C7x : Abnormal behaviour of printf statements while profiling on C7x

Puja Kumari

Hi,

I have noticed abnormal behaviour of printf statement in the code while printing the number of cycle taken by a function. I am able to print the value returned by a function along with the number of cycles taken by a function using profiling. But if i commented out the returned value of printf statement in the code its not printing the cycles taken by that function. Please tell me why its happening.

Thanks,

Puja Kumari

over 3 years ago

0 Varun Tripathi over 3 years ago

TI__Genius 10385 points

Hi Puja,

This looks like a duplicate thread, are you facing the same issue as mentioned in https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1086471/c7x-abnormal-behaviour-of-printf-statements-in-profiling ? If so can you try the suggestion described there and can we move our discussion to that thread?

Thanks,
Varun

0 Puja Kumari over 3 years ago in reply to Varun Tripathi

Prodigy 10 points

Hi Varun,

Thanks for the reply. Yes i am facing the same issue. i have used the container to read the value of __TSC are uint64_t (64-bit)and also used %llu formate specifier. but output is not coming correct.also tried %8d but still no use.

Thanks,

Puja

Processors

Processors forum

C7x : Abnormal behaviour of printf statements while profiling on C7x