[Mesa-dev] A simple GLES2 shader application performance slower with h/w renderer

[Kenneth Graunke]

On 05/16/2013 09:27 PM, Eric Anholt wrote:
> Divick Kishore <divick.kishore at gmail.com> writes:
>
>> Hi,
>>      I have a simple GLES2 based application which does not do much in
>> the either of the vertex and fragment shaders. It simply draws a
>> rotating spiral made from a simple triangle strip. When I try to run
>> this application using the mesa with h/w renderer, it gives me a
>> performance which is almost = 60 fps consistently.
>
> By default we sync to vblank, which for you is 60.  The software
> rasterizer lacks this feature.

The weird thing is that he said he ran it with vblank_mode=0.  Makes me 
wonder if we have a bug in our handling of that with EGL still.