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2026-08-08 - 13:24
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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 Aug 08, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146802196180,11sleep10-21swapper/119:09:081
145342184167,12sleep00-21swapper/019:07:140
145322184167,12sleep30-21swapper/319:07:123
144452181163,13sleep20-21swapper/219:06:082
53602450,0sleep10-21swapper/122:28:281
244892450,0sleep20-21swapper/222:21:212
16455290,0sleep10-21swapper/123:22:571
149669970,3cyclictest29562-21apt-get23:30:000
149969960,6cyclictest0-21swapper/319:55:113
149969960,5cyclictest0-21swapper/320:55:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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