Very slow 2D rendering speed on a 7300 GT GPU
In CentOS 6.3 x86 with 304.xx drivers 2d rendering speed is abysmal - scrolling of any web page in Firefox 16 web browser causes 100% CPU usage. Another problem is when you launch any OpenGL application, you cannot do anything else - screen dragging around the desktop becomes jerky and very slow. I'm NOT using any composite window manager and I have all special effects totally disabled. I run everything with stock/default settings. Are these problems known?
In CentOS 6.3 x86 with 304.xx drivers 2d rendering speed is abysmal - scrolling of any web page in Firefox 16 web browser causes 100% CPU usage.

Another problem is when you launch any OpenGL application, you cannot do anything else - screen dragging around the desktop becomes jerky and very slow.

I'm NOT using any composite window manager and I have all special effects totally disabled.

I run everything with stock/default settings.

Are these problems known?

Artem S. Tashkinov
Linux and Open Source advocate

#1
Posted 11/14/2012 10:28 PM   
read this ([url]https://devtalk.nvidia.com/default/topic/522835/linux/if-you-have-a-problem-please-read-this-first/[/url]) and attach the log, rename it as JPG

#2
Posted 11/15/2012 09:41 AM   
Does nouveau performs the same? If not, then it is a long standing bug nvidia marked as solved in the past, but emerged again: [url]https://devtalk.nvidia.com/default/topic/523281/linux/cairo-performance-regression-/[/url] It is all a matter of nvidia not supporting server side gradient acceleration. The patch i talked about in the link is just a workaround that make things more efficient by relying on the cpu. But this also means that all of the drivers that accelerates it in hardware will be penalized. That's why archlinux devs removed that patch from cairo package, and unfortunately they're doing it right; nouveau really shines without the patch. Wourkaround: If you don't want to mess things with code patching, just choose a (*VERY*) basic gtk theme.
Does nouveau performs the same? If not, then it is a long standing bug nvidia marked as solved in the past, but emerged again:
https://devtalk.nvidia.com/default/topic/523281/linux/cairo-performance-regression-/

It is all a matter of nvidia not supporting server side gradient acceleration. The patch i talked about in the link is just a workaround that make things more efficient by relying on the cpu.
But this also means that all of the drivers that accelerates it in hardware will be penalized.
That's why archlinux devs removed that patch from cairo package, and unfortunately they're doing it right; nouveau really shines without the patch.

Wourkaround:
If you don't want to mess things with code patching, just choose a (*VERY*) basic gtk theme.

#3
Posted 11/15/2012 12:55 PM   
Scroll To Top

Add Reply