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2026-05-09 - 13:43
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Sat May 09, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2831299209792105300,104490cyclictest0-21swapper22:20:390
283129910722053451,53673cyclictest12984-21diskmemload22:10:460
283129910681253425,53387cyclictest0-21swapper22:04:440
283129910675153414,53271cyclictest0-21swapper20:09:210
283129910665753456,53110cyclictest9-21ksoftirqd/023:16:150
283129910657153388,53091cyclictest0-21swapper20:49:330
283129910654953389,53069cyclictest0-21swapper21:15:400
283129910654653449,53097cyclictest0-21swapper22:40:050
283129910653853407,53040cyclictest0-21swapper21:01:160
283129910652353471,53052cyclictest0-21swapper23:08:530
283129910652053478,53042cyclictest0-21swapper21:39:370
283129910651253468,53044cyclictest0-21swapper00:08:000
283129910650853473,53035cyclictest0-21swapper00:33:370
283129910647753418,53059cyclictest0-21swapper22:18:080
283129910646753452,53015cyclictest0-21swapper22:05:550
283129910646253450,53012cyclictest0-21swapper21:55:120
283129910646153410,53051cyclictest0-21swapper21:43:380
283129910646053452,53008cyclictest0-21swapper00:16:520
283129910645853452,53006cyclictest0-21swapper20:36:290
283129910644953442,53007cyclictest0-21swapper22:51:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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