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2024-03-01 - 19:28
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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 rack8slot4.osadl.org (updated Fri Mar 01, 2024 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27678982239181,46sleep60-21swapper/607:09:236
27678582219188,20sleep40-21swapper/407:08:484
27678972218188,19sleep50-21swapper/507:09:225
27677352215184,20sleep30-21swapper/307:07:013
27676922213185,17sleep70-21swapper/707:06:267
27677342211184,17sleep20-21swapper/207:07:002
27677982208179,18sleep10-21swapper/107:07:561
27677432208179,18sleep00-21swapper/007:07:080
276814199500,49cyclictest0-21swapper/512:07:335
2768146993129,1cyclictest2858761-21apt-get09:50:407
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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