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2025-05-09 - 05:48
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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 Fri May 09, 2025 00:45:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
714121120,0sleep10-21swapper/123:25:121
34852810,1sleep31036-21runrttasks21:14:523
267442780,1sleep10-21swapper/100:04:001
302932770,0sleep30-21swapper/322:37:313
290892770,0sleep70-21swapper/723:50:437
147272770,0sleep00-21swapper/022:29:170
253362750,0sleep50-21swapper/521:30:175
289412740,0sleep70-21swapper/721:34:037
276362740,0sleep40-21swapper/422:17:124
235282740,3sleep72672399cyclictest21:36:447
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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