Re: [Dri-devel] driver comparison

[Ian R. <id...@us...>]

Roland Scheidegger wrote:

> Slightly OT, but here's an article comparing XiG Summit, dri cvs and the 
> ATI driver on a radeon 9000pro.
> http://homepage.hispeed.ch/rscheidegger/atilinux_oct03/ati_linux_comp_oct03.html 
> 
> 
> And to get this fully on-topic, is there a specific reason why the dri 
> driver is quite a bit slower (up to 50% in some subtests) in 
> SpecViewPerf compared to the cvs version of july? Could this be related 
> to the changes with GLX_NV_vertex_array_range, GLX_MESA_agp_offset, 
> GLX_MESA_allocate_memory (the only extensions which changed in that 
> timeframe) or must this be something else?

It is probably because some code paths were disabled in the r200 driver 
due to serious bugs.  This bugs prevented UT 2k3 from running at all.