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2025-12-29 - 01:49
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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 rack3slot6.osadl.org (updated Mon Dec 29, 2025 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117002940,5sleep011702-21sh20:00:170
25954999319,17cyclictest0-21swapper/120:05:121
25954999317,17cyclictest0-21swapper/121:05:171
25954999219,16cyclictest0-21swapper/121:45:171
25954999215,18cyclictest0-21swapper/123:15:141
25954999214,18cyclictest0-21swapper/122:55:181
25954999121,16cyclictest0-21swapper/100:35:151
25954999116,16cyclictest0-21swapper/100:10:141
25954999114,18cyclictest0-21swapper/122:05:141
25954999018,17cyclictest0-21swapper/119:30:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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