Performance change from X in Fedora Core 4 to Fedora Core 5

Solerman Kaplon solerman at
Fri Jul 14 12:10:13 PDT 2006

sorry, sent repply instead of repply all

Solerman Kaplon escreveu:
> Felix Bellaby escreveu:
>> I do not think that compositing is ever going to deliver user
>> expectations if they set them so high. Supporting all existing
>> applications does mean giving them access to the framebuffer
>> environments that they were written to use. This is expensive. Giving
>> them access to those framebuffers even when the applications are
>> minimised is even more expensive. Minifying those framebuffers as
>> textures is very expensive, especially without mipmaps. Put the whole
>> lot together and you are asking much more of the GPU than it can
>> possinly deliver.
> Reading this get me confused. I'm running XGL daily (ubuntu, nvidia 
> closed drivers), I never turn my machine off, Usually load tons of 
> windows, including openoffice, xine and firefox with tons of tabs open 
> in a 1440x880 resolution with 4 virtual desktops on a old nvidia fx 
> 5200 and I'm yet to see it slow down. I actually need to try hard to 
> crash it either, and has plenty of animations, shadows and 
> translucency all around. I can't seem to get good speed with 
> fullscreen opengl applications, but I don't mind using a separate 
> server for them. E17 seems to be quite happy running over it too 
> (pitty compiz and e17 don't play well together ;), not as fast as it 
> used to get with the opengl engine, but as fast as just software.
> What am I missing?
> Solerman

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