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2025-06-29 - 00:59
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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 Jun 28, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154792310271,25sleep00-21swapper/00
155342298236,50sleep20-21swapper/22
156942292181,41sleep10-21swapper/11
154572255177,24sleep30-21swapper/33
1587899193187,4cyclictest24535-21perf1
1587199188182,4cyclictest24516-21munin-run0
1588699181175,4cyclictest24536-21idleruntime-cro3
1588299158155,2cyclictest0-21swapper/22
241772560,2sleep00-21swapper/00
289852550,4sleep10-21swapper/11
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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