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2026-06-10 - 01:52
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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 rack3slot6.osadl.org (updated Wed Jun 10, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29145997739,26cyclictest16402-21apt-get00:35:101
29141997728,44cyclictest0-21swapper/000:25:140
2812427625,41sleep10-21swapper/119:05:261
29145997538,23cyclictest29220-21apt-get19:10:111
29141997532,38cyclictest562-21runrttasks19:40:120
29145997432,27cyclictest12844-21apt-get22:55:141
29145997344,16cyclictest31478-21apt-get19:15:131
29145997340,22cyclictest16597-21apt-get21:35:131
29141997240,24cyclictest4591-21apt-get19:30:220
2862627233,25sleep00-21swapper/019:06:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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