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2025-07-20 - 05:41
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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 20 highest latencies:
System rack4slot6.osadl.org (updated Sun Jul 20, 2025 00:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2234052980,94pltrace0-21swapper/319:05:223
2234052960,87pltrace0-21swapper/719:05:157
2513052880,84pltrace0-21swapper/519:07:175
2536527561,10sleep60-21swapper/619:09:456
2536127561,10sleep20-21swapper/219:09:412
2508027243,10sleep00-21swapper/019:06:020
2513052710,63pltrace0-21swapper/119:06:411
2504825844,10sleep40-21swapper/419:05:344
418552310,0pltrace0-21swapper/721:25:147
465352210,2pltrace0-21swapper/700:20:237
2868752200,4pltrace0-21swapper/700:02:187
247652190,1pltrace2479-21pltrace-run22:16:306
356052180,0pltrace0-21swapper/723:20:277
25564991812,5cyclictest0-21swapper/121:00:301
247652180,3pltrace3368-21cut22:20:146
25590991711,3cyclictest0-21swapper/721:09:277
25582991711,5cyclictest0-21swapper/523:41:305
2558299171,7cyclictest0-21swapper/500:25:005
25569991711,5cyclictest0-21swapper/223:10:552
25569991711,3cyclictest0-21swapper/222:56:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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