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2024-07-27 - 07:08
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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 Sat Jul 27, 2024 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
66702287249,25sleep30-21swapper/33
66832254187,26sleep10-21swapper/11
64362251179,23sleep20-21swapper/22
65602230192,25sleep00-21swapper/00
205221440,1sleep00-21swapper/00
87532550,2sleep00-21swapper/00
243992430,1sleep20-21swapper/22
7152400,1sleep30-21swapper/33
114012390,2sleep20-21swapper/22
693099340,3cyclictest9536-21gpgv2
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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