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2024-11-12 - 08:17
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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 Tue Nov 12, 2024 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65802313276,25sleep10-21swapper/11
66822279241,25sleep20-21swapper/22
686299277271,4cyclictest11400-21sendmail0
66322234197,24sleep30-21swapper/33
64312231193,25sleep00-21swapper/00
687099199193,4cyclictest11397-21perf2
687599173168,3cyclictest11379-21munin-run3
59992460,2sleep30-21swapper/33
59992460,2sleep30-21swapper/33
261132430,1sleep00-21swapper/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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