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2026-06-04 - 01:12
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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 rack5slot3.osadl.org (updated Wed Jun 03, 2026 12:54:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8046998471,511cyclictest0-21swapper/611:45:066
8045998461,510cyclictest0-21swapper/511:45:075
8044998461,511cyclictest64450irq/122-eth011:45:074
8047997621,510cyclictest0-21swapper/711:45:077
80439969115,340cyclictest13181-21apt-config11:45:063
8040996757,417cyclictest0-21swapper/012:17:390
8040996757,417cyclictest0-21swapper/012:17:380
80419966974,254cyclictest0-21swapper/110:32:301
80449965219,382cyclictest0-21swapper/412:17:394
80449965219,382cyclictest0-21swapper/412:17:394
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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