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2026-08-05 - 22:12
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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 Aug 05, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374031223350,1sleep10-21swapper/110:35:291
381844621510,2sleep00-21swapper/011:25:240
3629498992825,1cyclictest0-21swapper/307:20:013
3629498992623,1cyclictest0-21swapper/311:20:153
3629498992521,1cyclictest0-21swapper/312:00:203
3629498992421,1cyclictest0-21swapper/312:20:263
3629498992421,1cyclictest0-21swapper/309:40:113
3629498992320,1cyclictest0-21swapper/308:15:013
362949899221,16cyclictest3676938-21chrt09:55:263
3629498992118,1cyclictest0-21swapper/311:35:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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