How to profile the C6474 function in the DSP/BIOS environment?

Thank you so much.   I have some further questions.

1. As in your answer "// code to be benchmarked", is there any function to let the cpu run for a given number of cycles.  For example, something like a "cpurun(1000)", then in the "delta = stop - start;  // number of elapsed CPU cycles" , delta is 1000.

2. Would you please confirm that the actual time needed can be calculated by the product of "delta" and 1e-9, (For the C6474 @1GHz)?

Thank you for your information.   However, I have not succeeded in the profiling yet.  Here is the part of the codes

// This function is called from the PRD function manager.

void sendIPCmessagePRD(){

int i, data;

unsigned int start, stop, delta;

......

// CLK_start();

start = CLK_gethtime();

// code to be benchmarked

// Data processing

data = 0;

for (i = 0; i< 1000000; i++)

{

data += 1;

}

stop = CLK_gethtime();

delta = stop - start;  // number of elapsed CPU cycles

LOG_printf(&trace, "Number of cycles is %d", delta);

}

But the delta value is abnormal.  It does not change to the number of iteration in the for loop.  And the number of cycles is not reasonable (sometimes it is always 14 for any iteration number and sometimes it is always 0).

Any idea about this problem? I was stucked to it for a long time.

Your guess is correct.  Now the profiling works.  Thank you very much for your informative answer.