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2026-07-15 - 20:46
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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 Wed Jul 15, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5618223150,1sleep20-21swapper/207:45:152
12856921340,2sleep10-21swapper/108:40:181
4533002370,1sleep10-21swapper/112:10:231
3726732370,6sleep2421rcuc/211:20:202
8638992825,1cyclictest0-21swapper/310:40:113
8638992623,1cyclictest0-21swapper/310:20:183
8638992623,1cyclictest0-21swapper/309:40:203
8638992623,1cyclictest0-21swapper/307:20:013
8638992522,1cyclictest0-21swapper/311:20:003
8638992522,1cyclictest0-21swapper/309:45:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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