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2024-11-22 - 10:40
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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 rack0slot4.osadl.org (updated Fri Nov 22, 2024 00:46:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17753002359312,36sleep150-21swapper/1519:07:587
17752682358312,35sleep20-21swapper/219:07:298
17754032357313,14sleep60-21swapper/619:09:2512
17753902357310,15sleep100-21swapper/1019:09:132
17752862355332,12sleep10-21swapper/119:07:441
17753102352326,15sleep80-21swapper/819:08:0814
17751942351306,34sleep90-21swapper/919:06:3215
17753652345320,15sleep30-21swapper/319:08:519
17754452344319,15sleep40-21swapper/419:09:5610
17753912344319,15sleep110-21swapper/1119:09:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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