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2026-06-14 - 11:28
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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 Sun Jun 14, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62009910312,27cyclictest0-21swapper/000:30:120
62009910148,44cyclictest14-21ksoftirqd/019:30:120
62009910148,44cyclictest14-21ksoftirqd/019:30:120
62009910113,74cyclictest0-21swapper/020:45:110
6205991008,70cyclictest0-21swapper/122:15:231
6200999914,79cyclictest0-21swapper/000:25:130
6200999814,77cyclictest0-21swapper/000:20:130
6200999812,24cyclictest0-21swapper/022:10:110
6200999811,26cyclictest0-21swapper/023:10:100
6200999713,73cyclictest0-21swapper/022:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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