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2026-06-03 - 22:30
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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 rackcslot4.osadl.org (updated Wed Jun 03, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33672732280240,27sleep10-21swapper/107:05:531
33673962270190,44sleep00-21swapper/007:07:130
179699790,4rtkit-daemon1795-21rtkit-daemon11:07:131
336790599743,49cyclictest3535983-21apt-get11:50:130
34637142610,3sleep0161rcuc/010:12:500
336790599603,6cyclictest3561566-21apt-get12:25:140
336790599582,6cyclictest3404191-21apt-get08:40:110
336790599582,6cyclictest3382675-21apt-get07:45:140
35550032570,1sleep13555004-21sh12:15:221
336790599562,6cyclictest3412422-21apt-get09:00:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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