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2026-04-08 - 22:16
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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 Wed Apr 08, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3433816993128,1cyclictest0-21swapper/212:25:002
343381599274,6cyclictest1290-21dbus-daemon08:30:001
383433398260,7rtkit-daemon3851704-21mta-sts-daemon10:29:201
383433398260,3rtkit-daemon3851705-21mta-sts-daemon12:24:300
3433815992413,4cyclictest1-21systemd08:40:011
3433815992410,3cyclictest0-21swapper/111:44:201
3433814992421,2cyclictest3433812-21cyclictest07:30:010
3433814992417,6cyclictest0-21swapper/012:10:010
3433814992413,6cyclictest0-21swapper/009:15:010
3433816992318,3cyclictest0-21swapper/208:50:002
3433816992313,2cyclictest0-21swapper/211:05:012
3433816992313,2cyclictest0-21swapper/211:05:012
3433815992318,2cyclictest134050irq/121-eno111:10:011
3433814992319,2cyclictest3617241-21sh09:30:030
3433814992314,5cyclictest3834855-21runrttasks11:52:190
383433398220,7rtkit-daemon3851703-21mta-sts-daemon10:00:080
383433398220,4rtkit-daemon3851705-21mta-sts-daemon09:53:550
383433398220,3rtkit-daemon3851704-21mta-sts-daemon07:56:000
3433816992214,1cyclictest0-21swapper/207:40:012
3433816992213,5cyclictest0-21swapper/210:05:582
3433816992213,1cyclictest0-21swapper/210:25:022
3433815992215,6cyclictest3789427-21diskmemload11:22:481
3433815992210,2cyclictest0-21swapper/109:35:001
3433814992212,6cyclictest0-21swapper/009:10:020
383433398210,8rtkit-daemon3851705-21mta-sts-daemon08:50:570
383433398210,3rtkit-daemon3851704-21mta-sts-daemon08:17:180
383433398210,2rtkit-daemon3684566-21ssh10:14:310
3433816992116,3cyclictest0-21swapper/208:05:002
3433814992118,2cyclictest3797644-21cron11:30:000
3433814992113,4cyclictest3601384-21runrttasks09:18:580
383433398200,3rtkit-daemon3851704-21mta-sts-daemon08:32:440
34876392200,0sleep03487641-21sort07:51:010
3433815992017,2cyclictest3617165-21latency_hist09:30:021
3433815992013,5cyclictest1-21systemd12:40:011
3433815992013,3cyclictest3687265-21kthreadcore10:16:051
343381599200,19cyclictest0-21swapper/111:59:071
3433814992017,2cyclictest3880722-21gmain08:10:010
3433814992017,2cyclictest3880722-21gmain08:10:010
3433814992012,7cyclictest3836395-21aten2.4-expect11:55:590
3433814992012,3cyclictest3840937-21lldpd10:50:210
3433816991917,1cyclictest0-21swapper/211:30:012
3433816991916,2cyclictest0-21swapper/209:01:072
3433816991916,1cyclictest0-21swapper/211:55:002
3433816991916,1cyclictest0-21swapper/208:41:002
3433816991916,1cyclictest0-21swapper/208:31:112
3433815991916,2cyclictest3880722-21gmain09:07:591
3433815991916,2cyclictest3873320-21latency_hist12:20:011
3433815991916,2cyclictest3866055-21systemd12:15:021
3433815991916,2cyclictest3835767-21grep11:55:001
3433815991916,2cyclictest3768481-21cstates11:11:011
3433815991916,2cyclictest0-21swapper/111:30:001
3433815991912,3cyclictest3592672-21switchtime09:11:111
3433815991911,3cyclictest0-21swapper/110:25:011
343381499198,6cyclictest0-21swapper/011:40:590
3433814991912,5cyclictest3782751-21sh11:20:010
3433814991911,4cyclictest3824268-21kthreadcore11:46:060
343381499190,3cyclictest3661726-21ssh09:58:420
2649091190,2phc2sys0-21swapper/310:38:593
3433816991816,1cyclictest0-21swapper/209:06:062
3433816991816,1cyclictest0-21swapper/208:56:062
3433816991815,1cyclictest0-21swapper/211:41:062
3433816991815,1cyclictest0-21swapper/211:06:092
3433816991815,1cyclictest0-21swapper/210:41:122
3433816991815,1cyclictest0-21swapper/210:40:012
3433816991815,1cyclictest0-21swapper/210:30:002
3433816991815,1cyclictest0-21swapper/210:15:012
3433816991815,1cyclictest0-21swapper/210:01:062
3433816991815,1cyclictest0-21swapper/209:16:022
3433816991815,1cyclictest0-21swapper/209:11:132
3433816991815,1cyclictest0-21swapper/207:46:062
3433816991814,2cyclictest0-21swapper/212:30:002
3433816991814,1cyclictest0-21swapper/207:15:022
3433815991815,2cyclictest3639668-21systemd09:45:001
3433815991815,2cyclictest0-21swapper/110:45:011
3433815991814,2cyclictest0-21swapper/112:35:021
3433815991811,3cyclictest3549728-21tail08:41:001
343381499189,2cyclictest0-21swapper/009:36:080
3433814991815,2cyclictest3866801-21cstates12:16:000
3433814991815,2cyclictest3677213-21sh10:10:000
3433814991815,2cyclictest1290-21dbus-daemon07:15:020
3433814991811,3cyclictest3812890-21ssh11:39:560
2649091181,2phc2sys0-21swapper/309:26:073
2649091180,3phc2sys0-21swapper/312:23:163
3433816991715,1cyclictest0-21swapper/211:21:002
3433816991715,1cyclictest0-21swapper/207:16:082
3433816991714,1cyclictest0-21swapper/212:31:062
3433816991714,1cyclictest0-21swapper/212:16:062
3433816991714,1cyclictest0-21swapper/211:56:072
3433816991714,1cyclictest0-21swapper/211:31:072
3433816991714,1cyclictest0-21swapper/211:20:002
3433816991714,1cyclictest0-21swapper/209:36:062
3433816991714,1cyclictest0-21swapper/209:26:042
3433816991714,1cyclictest0-21swapper/208:30:002
3433816991714,1cyclictest0-21swapper/208:16:052
3433816991714,1cyclictest0-21swapper/207:41:062
3433816991713,2cyclictest0-21swapper/209:50:012
3433816991713,2cyclictest0-21swapper/208:36:032
3433816991713,2cyclictest0-21swapper/207:51:042
3433815991714,2cyclictest3882755-21irqstats12:26:051
3433815991714,2cyclictest3828334-21sh11:50:011
3433815991714,2cyclictest3776354-21if_enp1s0.811:16:031
3433815991714,2cyclictest3660563-21cut09:56:111
3433815991714,2cyclictest3632323-21munin-plugin-st09:40:011
3433815991714,2cyclictest3455283-21sh07:25:011
3433815991713,3cyclictest3731815-21kthreadcore10:46:051
3433814991714,2cyclictest3634631-21kthreadcore09:41:050
3433814991714,2cyclictest3530404-21latency_hist08:25:000
3433814991714,2cyclictest3455019-21gpgconf07:25:010
3433814991710,6cyclictest0-21swapper/012:35:010
2649091171,5phc2sys0-21swapper/309:01:003
3433816991614,1cyclictest0-21swapper/212:06:012
3433816991614,1cyclictest0-21swapper/212:01:042
3433816991614,1cyclictest0-21swapper/211:11:002
3433816991614,1cyclictest0-21swapper/210:51:052
3433816991614,1cyclictest0-21swapper/210:46:042
3433816991614,1cyclictest0-21swapper/209:52:252
3433816991614,1cyclictest0-21swapper/209:41:022
3433816991614,1cyclictest0-21swapper/208:51:062
3433816991614,1cyclictest0-21swapper/208:21:072
3433816991613,1cyclictest0-21swapper/212:11:062
3433816991613,1cyclictest0-21swapper/210:56:042
3433816991613,1cyclictest0-21swapper/210:31:062
3433816991613,1cyclictest0-21swapper/208:06:042
3433816991613,1cyclictest0-21swapper/208:06:042
3433816991613,1cyclictest0-21swapper/207:26:062
3433816991613,1cyclictest0-21swapper/207:10:012
343381599169,6cyclictest3851705-21mta-sts-daemon10:08:251
343381599169,6cyclictest3851702-21mta-sts-daemon12:05:211
343381599165,2cyclictest191rcu_preempt11:30:581
343381599165,2cyclictest134050irq/121-eno111:39:561
3433815991613,2cyclictest3850854-21systemd-run12:05:011
3433815991613,2cyclictest3824500-21cron07:14:551
3433815991613,2cyclictest3757644-21kthreadcore11:01:071
3433815991613,2cyclictest3757644-21kthreadcore11:01:071
3433815991613,2cyclictest3708734-21if_enp1s010:31:031
3433815991613,2cyclictest3683108-21mailstats10:11:101
3433815991613,2cyclictest3669823-21systemd-run10:05:001
3433815991613,2cyclictest3524151-21sendmail08:20:001
343381499168,4cyclictest3827634-1atopacctd10:23:560
343381499168,4cyclictest0-21swapper/007:46:100
343381499166,6cyclictest0-21swapper/011:20:350
343381499165,6cyclictest0-21swapper/010:36:000
3433814991613,2cyclictest3834332-21rtkit-daemon11:01:400
3433814991613,2cyclictest3834332-21rtkit-daemon11:01:400
3433814991613,2cyclictest3705635-21wc10:26:110
3433814991613,2cyclictest3690901-21unixbench_multi10:16:120
3433814991613,2cyclictest3641020-21hddtemp_smartct09:46:030
3433814991613,2cyclictest3624675-21sh09:35:010
3433814991613,2cyclictest3553611-21kthreadcore08:41:070
3433814991612,2cyclictest0-21swapper/011:00:020
3433814991610,5cyclictest3851705-21mta-sts-daemon10:33:350
3433814991610,1cyclictest3851702-21mta-sts-daemon11:14:330
2649091161,3phc2sys0-21swapper/311:30:583
2649091160,2phc2sys0-21swapper/311:26:243
2649091160,2phc2sys0-21swapper/310:48:043
2649091160,2phc2sys0-21swapper/309:41:403
37039842150,2sleep30-21swapper/310:26:073
3433816991513,1cyclictest0-21swapper/212:36:032
3433816991513,1cyclictest0-21swapper/211:45:422
3433816991513,1cyclictest0-21swapper/210:16:072
3433816991513,1cyclictest0-21swapper/209:56:062
3433816991513,1cyclictest0-21swapper/209:31:042
3433816991513,1cyclictest0-21swapper/207:31:042
3433816991513,1cyclictest0-21swapper/207:21:002
3433816991512,1cyclictest0-21swapper/211:40:002
3433816991512,1cyclictest0-21swapper/209:25:012
3433816991512,1cyclictest0-21swapper/208:15:002
343381599159,2cyclictest383433398rtkit-daemon08:21:411
343381599159,2cyclictest134050irq/121-eno109:23:431
3433815991512,2cyclictest3743141-21mailstats10:51:091
3433815991512,2cyclictest3716730-21kthreadcore10:36:071
3433815991512,2cyclictest3648892-21irqrtprio09:51:061
3433815991512,2cyclictest3564913-21kthreadcore08:51:071
3433815991512,2cyclictest3487795-21gltestperf07:51:021
3433815991512,2cyclictest3462671-21fschecks_count07:31:021
3433815991512,2cyclictest3433812-21cyclictest08:35:011
3433815991512,2cyclictest0-21swapper/108:10:011
3433815991512,2cyclictest0-21swapper/108:10:011
3433815991511,3cyclictest3499175-21cron08:00:001
343381499158,5cyclictest3472912-21tr07:36:050
343381499158,2cyclictest3729830-21apt10:45:000
343381499154,6cyclictest0-21swapper/011:05:580
3433814991512,2cyclictest3851705-21mta-sts-daemon12:29:140
3433814991512,2cyclictest3851702-21mta-sts-daemon08:30:010
3433814991512,2cyclictest3803528-21needreboot11:31:080
3433814991512,2cyclictest3609227-21latency_hist09:25:010
3433814991512,2cyclictest3548058-21kthreadcore08:36:080
3433814991512,2cyclictest0-21swapper/012:05:020
343381499150,5cyclictest3858886-21apt-get12:10:580
2649091150,1phc2sys0-21swapper/309:48:453
2649091150,1phc2sys0-21swapper/309:20:193
3433816991412,1cyclictest0-21swapper/207:55:592
3433815991411,2cyclictest3851704-21mta-sts-daemon09:15:441
3433815991411,2cyclictest3640384-21aten2.4-expect09:46:001
3433815991411,2cyclictest3517060-21pmu-power08:11:091
3433815991411,2cyclictest3481087-21cpuspeed_turbos07:46:001
3433815991411,2cyclictest3475911-21kthreadcore07:41:051
3433815991411,2cyclictest3456129-21fschecks_count07:26:021
3433815991410,3cyclictest3875584-21kthreadcore12:21:051
3433815991410,3cyclictest3569811-21kthreadcore08:56:041
3433815991410,3cyclictest3557793-21kthreadcore08:46:051
3433815991410,3cyclictest3471755-21kthreadcore07:36:051
343381499145,5cyclictest0-21swapper/007:32:460
343381499143,4cyclictest3580270-21sshd09:03:150
343381499143,3cyclictest0-21swapper/012:35:590
343381499141,2cyclictest3517921-21munin-run08:15:000
3433814991411,2cyclictest3733205-21kthreadcore10:46:060
3433814991411,2cyclictest3558679-21kthreadcore08:46:060
3433814991411,2cyclictest3480642-21latency_hist07:45:020
3433814991411,2cyclictest3442256-21acpi07:15:030
2649091141,1phc2sys0-21swapper/310:31:383
2649091140,3phc2sys0-21swapper/311:57:353
2649091140,3phc2sys0-21swapper/311:01:533
2649091140,3phc2sys0-21swapper/311:01:533
2649091140,2phc2sys0-21swapper/312:35:233
2649091140,2phc2sys0-21swapper/312:09:563
2649091140,2phc2sys0-21swapper/311:51:033
2649091140,2phc2sys0-21swapper/309:15:183
2649091140,2phc2sys0-21swapper/308:16:143
343381599138,4cyclictest1-21systemd09:03:151
3433815991310,2cyclictest3499863-21cpuspeed_turbos08:01:001
3433815991310,2cyclictest3442617-21if_enp1s007:15:031
3433815991310,2cyclictest0-21swapper/110:56:011
3433814991310,2cyclictest3851704-21mta-sts-daemon08:01:030
3433814991310,2cyclictest3569578-21kthreadcore08:56:040
3433814991310,2cyclictest3433783-21/usr/sbin/munin07:10:010
2649091130,5phc2sys0-21swapper/309:55:593
2649091130,2phc2sys0-21swapper/312:01:533
2649091130,2phc2sys0-21swapper/311:49:043
2649091130,2phc2sys0-21swapper/311:19:363
2649091130,2phc2sys0-21swapper/311:12:143
2649091130,2phc2sys0-21swapper/311:08:203
2649091130,1phc2sys0-21swapper/311:38:203
2649091128,1phc2sys0-21swapper/308:09:163
2649091128,1phc2sys0-21swapper/308:09:163
2649091122,2phc2sys0-21swapper/312:17:043
2649091122,2phc2sys0-21swapper/310:21:083
2649091120,2phc2sys0-21swapper/312:28:023
2649091120,2phc2sys0-21swapper/311:42:373
2649091120,2phc2sys0-21swapper/310:16:153
2649091120,2phc2sys0-21swapper/310:05:483
2649091120,2phc2sys0-21swapper/310:00:273
2649091120,2phc2sys0-21swapper/308:47:403
2649091120,2phc2sys0-21swapper/307:31:333
2649091120,1phc2sys0-21swapper/310:51:543
2649091120,1phc2sys0-21swapper/308:43:353
2649091120,1phc2sys0-21swapper/308:27:203
2649091110,2phc2sys0-21swapper/310:56:113
2649091110,2phc2sys0-21swapper/309:52:543
2649091110,1phc2sys0-21swapper/308:01:243
2649091110,1phc2sys0-21swapper/307:58:273
2649091110,1phc2sys0-21swapper/307:39:203
383433398100,6rtkit-daemon3851704-21mta-sts-daemon07:09:071
2649091103,3phc2sys0-21swapper/308:56:063
2649091101,4phc2sys0-21swapper/309:36:003
2649091101,2phc2sys0-21swapper/308:11:093
2649091101,2phc2sys0-21swapper/307:06:063
2649091100,2phc2sys0-21swapper/312:31:433
2649091100,2phc2sys0-21swapper/312:11:543
2649091100,2phc2sys0-21swapper/309:33:063
2649091100,2phc2sys0-21swapper/309:06:133
2649091100,2phc2sys0-21swapper/307:50:583
2649091100,2phc2sys0-21swapper/307:26:013
2649091100,2phc2sys0-21swapper/307:15:593
2649091100,2phc2sys0-21swapper/307:11:063
2649091100,1phc2sys0-21swapper/309:12:463
2649091100,1phc2sys0-21swapper/307:41:163
264909191,3phc2sys0-21swapper/308:30:583
264909191,2phc2sys0-21swapper/307:46:053
264909190,3phc2sys0-21swapper/311:20:333
264909190,2phc2sys0-21swapper/310:40:313
264909190,2phc2sys0-21swapper/310:10:053
264909190,2phc2sys0-21swapper/308:50:573
264909190,2phc2sys0-21swapper/308:35:143
264909190,2phc2sys0-21swapper/308:21:473
264909190,2phc2sys0-21swapper/307:25:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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