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2026-06-04 - 12:59
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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
Characteristics of the 20 highest latencies:
System rackcslot6.osadl.org (updated Thu Jun 04, 2026 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164066625540,6sleep00-21swapper/019:05:170
164232799381379,1cyclictest1884387-21kworker/2:100:39:012
1642327993810,1cyclictest0-21swapper/200:25:022
164232799380379,1cyclictest1603787-21kworker/2:322:18:012
164232799380378,1cyclictest1603787-21kworker/2:322:09:012
164232799380378,1cyclictest1603787-21kworker/2:321:00:022
164232799380378,1cyclictest1603787-21kworker/2:320:08:022
1642327993801,379cyclictest0-21swapper/223:26:012
1642327993800,380cyclictest0-21swapper/222:57:012
1642327993800,380cyclictest0-21swapper/221:33:022
1642327993800,380cyclictest0-21swapper/221:24:022
1642327993800,380cyclictest0-21swapper/200:18:022
1642327993800,379cyclictest0-21swapper/221:56:022
1642327993800,379cyclictest0-21swapper/221:36:012
1642327993800,379cyclictest0-21swapper/220:45:022
1642327993800,1cyclictest0-21swapper/223:44:022
1642327993800,1cyclictest0-21swapper/223:20:022
1642327993800,1cyclictest0-21swapper/221:28:022
1642315993800,379cyclictest0-21swapper/123:12:011
164232799379378,1cyclictest1603787-21kworker/2:323:15:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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