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2026-07-06 - 02:56
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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 Mon Jul 06, 2026 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10839999015,59cyclictest0-21swapper/119:20:121
1027629026,16sleep10-21swapper/119:06:011
1025428925,53sleep00-21swapper/019:05:450
10839998826,48cyclictest0-21swapper/120:20:151
10839998714,62cyclictest0-21swapper/122:00:161
1083299878,54cyclictest0-21swapper/020:45:130
1083299876,73cyclictest0-21swapper/021:35:130
1083299876,73cyclictest0-21swapper/020:10:130
1083999868,71cyclictest0-21swapper/120:15:151
10839998615,58cyclictest0-21swapper/123:50:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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