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2026-06-25 - 15:47
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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 Thu Jun 25, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4847211121,37sleep00-21swapper/007:08:520
51379910957,30cyclictest26-21ksoftirqd/111:55:121
4936210328,19sleep10-21swapper/107:09:171
5137999641,33cyclictest26-21ksoftirqd/110:40:111
5135999462,19cyclictest14-21ksoftirqd/008:10:150
513599929,73cyclictest29657-21aten2.4_r3power11:20:310
5135999215,63cyclictest0-21swapper/007:45:110
5135999114,64cyclictest0-21swapper/011:05:100
513799909,58cyclictest0-21swapper/110:20:121
5137999011,56cyclictest0-21swapper/110:15:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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