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2025-07-14 - 11:07
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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 Mon Jul 14, 2025 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59442204189,10sleep10-21swapper/119:09:361
56522190173,12sleep00-21swapper/019:05:500
37592187169,13sleep20-21swapper/219:05:072
37602185168,12sleep30-21swapper/319:05:083
180292150,0sleep10-21swapper/122:05:261
58102140,0sleep20-21swapper/223:37:272
61809990,7cyclictest0-21swapper/322:35:113
25048290,0sleep00-21swapper/023:47:060
30812280,0sleep10-21swapper/121:23:581
61649970,7cyclictest24659-21ssh22:09:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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