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2026-03-21 - 19:43
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rackbslot6.osadl.org (updated Sat Mar 21, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
461221670,4sleep11238899cyclictest13:20:381
1339621670,4sleep21239399cyclictest11:50:182
1068911190,8ptp4l9821-21kworker/3:008:02:243
106891730,1ptp4l401ktimersoftd/310:22:023
106891710,1ptp4l401ktimersoftd/313:32:223
106891680,1ptp4l401ktimersoftd/311:19:223
139422650,2sleep30-21swapper/308:05:123
34642640,2sleep20-21swapper/211:40:142
106891640,1ptp4l401ktimersoftd/312:25:583
106891640,1ptp4l401ktimersoftd/311:55:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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