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2026-03-25 - 02:40
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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 Tue Mar 24, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11776092286224,48sleep10-21swapper/107:07:391
11774782240198,28sleep00-21swapper/007:06:140
179699660,4rtkit-daemon1795-21rtkit-daemon09:53:591
179699640,16rtkit-daemon0-21swapper/107:42:050
179699590,4rtkit-daemon1244532-21ssh09:35:130
179699590,3rtkit-daemon0-21swapper/008:20:230
179699570,4rtkit-daemon1795-21rtkit-daemon10:57:580
179699570,4rtkit-daemon1795-21rtkit-daemon07:56:390
179699560,3rtkit-daemon0-21swapper/008:13:240
179699550,4rtkit-daemon1795-21rtkit-daemon12:37:260
179699550,4rtkit-daemon1795-21rtkit-daemon11:58:120
179699550,4rtkit-daemon1795-21rtkit-daemon10:05:310
179699550,4rtkit-daemon1795-21rtkit-daemon08:30:140
179699540,4rtkit-daemon1795-21rtkit-daemon11:30:540
179699540,3rtkit-daemon0-21swapper/010:36:040
179699540,3rtkit-daemon0-21swapper/008:49:250
179699540,3rtkit-daemon0-21swapper/008:15:460
179699540,3rtkit-daemon0-21swapper/007:11:450
179699530,4rtkit-daemon1795-21rtkit-daemon08:04:540
179699520,3rtkit-daemon0-21swapper/012:11:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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