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2026-01-02 - 08:57
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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 Jan 02, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23227852273206,52sleep00-21swapper/019:05:310
23242182248178,54sleep10-21swapper/119:07:051
245519421450,3sleep00-21swapper/022:54:420
244830121030,1sleep12448305-21gltestperf22:45:181
179699630,6rtkit-daemon2475287-21apt-get23:20:131
179699630,6rtkit-daemon2326499-21sh19:15:001
24771262610,4sleep00-21swapper/023:21:270
179699580,3rtkit-daemon0-21swapper/123:02:071
179699580,1rtkit-daemon1795-21rtkit-daemon19:25:121
179699570,5rtkit-daemon2358554-21chrt20:31:471
179699570,3rtkit-daemon0-21swapper/119:21:141
179699560,3rtkit-daemon0-21swapper/119:55:111
179699560,3rtkit-daemon0-21swapper/100:11:301
179699550,3rtkit-daemon0-21swapper/122:56:021
179699540,4rtkit-daemon1795-21rtkit-daemon23:31:331
179699540,4rtkit-daemon1795-21rtkit-daemon21:24:501
179699540,4rtkit-daemon0-21swapper/119:36:171
179699540,3rtkit-daemon0-21swapper/120:07:101
179699540,3rtkit-daemon0-21swapper/120:00:321
179699540,3rtkit-daemon0-21swapper/119:50:121
179699540,19rtkit-daemon1795-21rtkit-daemon22:10:131
24411302530,5sleep10-21swapper/122:35:261
179699530,3rtkit-daemon0-21swapper/123:18:111
179699530,3rtkit-daemon0-21swapper/123:05:061
179699530,3rtkit-daemon0-21swapper/100:20:571
179699520,4rtkit-daemon1795-21rtkit-daemon23:28:201
179699510,4rtkit-daemon1795-21rtkit-daemon23:51:411
179699510,4rtkit-daemon1795-21rtkit-daemon21:33:131
179699510,3rtkit-daemon1795-21rtkit-daemon00:27:451
179699510,3rtkit-daemon0-21swapper/120:10:211
179699500,4rtkit-daemon2513442-21ssh00:09:160
179699500,4rtkit-daemon1795-21rtkit-daemon20:55:461
179699490,4rtkit-daemon1795-21rtkit-daemon21:44:561
179699490,3rtkit-daemon1795-21rtkit-daemon00:26:340
179699490,3rtkit-daemon0-21swapper/100:08:121
179699480,4rtkit-daemon1795-21rtkit-daemon21:00:371
179699480,4rtkit-daemon1795-21rtkit-daemon19:33:021
179699480,3rtkit-daemon0-21swapper/100:31:031
179699480,2rtkit-daemon1795-21rtkit-daemon20:46:131
179699480,20rtkit-daemon2324611-21cyclictest19:43:351
179699470,4rtkit-daemon1795-21rtkit-daemon21:56:101
179699470,3rtkit-daemon1795-21rtkit-daemon20:51:081
179699470,2rtkit-daemon1795-21rtkit-daemon21:09:181
179699450,17rtkit-daemon1795-21rtkit-daemon20:17:071
179699420,3rtkit-daemon0-21swapper/100:15:000
179699420,14rtkit-daemon0-21swapper/021:26:041
179699390,3rtkit-daemon0-21swapper/122:13:350
179699390,3rtkit-daemon0-21swapper/119:15:141
179699380,11rtkit-daemon0-21swapper/021:17:431
232461999360,10cyclictest2392767-21apt-get21:35:130
179699360,3rtkit-daemon0-21swapper/120:15:420
179699350,3rtkit-daemon0-21swapper/122:39:160
179699350,3rtkit-daemon0-21swapper/122:26:540
179699350,3rtkit-daemon0-21swapper/120:09:460
179699340,4rtkit-daemon1795-21rtkit-daemon23:42:181
179699340,3rtkit-daemon0-21swapper/123:10:100
179699340,3rtkit-daemon0-21swapper/122:24:290
179699340,3rtkit-daemon0-21swapper/120:10:490
179699340,3rtkit-daemon0-21swapper/100:20:280
179699330,4rtkit-daemon1795-21rtkit-daemon22:08:530
179699330,4rtkit-daemon1795-21rtkit-daemon20:43:031
179699330,3rtkit-daemon0-21swapper/123:47:050
179699330,3rtkit-daemon0-21swapper/120:00:240
2324624993229,2cyclictest66950irq/132-enp2s022:07:421
179699320,4rtkit-daemon1795-21rtkit-daemon22:54:301
179699320,3rtkit-daemon0-21swapper/123:08:510
179699320,3rtkit-daemon0-21swapper/123:02:130
179699320,3rtkit-daemon0-21swapper/122:43:060
2324624993114,10cyclictest2494706-21apt-get23:45:151
179699310,3rtkit-daemon0-21swapper/119:55:330
179699310,3rtkit-daemon0-21swapper/119:38:580
179699310,3rtkit-daemon0-21swapper/119:20:400
179699310,3rtkit-daemon0-21swapper/119:19:190
232462499300,29cyclictest0-21swapper/123:10:281
179699300,3rtkit-daemon0-21swapper/123:17:420
179699300,3rtkit-daemon0-21swapper/122:02:520
179699300,3rtkit-daemon0-21swapper/120:38:320
179699300,3rtkit-daemon0-21swapper/119:43:280
179699300,3rtkit-daemon0-21swapper/100:18:010
179699290,3rtkit-daemon0-21swapper/123:26:050
179699290,3rtkit-daemon0-21swapper/122:46:300
232462499283,19cyclictest2517713-21apt-get00:15:131
2324624992825,2cyclictest66950irq/132-enp2s023:38:201
2324619992813,9cyclictest2388723-21apt-get21:30:120
2324619992812,10cyclictest2333145-21apt-get19:30:120
232461999280,8cyclictest2408148-21python321:55:010
2324624992712,10cyclictest2372856-21apt-get21:10:141
2324619992712,9cyclictest2400493-21apt-get21:45:140
179699270,3rtkit-daemon0-21swapper/123:42:540
179699270,3rtkit-daemon0-21swapper/100:37:061
232462499260,6cyclictest0-21swapper/121:37:361
2324619992511,10cyclictest2366889-21apt-get20:55:130
179699250,4rtkit-daemon1795-21rtkit-daemon22:18:030
179699250,3rtkit-daemon0-21swapper/122:56:530
2324624992412,7cyclictest66950irq/132-enp2s022:25:141
2324624992411,7cyclictest66950irq/132-enp2s023:55:161
2324624992410,9cyclictest2424619-21apt-get22:15:141
179699240,1rtkit-daemon1795-21rtkit-daemon21:55:060
179699240,1rtkit-daemon1795-21rtkit-daemon21:24:000
179699240,1rtkit-daemon1795-21rtkit-daemon21:16:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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