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2026-05-21 - 22:03
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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 rack5slot2.osadl.org (updated Thu May 21, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308212208192,11sleep10-21swapper/107:08:521
286932195177,13sleep00-21swapper/007:05:100
305562180162,12sleep30-21swapper/307:05:253
308912174158,12sleep20-21swapper/207:09:452
277592440,0sleep20-21swapper/210:29:142
313792420,0sleep10-21swapper/112:38:001
105842410,0sleep010585-21sh11:24:160
39372370,1sleep13110099cyclictest10:49:101
205852140,0sleep20-21swapper/210:10:002
180392120,0sleep00-21swapper/010:08:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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