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2026-07-17 - 06:58
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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 Jul 17, 2026 00:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29097991076,82cyclictest0-21swapper/000:15:120
29097991076,82cyclictest0-21swapper/000:15:120
28626210317,34sleep10-21swapper/119:07:291
29097991027,78cyclictest0-21swapper/021:15:140
29102999879,9cyclictest26-21ksoftirqd/121:30:121
29102999774,10cyclictest26-21ksoftirqd/100:20:131
2909799967,16cyclictest0-21swapper/022:30:110
2848729622,27sleep00-21swapper/019:05:590
2909799948,73cyclictest0-21swapper/020:55:120
2909799928,16cyclictest0-21swapper/021:35:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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