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2025-12-29 - 16:29
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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 rack0slot2.osadl.org (updated Mon Dec 29, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2059552700,1sleep60-21swapper/609:44:126
407918225847,7sleep60-21swapper/607:03:556
407918225847,7sleep60-21swapper/607:03:556
408838225746,8sleep40-21swapper/407:08:104
408838225746,8sleep40-21swapper/407:08:104
40882642493,31sleep70-21swapper/707:06:297
40882642493,31sleep70-21swapper/707:06:297
4088734994739,7cyclictest34425-21latency_hist08:18:527
4088727994745,2cyclictest44497-21kworker/u16:0+events_unbound09:04:075
408834624232,7sleep50-21swapper/507:07:395
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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