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2025-05-09 - 05:58
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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 Fri May 09, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33502348268,26sleep10-21swapper/11
364699283277,4cyclictest8156-21perf0
34442252184,55sleep20-21swapper/22
32722244173,24sleep30-21swapper/33
33292228190,25sleep00-21swapper/00
365999220214,3cyclictest8136-21munin-run3
365199206198,5cyclictest8177-21idleruntime-cro1
365499187182,3cyclictest8178-21sendmail2
247492500,1sleep10-21swapper/11
220852460,4sleep00-21swapper/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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