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2026-07-11 - 05:35
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot2.osadl.org (updated Sat Jul 11, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67332199184,11sleep10-21swapper/119:07:551
66402194177,12sleep00-21swapper/019:06:420
68232183167,11sleep30-21swapper/319:09:063
66152173155,13sleep20-21swapper/219:06:242
280102490,1sleep0706899cyclictest21:21:570
78052430,0sleep10-21swapper/120:15:001
241212430,0sleep30-21swapper/300:33:253
205362150,0sleep00-21swapper/019:35:120
70719991,6cyclictest0-21swapper/223:00:122
70719991,6cyclictest0-21swapper/220:40:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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