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2026-05-04 - 21:56
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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 rack0slot0.osadl.org (updated Mon May 04, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2561921080,0sleep40-21swapper/411:21:164
124772820,0sleep50-21swapper/512:25:125
207442810,0sleep30-21swapper/309:37:293
234402760,1sleep10-21swapper/111:53:581
294432750,0sleep40-21swapper/410:11:284
260452740,1sleep4491rcuc/412:31:444
249842740,0sleep30-21swapper/310:29:463
200982740,1sleep70-21swapper/711:30:017
275902720,0sleep50-21swapper/512:08:375
19162720,4sleep32990399cyclictest10:45:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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