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2025-12-14 - 10:19
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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 rack0slot0.osadl.org (updated Sun Dec 14, 2025 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2552621370,0sleep60-21swapper/623:18:376
24777999517,22cyclictest0-21swapper/321:46:373
125212890,0sleep60-21swapper/623:06:116
52642820,0sleep50-21swapper/523:20:215
293672770,0sleep20-21swapper/200:31:092
24777997717,46cyclictest0-21swapper/322:57:403
89772760,0sleep30-21swapper/321:18:413
190782750,1sleep00-21swapper/000:14:170
274812740,0sleep20-21swapper/200:00:082
125702730,0sleep00-21swapper/023:57:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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