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2026-03-31 - 06:11
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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 Tue Mar 31, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
326162920,2sleep71688499cyclictest00:31:277
285742720,2sleep21684099cyclictest21:06:432
1644326230,18sleep70-21swapper/719:02:457
174482540,2sleep31684899cyclictest23:01:293
66892510,0sleep60-21swapper/623:50:576
79492500,0sleep60-21swapper/622:42:186
1668525027,8sleep00-21swapper/019:05:590
1662324825,9sleep60-21swapper/619:05:096
22842470,1sleep42287-21grep22:51:214
305652450,0sleep10-21swapper/121:55:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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