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2026-08-14 - 22:29
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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
Characteristics of the 10 highest latencies:
System rack7slot1.osadl.org (updated Fri Aug 14, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8877212359,59sleep20-21swapper/207:06:332
8866212057,58sleep10-21swapper/107:06:241
9134211452,57sleep00-21swapper/007:09:280
509421140,1sleep330818-21stress11:50:153
509421140,1sleep330818-21stress11:50:153
2316921130,1sleep030818-21stress12:30:230
909229545,19sleep30-21swapper/307:08:553
3272560,1sleep130818-21stress09:12:281
927899505,24cyclictest0-21swapper/311:35:203
927899499,20cyclictest0-21swapper/309:35:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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