compiz takes a lot of CPU load in Ubuntu 14.04

[Bibrak]

I have recently installed Ubuntu 14.04 and compiz takes a lot of CPU load. It was actually a bug reported in the following link

https://bugs.launchpad.net/compiz/+bug/1293384

Here is my top:

USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1306 root 20 0 490744 180152 19188 R 70.5 2.2 4:27.32 Xorg
2007 xx 20 0 1801232 306892 39900 S 64.9 3.8 4:17.83 compiz
2471 xx 20 0 1152992 378808 51304 S 5.3 4.7 0:49.49 firefox

Do we have a solution for this these days?

[grahammechanical]

Are you running on llvmpipe? If not it is not the same bug. If you are running on llvmpipe then your video adapter is not capable of running Unity 3D because it cannot do 3D accelerated rendering in hardware. The CPU is having to do the work. Either that or there is a conflict with a proprietary video driver that is forcing Ubuntu to load using llvmpipe and instead of the proprietary video driver. That could be why there is such a load on the CPU.

I am using a development version of 15.04 on a machine with an Intel dual core CPU running at 2.40 GHz and 1 GB RAM. And Compiz is using less than 3% CPU and dropping to 0.3%. And never more that 10% RAM.

Regards.

[Bibrak]

So I installed the drivers and it now works fine. The system load has been reduced.