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2025-12-16 - 13:06
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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 rack4slot6.osadl.org (updated Tue Dec 16, 2025 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12088521150,101pltrace0-21swapper/219:05:112
11323521020,93pltrace0-21swapper/119:05:061
1208852960,88pltrace0-21swapper/619:05:376
1436827562,9sleep50-21swapper/519:08:315
1430127561,10sleep30-21swapper/319:07:333
1426925945,10sleep00-21swapper/019:07:060
1417325944,11sleep70-21swapper/719:05:457
1418825743,10sleep40-21swapper/419:05:574
613152320,4pltrace0-21swapper/722:45:217
289252300,1pltrace0-21swapper/619:45:106
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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