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2025-11-18 - 02:34
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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 rack5slot2.osadl.org (updated Tue Nov 18, 2025 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128572201186,10sleep10-21swapper/119:07:121
129122185167,13sleep00-21swapper/019:07:510
126982181164,12sleep30-21swapper/319:05:263
129712174156,13sleep20-21swapper/219:08:382
247072430,0sleep00-21swapper/021:33:320
290272390,0sleep10-21swapper/100:18:411
13302100,0sleep20-21swapper/222:10:172
132669991,4cyclictest19044-21perf20:25:000
3496280,0sleep00-21swapper/000:38:350
132669982,3cyclictest31613-21perf20:50:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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