What steps will reproduce the problem?
1. Start gnome3 environment
2. Open resource manager and vim with arbitrary large file
3. Scroll with your keyboard up and down
4. Notice that cpu-consumption and ui-performance differs considerably with
the same steps reproduced in xmonad.
What is the expected output? What do you see instead?
I expect at least the same performance.
What version of the product are you using? On what operating system?
Arch linux x86_64. xmonad 0.9.2
Are you using an xmonad.hs? Please attach it and the output of "xmonad
Please provide any additional information below.
I use xmonad for quite some time. But today I was curious about gnome 3 and
what I noticed is that font rendering in gnome 3 was significantly faster
than in xmonad.
This was strange for me, because I don't even use composite managers with
my xmonad setup. I dig it a little and found, that the source of problem
may be xft, which is used by default.
Also, it's unlikely to be a hardware problem, because my setup is
I've attached a small utility which outputs large amount of text. In gnome
I have around 30% CPU usage on X while running this app. But when I run
this in xmonad X goes to 100% CPU usage. In reality there should be no load
because the application is mostly sleeping (there's a sleep of 40
milliseconds between the writes).
I've used urxvt in both cases (gnome/xmonad) for the above numbers but the
issue is around with other terminals too. I use Terminus font which is a
bitmap font. I also have an ati card with fglrx drivers (but the same issue
is around with the open source drivers too).