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Altera_Forum
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13 years ago

Very slow Nios II performance for my c code

Hi everybody. I am loosing my mind with this issue... I have made a FFT of 256 point, in c code, that runs very fast in my pc. The code calculates FFT points and prints them in screen. So eve...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Hi there,

so you calculate the FFT in the NIOS and transfer it to the media computer by what?

Does your sample code use float?

You could add the Performance counter and measure how long parts of your application take:

http://www.altera.com/literature/an/an391.pdf Page 13

Or any of the other profiling methods from this document to try finding the bottle neck

Good luck