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2025-11-18 - 03:20
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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 Tue Nov 18, 2025 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2695021540,4sleep03261099cyclictest00:09:230
216521200,4sleep63264699cyclictest21:40:216
1215821130,0sleep70-21swapper/723:27:467
2739921100,0sleep00-21swapper/022:19:340
237432850,2sleep70-21swapper/723:35:307
263222790,0sleep40-21swapper/400:09:194
183652780,0sleep2311rcuc/219:45:192
139262770,0sleep20-21swapper/200:34:572
110142760,0sleep70-21swapper/700:17:477
269742750,0sleep30-21swapper/323:02:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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