Clock not loading into variable.

Kyle Johnson

I am interested in recording the number of clock ticks between two points in my code.  I have implemented the following example in my code.

#include <time.h>
     
     clock_t start, end;
     double cpu_time_used;
     
     start = clock();
     ... /* Do the work. */
     end = clock();
     cpu_time_used = ((double) (end - start)) / CLOCKS_PER_SEC;

However, clock() always retruns the same value: 16318713 0x00000612@Data

It also give the following error: cannot load from non-primitive location.

Can anyone explain what is going on here and how I can fix it?

Thank you very much.

over 12 years ago

0 Gautam Iyer over 12 years ago

Guru 192875 points

Hi,

Why don't you make use of the most simplest clock profiling? Here's how you can do it:

http://processors.wiki.ti.com/index.php/Profile_clock_in_CCS

Regards,

Gautam

0 Kyle Johnson over 12 years ago in reply to Gautam Iyer

Prodigy 50 points

Thank you for getting back to me so quick.

I have used the profiler, but what I really need is to be able to use the timing info in the code. Is there any way to get the same information the profiler gets but get it in the code? I don't care how i get it, I just need precise timing info in the code. Maybe some sort of clock tick handler?

Thanks for your help with this.

0 Gautam Iyer over 12 years ago in reply to Kyle Johnson

Guru 192875 points

What about using a cpu timer then? You can calculate clock ticks from the timer value.

0 Ralf Koopmans over 11 years ago

Prodigy 80 points

I'm also facing this problem.
I used all mine timers. I use the times to schedule my program and interface. But now I want to know how long its doing nothing.
Did you solved this issue?

0 Gautam Iyer over 11 years ago in reply to Ralf Koopmans

Guru 192875 points

Hi Ralf,

Do post in a new thread too for quick responses.

Regards,

Gautam

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Clock not loading into variable.