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2026-06-23 - 11:44
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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 Tue Jun 23, 2026 00:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195439911582,19cyclictest26-21ksoftirqd/119:10:141
195409911412,88cyclictest0-21swapper/020:15:110
195409911070,28cyclictest14-21ksoftirqd/023:35:250
195409910669,27cyclictest14-21ksoftirqd/020:40:110
195409910610,85cyclictest0-21swapper/022:05:130
195409910462,30cyclictest14-21ksoftirqd/021:05:160
195409910311,25cyclictest0-21swapper/020:50:230
195439910270,20cyclictest26-21ksoftirqd/122:05:161
195409910262,29cyclictest14-21ksoftirqd/020:25:140
195439910063,25cyclictest26-21ksoftirqd/123:00:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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