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2024-04-19 - 13:28
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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 rack4slot6.osadl.org (updated Fri Apr 19, 2024 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15938521130,109pltrace0-21swapper/519:05:185
15938521130,104pltrace0-21swapper/119:05:141
18728521110,103pltrace0-21swapper/219:08:532
15938521090,97pltrace0-21swapper/319:05:113
15938521030,94pltrace0-21swapper/719:05:227
18728521000,88pltrace0-21swapper/619:08:176
114492780,0sleep10-21swapper/119:50:171
1895326141,16sleep00-21swapper/019:09:230
1869925743,10sleep40-21swapper/419:06:054
784752310,4pltrace0-21swapper/720:45:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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