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i.mx8 ddr bandwidth pmu

Question asked by Ofer Heifetz on Feb 2, 2019

Hi,

 

I am want to measure the CPU`s DDR access during a benchmark test, the results should be for a predefined test duration how many bytes were read and written to DDR.

 

There are several counters I saw in the PMU that may be relevant but I could not find the description of the PMU counters in the i.MX8 spec.

 

Is there some additional spec that describes the PMU counters?

Is there a way to perform the DDR usage?

 

Thanks,

 

/Ofer

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