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2025-12-26 - 15:44
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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 Fri Dec 26, 2025 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1861221110,2sleep5360899cyclictest09:13:215
2368721080,0sleep20-21swapper/210:06:152
205052880,1sleep20-21swapper/211:19:242
38242850,0sleep70-21swapper/707:10:107
160252770,1sleep1221rcuc/108:40:181
262782740,0sleep30-21swapper/310:38:133
262782740,0sleep30-21swapper/310:38:133
259562740,0sleep50-21swapper/510:17:095
173992740,0sleep70-21swapper/710:36:417
173992740,0sleep70-21swapper/710:36:417
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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