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2026-05-26 - 10:14
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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 rack1slot8.osadl.org (updated Tue May 26, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236509918161731,78cyclictest0-21swapper/019:10:040
2365199488445,29cyclictest0-21swapper/119:10:041
2365099451387,52cyclictest0-21swapper/019:35:030
2365199360294,50cyclictest0-21swapper/119:35:031
231822184160,16sleep10-21swapper/119:05:381
235342172151,15sleep00-21swapper/019:09:130
236509910175,20cyclictest0-21swapper/020:26:000
23650999429,58cyclictest0-21swapper/000:29:000
23651999214,61cyclictest0-21swapper/123:49:591
228699920,4rtkit-daemon2285-21rtkit-daemon22:04:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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