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2026-06-27 - 16:22
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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 rack3slot6.osadl.org (updated Sat Jun 27, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17615999870,14cyclictest14-21ksoftirqd/008:20:150
1712729322,24sleep00-21swapper/007:06:420
17615999218,57cyclictest0-21swapper/010:20:130
17615999167,13cyclictest14-21ksoftirqd/012:20:110
17615999165,14cyclictest14-21ksoftirqd/007:40:140
17615998962,17cyclictest14-21ksoftirqd/010:15:120
17615998962,17cyclictest14-21ksoftirqd/010:15:120
17615998864,14cyclictest14-21ksoftirqd/012:35:130
17615998414,56cyclictest0-21swapper/011:00:150
17615998414,56cyclictest0-21swapper/009:35:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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