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2026-06-17 - 17:06
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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 rackcslot4.osadl.org (updated Wed Jun 17, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33083812318278,26sleep10-21swapper/107:09:131
33080472260218,28sleep00-21swapper/007:05:380
34368962600,2sleep03436897-21sh10:58:210
179699560,4rtkit-daemon1795-21rtkit-daemon11:43:220
179699560,4rtkit-daemon1795-21rtkit-daemon10:07:531
179699530,4rtkit-daemon1795-21rtkit-daemon11:00:131
179699510,4rtkit-daemon1795-21rtkit-daemon11:24:211
179699510,4rtkit-daemon1795-21rtkit-daemon07:20:560
179699500,3rtkit-daemon1795-21rtkit-daemon09:46:001
34202402480,4sleep13420244-21gltestperf10:35:191
33756232450,4sleep10-21swapper/109:34:551
179699390,3rtkit-daemon0-21swapper/110:03:141
179699390,3rtkit-daemon0-21swapper/008:24:490
179699380,3rtkit-daemon0-21swapper/010:13:370
179699370,5rtkit-daemon1795-21rtkit-daemon10:25:490
179699370,3rtkit-daemon0-21swapper/012:10:030
179699370,3rtkit-daemon0-21swapper/008:01:130
33515292360,2sleep00-21swapper/008:55:190
179699360,3rtkit-daemon0-21swapper/007:18:290
179699350,4rtkit-daemon1795-21rtkit-daemon09:17:111
179699350,4rtkit-daemon1795-21rtkit-daemon09:12:381
179699350,4rtkit-daemon0-21swapper/008:25:170
179699350,3rtkit-daemon0-21swapper/111:01:390
179699350,3rtkit-daemon0-21swapper/109:48:000
179699340,4rtkit-daemon1795-21rtkit-daemon10:41:581
179699340,4rtkit-daemon1795-21rtkit-daemon09:50:321
179699340,4rtkit-daemon1795-21rtkit-daemon07:58:240
179699340,3rtkit-daemon1795-21rtkit-daemon12:29:461
179699340,3rtkit-daemon0-21swapper/008:15:470
179699330,4rtkit-daemon1795-21rtkit-daemon12:28:450
179699330,3rtkit-daemon0-21swapper/110:40:380
179699330,3rtkit-daemon0-21swapper/109:03:170
179699330,3rtkit-daemon0-21swapper/010:23:591
179699330,3rtkit-daemon0-21swapper/010:15:101
179699320,4rtkit-daemon1795-21rtkit-daemon12:33:431
179699320,4rtkit-daemon1795-21rtkit-daemon11:06:361
179699320,3rtkit-daemon1795-21rtkit-daemon08:41:350
179699320,3rtkit-daemon0-21swapper/109:08:240
179699320,3rtkit-daemon0-21swapper/012:07:341
330861199312,22cyclictest3350823-21apt-get08:55:111
3308611993116,11cyclictest26-21ksoftirqd/111:35:021
179699310,3rtkit-daemon1795-21rtkit-daemon09:08:171
179699310,3rtkit-daemon1795-21rtkit-daemon09:04:511
179699310,3rtkit-daemon0-21swapper/012:03:111
179699310,3rtkit-daemon0-21swapper/008:06:471
3308611993028,1cyclictest0-21swapper/108:44:591
179699300,4rtkit-daemon1795-21rtkit-daemon11:23:220
179699300,3rtkit-daemon1795-21rtkit-daemon09:38:070
179699300,3rtkit-daemon0-21swapper/112:16:440
179699300,3rtkit-daemon0-21swapper/108:51:520
179699300,3rtkit-daemon0-21swapper/009:22:571
179699290,4rtkit-daemon1795-21rtkit-daemon10:45:320
179699290,3rtkit-daemon0-21swapper/007:22:211
179699280,3rtkit-daemon0-21swapper/109:52:400
179699280,3rtkit-daemon0-21swapper/011:44:171
179699280,3rtkit-daemon0-21swapper/011:34:021
179699280,3rtkit-daemon0-21swapper/010:34:151
179699280,3rtkit-daemon0-21swapper/008:34:071
179699280,24rtkit-daemon3310658-21munin-node07:50:161
330861199275,8cyclictest850-21runrttasks11:10:311
3308611992724,2cyclictest18150irq/39-mmc012:20:261
3308611992713,12cyclictest26-21ksoftirqd/110:00:011
179699270,3rtkit-daemon1795-21rtkit-daemon07:28:170
179699270,3rtkit-daemon0-21swapper/008:27:091
179699270,3rtkit-daemon0-21swapper/008:24:001
179699270,22rtkit-daemon3492941-21apt-get12:15:121
3308611992613,11cyclictest26-21ksoftirqd/108:15:231
330861199260,6cyclictest0-21swapper/111:58:261
330861199260,5cyclictest0-21swapper/107:46:281
330860699260,9cyclictest3478369-21ssh11:55:010
179699260,1rtkit-daemon1795-21rtkit-daemon11:16:111
179699260,1rtkit-daemon1795-21rtkit-daemon10:53:090
179699260,16rtkit-daemon3356528-21diskmemload12:03:030
330861199250,6cyclictest0-21swapper/108:36:471
330860699259,10cyclictest3366542-1kworker/u9:010:00:130
330860699259,10cyclictest3341059-21apt-get08:30:140
330860699252,18cyclictest3343008-21apt-get08:35:100
3308606992512,8cyclictest3462952-1kworker/u9:011:35:140
179699250,1rtkit-daemon1795-21rtkit-daemon07:25:211
34518862240,9sleep00-21swapper/011:18:590
3308611992421,2cyclictest66950irq/132-enp2s008:13:121
3308611992411,7cyclictest3474771-21apt-get11:50:121
330860699243,12cyclictest3317539-21apt-get07:30:140
330860699242,15cyclictest3416205-21apt-get10:30:120
330860699242,15cyclictest3367996-21apt-get09:25:130
330860699242,15cyclictest3333237-21apt-get08:10:150
330860699242,15cyclictest3308731-21apt-get07:10:130
179699240,1rtkit-daemon1795-21rtkit-daemon10:48:211
179699240,1rtkit-daemon1795-21rtkit-daemon09:44:451
179699240,16rtkit-daemon3436028-21ssh10:56:201
330861199238,5cyclictest0-21swapper/112:12:381
3308611992310,11cyclictest26-21ksoftirqd/107:55:221
330861199230,6cyclictest3414403-21ssh10:26:181
330860699233,13cyclictest3325416-21apt-get07:50:120
330860699232,15cyclictest3503800-21apt-get12:30:110
330860699232,15cyclictest3323466-21apt-get07:45:130
330860699232,14cyclictest3409043-21apt-get10:20:140
330860699231,8cyclictest3507750-21grep12:35:170
330860699230,9cyclictest3398388-21df10:05:150
179699230,1rtkit-daemon1795-21rtkit-daemon10:37:080
330861199229,11cyclictest26-21ksoftirqd/107:40:221
330861199229,11cyclictest26-21ksoftirqd/107:40:221
330861199224,16cyclictest3310614-21cat07:15:011
330860699228,9cyclictest3366542-1kworker/u9:009:30:140
330860699223,12cyclictest3445428-21apt-get11:10:130
330860699223,11cyclictest3356783-21apt-get09:10:130
330860699222,8cyclictest3471159-21apt-get11:45:120
330860699222,14cyclictest3496606-21apt-get12:20:150
330861199215,15cyclictest0-21swapper/110:50:201
330861199213,11cyclictest3456278-21apt-get11:25:121
330861199213,11cyclictest3319490-21apt-get07:35:141
330861199212,15cyclictest3375951-21apt-get09:35:141
330860699218,2cyclictest141rcu_preempt09:21:540
330860699214,9cyclictest3459906-21apt-get11:30:130
330860699211,7cyclictest3323256-21cron07:45:000
330860699211,7cyclictest3323256-21cron07:45:000
3308606992114,5cyclictest3332205-21cut08:05:240
3308606992111,8cyclictest3379606-21sort09:40:110
330860699210,6cyclictest0-21swapper/009:19:400
179699210,14rtkit-daemon0-21swapper/011:50:390
330861199203,10cyclictest3346931-21apt-get08:45:161
3308611992012,6cyclictest3471976-21ntp_states11:45:201
3308611992011,7cyclictest3330088-21ntpq08:00:201
330861199200,18cyclictest3401901-21tr10:10:131
330861199200,18cyclictest3371610-21gpg-connect-age09:30:011
330860699200,18cyclictest3408757-21cron10:20:010
3308611991914,3cyclictest0-21swapper/112:35:171
330861199191,12cyclictest3312025-21ntp_states07:15:201
330860699199,8cyclictest3348063-21sed08:45:270
3308606991912,5cyclictest3444659-21seq11:09:500
179699190,11rtkit-daemon0-21swapper/012:07:060
330860699182,11cyclictest3319490-21apt-get07:35:120
3308606991813,3cyclictest3459124-21sh11:28:450
3308606991813,3cyclictest3390530-21cpuspeed09:55:120
330861199179,6cyclictest3350002-21expr08:50:241
330861199172,13cyclictest3317907-21grep07:30:181
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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