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2026-05-13 - 15:25
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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 rackeslot8.osadl.org (updated Wed May 13, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39730462350,1sleep00-21swapper/010:45:150
3666043992825,1cyclictest0-21swapper/309:40:003
3666043992724,1cyclictest0-21swapper/311:50:163
3666043992724,1cyclictest0-21swapper/307:15:003
3666043992523,1cyclictest0-21swapper/311:25:003
3666043992421,1cyclictest0-21swapper/309:10:013
3666043992321,1cyclictest0-21swapper/310:00:043
366604399222,15cyclictest4112827-21taskset12:10:253
3666043992220,1cyclictest0-21swapper/310:00:013
3666043992220,1cyclictest0-21swapper/309:20:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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