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2025-12-09 - 15:11
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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 Tue Dec 09, 2025 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322102850,1sleep7771ktimersoftd/711:45:017
154882850,19sleep313350irq/24-ahci[00010:02:463
143262840,0sleep60-21swapper/612:20:176
322662830,0sleep30-21swapper/311:54:343
296922810,1sleep3401rcuc/311:30:133
110752780,1sleep7771ktimersoftd/709:42:557
27462770,0sleep0121rcuc/007:35:150
240632770,1sleep50-21swapper/512:26:255
86172760,0sleep10-21swapper/111:55:371
324822750,0sleep00-21swapper/010:57:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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