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2026-01-10 - 23:21
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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 Jan 10, 2026 12:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
264239910067,19cyclictest0-21swapper/010:00:170
26430999853,25cyclictest26-21ksoftirqd/110:25:111
26423999872,13cyclictest14-21ksoftirqd/008:45:140
26423999872,13cyclictest14-21ksoftirqd/008:45:130
26423999777,11cyclictest14-21ksoftirqd/007:30:120
26423999773,10cyclictest14-21ksoftirqd/008:25:120
26423999771,13cyclictest14-21ksoftirqd/009:50:130
26423999670,15cyclictest14-21ksoftirqd/010:30:140
26423999574,13cyclictest0-21swapper/010:20:120
26423999469,12cyclictest14-21ksoftirqd/009:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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