I know I am far from the first one to ask this question, but I have a new 12.10 64-bit install, and the CPU usage for compiz is terrible. I am guessing my quad core would explain the 300% usage on top.
I have tried installing CCSM and setting Sync to VBlank off, and the strace described in another link (it locked up my machine)
I have an AMD HD7770 card (Cape Verde).
Is there any late breaking news on how to address this problem, that I may have missed?
This is the result of lspci:
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Cape Verde [Radeon HD 7700 Series] (prog-if 00 [VGA controller]) Subsystem: Dell Device 2304 Flags: bus master, fast devsel, latency 0, IRQ 46 Memory at e0000000 (64-bit, prefetchable) [size=256M] Memory at f7d00000 (64-bit, non-prefetchable) [size=256K] I/O ports at e000 [size=256] Expansion ROM at f7d40000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon Kernel modules: radeon