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2026-07-05 - 14:23
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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 rackdslot1.osadl.org (updated Sun Jul 05, 2026 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210521750,6sleep1373199cyclictest21:25:161
373099730,70cyclictest12267-21tr21:45:250
373299722,68cyclictest0-21swapper/219:38:492
373299681,65cyclictest0-21swapper/200:23:092
373099680,26cyclictest27699-21seq00:36:270
373099651,60cyclictest31811-21apt-get21:20:120
373099650,27cyclictest29331-21seq22:24:040
373099640,26cyclictest25405-21seq00:31:290
373099640,26cyclictest10311-21seq19:23:390
373099640,22cyclictest4036-21sed21:30:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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