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2026-03-22 - 09:29
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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 Sun Mar 22, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312521090,0sleep4471rcuc/400:26:094
276112850,2sleep41144099cyclictest23:18:094
15052810,0sleep60-21swapper/621:15:416
130332730,2sleep71145799cyclictest21:38:337
286212700,2sleep51144799cyclictest00:06:565
317222550,1sleep01142499cyclictest00:16:360
84392540,0sleep00-21swapper/000:17:000
209632530,0sleep10-21swapper/121:06:551
273572510,1sleep127353-21bash22:16:391
266252500,1sleep7686-21dbus-daemon22:42:407
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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