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2026-08-06 - 22:11
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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 Thu Aug 06, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17667212356,32sleep10-21swapper/107:06:391
1781729420,27sleep00-21swapper/007:08:160
18186999115,66cyclictest0-21swapper/011:55:150
1818699904,23cyclictest24885-21seq10:30:000
18186999015,66cyclictest0-21swapper/007:30:100
18186998913,59cyclictest0-21swapper/007:15:120
18186998814,60cyclictest0-21swapper/012:00:140
18186998814,59cyclictest0-21swapper/012:20:210
18186998714,65cyclictest0-21swapper/008:45:120
18186998714,62cyclictest0-21swapper/008:25:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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