To check if compiling a new lighter kernel can save battery runtime and be faster on my IBM T60 laptop, I created a kernel .config file and compiled a new kernel.
I currently run Ubuntu 8.1 on my laptop. Ubuntu default kernel is loaded with a lot of kernel modules which I did not need for my laptop.
Here is a gist of my crude understanding of the outcome:
1) GNOME was too heavy to notice any considerable battery runtime improvement.
2) The applications definitely load faster on GNOME. Possibly by a few microseconds as I could feel a tangible difference.
3) XFCE works brilliantly well with the new kernel. I could almost get 20 mins extra with an overall runtime of approx 2 hr 45 mins.
4) The applications load very fast in XFCE.
5) I did get faster boot, shutdown, and recovery from sleep.
I did not try to quantify any of the above. If any of you try it on your laptop do let me know about the performance. Thanks.
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