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2025-04-02 - 08:27
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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 rack5slot3.osadl.org (updated Wed Apr 02, 2025 00:50:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3091729186,2sleep60-21swapper/619:05:156
3091729186,2sleep60-21swapper/619:05:156
30828450,29sleep30-21swapper/319:06:163
30828450,29sleep30-21swapper/319:06:163
57728248,30sleep50-21swapper/519:09:555
57728248,30sleep50-21swapper/519:09:555
40728146,30sleep40-21swapper/419:07:374
40728146,30sleep40-21swapper/419:07:374
3043828147,30sleep20-21swapper/219:05:032
3043828147,30sleep20-21swapper/219:05:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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