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2026-06-12 - 04:33
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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 10 highest latencies:
System rack3slot6.osadl.org (updated Fri Jun 12, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299559911411,90cyclictest0-21swapper/000:15:140
299559911012,85cyclictest0-21swapper/019:50:110
2370721100,6chrt23000-21/usr/sbin/munin21:50:381
299559910913,80cyclictest0-21swapper/022:55:150
299559910910,86cyclictest0-21swapper/021:05:120
299559910711,84cyclictest0-21swapper/023:20:120
299559910710,82cyclictest0-21swapper/022:40:160
299559910672,21cyclictest0-21swapper/019:45:140
299559910611,76cyclictest0-21swapper/021:10:140
299559910512,80cyclictest0-21swapper/020:45:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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