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2026-05-06 - 14:10
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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 rack0slot3.osadl.org (updated Wed May 06, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34108132378373,3sleep90-21swapper/907:06:1815
341131499364364,0cyclictest0-21swapper/209:18:598
341131499364364,0cyclictest0-21swapper/209:13:008
341131499364363,1cyclictest0-21swapper/209:53:598
341131499363363,0cyclictest0-21swapper/212:07:008
341131499363363,0cyclictest0-21swapper/212:06:598
341131499363363,0cyclictest0-21swapper/211:18:598
34109952356315,14sleep140-21swapper/1407:08:486
34108022356314,14sleep150-21swapper/1507:06:087
34107562355313,15sleep70-21swapper/707:05:2813
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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