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2026-05-08 - 13:31
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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
Characteristics of the 10 highest latencies:
System rack2slot0.osadl.org (updated Fri May 08, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76452850,2sleep22875399cyclictest10:16:562
240102780,2sleep32875899cyclictest09:47:573
224002720,0sleep30-21swapper/310:12:403
233732630,0sleep30-21swapper/311:13:443
146892580,0sleep20-21swapper/212:06:062
61282570,0sleep20-21swapper/212:36:072
223832570,1sleep0101ktimersoftd/009:10:490
212622570,0sleep20-21swapper/211:35:502
92692550,1sleep29272-21bash12:28:012
13912540,0sleep30-21swapper/309:31:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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