I'm experiencing Very poor graphics performance with F17. The problem has come and gone between updates since alpha 1. With a currently updated system I'm experiencing the following:

 * Playing a video in totem (or flash for that matter) takes up most of the CPU
   as reported by top.
 * I can see windows (like xchat-gnome) redrawing as they are resized or
   refreshed.

System is really unresponsive. I'm not using software rendering:

[root@stef-desktop data]# glxinfo | grep 'OpenGL'
OpenGL vendor string: nouveau
OpenGL renderer string: Gallium 0.4 on NV92
OpenGL version string: 2.1 Mesa 8.0.1
OpenGL shading language version string: 1.20
OpenGL extensions:

Linux stef-desktop.thewalter.lan 3.3.0-0.rc7.git0.3.fc17.x86_64 #1 SMP Mon Mar 12 18:40:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

Installed Packages
Name        : xorg-x11-drv-nouveau
Arch        : x86_64
Epoch       : 1
Version     : 0.0.16
Release     : 35.20120306gitf5d1cd2.fc17

tbzatek reported seeing a similar problem, and it went away when running a custom kernel.

I feel bad for filing a bug report like this, with little concrete information. Please let me know what further information I can provide.

I'd love to work with someone on this to try and determine what the issue is before Fedora 17 is released, so that others don't run into a similar issue.

A fully updated Fedora 16 on the same hardware does not exhibit the problem.