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2025-12-31 - 09:00
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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 Wed Dec 31, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1346399923844,53cyclictest0-21swapper/019:38:340
1346499874797,47cyclictest0-21swapper/119:38:341
131822647623,16sleep00-21swapper/019:07:340
13464994925,18cyclictest0-21swapper/119:10:161
1346399448363,75cyclictest13918-21munin-node19:10:150
13464998764,12cyclictest154162sleep120:44:591
13464998314,54cyclictest0-21swapper/119:21:011
13463998366,13cyclictest0-21swapper/021:53:000
1296528329,26sleep10-21swapper/119:05:261
228699820,5rtkit-daemon2285-21rtkit-daemon00:18:030
228699820,4rtkit-daemon2285-21rtkit-daemon19:19:420
228699810,3rtkit-daemon2285-21rtkit-daemon21:09:541
228699800,4rtkit-daemon2285-21rtkit-daemon20:08:080
13464997819,42cyclictest0-21swapper/122:56:581
228699770,4rtkit-daemon2285-21rtkit-daemon23:47:480
228699770,4rtkit-daemon2285-21rtkit-daemon23:47:470
126822770,3sleep0221rcuc/020:35:200
13464997611,55cyclictest0-21swapper/121:20:581
228699740,4rtkit-daemon2285-21rtkit-daemon19:56:381
228699730,4rtkit-daemon2285-21rtkit-daemon23:08:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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