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2026-06-08 - 11:53
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Mon Jun 08, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
108122977958,13sleep10-21swapper/119:08:221
1100799911849,50cyclictest0-21swapper/019:11:270
1100899860801,45cyclictest0-21swapper/119:11:271
105332503479,16sleep00-21swapper/019:05:350
11008999414,62cyclictest0-21swapper/119:29:001
228699920,4rtkit-daemon2285-21rtkit-daemon00:23:490
11008998715,55cyclictest0-21swapper/121:08:001
11007998768,14cyclictest0-21swapper/022:16:590
11008998616,51cyclictest0-21swapper/123:40:591
228699820,5rtkit-daemon2285-21rtkit-daemon20:52:001
228699820,4rtkit-daemon2285-21rtkit-daemon23:55:440
228699800,4rtkit-daemon2285-21rtkit-daemon23:41:440
11008997916,48cyclictest0-21swapper/122:46:591
228699760,5rtkit-daemon2285-21rtkit-daemon00:25:131
228699760,4rtkit-daemon2285-21rtkit-daemon20:00:191
228699740,4rtkit-daemon2285-21rtkit-daemon23:39:490
228699740,4rtkit-daemon2285-21rtkit-daemon22:58:080
228699740,4rtkit-daemon2285-21rtkit-daemon22:58:070
32532730,4sleep00-21swapper/023:30:100
228699730,4rtkit-daemon2285-21rtkit-daemon23:50:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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