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2026-05-01 - 22:33
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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 rack3slot6.osadl.org (updated Fri May 01, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22100999364,15cyclictest14-21ksoftirqd/011:50:130
2143529335,42sleep00-21swapper/007:05:300
22100998916,55cyclictest0-21swapper/010:55:120
22100998864,13cyclictest14-21ksoftirqd/010:40:110
22100998812,68cyclictest0-21swapper/007:35:100
22100998669,9cyclictest14-21ksoftirqd/012:35:110
2210099865,64cyclictest11454-21apt-get08:10:130
22100998615,56cyclictest0-21swapper/007:45:130
22100998514,57cyclictest0-21swapper/010:30:110
2210099847,65cyclictest26207-21apt-get07:20:100
22100998414,59cyclictest0-21swapper/007:40:120
22100998414,54cyclictest0-21swapper/007:15:140
22100998413,57cyclictest0-21swapper/012:25:130
22100998413,56cyclictest0-21swapper/008:35:130
2210099837,69cyclictest0-21swapper/007:25:130
22100998314,61cyclictest0-21swapper/008:30:130
22100998313,59cyclictest0-21swapper/009:35:130
22100998313,58cyclictest0-21swapper/011:55:120
2164428322,16sleep10-21swapper/107:07:021
2210099827,64cyclictest21988-21apt-get08:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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