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2026-03-07 - 20:48
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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 Mar 07, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3106221420,3sleep51909399cyclictest09:21:585
2686521200,0sleep60-21swapper/609:54:476
1496921180,3sleep11906899cyclictest11:32:591
1496921180,3sleep11906899cyclictest11:32:591
1780121100,2sleep00-21swapper/007:05:180
287522800,0sleep40-21swapper/412:37:064
295072760,1sleep20-21swapper/211:20:422
295072760,1sleep20-21swapper/211:20:422
246512760,1sleep1221rcuc/110:56:051
145922760,0sleep50-21swapper/510:30:445
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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