Re: timing a function

[Momchil Velikov <velco@fadata.bg>]

>>>>> "D Cleveland" == D Cleveland <dc7525@ship.edu> writes:

D Cleveland> Im looking to check the relative time it takes to call a function and then
D Cleveland> return.  does anyone know how i can do this easily?  heres what im hoping
D Cleveland> i can do...

D Cleveland> int len;

D Cleveland> len = check_timer();
D Cleveland> function_to_time();
D Cleveland> len = check_timer() - len;

Can you invoke the function many times in a loop ? If so, you may consider doing:

    start = check_timer ();
    for (i = 0; i < SOME_CONST_EG_10000; i++)
      function_to_time ();
    end = check_timer ();
    function_time = (end - start) / SOME_CONST_EG_10000;

as this will make the timing error <= clock-precision / 10000;

Regards,
-velco
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