After 10 Minutes Arapaho program getting killed

[shaikhibrahim951]

Hi,

I trained my images with tiny yolo and output is coming good but after 10 to 12 minutes in terminal I am getting killed message. I checked my memory usage using top command then I find that available memory getting reduced by some amount and at some point system is getting hanged.
I think some memory leak problem is there and program is not clearing that memory after allocation.
Note : I am working on NVIDIA TX2 board having 8GB of RAM.
Kindly provide some help regarding this issue.
Thanks in advance

[prabindh]

Please share the source code being used. Have you confirmed other components (like camera, opencv, or) do not leak memory as well ?

[shaikhibrahim951]

My camera and opencv is not resposible for memory leak. I checked it. I will share my source code if you find the problem then it will be good.

test.txt

Attached file is test.cpp in txt form

Thanks

[prabindh]

This may be platform specific behaviour. To be on the safe side, I have pushed a long pending patch for a known memory leak (f6f41a1) - please take a look at latest master.

[SinghiDivyanshu]

hey, in my case the leak problem is because of the resize function in ArapahoV2::Detect. in every frame it is leaking around 60KB of memory.

[prabindh]

@SinghiDivyanshu Which platform (ARM or x64, Windows or Linux) are you seeing this on ?

[SinghiDivyanshu]

@prabindh That problem is resolved as i change the width and height in .cfg file so that resize function is not required.

but still their is a 18KB of definite leak per frame and i'm using linux.

[prabindh]

18 kB seems small for a 3-ch image frame. Will have to check further.

[SinghiDivyanshu]

@prabindh ok thanks for the help.

[ArpitaSTugave]

Do we have a solution for this?

[prabindh]

Havent found time to deep debug, but to rule out CV itself, wrote a modified function with separate Mats for each operation. Could you please give it a try and let me know if it helps ?

• Replace the function
  bool ArapahoV2::Detect( const cv::Mat & inputMat, float thresh, float hier_thresh, int & objectCount)

, with the one in the gist below.
https://gist.github.com/prabindh/b7875557e736f75a576972de5618aecf

[SinghiDivyanshu]

@ArpitaSTugave In my case main leak (350KB memory) was due to cv::imshow() function for every frame.

[prabindh]

@SinghiDivyanshu - What version of OpenCV dll is being used in your cases ?

[SinghiDivyanshu]

openCV 3.3

[prabindh]

So I think there are 2 issues here:

1. Leak in resize - Can we have the gist I posted above tested ?
2. Leak in imshow() and cap.read() - @SinghiDivyanshu How did you resolve that leak ? Create a new image object every time ?

[SinghiDivyanshu]

leak due to resize: I change the width and height in cfg file.

and for imshow() leak: I'm not able to find any solution, so i remove that function.