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2025-12-13 - 20:53
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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 Sat Dec 13, 2025 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2973121450,4sleep02501399cyclictest10:30:530
157642750,1sleep50-21swapper/512:35:165
64492710,0sleep3401rcuc/310:14:303
179412700,0sleep70-21swapper/712:35:417
148402680,4sleep62505199cyclictest11:45:176
147432660,0sleep70-21swapper/709:47:257
2463326543,7sleep70-21swapper/707:08:027
2454126050,6sleep60-21swapper/607:06:486
2475725949,6sleep10-21swapper/107:09:331
254482580,4sleep42503599cyclictest11:28:574
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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