I'm a linux noobie, I've recently installed Ubuntu 12.04 on my notebook but I'm not happy with the CPU usage. When I'm doin nothing CPU is always not below 7%, when I launch a program or open the home folder the CPU usage spikes to 100%. This is draining my battery faster.
When I'm on Windows 8 CPU is 0 to 1% when I'm using Metrotexual (a text editor with syntax highlight).
On Windows 7, CPU usage is more like that of Windows 8. I thought Windows 7 was bad....
I triple boot Ubuntu 12.04 with Windows 8 and Windows 7.