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2026-03-09 - 19:16
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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 rack5slot3.osadl.org (updated Mon Mar 09, 2026 12:55:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65649965520,384cyclictest0-21swapper/311:04:173
65619965521,383cyclictest7923-21runrttasks11:04:170
65679965319,383cyclictest0-21swapper/611:04:166
65659965320,382cyclictest68350irq/122-eth011:04:174
6566996396,382cyclictest0-21swapper/511:04:165
6562996321,380cyclictest0-21swapper/111:04:161
65689962634,381cyclictest0-21swapper/709:44:327
65649961421,383cyclictest0-21swapper/309:58:573
6568995985,383cyclictest0-21swapper/711:04:177
6568995975,383cyclictest0-21swapper/709:58:577
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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