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2026-06-30 - 08:44
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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 Tue Jun 30, 2026 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18247999812,78cyclictest0-21swapper/023:20:130
270942920,5chrt27093-21cut21:05:161
18247998833,42cyclictest14-21ksoftirqd/021:10:150
18247998815,58cyclictest0-21swapper/021:20:130
18247998814,61cyclictest0-21swapper/020:05:150
1824799876,68cyclictest17724-21apt-get22:10:130
1824799876,68cyclictest17724-21apt-get22:10:130
1824799876,66cyclictest1133-21apt-get00:25:130
18247998714,59cyclictest0-21swapper/021:25:140
18247998664,12cyclictest0-21swapper/019:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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