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AM6442: Throughput benchmark to R5F <--> DRAM

Tsurumoto
Genius 12200 points
Part Number: AM6442
Hi
I'm searching the document which describes about benchmark result about the throughput between R5F to/from external DRAM.
Thanks and Best regards,
Tsurumoto.
  • +1
    TI__Mastermind 27355 points

    Tsurumoto-san,

    We have some preliminary results for the STREAM Benchmark that I'm sharing below. We plan to publish these in the MCU+ SDK documentation and the AM64x Benchmarks app note soon.

    Function    Best Rate MB/s  Avg time     Min time     Max time

    Copy:             236.5     0.067743     0.067665     0.067803

    Scale:            211.4     0.075960     0.075699     0.076119

    Add:              182.9     0.131338     0.131240     0.131397

    Triad:            168.8     0.142870     0.142222     0.146219

    The four individual scores are copy, scale as in multiply by constant, add two numbers, and triad for multiply accumulate. For bandwidth, a byte read counts as one and a byte written counts as one.

    I hope this helps.

    Regards,
    Sahin

  • 0 in reply to Sahin Okur
    TI__Genius 12200 points

    Hi Sahin

    Thank you so much.

    So, the following number described in AM64x Benchmarks app note represent the number for A53 <--> DDR

    And the number you let me know represent the number R5 <--> DDR.

    Does it correct?

    Thanks and Best regards,

    Tsurumoto.

  • 0 in reply to Tsurumoto
    TI__Mastermind 27355 points

    That is correct.

    Regards,
    Sahin