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2026-05-01 - 20:13
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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 Fri May 01, 2026 12:57:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12537997241,84cyclictest0-21swapper/612:00:506
12537997241,84cyclictest0-21swapper/612:00:496
12537997241,84cyclictest0-21swapper/612:00:496
125279970528,2cyclictest16360-21ssh10:33:133
12520996782,2cyclictest0-21swapper/210:33:132
12515996395,2cyclictest0-21swapper/110:33:131
12515996360,84cyclictest0-21swapper/110:43:011
125109962370,380cyclictest0-21swapper/009:13:360
125109961322,339cyclictest18602-21ssh09:44:120
125279960855,380cyclictest0-21swapper/312:14:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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