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2025-11-24 - 07:57
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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 Nov 24, 2025 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11932210132,56sleep10-21swapper/119:05:251
12991999522,17cyclictest0-21swapper/123:05:141
12991999417,18cyclictest0-21swapper/122:30:231
12991999416,18cyclictest0-21swapper/122:25:161
1195529331,51sleep00-21swapper/019:05:270
12991999215,18cyclictest0-21swapper/122:15:121
12991999215,16cyclictest0-21swapper/123:30:141
12991999212,71cyclictest0-21swapper/123:20:181
12991999210,33cyclictest553-21runrttasks22:10:141
12991999114,69cyclictest0-21swapper/119:35:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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