Problems with Gedit and Battery consumption

[Steve Dierker]

Hello list,

I'am wondering about my battery consumption, when I'm using gedit.
I have a ubuntu 10.04 runing on a ThinkPad T400 and in normal browsing
and programming usage without using Gedit the power consumption is about
8-9.5W.
But if I start Gedit to write a latex document or to write a bit ruby
code the power consumption rises to nearly 20W.
But its not the gedit process with this much consumption. Its another
process called [TLB shootdown] according to powertop, which only occurs
if I start gedit.

So my question is, does anyone have similar problems or does anyone know
how to investigate the problem further?

best regards,
Steve