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2026-03-09 - 15:41
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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 Mon Mar 09, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
220622980,0sleep40-21swapper/411:04:414
114592940,0sleep40-21swapper/411:13:064
100252800,1sleep21427099cyclictest12:13:192
41722680,1sleep44167-21sshd11:31:004
178252620,0sleep20-21swapper/210:31:392
225802510,0sleep422577-21sshd12:08:334
78342500,0sleep00-21swapper/011:20:150
186952500,0sleep418587-21cstates11:17:154
33542490,1sleep53348-21bash10:14:205
242442490,1sleep124246-21bash11:21:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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