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[estama <estama@xxxxxxxxx>]

I also see exactly the same behavior with Oneiric's Compiz and Radeon HD
3200 (AMD 780G chipset's integrated graphics). Compiz is a lot
slower/laggier than it was in 11.04.

Testing with glxgears (leaving the glxgears window in its default size)
on latest Ubuntu 11.10:

Compiz is at around 33-42 FPS 
Mutter is at a stable 59.xxx FPS

Ubuntu's 11.04 Compiz was also at 59.xxx FPS (the screen's refresh is at
60 fps).

There is a chance that the fix in:

https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/763005

solves it, but i don't have a way to test it until a PPA of the fix for
Oneiric is build.

I think that this is a very important regression because for the systems
that it affects, Compiz/Unity becomes unbearably stuttery/slow.

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https://bugs.launchpad.net/bugs/861061

Title:
  compiz 3d performance regression

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