Hello,
I can't speak for the original reporter, but high cpu consumption for
any task has bothered me since the dawn of gnome-shell, and continues
through 3.12.2-1 currently. I didn't have this problem with compiz, but
mutter/gnome-shell has always been a cpu hog.
When I start a session, all is nice and fluid. But as soon as I have a
few windows, things start to fall appart:
Starting the overview is not immediate (smal but noticeable delay, maybe
one second), it is not fluid when it «zooms out», and the cpu can spike
to 50% for gnome-shell for a few seconds before it goes down again.
After that, just moving the mouse in overview (without clicking
anything) gets the cpu to 20% or more for the shell.
Just moving windows, when not in overview, gets the cpu to more than
20%, and can get it to 40% or more for brief periods. It also is a lot
less fluid than compiz was (although this is difficult to quantify).
This is not to compare the shell to compiz, just to say that my hardware
is capable of much better.
I have an intel Core 2 Duo with a Radeon Mobility HD 3400, currently
debian unstable with bits from experimental.
Don't hesitate to ask for tests. I'm not a developper but an experienced
debian user. And I can follow instructions if patches need to be tested.
Thanks,
--
Rémi
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