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2024-11-22 - 10:27
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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 rack4slot6.osadl.org (updated Fri Nov 22, 2024 00:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30302521350,127pltrace0-21swapper/519:09:505
30302521220,114pltrace0-21swapper/119:09:531
30302521140,105pltrace0-21swapper/219:09:332
594221070,1sleep30-21swapper/322:15:133
30302521070,96pltrace0-21swapper/719:09:247
3030252880,84pltrace0-21swapper/619:08:566
3030252800,66pltrace0-21swapper/319:09:283
3010225844,10sleep00-21swapper/019:05:540
3025625743,10sleep40-21swapper/419:08:064
2994952320,2pltrace0-21swapper/723:00:127
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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