cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Archives Discussions

desperateamddeveloper
Journeyman III
‎07-10-2014 08:26 PM

OpenGL 3.3 Geometry Shader High Memory Consumption

Hi there.

I try it again, because the problem still remains.

When I use the gs, the memory consumption grows by an unknown factor.

memory_consumption_11.07.2014.pngmemory_consumption_2_11.07.2014.png

As you can see in the images, CodeXL in the first image shows a memory usage of 600 MB. ProcessExplorer in the second image shows a memory consumption of 1.3 GB, where it started at 250 MB at the blue arrow. So that is about 1 GB for my app according to PE.

So why does the GS need so much memory? 400 MB in this case.

Every time I use the GS, I can see this behavior.

So is it possible to get a comment about this issue?

Thanks,

Alex

0 Likes
1 Reply
desperateamddeveloper
Journeyman III
‎07-18-2014 09:51 AM

This memory problem is very annoying to be perfectly honest. And you know what is the funny thing about it, it only appears on my AMD graphics card. I do not have the same problem on my nVidia Card. And I am absolutely sure that it is because of the geometry shader. Because, if I do not use the GS, that "memory leak" does not happen.

I really want to know why the AMD driver(?) allocates that much amount of memory if a GS is used?

Maybe because AMD doesn't like the GS and AMD wants the people to use OpenCL instead?

I would really appreciate an answer, because this is a real problem for me and the game I am currently making.

0 Likes