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2026-06-10 - 05:46
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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 10 highest latencies:
System rack3slot0.osadl.org (updated Wed Jun 10, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134982820,2sleep61307399cyclictest00:28:386
266922710,1sleep341-21ksoftirqd/321:33:513
23192710,1sleep11304099cyclictest23:03:591
186572550,0sleep60-21swapper/622:00:136
278982500,0sleep30-21swapper/300:23:473
188142490,0sleep60-21swapper/621:44:596
315512480,0sleep00-21swapper/022:56:210
173272480,2sleep31304699cyclictest21:21:493
109052480,2sleep41305499cyclictest23:29:334
94822470,0sleep40-21swapper/423:48:324
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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