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2024-04-25 - 09:32
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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 Thu Apr 25, 2024 00:50:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3091028449,30sleep10-21swapper/119:07:351
3099528248,29sleep30-21swapper/319:08:483
3089828146,30sleep70-21swapper/719:07:247
3104128045,30sleep20-21swapper/219:09:272
3106427945,30sleep60-21swapper/619:09:476
3092227842,31sleep40-21swapper/419:07:454
3084627843,30sleep50-21swapper/519:06:425
3096527541,30sleep00-21swapper/019:08:210
305872440,0sleep30-21swapper/300:30:093
72242430,0sleep50-21swapper/523:58:015
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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