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2026-05-09 - 22:50
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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 rack5slot2.osadl.org (updated Sat May 09, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
263982199183,11sleep30-21swapper/307:07:333
265242191175,11sleep10-21swapper/107:09:121
263952188173,11sleep00-21swapper/007:07:300
263152171154,13sleep20-21swapper/207:06:272
70462430,0sleep10-21swapper/109:17:461
127242430,0sleep10-21swapper/109:20:181
92692420,0sleep20-21swapper/212:29:322
207902160,1sleep30-21swapper/309:05:153
237482120,0sleep041ktimersoftd/010:29:240
11346290,0sleep30-21swapper/312:14:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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