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2026-04-03 - 06:22
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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 Fri Apr 03, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27093892275193,28sleep00-21swapper/019:07:200
27078792249178,20sleep10-21swapper/119:05:051
179699640,3rtkit-daemon1795-21rtkit-daemon21:45:021
179699560,4rtkit-daemon1795-21rtkit-daemon22:36:110
179699560,3rtkit-daemon1795-21rtkit-daemon23:11:110
179699550,4rtkit-daemon1795-21rtkit-daemon22:59:381
179699470,3rtkit-daemon1795-21rtkit-daemon20:22:471
28194672460,4sleep12819463-21ssh22:35:231
179699420,3rtkit-daemon1795-21rtkit-daemon23:42:440
179699410,5rtkit-daemon0-21swapper/022:31:130
28317062390,4sleep00-21swapper/022:53:350
179699380,3rtkit-daemon0-21swapper/022:22:060
270975999370,14cyclictest28544042cut23:25:180
179699360,5rtkit-daemon2865073-21memory23:40:211
179699360,3rtkit-daemon0-21swapper/123:48:020
179699360,3rtkit-daemon0-21swapper/122:29:160
179699360,3rtkit-daemon0-21swapper/020:01:230
179699360,3rtkit-daemon0-21swapper/000:12:060
179699350,4rtkit-daemon1795-21rtkit-daemon23:09:570
179699350,3rtkit-daemon0-21swapper/122:24:031
179699350,3rtkit-daemon0-21swapper/121:45:450
179699350,3rtkit-daemon0-21swapper/100:30:250
179699350,3rtkit-daemon0-21swapper/022:15:251
179699350,3rtkit-daemon0-21swapper/020:48:220
179699350,3rtkit-daemon0-21swapper/000:21:371
179699340,5rtkit-daemon2728082-21seq19:53:051
179699340,4rtkit-daemon1795-21rtkit-daemon20:32:220
179699340,4rtkit-daemon1795-21rtkit-daemon20:32:220
179699340,4rtkit-daemon1795-21rtkit-daemon20:06:380
179699340,4rtkit-daemon1795-21rtkit-daemon00:39:550
179699340,4rtkit-daemon1795-21rtkit-daemon00:18:260
179699340,3rtkit-daemon0-21swapper/122:40:381
179699340,3rtkit-daemon0-21swapper/022:06:440
179699340,3rtkit-daemon0-21swapper/021:15:171
179699340,3rtkit-daemon0-21swapper/019:56:200
179699340,3rtkit-daemon0-21swapper/019:48:160
179699340,3rtkit-daemon0-21swapper/000:18:131
179699330,4rtkit-daemon1795-21rtkit-daemon23:31:320
179699330,4rtkit-daemon1795-21rtkit-daemon23:17:030
179699330,3rtkit-daemon1795-21rtkit-daemon21:40:490
179699330,3rtkit-daemon0-21swapper/120:13:050
179699330,3rtkit-daemon0-21swapper/119:17:220
179699330,3rtkit-daemon0-21swapper/022:50:301
179699330,3rtkit-daemon0-21swapper/020:38:371
179699330,3rtkit-daemon0-21swapper/000:10:411
27556592320,10sleep12755771-21latency_hist21:05:001
2709761993228,3cyclictest2742439-1kworker/1:1H20:55:011
179699320,4rtkit-daemon1795-21rtkit-daemon00:02:430
179699320,4rtkit-daemon0-21swapper/021:22:401
179699320,3rtkit-daemon1795-21rtkit-daemon22:04:000
179699320,3rtkit-daemon1795-21rtkit-daemon21:57:051
179699320,3rtkit-daemon0-21swapper/123:53:430
179699320,3rtkit-daemon0-21swapper/100:27:220
179699320,3rtkit-daemon0-21swapper/023:52:431
179699320,3rtkit-daemon0-21swapper/023:16:151
179699320,3rtkit-daemon0-21swapper/022:14:511
179699320,3rtkit-daemon0-21swapper/020:02:551
179699320,3rtkit-daemon0-21swapper/000:06:551
179699310,4rtkit-daemon1795-21rtkit-daemon21:36:240
179699310,3rtkit-daemon1795-21rtkit-daemon21:42:371
179699310,3rtkit-daemon0-21swapper/120:21:340
179699310,3rtkit-daemon0-21swapper/023:09:291
2709761993011,12cyclictest2836135-21apt-get23:00:111
179699300,4rtkit-daemon1795-21rtkit-daemon21:10:490
179699300,4rtkit-daemon0-21swapper/022:00:051
179699300,3rtkit-daemon1795-21rtkit-daemon20:40:160
179699300,3rtkit-daemon0-21swapper/023:25:231
179699300,3rtkit-daemon0-21swapper/022:08:041
179699300,3rtkit-daemon0-21swapper/021:08:041
179699300,3rtkit-daemon0-21swapper/020:31:381
179699300,3rtkit-daemon0-21swapper/020:31:371
179699290,4rtkit-daemon1795-21rtkit-daemon00:23:340
179699290,3rtkit-daemon1795-21rtkit-daemon21:21:590
179699290,3rtkit-daemon0-21swapper/123:36:020
179699290,3rtkit-daemon0-21swapper/122:43:550
179699290,3rtkit-daemon0-21swapper/121:02:180
179699290,3rtkit-daemon0-21swapper/119:36:030
179699290,3rtkit-daemon0-21swapper/119:14:540
179699290,3rtkit-daemon0-21swapper/020:42:381
179699290,26rtkit-daemon1795-21rtkit-daemon21:25:121
2709761992811,10cyclictest2850096-21apt-get23:20:141
2709759992821,3cyclictest2683853-1kworker/0:0H21:25:150
179699280,3rtkit-daemon0-21swapper/121:54:280
179699280,3rtkit-daemon0-21swapper/120:58:500
179699280,3rtkit-daemon0-21swapper/020:48:061
179699280,3rtkit-daemon0-21swapper/019:55:191
179699280,23rtkit-daemon2709752-21cyclictest00:37:151
270976199271,21cyclictest26-21ksoftirqd/120:55:121
270976199263,17cyclictest2736312-21apt-get20:15:131
270976199257,16cyclictest2736146-21latency_hist20:15:011
270976199250,6cyclictest0-21swapper/123:31:551
179699250,1rtkit-daemon1795-21rtkit-daemon23:04:320
179699250,1rtkit-daemon1795-21rtkit-daemon21:18:450
270976199242,15cyclictest2878662-21apt-get00:00:131
270976199242,15cyclictest2757902-21apt-get21:10:151
270976199241,18cyclictest2859052-21kworker/u8:123:35:131
270976199240,6cyclictest0-21swapper/123:45:091
270976199240,6cyclictest0-21swapper/119:35:471
270976199240,6cyclictest0-21swapper/100:30:431
270975999242,15cyclictest2804567-21apt-get22:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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