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2025-12-27 - 03:52
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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 rack1slot2.osadl.org (updated Sat Dec 27, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2868324131,0sleep20-21swapper/219:10:112
2873723728,0sleep10-21swapper/119:10:461
2858523625,0sleep00-21swapper/019:09:010
2865923324,0sleep30-21swapper/319:09:523
8305060,0irq/26-0000:00:16307-21idleruntime-cro21:51:112
339960,0migration/39592-21sh23:33:363
339960,0migration/3417-21sh22:36:233
339960,0migration/326811-21taskset23:42:023
339960,0migration/324825-21sh21:55:093
339960,0migration/323758-21sh23:23:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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