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2026-06-20 - 12:03
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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 rack8slot4.osadl.org (updated Sat Jun 20, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6166222233173,18sleep60-21swapper/619:08:396
6166442226180,36sleep10-21swapper/119:08:591
6164332224161,19sleep30-21swapper/319:05:553
6166722223164,18sleep20-21swapper/219:09:242
6167152222162,19sleep50-21swapper/519:09:595
6166852222160,19sleep40-21swapper/419:09:344
6164842210180,19sleep70-21swapper/719:06:397
6164392202173,19sleep00-21swapper/019:06:000
61693099340,32cyclictest673338-21cron20:50:013
61693099340,32cyclictest673338-21cron20:50:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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