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2026-06-11 - 04:41
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot4.osadl.org (updated Thu Jun 11, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256482141132,6sleep10-21swapper/119:05:551
25766212163,7sleep20-21swapper/219:07:282
256382114101,7sleep30-21swapper/319:05:493
258372110100,7sleep00-21swapper/019:08:230
252372660,0sleep30-21swapper/319:35:163
204332580,0sleep20-21swapper/223:50:132
22202550,0sleep00-21swapper/000:30:160
283672530,0sleep00-21swapper/020:05:170
2613799281,26cyclictest0-21swapper/219:28:232
2613799280,27cyclictest0-21swapper/219:23:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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