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2026-05-13 - 06:04
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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 May 13, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69609919725,1959cyclictest0-21swapper/021:24:500
66172698673,17sleep10-21swapper/119:06:561
66602578554,16sleep00-21swapper/019:07:230
6961994794,458cyclictest0-21swapper/119:10:081
696099456405,44cyclictest0-21swapper/019:10:070
696199374306,43cyclictest26524-21ssh21:24:501
696099947,62cyclictest0-21swapper/023:59:590
6960998615,54cyclictest0-21swapper/019:30:580
6961997920,27cyclictest0-21swapper/120:11:001
6961997919,26cyclictest0-21swapper/122:09:591
228699790,5rtkit-daemon2285-21rtkit-daemon19:36:150
6961997813,28cyclictest0-21swapper/121:42:591
6961997719,26cyclictest0-21swapper/121:38:581
228699770,3rtkit-daemon2285-21rtkit-daemon20:40:260
6961997620,23cyclictest0-21swapper/119:30:591
6961997619,27cyclictest0-21swapper/120:45:581
228699760,5rtkit-daemon2285-21rtkit-daemon23:32:490
228699760,4rtkit-daemon2285-21rtkit-daemon19:18:250
6961997518,24cyclictest0-21swapper/100:01:591
6961997517,28cyclictest0-21swapper/122:35:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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