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2026-06-27 - 04:47
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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 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2493021250,7chrt24926-21apt-get20:35:011
26832210021,31sleep10-21swapper/119:08:311
27164999654,22cyclictest26-21ksoftirqd/119:20:111
27160999563,22cyclictest25396-1kworker/u9:120:40:130
2694228915,64sleep00-21swapper/019:09:080
27164998850,21cyclictest26-21ksoftirqd/123:05:141
27164998751,20cyclictest26-21ksoftirqd/120:45:121
27160998760,14cyclictest14-21ksoftirqd/021:35:120
27160998663,13cyclictest14-21ksoftirqd/023:20:110
27160998662,13cyclictest14-21ksoftirqd/000:20:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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