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2026-04-27 - 08:50
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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 Mon Apr 27, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
368952421270,2sleep1321rcuc/122:35:181
3397249993936,1cyclictest0-21swapper/321:30:003
3397249993027,1cyclictest0-21swapper/321:00:003
36195422270,2sleep1321rcuc/121:50:201
3397249992724,1cyclictest0-21swapper/319:15:003
339724999242,17cyclictest3597701-21chrt21:35:183
3397249992421,1cyclictest0-21swapper/323:20:023
3397249992421,1cyclictest0-21swapper/322:35:003
3397249992321,0cyclictest0-21swapper/321:10:233
339724999231,17cyclictest3692265-21chrt22:35:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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