which compositor (or no compositor at all) should I use to get the best performance and/or lowest system load?
I use Ubuntu MATE of course. There is the AMD APU in my PC. The until-now used
catalyst driver is no longer available for Ubuntu 16.04, the new
amdgpu driver does not support my APU, therefore I have to use the
radeon open source driver. The performance of the radeon driver is noticeably lower, the temperatures of the CPU/GPU are higher even for idle desktop with no applications running and rendering of any page in the web browser is quite demanding task for my PC. These high temperatures and whirling fan is the thing I'd like to get rid of. I was wondering if the using of the proper compositor, or not using compositor at all, could somehow lower the load for APU. I do not need any special effects like shadows or transparency in desktop UI, however there is a lot of all those CSS3 transparencies, transitions, animations, shadows etc. effects on present-day websites, where compositor might be helpful (or might be not, i don't know really). The computer is not used for gaming or for watching videos via web browser (most resource-demanding tasks). And I am not looking for some additional effects, I want to lower the system (CPU/GPU, APU) load.
Which selection of window manager would be the best? There are following choices:
- Marco (No compositor)
- Marco (Software compositor)
- Marco (Compton GPU compositor)
- Metacity (No compositor)
- Metacity (Software compositor)
- Metacity (Compton GPU compositor)
- Compiz (Advanced GPU accelerated desktop effects)