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2026-04-07 - 04:12
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Tue Apr 07, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32446502284216,53sleep00-21swapper/019:09:310
32443802258194,50sleep10-21swapper/119:06:391
330843021710,4sleep03308413-21munin-run21:30:010
33265362760,4chrt0-21swapper/021:54:530
179699680,3rtkit-daemon1795-21rtkit-daemon23:10:530
33535632560,2sleep10-21swapper/122:33:051
179699520,3rtkit-daemon0-21swapper/123:40:411
179699510,4rtkit-daemon1795-21rtkit-daemon23:21:011
179699510,4rtkit-daemon1795-21rtkit-daemon23:21:001
179699510,4rtkit-daemon1795-21rtkit-daemon22:57:250
33409662500,7sleep10-21swapper/122:15:131
34071472490,10sleep126-21ksoftirqd/123:49:071
33010012480,2sleep00-21swapper/021:19:070
33967002470,4sleep126-21ksoftirqd/123:33:581
32475792450,4sleep10-21swapper/119:15:141
179699450,10rtkit-daemon1795-21rtkit-daemon00:19:110
179699430,7rtkit-daemon3412470-21ssh23:55:291
33613072390,1sleep10-21swapper/122:44:391
179699390,3rtkit-daemon0-21swapper/021:14:520
179699370,6rtkit-daemon3274791-21/usr/sbin/munin20:20:240
179699370,5rtkit-daemon3436293-21find00:30:220
179699370,4rtkit-daemon1795-21rtkit-daemon22:19:090
179699370,3rtkit-daemon0-21swapper/100:21:280
179699370,3rtkit-daemon0-21swapper/022:07:451
179699360,4rtkit-daemon1795-21rtkit-daemon00:28:290
179699360,3rtkit-daemon0-21swapper/122:36:001
179699360,3rtkit-daemon0-21swapper/100:06:091
179699350,4rtkit-daemon1795-21rtkit-daemon22:11:160
179699350,4rtkit-daemon1795-21rtkit-daemon21:44:141
179699350,4rtkit-daemon1795-21rtkit-daemon00:02:491
179699350,3rtkit-daemon0-21swapper/120:55:440
179699350,3rtkit-daemon0-21swapper/120:33:420
179699340,4rtkit-daemon1795-21rtkit-daemon22:44:380
179699340,4rtkit-daemon1795-21rtkit-daemon19:12:370
179699340,3rtkit-daemon0-21swapper/123:40:560
179699340,3rtkit-daemon0-21swapper/122:04:200
179699340,3rtkit-daemon0-21swapper/121:49:470
179699340,3rtkit-daemon0-21swapper/121:42:490
179699340,3rtkit-daemon0-21swapper/100:11:440
179699330,4rtkit-daemon0-21swapper/022:12:221
179699330,3rtkit-daemon1795-21rtkit-daemon19:23:230
179699330,3rtkit-daemon1795-21rtkit-daemon00:24:321
179699330,3rtkit-daemon1795-21rtkit-daemon00:18:521
179699330,3rtkit-daemon0-21swapper/123:38:080
179699330,3rtkit-daemon0-21swapper/123:31:140
179699330,3rtkit-daemon0-21swapper/121:58:480
179699330,3rtkit-daemon0-21swapper/121:06:430
179699330,3rtkit-daemon0-21swapper/120:11:080
3244823993215,11cyclictest3267973-21apt-get20:05:140
179699320,4rtkit-daemon1795-21rtkit-daemon23:14:281
179699320,4rtkit-daemon1795-21rtkit-daemon19:18:280
179699320,3rtkit-daemon1795-21rtkit-daemon20:44:061
179699320,3rtkit-daemon1795-21rtkit-daemon19:45:240
179699320,3rtkit-daemon0-21swapper/123:15:460
179699320,3rtkit-daemon0-21swapper/121:35:150
179699320,3rtkit-daemon0-21swapper/121:34:240
179699320,3rtkit-daemon0-21swapper/121:01:390
179699320,3rtkit-daemon0-21swapper/021:33:531
179699320,3rtkit-daemon0-21swapper/019:41:111
179699320,3rtkit-daemon0-21swapper/019:12:301
179699320,3rtkit-daemon0-21swapper/000:28:571
32881422310,6chrt3288137-21perf20:55:001
179699310,4rtkit-daemon1795-21rtkit-daemon20:33:351
179699310,3rtkit-daemon1795-21rtkit-daemon23:53:571
179699310,3rtkit-daemon1795-21rtkit-daemon20:19:091
179699310,3rtkit-daemon0-21swapper/023:00:041
179699310,3rtkit-daemon0-21swapper/022:28:541
34082992300,5chrt0-21swapper/023:50:180
179699300,3rtkit-daemon0-21swapper/122:35:450
179699300,3rtkit-daemon0-21swapper/120:42:580
179699290,4rtkit-daemon0-21swapper/100:37:350
179699290,3rtkit-daemon1795-21rtkit-daemon00:12:171
179699290,3rtkit-daemon0-21swapper/119:55:100
179699290,3rtkit-daemon0-21swapper/021:17:121
179699290,2rtkit-daemon1795-21rtkit-daemon21:03:001
179699280,4rtkit-daemon1795-21rtkit-daemon20:27:190
179699280,3rtkit-daemon0-21swapper/021:26:491
179699280,3rtkit-daemon0-21swapper/019:20:161
3244828992724,2cyclictest66950irq/132-enp2s021:22:461
3244828992724,2cyclictest18150irq/39-mmc023:25:311
3244823992714,9cyclictest3418050-21apt-get00:05:140
179699270,1rtkit-daemon1795-21rtkit-daemon22:50:510
3244828992623,2cyclictest66950irq/132-enp2s021:11:421
324482899260,6cyclictest0-21swapper/120:08:581
3244823992611,10cyclictest3414506-21apt-get00:00:130
179699260,20rtkit-daemon3244818-21cyclictest20:37:491
324482899256,17cyclictest3257049-21cron19:39:591
324482899250,6cyclictest0-21swapper/123:16:411
324482399259,10cyclictest3321866-1kworker/u9:122:05:140
324482399257,11cyclictest3351252-21apt-get22:30:140
324482399252,14cyclictest3411087-21apt-get23:55:140
3244823992511,9cyclictest3286378-21apt-get20:50:130
324482399250,6cyclictest0-21swapper/022:46:100
179699250,1rtkit-daemon1795-21rtkit-daemon22:27:370
179699250,1rtkit-daemon1795-21rtkit-daemon21:38:281
179699250,1rtkit-daemon1795-21rtkit-daemon20:23:341
179699250,1rtkit-daemon1795-21rtkit-daemon19:54:411
3244828992417,4cyclictest3378932-21python323:10:021
3244828992410,9cyclictest3253359-21apt-get19:30:141
324482899240,7cyclictest3400520-21sendmail-msp23:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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