictest1309-21mta-sts-daemon09:23:551
591605991411,2cyclictest1307-21mta-sts-daemon07:55:071
591605991411,2cyclictest0-21swapper/108:00:031
591605991410,3cyclictest923696-21kthreadcore11:15:041
591604991411,2cyclictest759-1atopacctd08:40:030
591604991411,2cyclictest676506-21kthreadcore08:20:030
591604991411,2cyclictest1306-21mta-sts-daemon12:07:080
3240591140,2phc2sys0-21swapper/311:49:183
3240591140,1phc2sys0-21swapper/310:00:533
3240591140,1phc2sys0-21swapper/309:48:013
591606991311,1cyclictest0-21swapper/209:25:032
591606991311,1cyclictest0-21swapper/208:10:052
591606991311,1cyclictest0-21swapper/207:10:022
591606991310,1cyclictest0-21swapper/212:36:002
591606991310,1cyclictest0-21swapper/212:13:432
59160599136,5cyclictest1035353-21tr12:30:041
59160499138,1cyclictest191rcu_preempt12:22:240
3240591134,2phc2sys0-21swapper/309:56:033
3240591131,3phc2sys0-21swapper/311:32:023
3240591131,2phc2sys0-21swapper/307:25:063
3240591130,7phc2sys0-21swapper/307:24:563
3240591130,2phc2sys0-21swapper/312:23:473
3240591130,2phc2sys0-21swapper/312:05:173
3240591130,2phc2sys0-21swapper/310:16:433
3240591130,1phc2sys0-21swapper/311:08:383
3240591122,2phc2sys0-21swapper/308:05:093
3240591121,4phc2sys0-21swapper/311:59:433
3240591120,3phc2sys0-21swapper/312:04:453
3240591120,2phc2sys0-21swapper/312:19:483
3240591120,1phc2sys0-21swapper/310:46:143
3240591120,1phc2sys0-21swapper/310:37:353
8223512110,2sleep30-21swapper/310:05:573
3240591113,4phc2sys0-21swapper/307:15:013
3240591112,2phc2sys0-21swapper/311:18:323
3240591110,3phc2sys0-21swapper/310:29:543
3240591110,2phc2sys0-21swapper/311:53:083
3240591110,2phc2sys0-21swapper/311:42:293
3240591110,2phc2sys0-21swapper/309:30:153
3240591110,2phc2sys0-21swapper/309:21:363
3240591110,1phc2sys0-21swapper/309:09:063
3240591110,1phc2sys0-21swapper/308:59:483
3240591110,1phc2sys0-21swapper/308:59:483
3240591110,1phc2sys0-21swapper/308:52:313
3240591110,1phc2sys0-21swapper/307:53:273
59160499104,4cyclictest664-21dbus-daemon07:10:020
3240591102,2phc2sys0-21swapper/309:52:543
3240591102,2phc2sys0-21swapper/308:02:133
3240591101,4phc2sys0-21swapper/308:39:423
3240591101,2phc2sys0-21swapper/312:37:523
3240591101,2phc2sys0-21swapper/312:35:033
3240591101,2phc2sys0-21swapper/308:25:303
3240591101,2phc2sys0-21swapper/307:19:413
3240591100,2phc2sys0-21swapper/311:14:153
3240591100,2phc2sys0-21swapper/310:53:343
3240591100,2phc2sys0-21swapper/310:20:083
324059190,2phc2sys0-21swapper/311:20:053
324059190,2phc2sys0-21swapper/310:30:183
324059190,2phc2sys0-21swapper/308:45:063
324059190,2phc2sys0-21swapper/308:23:223
324059190,2phc2sys0-21swapper/308:15:083
324059190,2phc2sys0-21swapper/308:10:223
324059190,2phc2sys0-21swapper/307:55:043
324059190,2phc2sys0-21swapper/307:40:053
324059190,2phc2sys0-21swapper/307:35:123
324059190,2phc2sys0-21swapper/307:30:463
324059190,2phc2sys0-21swapper/307:05:033
324059180,2phc2sys0-21swapper/308:30:073
324059180,2phc2sys0-21swapper/307:45:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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