MCSDK Image Processing demo runs slow

Tunc Alkanat

Hi,

I am trying to use C6678 to process video. I have started by compiling & examining & running the image processing demo included in the MCSDK module. I was able to successfully run the application but I am a little bit disappointed with the performance, I ran the demo with one of the supplied test images (the one with size 5.93MB) using 8 cores, the demo took about 24msec to complete. This performance is not good for a simple processing application here since sobel is one of the most basic filters. Am I doing something wrong? Is this code optimized? what can I do to further increase the performance? The application measures the time it takes to "process" only, not "receive data" and "process", right?

Regards,

Tunc

over 11 years ago

0 Paula Carrillo over 11 years ago

TI__Mastermind 39320 points

Hi Tunc, which MCSDK bios version are you using? also which demo flavor are you trying IPC or OpenMP? did you rebuild the .out projects? if so, did you use release configuration?

Demo version:

http://processors.wiki.ti.com/index.php/MCSDK_Image_Processing_Demonstration_Guide#Different_Versions_of_Demo

Finally, at below link you can find some performance numbers that can help you to validate your setup:

http://processors.wiki.ti.com/index.php/MCSDK_Image_Processing_Demonstration_Guide#Performance_numbers_of_the_demo

Thank you,

Paula

0 Tunc Alkanat over 11 years ago in reply to Paula Carrillo

Prodigy 210 points

MCSDK version: 2.1.26

MCSDK PDK version: 1.1.2.6

SYS/BIOS version: 6.35.1.29

I am currently working on the IPC based example and yes, I have rebuilt the project and used the release configuration.

Using 8 core and the supplied 16MB .bmp picture, processing time is 68.123msec. Seems a little bit slow compared to the results in the wiki page. However I did not change the project, I have just imported it. Wiki page also says that they have used L2 cache, but I could not figure out which part of the memory to cache. Could you please help me on that?

Thanks,

Tunc.

0 Sajesh Kumar Saran over 11 years ago in reply to Tunc Alkanat

TI__Intellectual 1840 points

Hi Tunc,

The demo is created to familirize user to some of MCSDK's multicore programming components and their integration. It is not optimized for performance. As specified in the user guide, the demo in current form is not using DMA and have non-optimized a rgb to y conversion step. One could do further optimization wrt memory and cycles to this demo.

If you want to know sobel filter and other image processing kernel's performance numbers, you can see in imglib package. It is provided in imglib_c66x_#_#_#_#/docs/IMGLib_c66x_TestReport.html.

Regards

Sajesh

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MCSDK Image Processing demo runs slow