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2026-04-11 - 05:59
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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 Sat Apr 11, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37646232271195,43sleep00-21swapper/019:05:560
37648332265223,28sleep10-21swapper/119:08:111
394966821090,4sleep10-21swapper/100:23:201
37819332680,4sleep00-21swapper/019:50:110
179699620,5rtkit-daemon1795-21rtkit-daemon00:14:401
179699560,5rtkit-daemon1795-21rtkit-daemon00:01:261
38437072540,3sleep00-21swapper/021:50:210
179699540,3rtkit-daemon1795-21rtkit-daemon23:05:161
179699530,3rtkit-daemon1795-21rtkit-daemon21:28:370
179699510,4rtkit-daemon1795-21rtkit-daemon22:26:201
179699490,3rtkit-daemon1795-21rtkit-daemon22:36:501
179699480,3rtkit-daemon1795-21rtkit-daemon23:58:301
179699480,3rtkit-daemon1795-21rtkit-daemon21:53:301
179699470,3rtkit-daemon1795-21rtkit-daemon22:04:541
39418532450,2sleep00-21swapper/000:10:200
38716092450,2sleep03871603-21sort22:30:140
179699450,4rtkit-daemon1795-21rtkit-daemon23:41:160
179699450,3rtkit-daemon0-21swapper/019:32:470
179699430,3rtkit-daemon0-21swapper/122:40:570
179699430,3rtkit-daemon0-21swapper/121:14:370
179699430,3rtkit-daemon0-21swapper/023:34:570
179699420,3rtkit-daemon0-21swapper/023:27:160
179699420,3rtkit-daemon0-21swapper/020:39:170
179699410,3rtkit-daemon0-21swapper/121:58:320
179699410,3rtkit-daemon0-21swapper/020:52:060
179699410,3rtkit-daemon0-21swapper/020:12:120
179699410,3rtkit-daemon0-21swapper/019:21:010
179699400,4rtkit-daemon1795-21rtkit-daemon23:45:160
179699400,4rtkit-daemon1795-21rtkit-daemon20:06:120
179699400,3rtkit-daemon0-21swapper/122:48:440
179699400,3rtkit-daemon0-21swapper/122:38:420
179699400,3rtkit-daemon0-21swapper/122:03:200
179699400,3rtkit-daemon0-21swapper/100:02:450
179699390,3rtkit-daemon1795-21rtkit-daemon20:45:220
179699390,3rtkit-daemon0-21swapper/123:19:230
179699390,3rtkit-daemon0-21swapper/123:11:001
179699380,3rtkit-daemon1795-21rtkit-daemon20:44:320
179699370,3rtkit-daemon0-21swapper/121:18:391
179699370,3rtkit-daemon0-21swapper/100:15:451
179699360,4rtkit-daemon1795-21rtkit-daemon22:40:421
179699360,3rtkit-daemon0-21swapper/123:59:340
179699360,3rtkit-daemon0-21swapper/122:21:121
179699360,3rtkit-daemon0-21swapper/121:43:400
179699360,3rtkit-daemon0-21swapper/100:08:400
376513099352,27cyclictest3947051-21apt-get00:20:130
179699350,3rtkit-daemon0-21swapper/123:05:440
179699350,3rtkit-daemon0-21swapper/122:52:240
179699350,3rtkit-daemon0-21swapper/121:37:440
179699350,3rtkit-daemon0-21swapper/119:41:330
179699350,3rtkit-daemon0-21swapper/100:28:021
179699340,3rtkit-daemon1795-21rtkit-daemon23:48:081
179699340,3rtkit-daemon0-21swapper/120:23:451
179699340,3rtkit-daemon0-21swapper/120:21:240
179699340,10rtkit-daemon0-21swapper/023:40:441
179699330,3rtkit-daemon0-21swapper/122:07:521
179699320,4rtkit-daemon1795-21rtkit-daemon21:32:570
179699320,3rtkit-daemon1795-21rtkit-daemon22:50:291
179699320,3rtkit-daemon1795-21rtkit-daemon19:40:451
179699320,3rtkit-daemon0-21swapper/120:28:461
376513099311,15cyclictest3813842-21diskmemload23:13:080
179699310,2rtkit-daemon1795-21rtkit-daemon21:09:511
3765134993015,9cyclictest3769814-21apt-get19:20:111
376513499300,7cyclictest0-21swapper/121:32:571
376513099301,15cyclictest3813842-21diskmemload23:21:390
179699300,4rtkit-daemon1795-21rtkit-daemon20:56:381
376513099291,15cyclictest3813842-21diskmemload22:23:170
376513099291,14cyclictest3813842-21diskmemload23:53:570
3765134992825,2cyclictest66950irq/132-enp2s023:30:071
3765134992825,2cyclictest66950irq/132-enp2s023:25:581
3765134992823,3cyclictest66950irq/132-enp2s021:44:261
376513499280,6cyclictest0-21swapper/123:03:291
376513499280,6cyclictest0-21swapper/119:14:251
376513499270,6cyclictest0-21swapper/119:50:101
376513099279,8cyclictest13-21ksoftirqd/019:14:250
376513099277,8cyclictest13-21ksoftirqd/000:38:540
376513099271,8cyclictest3813842-21diskmemload22:25:170
376513099271,12cyclictest3813842-21diskmemload22:13:310
179699270,22rtkit-daemon890-21lldpd21:28:551
3765134992611,13cyclictest26-21ksoftirqd/123:00:001
3765134992611,10cyclictest3818094-21kworker/u8:221:45:131
376513499260,6cyclictest0-21swapper/121:35:551
376513499260,6cyclictest0-21swapper/100:38:541
376513099268,8cyclictest13-21ksoftirqd/023:03:290
376513099266,8cyclictest13-21ksoftirqd/021:15:310
376513099266,8cyclictest13-21ksoftirqd/020:32:380
376513099261,7cyclictest3813842-21diskmemload22:18:350
376513099261,7cyclictest3813842-21diskmemload00:25:510
179699260,1rtkit-daemon1795-21rtkit-daemon22:18:141
3765134992513,6cyclictest66950irq/132-enp2s020:00:141
376513499250,6cyclictest0-21swapper/120:32:391
376513099257,9cyclictest13-21ksoftirqd/022:08:590
376513099255,8cyclictest13-21ksoftirqd/019:15:170
376513099252,16cyclictest3792124-21apt-get20:15:130
376513099252,15cyclictest3917181-21apt-get23:35:110
376513099251,6cyclictest3813842-21diskmemload21:24:100
3765130992512,8cyclictest3908326-1kworker/u9:100:15:120
3765130992510,5cyclictest13-21ksoftirqd/019:37:070
179699250,1rtkit-daemon1795-21rtkit-daemon22:31:091
376513499246,12cyclictest3767843-21apt-get19:15:151
376513499242,15cyclictest3804276-21apt-get20:45:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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