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C674x and C64x+ core performance issues

Abhishek Singh Sisodia
Intellectual 535 points

Hi

I am planning to use DM8148 DSP i.e C674x core (750Mhz)  for my algorithm. I have tried to profile the algorithm of C674x Cycle Accurate Simulator and got some profile figures.

The same algorithm i have tried to profile on C64x+ cycle accurate simulator and got different profile results. It seems the performance on C674x simulator is much more than that on C64x+ core despite of the fact that C674x has C64x+ core.

1. Can you please explain why the results are different?

2. Can you also tell me that which simulator is best to simulate the accurate results on DM8148 DSP core at 750MHz?

 

Please provide me some reference of the simulators and their properties for the different DSP's if u have any.

Thanks

Abhishek 

  • 0
    TI__Guru* 84110 points

    Abhishek,

    This is a simulator question that belongs in the Code Composer forum. This thread will be moved to there.

    There is no reason why C64x+ code should run any differently on the C674x unless it has floating point code that runs natively and faster on the C674x. Any exact code from the C64x+ should run exactly the same on the C674x.

    Regards,
    RandyP