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2026-04-19 - 17:35
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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 Sun Apr 19, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22226802266193,28sleep00-21swapper/007:07:160
22226902256184,56sleep10-21swapper/107:07:241
179699650,4rtkit-daemon1795-21rtkit-daemon10:02:320
23514582540,4sleep12351456-21ssh11:00:211
179699520,4rtkit-daemon1795-21rtkit-daemon11:17:111
179699520,4rtkit-daemon1795-21rtkit-daemon11:17:101
179699510,4rtkit-daemon1795-21rtkit-daemon09:44:410
179699500,4rtkit-daemon1795-21rtkit-daemon12:19:111
179699490,3rtkit-daemon1795-21rtkit-daemon07:49:001
23052952480,4sleep02305288-21gltestperf09:55:180
179699480,4rtkit-daemon1795-21rtkit-daemon08:11:250
179699470,4rtkit-daemon1795-21rtkit-daemon08:01:261
179699470,4rtkit-daemon1795-21rtkit-daemon07:20:350
179699460,4rtkit-daemon1795-21rtkit-daemon07:36:161
179699460,3rtkit-daemon1795-21rtkit-daemon07:32:431
222315299454,11cyclictest2350640-21apt-get11:00:130
179699390,3rtkit-daemon0-21swapper/111:49:021
179699370,3rtkit-daemon0-21swapper/112:35:421
179699370,3rtkit-daemon0-21swapper/111:31:251
179699370,3rtkit-daemon0-21swapper/010:45:511
179699370,3rtkit-daemon0-21swapper/010:32:141
179699360,5rtkit-daemon1795-21rtkit-daemon11:10:360
179699360,3rtkit-daemon0-21swapper/010:07:131
179699360,3rtkit-daemon0-21swapper/009:06:561
179699350,5rtkit-daemon2271898-21diskmemload10:55:330
179699350,4rtkit-daemon2303426-21ssh09:52:091
179699350,3rtkit-daemon0-21swapper/112:23:501
179699350,3rtkit-daemon0-21swapper/110:55:271
179699350,3rtkit-daemon0-21swapper/110:27:560
179699350,3rtkit-daemon0-21swapper/009:03:171
179699350,3rtkit-daemon0-21swapper/008:05:361
179699340,4rtkit-daemon1795-21rtkit-daemon10:18:311
179699340,3rtkit-daemon0-21swapper/107:55:540
179699340,3rtkit-daemon0-21swapper/011:13:551
179699340,3rtkit-daemon0-21swapper/008:59:381
179699330,4rtkit-daemon1795-21rtkit-daemon10:53:081
179699330,4rtkit-daemon1795-21rtkit-daemon07:29:080
179699330,3rtkit-daemon1795-21rtkit-daemon10:27:421
179699330,3rtkit-daemon0-21swapper/111:48:290
179699330,3rtkit-daemon0-21swapper/107:48:540
179699330,3rtkit-daemon0-21swapper/007:10:521
22891552320,13chrt26-21ksoftirqd/109:32:031
179699320,4rtkit-daemon1795-21rtkit-daemon10:07:070
179699320,4rtkit-daemon1795-21rtkit-daemon09:32:460
179699320,4rtkit-daemon1795-21rtkit-daemon07:14:330
179699320,3rtkit-daemon1795-21rtkit-daemon09:03:030
179699320,3rtkit-daemon1795-21rtkit-daemon08:18:350
179699320,3rtkit-daemon0-21swapper/111:16:560
179699320,3rtkit-daemon0-21swapper/111:16:560
179699320,3rtkit-daemon0-21swapper/110:54:150
179699320,3rtkit-daemon0-21swapper/110:12:430
179699320,3rtkit-daemon0-21swapper/012:09:201
179699320,3rtkit-daemon0-21swapper/009:39:421
179699320,2rtkit-daemon1795-21rtkit-daemon08:47:090
22362432310,5sleep10-21swapper/107:40:151
2223157993129,1cyclictest0-21swapper/109:55:361
179699310,4rtkit-daemon1795-21rtkit-daemon11:20:321
179699310,4rtkit-daemon1795-21rtkit-daemon11:05:300
179699310,4rtkit-daemon1795-21rtkit-daemon09:54:070
179699310,4rtkit-daemon1795-21rtkit-daemon08:59:320
179699310,4rtkit-daemon1795-21rtkit-daemon07:19:150
179699310,3rtkit-daemon1795-21rtkit-daemon09:39:350
179699310,3rtkit-daemon1795-21rtkit-daemon08:39:350
179699310,3rtkit-daemon1795-21rtkit-daemon08:32:100
179699310,3rtkit-daemon0-21swapper/107:36:590
179699310,3rtkit-daemon0-21swapper/007:23:491
179699300,4rtkit-daemon1795-21rtkit-daemon08:26:480
179699300,3rtkit-daemon1795-21rtkit-daemon12:27:281
179699300,3rtkit-daemon1795-21rtkit-daemon08:05:300
179699300,3rtkit-daemon0-21swapper/108:01:490
2223157992925,2cyclictest2227912-21chrt07:19:181
222315299290,9cyclictest23360572cut10:40:000
179699290,4rtkit-daemon2366563-21ssh11:21:120
179699290,3rtkit-daemon0-21swapper/112:16:140
179699290,3rtkit-daemon0-21swapper/110:17:250
179699290,3rtkit-daemon0-21swapper/107:32:370
179699290,3rtkit-daemon0-21swapper/010:36:161
179699290,3rtkit-daemon0-21swapper/008:32:181
179699280,3rtkit-daemon1795-21rtkit-daemon10:48:570
179699280,3rtkit-daemon0-21swapper/111:29:170
179699280,3rtkit-daemon0-21swapper/008:16:291
222315799271,6cyclictest2311397-21python310:05:011
2223157992711,11cyclictest2252558-21apt-get08:20:121
2223152992712,9cyclictest810213-1kworker/u9:009:15:130
179699270,3rtkit-daemon0-21swapper/008:46:081
179699270,22rtkit-daemon893-21snmpd08:40:081
2223157992620,4cyclictest66950irq/132-enp2s012:12:461
222315799260,6cyclictest0-21swapper/109:47:341
2223152992612,8cyclictest2399497-21apt-get12:10:130
23156862250,13sleep126-21ksoftirqd/110:10:141
2223157992522,2cyclictest18150irq/39-mmc008:10:061
222315799250,6cyclictest0-21swapper/111:57:161
222315299252,17cyclictest2322457-21apt-get10:20:140
222315299250,6cyclictest0-21swapper/012:08:100
179699250,1rtkit-daemon1795-21rtkit-daemon12:31:021
179699250,1rtkit-daemon1795-21rtkit-daemon09:21:010
2223157992421,1cyclictest0-21swapper/109:20:221
2223157992412,7cyclictest66950irq/132-enp2s011:50:131
222315299249,9cyclictest2384915-1kworker/u9:112:00:140
222315299242,16cyclictest2378551-21apt-get11:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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