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2024-04-26 - 13:42
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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 rack5slot3.osadl.org (updated Fri Apr 26, 2024 00:50:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2783129388,2sleep40-21swapper/419:05:134
3010328147,29sleep60-21swapper/619:09:326
3003728046,30sleep50-21swapper/519:08:345
3006227946,29sleep10-21swapper/119:08:551
2998827946,29sleep20-21swapper/219:07:512
3003927843,30sleep70-21swapper/719:08:377
3005027743,29sleep00-21swapper/019:08:460
2995027643,28sleep30-21swapper/319:07:193
55562510,0sleep30-21swapper/300:32:023
119122480,0sleep00-21swapper/022:07:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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