compiz team mailing list archive

[Colin D Bennett <colin@xxxxxxxxxxx>]

Another confirmation that Unity gets slow after running for a while.
Unity runs fine when I first boot up, but after a while things get
unusable:  Dragging windows to move them is nearly impossible, I
sometimes have to wait 5+ seconds for the window to react to a drag.
Switching desktops is also extremely slow.  When I hit Ctrl+Alt+Right to
switch to the right desktop, nothing happens for a few seconds, and then
it switches.

Another problem is that the “overlay scrollbars” are reacting extremely
slow as well.  Of course they are completely unusable!  In evince
(Document Viewer) and nautilus (File/Folder Browser), for instance here
is what happens:  Move mouse near the slim little scroll thumb
indicator; the overlay scrollbar widget quickly appears.  I press the
mouse button on the scrollbar widget and drag up or down a hundred
pixels or so and wait... it takes 5+ seconds for anything to happen, but
eventually the content jumps and the overlay scrollbar widget jumps
under the mouse.  If, instead of dragging the overlay scrollbar popup
thumb, I click the Up/Down arrows on it, the reaction is immediate.

I am definitely going to switch back to the “Ubuntu Classic” session and
hope it works better.  I want to like Unity, but this performance
problem is a killer.

Details
-------

OS: Ubuntu 11.04 amd64
Graphics driver: nvidia (package nvidia-173 173.14.30-0ubuntu1)
Graphics hardware: NVIDIA GPU GeForce 9600M GT (G96)  Memory: 524288 kBytes
Machine: MacBook Pro 5,1  - 4 GiB RAM

After running for a while, top (sort by memory usage) shows:
    VIRT    RES   %CPU   %MEM   COMMAND            
  1,164m   585m      0   14.9   unity-panel-ser
  1,420m   458m      2   11.6   firefox-bin        
    701m   328m      0    8.3   Xorg               
    990m   266m      0    6.8   nautilus           
    858m   210m      0    5.3   gnome-power-man    
  1,042m   172m      2    4.4   compiz             
    534m   127m      0    3.2   evince             

unity-panel-service is using over 512 MB of RAM?  What is it doing with
all my memory?!  As you can see, the system processes (unity-panel-
service, Xorg, gnome-power-manager, and compiz) are taking up over 1.2
GB of RAM alone.  This is crazy.

-- 
You received this bug notification because you are a member of compiz
packagers, which is subscribed to compiz in Ubuntu.
https://bugs.launchpad.net/bugs/764330

Title:
  Move window annoying slow with compiz