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2026-01-02 - 13:09
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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 50 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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