glxgears

[Mike A. Harris]

On Sat, 1 Nov 2003, Dennis Gilmore wrote:

>Just thought i would give a report on o huge performance increase i have found 
>with glxgears.
>
>I have a fully updated fedora core system on my Laptop  a Dell Inspiron 4150 
>p4 1.8  with 512 MB Ram  and a Radeon Mobility 7500 running 
>kernel-2.6.0-0.test9.1.67  
>
>glxgears gives me the following frame rate
>4169 frames in 5.0 seconds = 833.800 FPS
>4266 frames in 5.0 seconds = 853.200 FPS
>4269 frames in 5.0 seconds = 853.800 FPS
>4271 frames in 5.0 seconds = 854.200 FPS
>4272 frames in 5.0 seconds = 854.400 FPS
>4272 frames in 5.0 seconds = 854.400 FPS
>4274 frames in 5.0 seconds = 854.800 FPS
>4271 frames in 5.0 seconds = 854.200 FPS
>
>with RH9 i was able to get just over 500 FPS  
>
>Well done to whoever is responsible for the jump in performance

My best estimate, is that this performance increase is due to 
Jakub's libGL optimizations and TLS support for Mesa libGL and 
DRI modules.  Also, libGL and all DRI modules are now compiled 
with -march=i686 and TLS support, as well as the traditional i386 
build.  The proper one is automatically detected and used at 
runtime.

There may be other performance gains here and there with other 
things, but I believe Jakub's work gives the biggest boost.

I've CC'd Jakub with your comments, in case he isn't on the list.

Take care,
TTYL


-- 
Mike A. Harris     ftp://people.redhat.com/mharris
OS Systems Engineer - XFree86 maintainer - Red Hat