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2023-12-09 - 10:22
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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 Dec 09, 2023 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36752202187,10sleep10-21swapper/119:07:391
37872193177,12sleep30-21swapper/319:09:063
37462185168,12sleep00-21swapper/019:08:350
37862177161,12sleep20-21swapper/219:09:052
235172520,1sleep023521-21cpuspeed21:25:180
15592450,0sleep30-21swapper/323:58:383
299352430,0sleep20-21swapper/223:35:152
220352430,0sleep222034-21cat20:50:012
404499113,4cyclictest29474-21munin-run23:35:010
40449981,3cyclictest27846-21munin-run23:55:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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