FPS independent on resolution on RS482 with r300g

[Linas]

Hello,

I have been user of open source radeon driver for quite a while now. I just want to share my observations and ask if you happen to be seeing the same behaviour.

I noticed that games have almost constant FPS which does not depend on screen resolution. For example I get 5-15 FPS in TORCS on CG track 2 when driving alone. And this is the same from 300x200 to 1400x1050 resolutions alike. However, if there are several other cars on screen, it becomes a slideshow.

Games such as Sauerbraten, and most Quake engine based games run just fine in 20-30 FPS range, which again does not really depend on resolution that much.

My question is whether this is expected behaviour, or is there something wrong? I would gladly provide more information. Just tell me what you need?

This is HP Compaq nx6325 laptop:

Linux 2.6.37-amd64
RS482 ATI Radeon XPRESS 200M 5975 (PCIE) (ChipID = 0x5975)
X.Org X Server 1.9.3.901 (1.9.4 RC 1)
OpenGL vendor string: X.Org R300 Project
OpenGL renderer string: Gallium 0.4 on ATI RS482
OpenGL version string: 2.1 Mesa 7.11-devel
OpenGL shading language version string: 1.20
GNOME desktop with Metacity not using any effects or compositing.

[pingufunkybeat]

It's not unusual, but it will vary from game to game.

The drivers are still quite CPU-bound. The card is fast enough, but is waiting for the driver much of the time.

Yes, it will be optimised away eventually, but it's not trivial.

[agd5f]

Also, for chips without vertex hardware make sure you have llvm enabled in your mesa build.

[Linas]

Thanks for the hint. I enabled LLVM and now I am experiencing framerates of unseen heights. TORCS is now perfectly playable at 1400x1050 with opponents on screen on CG track 2 with 15-20 FPS. Other games also feel much smoother. This is great.