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2025-07-01 - 04:45
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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 20 highest latencies:
System rack0slot7.osadl.org (updated Tue Jul 01, 2025 00:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159977599284279,4cyclictest11739-21Renderer00:35:032
159976799258256,1cyclictest0-21swapper/300:32:179
159977199245240,4cyclictest11739-21Renderer00:35:2513
159976699178176,2cyclictest0-21swapper/200:35:028
159977999152148,3cyclictest11739-21Renderer00:32:173
15989182137110,25sleep140-21swapper/1419:07:176
15989182137110,25sleep140-21swapper/1419:07:176
15988922131101,28sleep150-21swapper/1519:07:027
15988922131101,28sleep150-21swapper/1519:07:017
15992572119117,1sleep80-21swapper/819:09:5114
15992572119117,1sleep80-21swapper/819:09:5114
15991232116114,1sleep110-21swapper/1119:08:503
15991232116114,1sleep110-21swapper/1119:08:493
15990582116114,1sleep10-21swapper/119:08:241
15990582116114,1sleep10-21swapper/119:08:241
15989012114111,1sleep20-21swapper/219:07:058
15989012114111,1sleep20-21swapper/219:07:058
15987412113110,1sleep70-21swapper/719:05:4913
15987412113110,1sleep70-21swapper/719:05:4813
15987382113111,1sleep60-21swapper/619:05:4812
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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