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2026-03-28 - 03:59
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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 Sat Mar 28, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192962260188,28sleep10-21swapper/119:09:211
174532254209,30sleep00-21swapper/019:05:020
179699580,5rtkit-daemon186678-21ssh23:56:230
179699560,3rtkit-daemon1795-21rtkit-daemon21:15:330
179699560,3rtkit-daemon0-21swapper/023:52:180
179699560,3rtkit-daemon0-21swapper/023:12:220
179699540,3rtkit-daemon0-21swapper/022:00:020
179699540,3rtkit-daemon0-21swapper/021:43:120
179699540,3rtkit-daemon0-21swapper/019:42:480
179699540,3rtkit-daemon0-21swapper/000:38:230
179699530,4rtkit-daemon194172-21ssh00:07:160
179699530,3rtkit-daemon1795-21rtkit-daemon23:31:450
179699530,3rtkit-daemon1795-21rtkit-daemon22:51:420
179699530,3rtkit-daemon0-21swapper/019:27:130
179699520,4rtkit-daemon1795-21rtkit-daemon23:19:000
179699520,3rtkit-daemon0-21swapper/019:51:140
179699520,3rtkit-daemon0-21swapper/000:18:450
179699510,3rtkit-daemon0-21swapper/022:23:400
179699510,23rtkit-daemon19521-21cyclictest00:30:130
179699510,21rtkit-daemon19521-21cyclictest22:42:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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