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2026-08-17 - 04:43
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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 Aug 17, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
354426960,3sleep0171rcuc/019:05:280
71821400,9sleep0171rcuc/020:25:270
387629333,49sleep10-21swapper/119:06:151
4455999126,24cyclictest12275-21cat00:00:230
4455998831,17cyclictest30097-21cron23:20:000
445599876,74cyclictest0-21swapper/021:05:220
445599876,14cyclictest0-21swapper/021:55:110
4455998142,26cyclictest14-21ksoftirqd/020:30:170
445599802,46cyclictest19726-21tr22:50:180
4455997936,11cyclictest4510-21users22:05:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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