Hi, How do I calculate the time used for executing a command in Nios II and Nios V. I was using the example in the below link but the results from Nios II and Nios V are different. https://cplusplus.com/reference/ctime/clock/ ------------------------------------------------------------------------------------------------------- clock_t t; t = clock();printf ("Calculating...\n"); ... (Anything, or you may put usleep (1000000) ... ... t = clock() - t; printf ("It took me %ld clicks (%f seconds).\n",t,((float)t)/1000000);printf ("It took me %u clicks (%x seconds).\n",t,((float)t)/1000000); ------------------------------------------------------------------------------------------------------- Nios II Nios V Could you share the way to calculate the time taken for running a piece of code in Nios V? Thanks

Hi, I'm creating C++ Hello World executable project and replace the code with the one you stated. I'm getting the results for Nios II Eclipse IDE and Nios V RiscFree IDE as below: Nios II Eclipse IDE (image): Nios V RiscFree IDE (image): Both are almost the same. RiscFree (42) seems like faster a bit than Eclipse (48). Check the attached file. Best regards, Sheng p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.

Hi @Chris039 , Do you still need further help on this thread? Let me know if you have further concern or consideration. Thanks, Best Regards, Sheng p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.

Yes. Let me check the file and I will update again .

I am not comparing the software tool. I was instantiating the Nios II processor and Nios V processor in Qsys, comparing both the time taken to execute the command.

Hi,May be can refer to this link https://levelup.gitconnected.com/8-ways-to-measure-execution-time-in-c-c-48634458d0f9 on various ways of measuring cpu execution time. Or try to reprogram the software.Thanks,Best Regards,Sheng

How to calculate the time for running the code in Nios II and Nios V?

17 Replies

ShengN_altera
Super Contributor
3 years ago
Hi,

I'm creating C++ Hello World executable project and replace the code with the one you stated. I'm getting the results for Nios II Eclipse IDE and Nios V RiscFree IDE as below:

Nios II Eclipse IDE (image):

Nios V RiscFree IDE (image):

Both are almost the same. RiscFree (42) seems like faster a bit than Eclipse (48). Check the attached file.

Best regards,

Sheng

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.
niosv.zip112 KB
ShengN_altera
Super Contributor
3 years ago
Hi @Chris039 ,

Do you still need further help on this thread?

Let me know if you have further concern or consideration.

Thanks,

Best Regards,

Sheng

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.
Chris039
Occasional Contributor
3 years ago
Yes. Let me check the file and I will update again .
Chris039
Occasional Contributor
3 years ago
I am not comparing the software tool. I was instantiating the Nios II processor and Nios V processor in Qsys, comparing both the time taken to execute the command.
ShengN_altera
Super Contributor
3 years ago
Hi,

May be can refer to this link https://levelup.gitconnected.com/8-ways-to-measure-execution-time-in-c-c-48634458d0f9 on various ways of measuring cpu execution time. Or try to reprogram the software.

Thanks,
Best Regards,
Sheng
Chris039
Occasional Contributor
3 years ago
Hi,

This is not related to reprogramming. Can you try to measure using the Nios V processor? You may generate the example design in https://www.intel.com/content/www/us/en/docs/programmable/726952/22-1-21-2-0/processor-example-design.html
ShengN_altera
Super Contributor
3 years ago
Hi @Chris039 ,

I have done testing Nios V Hello World Example Design. I'm measuring the time taken for Nios V to run C++ code with looper and usleep(1000000) (code image below) and getting the results (image below):

Time taken: 16771 clicks (0.016771s)

Then I'm measuring the time taken for Nios V to run with only usleep(1000000) without looper (code image below) and getting the results (image below):

Time taken: 994 clicks (0.000994s). Close to your results.

Installed RAM: 16.0 GB

I think the execution time measuring code and your result are both valid.

Thanks,

Best regards,

Sheng

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.
Chris039
Occasional Contributor
3 years ago
Let me try to run.
ShengN_altera
Super Contributor
3 years ago
Hi @Chris039 ,

Do you have any further update or concern?

Let me know if there's any.

Thanks,

Best regards,

Sheng

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.
- Chris039
  Occasional Contributor
  3 years ago
  Hi Sheng,
  
  I tried running the second code that you have shared.
  
  clock_t t;
  
  t = clock();
  printf ("Calculating...\n");
  
  usleep(1000000);
  printf ("Bye world...\n");
  t = clock() - t;
  
  printf ("It took me %ld clicks (%f seconds).\n",t,((float)t)/1000000);
  printf ("It took me %u clicks (%x seconds).\n",t,((float)t)/1000000);
  
  Why is my value in the bracket has negative sign and different from yours?
  - Chris039
    Occasional Contributor
    3 years ago
    If I would like to delay one second in the code? what is the value I should put in usleep ()?
ShengN_altera
Super Contributor
3 years ago
Hi,

Have you include the related library?
usleep() is in microseconds so you have to put 1000000 for 1 second.

Thanks,
Best Regards,
Sheng