GNOME Bugzilla – Bug 673673
Graphical performance regression when in overview
Last modified: 2012-04-07 16:13:06 UTC
I have noticed a big performance regression in the new gnome shell 3.4. I run an installed and up to date Fedora 17 Beta RC3 with git mesa3d. Everything except the overview has okay graphical performance. Dragging a window in overview is a lot slower than in Fedora 16. Gnome 3.0 was slow then Gnome 3.2 got a lot faster and now Gnome 3.4 is as slow as Gnome 3.0 or even worse. Is this a known issue?
No, it's not. Is there anything in ~/.xsession-errors that might point to a slowdown? What graphics drivers and versions of cogl/clutter/mutter/gnome-shell are you using? What about running the perf tool?
mutter 3.4.0 GNOME Shell 3.4.0 clutter-1.10.0-3.fc17.i686 cogl-1.10.0-1.fc17.i686 xorg-x11-drv-ati-6.14.4-2.20120329gitde2419e55.fc17.i686 (but same regression with 6.14.3) Mesa git (but even worse regression with default 8.0.2 r600g Fedora 16 ran really quick with git mesa but any Gnome 3.4 livecd / installation is really slow when in overview. My ~/.xsession-errors lists some errors and warnings but it's mostly Rhythmbox & Wine stuff. How do i run the performance tool? Google it?
Possibly related to bug 670636? Alex, can you try the patch attached there?
I tried Stefano's patch and it brings back the snappy Fedora 16 feel :D
(In reply to comment #4) > I tried Stefano's patch and it brings back the snappy Fedora 16 feel :D Problem is, there should be no need of it :( Since I have an ATI card, too, now the question is: is anyone experiencing this issue with something else than ATI?
I actually have another nvidia card laying around. Did you notice a performance gain on your machine using amd/ati?
I get the same regression & gain on my GeForce 210 / xorg-x11-drv-nouveau-0.0.16-35.20120306gitf5d1cd2.fc17.i686 It's like night and day.
Same thing with proprietary nvidia drivers. This doesn't seem to be a problem in the drivers.
*** This bug has been marked as a duplicate of bug 670636 ***