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2026-05-12 - 23:50
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot2.osadl.org (updated Tue May 12, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
95062200185,10sleep10-21swapper/107:09:241
95512195179,11sleep00-21swapper/007:09:550
93132186169,12sleep30-21swapper/307:06:523
92342173155,14sleep20-21swapper/207:05:522
315512470,0sleep20-21swapper/210:57:122
161532450,0sleep00-21swapper/010:50:040
129222420,0sleep10-21swapper/110:48:141
99352390,0sleep10-21swapper/112:22:101
41382130,0sleep30-21swapper/312:19:523
26282120,0sleep10-21swapper/109:24:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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