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i.mx8 ddr bandwidth pmu

Question asked by Ofer Heifetz on Feb 2, 2019



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?