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2026-06-13 - 11:26
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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 rack8slot4.osadl.org (updated Sat Jun 13, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39988592231170,19sleep60-21swapper/619:09:486
39988592231170,19sleep60-21swapper/619:09:486
39987912230168,49sleep30-21swapper/319:08:493
39987912230168,49sleep30-21swapper/319:08:493
39987482229168,19sleep70-21swapper/719:08:127
39987482229168,19sleep70-21swapper/719:08:127
39988192212182,20sleep40-21swapper/419:09:144
39988192212182,20sleep40-21swapper/419:09:144
39985622211182,19sleep00-21swapper/019:05:320
39985622211182,19sleep00-21swapper/019:05:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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