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2026-06-04 - 20:55
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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 20 highest latencies:
System rack3slot6.osadl.org (updated Thu Jun 04, 2026 12:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52379910375,17cyclictest14-21ksoftirqd/011:55:140
52379910373,17cyclictest14-21ksoftirqd/009:30:140
52379910271,21cyclictest14-21ksoftirqd/007:35:100
52379910079,9cyclictest14-21ksoftirqd/009:10:270
52379910074,16cyclictest14-21ksoftirqd/009:00:110
5237999970,19cyclictest14-21ksoftirqd/012:35:140
5237999970,19cyclictest14-21ksoftirqd/012:35:140
5237999969,18cyclictest14-21ksoftirqd/009:55:140
5237999969,18cyclictest14-21ksoftirqd/009:55:140
5237999766,17cyclictest14-21ksoftirqd/008:40:120
5237999666,20cyclictest14-21ksoftirqd/008:50:120
5237999666,16cyclictest14-21ksoftirqd/008:55:110
5237999467,17cyclictest14-21ksoftirqd/007:20:100
5237999466,18cyclictest14-21ksoftirqd/009:45:150
5237999465,19cyclictest14-21ksoftirqd/010:45:130
5237999464,18cyclictest14-21ksoftirqd/012:25:110
5237999367,17cyclictest14-21ksoftirqd/010:05:120
5237999364,19cyclictest14-21ksoftirqd/007:15:150
5237999361,18cyclictest14-21ksoftirqd/011:45:110
5237999258,23cyclictest14-21ksoftirqd/008:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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