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AM2434: MPU Region Non-cached vs. Shareable for IPC

Mari Tsunoda
Expert 5726 points
Part Number: AM2434


Tool/software:

Hi Team,

My customer is trying out the IPC example in the SDK. 

The shared memory region (0x701D0000~) is configured as non cached, but isn't shareable better for performance purposes?

Why is it by default configured as non-cached and can they configure it as shareable to increase performance? Which would be better for performance?

Best regards,

Mari Tsunoda

  • 0
    TI__Mastermind 40290 points

    Hi Mari, which IPC example is your customer evaluating?  General speaking in IPC we need to make sure cores have a coherent view of the shared memory, using a non-cached memory is a way to do it, another way would be to manage coherence manually. 

    thank you,

    Paula