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2025-08-27 - 02:17
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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 Aug 27, 2025 00:50:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1532328551,30sleep70-21swapper/719:09:017
1523728353,25sleep40-21swapper/419:07:454
1515028248,30sleep20-21swapper/219:06:312
1532227945,29sleep60-21swapper/619:08:596
1520927945,29sleep50-21swapper/519:07:225
1515827946,29sleep10-21swapper/119:06:381
1278827843,30sleep30-21swapper/319:05:043
1509027439,30sleep00-21swapper/019:05:400
280782680,0sleep70-21swapper/723:00:387
27042540,0sleep10-21swapper/120:35:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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