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2025-12-16 - 08:07
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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 Tue Dec 16, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24843682265182,19sleep00-21swapper/019:05:450
24844262251212,25sleep10-21swapper/119:06:221
179699640,3rtkit-daemon1795-21rtkit-daemon21:00:100
179699550,3rtkit-daemon1795-21rtkit-daemon23:15:261
179699540,4rtkit-daemon1795-21rtkit-daemon22:53:310
179699530,4rtkit-daemon1795-21rtkit-daemon00:14:030
179699500,3rtkit-daemon1795-21rtkit-daemon21:48:170
179699490,4rtkit-daemon1795-21rtkit-daemon22:39:360
179699480,3rtkit-daemon1795-21rtkit-daemon21:11:351
179699460,3rtkit-daemon1795-21rtkit-daemon20:43:320
179699460,3rtkit-daemon1795-21rtkit-daemon00:17:160
179699440,4rtkit-daemon1795-21rtkit-daemon23:29:160
179699410,5rtkit-daemon2527544-21memory20:55:201
25133852400,3sleep02513379-21sort20:20:150
179699380,5rtkit-daemon2493028-21chrt19:28:241
179699380,3rtkit-daemon0-21swapper/123:40:201
179699370,5rtkit-daemon1795-21rtkit-daemon19:25:160
179699370,4rtkit-daemon0-21swapper/019:15:031
179699360,3rtkit-daemon0-21swapper/120:35:311
179699360,3rtkit-daemon0-21swapper/019:40:181
179699360,3rtkit-daemon0-21swapper/000:32:451
179699350,3rtkit-daemon0-21swapper/123:31:121
179699350,3rtkit-daemon0-21swapper/120:15:400
179699340,4rtkit-daemon1795-21rtkit-daemon23:38:241
179699340,4rtkit-daemon1795-21rtkit-daemon22:24:330
179699340,3rtkit-daemon0-21swapper/120:29:371
179699340,3rtkit-daemon0-21swapper/120:29:371
179699340,3rtkit-daemon0-21swapper/023:09:460
179699340,3rtkit-daemon0-21swapper/022:15:301
179699330,4rtkit-daemon1795-21rtkit-daemon00:28:160
179699330,3rtkit-daemon1795-21rtkit-daemon23:00:470
179699330,3rtkit-daemon1795-21rtkit-daemon19:54:390
179699330,3rtkit-daemon1795-21rtkit-daemon19:12:150
179699330,3rtkit-daemon0-21swapper/121:27:350
179699330,3rtkit-daemon0-21swapper/100:01:240
179699330,3rtkit-daemon0-21swapper/020:45:100
179699320,4rtkit-daemon1795-21rtkit-daemon23:22:440
179699320,4rtkit-daemon1795-21rtkit-daemon22:14:490
179699320,3rtkit-daemon1795-21rtkit-daemon20:54:291
179699320,3rtkit-daemon1795-21rtkit-daemon20:07:481
179699320,3rtkit-daemon0-21swapper/123:59:430
179699320,3rtkit-daemon0-21swapper/123:54:210
179699320,3rtkit-daemon0-21swapper/022:58:161
179699320,3rtkit-daemon0-21swapper/019:59:451
179699310,3rtkit-daemon0-21swapper/122:45:580
179699310,3rtkit-daemon0-21swapper/022:25:211
179699310,3rtkit-daemon0-21swapper/020:02:021
179699300,4rtkit-daemon0-21swapper/022:41:111
179699300,3rtkit-daemon1795-21rtkit-daemon20:55:330
179699300,3rtkit-daemon1795-21rtkit-daemon00:09:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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