[Mesa-users] Intel poor performance in simple OpenGL program

[Nathan Kidd]

Carlos, your question is about performance of Intel HW + Intel drivers, 
so you'll probably get a better response on Intel's list:
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-Nathan

On 10-05-04 08:50 PM, Carlos Eduardo Rodrigues Diógenes wrote:
> Hi,
>
> I run the same program in Windows with the latest drivers installed
> and the performance, visually, is practically the same. So, I can't
> uses lights with this card or the program that I'm running isn't using
> my card well, what I doubt.
>
> Best regards,
> Carlos.
>
> Em 2 de maio de 2010 20:53, Carlos Eduardo Rodrigues Diógenes
> <cerdiogenes at gmail.com>  escreveu:
>> Hi,
>>
>> I have a notebook with the following video card: Intel® GMA 4500M.
>> lspci list it as: Intel Corporation Mobile 4 Series Chipset Integrated
>> Graphics Controller.
>>
>> In my desktop I have the following card (with the proprietary driver
>> installed): GeForce 7300 LE
>>
>> The program that I'm running is an example of the book "Beginning
>> OpenGL Game Programming" that uses lights. It's very simple. It have
>> three lights configured that is used to illuminate a cube that is
>> spinning in the center of the screen. There is also a light that spin
>> around the cube. The source code, with a Makefile can be found here:
>> http://people.gnome.org/~carlosd/lights.tar.gz (43K)
>>
>> In my notebook it's take about 0.36 seconds, in average, to draw each
>> frame, while in my desktop it's take in average 0.08 seconds. This
>> time in the notebook is too long and you don't have a smooth
>> animation.
>>
>> I guess that the problem is due the source of lights, since other
>> examples that doesn't use lights runs smooth in my notebook.
>>
>> So, I want to now if this is a limitation of my notebook hardware or
>> my driver. If this is a limitation of my driver I want to help improve
>> it, so if in the response you could give me any advice in what to look
>> to understand how to implement this it will be great!
>>
>> Best regards,
>> Carlos.
>>
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