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2026-08-22 - 03:18
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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 10 highest latencies:
System rack3slot0.osadl.org (updated Sat Aug 22, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
229302760,1sleep665-21ksoftirqd/622:17:496
321522730,0sleep10-21swapper/121:49:411
149622600,2sleep11255499cyclictest21:29:061
221602570,1sleep322145-21bash22:32:043
216732530,0sleep30-21swapper/322:10:333
1231125227,9sleep30-21swapper/319:04:403
1231125227,9sleep30-21swapper/319:04:403
14722510,0sleep70-21swapper/722:36:167
1233325127,8sleep70-21swapper/719:05:007
1233325127,8sleep70-21swapper/719:05:007
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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