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2026-09-06 - 19:21
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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 Sun Sep 06, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111082850,5sleep111112-21sed09:45:271
1857927921,46sleep10-21swapper/107:09:171
1836827819,50sleep00-21swapper/007:07:330
18784997436,25cyclictest0-21swapper/111:25:241
18780997453,14cyclictest0-21swapper/011:55:240
147262740,7sleep0171rcuc/009:55:280
18784997240,18cyclictest15771-21apt-get10:00:151
18784997238,27cyclictest0-21swapper/112:25:111
18784997236,25cyclictest0-21swapper/109:15:131
18784997236,25cyclictest0-21swapper/109:15:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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