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2026-08-23 - 22:42
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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 Aug 23, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
362680721770,2sleep30-21swapper/308:30:053
371739921130,2sleep1341rcuc/109:30:041
389345121110,2sleep13893363-21ssh11:10:021
393944621080,1sleep0241rcuc/011:35:020
39977962910,2sleep30-21swapper/312:06:243
40409942490,1sleep00-21swapper/012:30:060
36436322280,2sleep30-21swapper/308:45:003
351526399289,10cyclictest0-21swapper/011:20:010
351526399288,10cyclictest0-21swapper/009:59:390
351526399276,11cyclictest0-21swapper/009:34:400
351526399272,3cyclictest0-21swapper/012:00:480
351526399268,9cyclictest0-21swapper/011:29:390
3515263992613,9cyclictest3741186-21909:45:000
351526399257,9cyclictest0-21swapper/011:59:400
351526399243,16cyclictest0-21swapper/010:47:210
3515263992418,5cyclictest24617-21JS14:54:060
351526399231,6cyclictest3656754-21apt-get08:54:400
3515274992218,3cyclictest3632040-21kthreadcore08:35:031
351527499221,16cyclictest0-21swapper/109:45:001
351526399228,7cyclictest0-21swapper/012:10:090
351526399226,2cyclictest0-21swapper/009:16:590
351526399225,2cyclictest0-21swapper/009:23:140
351526399221,5cyclictest4043940-21/usr/sbin/munin12:35:050
3515263992211,10cyclictest3847678-21cpuspeed_turbos10:44:570
2213291221,10phc2sys0-21swapper/310:54:413
351527499214,11cyclictest3916942-21sh11:20:491
3515274992117,3cyclictest3929325-21/usr/sbin/munin11:30:011
3515274992117,3cyclictest3795598-21kthreadcore10:15:031
3515274992116,3cyclictest3644277-21irqrtprio08:45:021
3515274992112,4cyclictest3782347-21pmu-power10:05:091
351526399219,1cyclictest560-21hwrng07:37:390
351526399219,1cyclictest560-21hwrng07:37:390
351526399216,2cyclictest0-21swapper/011:35:050
351526399215,9cyclictest0-21swapper/008:47:110
351526399215,2cyclictest0-21swapper/011:22:090
351526399215,2cyclictest0-21swapper/010:37:500
351526399215,2cyclictest0-21swapper/010:29:350
351526399215,2cyclictest0-21swapper/010:16:550
351526399215,2cyclictest0-21swapper/010:12:100
351526399215,2cyclictest0-21swapper/009:53:160
351526399215,2cyclictest0-21swapper/009:25:520
351526399215,2cyclictest0-21swapper/009:14:170
351526399215,2cyclictest0-21swapper/009:14:170
3515263992116,4cyclictest3639443-21kthreadcore08:40:030
3515263992112,8cyclictest3515254-21cyclictest11:40:070
351526399210,5cyclictest3727187-21cut09:35:060
2447398210,4rtkit-daemon4015433-21ssh12:16:150
2447398210,2rtkit-daemon3515254-21cyclictest07:24:280
3515279992017,1cyclictest0-21swapper/212:15:072
3515274992017,2cyclictest3947521-21grep11:40:031
3515274992017,2cyclictest3854214-21unixbench_singl10:45:111
3515274992017,2cyclictest376-21systemd-journal08:15:011
3515274992017,2cyclictest3534311-21kthreadcore07:25:021
3515274992017,2cyclictest0-21swapper/109:55:011
3515274992016,3cyclictest4005648-21ptp4l-jitter12:10:071
3515274992016,3cyclictest3967256-21grep11:50:031
3515274992016,3cyclictest24615-21JS14:54:061
3515274992012,7cyclictest376-21systemd-journal10:40:011
351526399208,10cyclictest3964734-21irqcore11:50:000
351526399205,2cyclictest0-21swapper/010:30:110
351526399204,8cyclictest0-21swapper/011:09:410
351526399204,2cyclictest0-21swapper/011:50:480
351526399204,2cyclictest0-21swapper/010:51:090
351526399204,2cyclictest0-21swapper/010:07:270
351526399201,7cyclictest0-21swapper/012:26:420
351526399201,7cyclictest0-21swapper/010:58:230
351526399201,6cyclictest3802726-21/usr/sbin/munin10:20:060
351526399201,6cyclictest3644378-21munin-run08:45:020
351526399201,6cyclictest3573887-21df_inode07:54:590
351526399201,5cyclictest4025242-21rm12:23:090
3515263992015,4cyclictest3663661-21/usr/sbin/munin09:00:030
3515263992015,4cyclictest3565646-21sendmail_mailtr07:45:090
351526399200,9cyclictest3749069-21/usr/sbin/munin09:50:010
351526399200,4cyclictest3673118-21grep09:05:030
2213291200,2phc2sys0-21swapper/311:56:073
3515279991916,1cyclictest0-21swapper/210:40:012
351527499194,6cyclictest341rcuc/107:10:031
3515274991916,2cyclictest3686975-21cron09:15:011
3515274991916,2cyclictest3686975-21cron09:15:011
3515274991916,2cyclictest3567294-21cron07:50:001
3515274991916,2cyclictest3539404-21appstreamcli07:30:041
3515274991915,3cyclictest3611528-21kthreadcore08:20:031
3515274991914,3cyclictest3608942-21latency_hist08:20:031
351526399194,2cyclictest0-21swapper/012:09:210
351526399191,2cyclictest3894912-21grep11:10:030
3515263991911,7cyclictest3515254-21cyclictest08:10:020
351526399190,7cyclictest3559097-21users07:40:090
3515279991815,1cyclictest0-21swapper/212:00:482
351527499186,7cyclictest3909991-21runrttasks11:19:471
3515274991816,2cyclictest351ktimers/109:21:571
3515274991815,2cyclictest3823148-21kthreadcore10:30:041
3515274991815,2cyclictest3546531-21sort07:35:011
3515274991815,2cyclictest1-21systemd12:40:031
3515274991814,3cyclictest797-21polkitd08:30:021
3515274991814,2cyclictest376-21systemd-journal07:45:021
3515274991814,2cyclictest3751620-21kthreadcore09:50:021
3515274991813,4cyclictest3979261-21unixbench_singl11:55:101
3515274991813,3cyclictest4036826-21sh12:30:031
3515274991812,2cyclictest82050irq/121-eno111:00:041
3515274991810,4cyclictest82050irq/121-eno112:05:051
351526399183,9cyclictest0-21swapper/007:29:060
3515263991812,5cyclictest3575538-21kthreadcore07:55:030
351526399180,5cyclictest3882591-21rm11:03:260
2213291181,5phc2sys0-21swapper/311:44:413
2213291180,3phc2sys0-21swapper/307:50:013
2213291180,2phc2sys0-21swapper/311:36:113
40287272170,1sleep20-21swapper/212:25:032
3515279991714,1cyclictest0-21swapper/210:44:092
3515279991714,1cyclictest0-21swapper/210:15:192
3515279991714,1cyclictest0-21swapper/207:45:092
351527499174,8cyclictest3974299-21awk11:55:011
351527499171,4cyclictest3802771-21ssh10:19:411
3515274991714,2cyclictest932-1atopacctd10:45:031
3515274991714,2cyclictest4027329-21irqrtprio12:25:011
3515274991714,2cyclictest4018691-21systemd-run12:20:021
3515274991714,2cyclictest3876010-21ssh11:00:021
3515274991713,3cyclictest3900920-21/usr/sbin/munin11:15:021
3515274991713,3cyclictest3868101-21tr10:55:041
3515274991713,3cyclictest3773415-21mailstats10:00:081
3515274991713,3cyclictest3648808-21pmu-power08:45:071
3515274991713,3cyclictest3520542-21aten_repower_po07:14:511
3515274991713,2cyclictest3831115-21kthreadcore10:35:031
3515274991712,4cyclictest3735693-21ssh09:40:031
351527499170,4cyclictest3952045-21phc2sys-jitter11:40:081
351526399171,4cyclictest3622625-21awk08:30:010
3515263991712,4cyclictest3604387-21kthreadcore08:15:040
3515263991711,5cyclictest3773217-21pmu-power10:00:070
3515263991711,5cyclictest3626405-21kthreadcore08:30:050
3515263991711,5cyclictest3599390-21kthreadcore08:10:040
3515263991711,5cyclictest3583767-21kthreadcore08:00:030
3515263991711,5cyclictest3545007-21timerwakeupswit07:30:120
3515263991711,5cyclictest3519151-21kthreadcore07:10:040
3515263991710,6cyclictest3676257-21kthreadcore09:05:050
2213291170,3phc2sys0-21swapper/310:25:233
3515279991614,1cyclictest0-21swapper/209:45:012
3515274991613,2cyclictest3768022-21munin-run10:00:001
3515274991613,2cyclictest3671550-21cron09:05:001
3515274991612,3cyclictest3691157-21kthreadcore09:15:071
3515274991612,3cyclictest3637204-21kthreadcore08:40:021
3515274991612,3cyclictest3586695-21unixbench-2d08:00:101
3515274991612,3cyclictest3583236-21kthreadcore08:00:031
3515274991612,3cyclictest3571954-21kthreadcore07:50:041
3515274991611,4cyclictest4040663-21kthreadcore12:30:061
3515274991611,4cyclictest3523806-21cstates07:15:041
351527499160,7cyclictest1-21systemd11:35:041
3515263991610,5cyclictest3613454-21kthreadcore08:20:050
3515263991610,4cyclictest3517168-21latency_hist07:10:030
2213291161,4phc2sys0-21swapper/307:34:403
2213291160,3phc2sys0-21swapper/309:31:583
2213291160,2phc2sys0-21swapper/312:35:313
2213291160,2phc2sys0-21swapper/312:19:473
2213291160,2phc2sys0-21swapper/309:28:433
3515279991513,1cyclictest0-21swapper/211:10:052
3515279991512,1cyclictest0-21swapper/212:15:002
3515279991512,1cyclictest0-21swapper/211:29:572
3515279991512,1cyclictest0-21swapper/211:15:052
3515279991512,1cyclictest0-21swapper/210:29:592
3515279991512,1cyclictest0-21swapper/209:49:592
3515279991512,1cyclictest0-21swapper/209:12:312
3515279991512,1cyclictest0-21swapper/209:12:312
3515279991512,1cyclictest0-21swapper/209:05:022
3515279991512,1cyclictest0-21swapper/208:55:012
3515279991512,1cyclictest0-21swapper/208:44:582
3515279991512,1cyclictest0-21swapper/208:20:092
3515279991512,1cyclictest0-21swapper/208:15:012
3515279991512,1cyclictest0-21swapper/207:58:112
3515279991512,1cyclictest0-21swapper/207:44:592
3515279991512,1cyclictest0-21swapper/207:39:562
3515279991512,1cyclictest0-21swapper/207:39:562
351527499159,4cyclictest0-21swapper/108:55:031
351527499153,5cyclictest3722738-21ls09:34:581
3515274991511,3cyclictest3986230-21kthreadcore12:00:051
3515274991511,3cyclictest3806873-21kthreadcore10:20:041
3515274991511,3cyclictest3677803-21aten_repower_vo09:09:551
3515274991511,3cyclictest3663015-21switchtime08:55:091
351527499150,5cyclictest3554408-21grep07:40:001
351527499150,5cyclictest3554408-21grep07:40:001
2213291151,6phc2sys0-21swapper/308:04:413
2213291151,2phc2sys0-21swapper/311:03:443
2213291150,2phc2sys0-21swapper/310:33:163
2213291150,2phc2sys0-21swapper/307:50:073
351527999141,5cyclictest0-21swapper/207:54:412
3515279991412,1cyclictest0-21swapper/211:30:102
3515279991412,1cyclictest0-21swapper/210:30:102
3515279991412,1cyclictest0-21swapper/207:35:002
3515279991411,1cyclictest0-21swapper/212:39:012
3515279991411,1cyclictest0-21swapper/212:30:062
3515279991411,1cyclictest0-21swapper/212:30:002
3515279991411,1cyclictest0-21swapper/211:46:452
3515279991411,1cyclictest0-21swapper/211:38:312
3515279991411,1cyclictest0-21swapper/211:05:062
3515279991411,1cyclictest0-21swapper/211:00:052
3515279991411,1cyclictest0-21swapper/210:50:402
3515279991411,1cyclictest0-21swapper/210:05:092
3515279991411,1cyclictest0-21swapper/209:50:102
3515279991411,1cyclictest0-21swapper/209:30:082
3515279991411,1cyclictest0-21swapper/209:29:572
3515279991411,1cyclictest0-21swapper/209:15:072
3515279991411,1cyclictest0-21swapper/208:30:042
3515279991411,1cyclictest0-21swapper/208:15:052
3515279991411,1cyclictest0-21swapper/207:14:582
2213291140,5phc2sys0-21swapper/309:54:403
2213291140,4phc2sys0-21swapper/311:24:403
2213291140,2phc2sys0-21swapper/311:47:063
2213291140,2phc2sys0-21swapper/309:23:283
2213291140,2phc2sys0-21swapper/309:19:553
2213291140,1phc2sys0-21swapper/310:42:043
3515279991311,1cyclictest0-21swapper/212:05:032
3515279991311,1cyclictest0-21swapper/211:50:052
3515279991311,1cyclictest0-21swapper/211:40:052
3515279991311,1cyclictest0-21swapper/211:24:572
3515279991311,1cyclictest0-21swapper/210:55:052
3515279991311,1cyclictest0-21swapper/210:45:512
3515279991311,1cyclictest0-21swapper/210:20:052
3515279991311,1cyclictest0-21swapper/209:55:042
3515279991311,1cyclictest0-21swapper/209:20:052
3515279991311,1cyclictest0-21swapper/209:05:042
3515279991311,1cyclictest0-21swapper/208:59:572
3515279991311,1cyclictest0-21swapper/208:45:042
3515279991311,1cyclictest0-21swapper/208:05:052
3515279991311,1cyclictest0-21swapper/208:00:032
3515279991311,1cyclictest0-21swapper/207:25:042
3515279991311,1cyclictest0-21swapper/207:20:042
3515279991311,1cyclictest0-21swapper/207:15:042
3515279991310,1cyclictest0-21swapper/210:14:172
3515279991310,1cyclictest0-21swapper/208:29:092
2213291131,5phc2sys0-21swapper/312:34:383
2213291131,4phc2sys0-21swapper/308:19:403
2213291131,3phc2sys0-21swapper/309:01:123
2213291131,3phc2sys0-21swapper/307:44:423
2213291131,2phc2sys0-21swapper/308:35:043
2213291130,2phc2sys0-21swapper/310:48:573
2213291130,1phc2sys0-21swapper/311:05:103
39084022120,3sleep30-21swapper/311:16:383
351527999129,1cyclictest0-21swapper/211:56:032
351527999129,1cyclictest0-21swapper/209:36:262
351527999129,1cyclictest0-21swapper/208:40:032
2213291122,2phc2sys0-21swapper/311:27:373
2213291121,3phc2sys0-21swapper/308:49:393
2213291121,2phc2sys0-21swapper/308:54:403
2213291120,2phc2sys0-21swapper/310:19:263
2213291120,2phc2sys0-21swapper/309:43:583
2213291120,2phc2sys0-21swapper/309:09:513
37764222110,2sleep30-21swapper/310:04:583
351527999119,1cyclictest0-21swapper/210:00:042
351527999119,1cyclictest0-21swapper/207:10:032
2213291114,2phc2sys0-21swapper/307:20:023
2213291112,2phc2sys0-21swapper/312:05:013
2213291111,4phc2sys0-21swapper/307:09:403
2213291111,2phc2sys0-21swapper/312:10:543
2213291110,3phc2sys0-21swapper/311:54:333
2213291110,2phc2sys0-21swapper/311:13:063
2213291110,2phc2sys0-21swapper/310:22:233
2213291110,2phc2sys0-21swapper/309:49:393
2213291110,2phc2sys0-21swapper/309:37:003
2213291110,2phc2sys0-21swapper/307:30:033
2213291110,1phc2sys0-21swapper/308:21:013
2213291110,1phc2sys0-21swapper/308:09:153
2213291103,1phc2sys0-21swapper/307:56:243
2213291101,2phc2sys0-21swapper/311:30:183
2213291101,2phc2sys0-21swapper/308:30:033
2213291100,3phc2sys0-21swapper/310:13:133
2213291100,3phc2sys0-21swapper/310:08:563
2213291100,2phc2sys0-21swapper/312:20:163
2213291100,2phc2sys0-21swapper/310:55:063
2213291100,2phc2sys0-21swapper/310:36:303
2213291100,2phc2sys0-21swapper/309:56:043
2213291100,2phc2sys0-21swapper/309:10:033
2213291100,2phc2sys0-21swapper/309:10:033
2213291100,2phc2sys0-21swapper/308:13:123
2213291100,1phc2sys0-21swapper/312:26:593
2213291100,1phc2sys0-21swapper/307:21:253
221329191,2phc2sys0-21swapper/307:15:033
221329190,2phc2sys0-21swapper/308:55:563
221329190,2phc2sys0-21swapper/307:35:083
221329190,2phc2sys0-21swapper/307:35:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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