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2026-05-23 - 16:09
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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 rack0slot0.osadl.org (updated Sat May 23, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2975121510,4sleep6186899cyclictest12:26:026
1897821060,0sleep40-21swapper/411:42:244
99722870,0sleep00-21swapper/011:50:210
297972850,0sleep20-21swapper/209:33:282
262952830,0sleep50-21swapper/512:30:175
227812790,1sleep11014-21runrttasks10:32:561
269982780,0sleep30-21swapper/310:24:173
253782780,1sleep081ktimersoftd/010:10:030
97852770,1sleep70-21swapper/709:39:577
216102760,0sleep40-21swapper/411:19:324
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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