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2026-05-16 - 00:38
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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 Fri May 15, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2511721330,6chrt25116-21sed12:20:371
1057621020,5chrt10579-21ls11:40:350
10694999166,12cyclictest14-21ksoftirqd/008:55:120
10694999065,13cyclictest14-21ksoftirqd/012:25:100
10694998860,16cyclictest14-21ksoftirqd/007:20:150
10694998763,12cyclictest14-21ksoftirqd/007:40:110
10694998757,19cyclictest0-21swapper/011:30:130
10694998654,19cyclictest14-21ksoftirqd/007:50:140
10694998454,17cyclictest0-21swapper/009:25:100
10694998354,20cyclictest14-21ksoftirqd/007:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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