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2026-08-15 - 17:48
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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 rack3slot6.osadl.org (updated Sat Aug 15, 2026 12:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1022221190,6sleep10-21swapper/110:05:171
116959910475,16cyclictest0-21swapper/008:25:150
11113210418,38sleep00-21swapper/007:05:430
11695999970,15cyclictest14-21ksoftirqd/008:10:130
11695999876,10cyclictest14-21ksoftirqd/007:40:130
11695999865,18cyclictest0-21swapper/010:55:130
11706999763,20cyclictest26-21ksoftirqd/111:50:141
11695999469,12cyclictest14-21ksoftirqd/010:50:150
11695999368,13cyclictest14-21ksoftirqd/010:25:230
11695999267,12cyclictest14-21ksoftirqd/010:40:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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