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2025-02-17 - 18:40
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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 rackeslot3.osadl.org (updated Mon Feb 17, 2025 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2605812997741,35cyclictest2657583-21kworker/1:010:20:011
2605812997440,33cyclictest2630554-21kworker/1:208:35:161
2605812997342,30cyclictest2657583-21kworker/1:010:30:131
2605812997042,27cyclictest2673778-21kworker/1:111:15:121
2605812997040,29cyclictest2630554-21kworker/1:208:30:001
2605812997040,29cyclictest2630554-21kworker/1:208:30:001
2605812997035,34cyclictest2603904-21kworker/1:207:15:011
2605812996936,31cyclictest2647318-21kworker/1:009:15:161
260581299681,65cyclictest0-21swapper/111:10:121
260581299681,65cyclictest0-21swapper/111:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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