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2026-05-03 - 08:09
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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 20 highest latencies:
System rackcslot4.osadl.org (updated Sun May 03, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5550932272232,26sleep00-21swapper/019:06:170
5552192266188,25sleep10-21swapper/119:07:391
7545682770,5chrt0-21swapper/000:28:380
179699660,3rtkit-daemon1795-21rtkit-daemon21:25:151
179699620,4rtkit-daemon1795-21rtkit-daemon21:10:081
179699620,3rtkit-daemon1795-21rtkit-daemon23:03:411
179699590,3rtkit-daemon1795-21rtkit-daemon21:40:231
179699520,4rtkit-daemon1795-21rtkit-daemon21:22:191
179699510,3rtkit-daemon0-21swapper/000:06:450
179699500,1rtkit-daemon1795-21rtkit-daemon21:00:010
179699480,3rtkit-daemon1795-21rtkit-daemon22:30:260
179699480,3rtkit-daemon0-21swapper/022:37:220
179699470,5rtkit-daemon1795-21rtkit-daemon21:31:541
179699470,3rtkit-daemon1795-21rtkit-daemon20:53:571
179699470,3rtkit-daemon0-21swapper/119:35:301
179699460,3rtkit-daemon0-21swapper/119:42:341
179699460,3rtkit-daemon0-21swapper/119:42:331
179699460,3rtkit-daemon0-21swapper/022:50:141
179699460,1rtkit-daemon1795-21rtkit-daemon21:46:010
179699450,3rtkit-daemon0-21swapper/023:09:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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