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2025-07-02 - 18:15
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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 rack9slot2.osadl.org (updated Wed Jul 02, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
276292313275,25sleep10-21swapper/11
271592285216,56sleep00-21swapper/00
259592257221,23sleep20-21swapper/22
275412241176,34sleep30-21swapper/33
331521600,2sleep22791599cyclictest2
549221080,2sleep02790599cyclictest0
549221080,2sleep02790599cyclictest0
231532560,2sleep09-21ksoftirqd/00
101042530,2sleep10-21swapper/11
63932480,1sleep00-21swapper/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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