kwin performance gets worse and worse with every release

phanisvara das listmail at
Wed Jun 29 13:45:44 BST 2011

On Wed, 29 Jun 2011 17:14:33 +0530, Nikos Chantziaras <realnc at> wrote:

> I just installed KDE RC1.  The trend of kwin becoming slower and slower
> continues with this release.  I remember KDE 4.3 (or maybe 4.2) where
> kwin was fast and nice.  After every release, it would become slower.
> It reached a negative peak with 4.6.  Now with 4.7 RC1, kwin has become
> even more slow.  It's extremely annoying to use.
> What is happening to kwin?  It's becoming the definition of "sluggish
> GUI".  Out of every window manager I have tried, kwin is now the slowest
> of them all.

hm, perhaps other factors, like distribution, version of kernel and/or Xorg have something to do with that, as well as compiz and video card/driver. i'm running openSUSE, and at some stage i experienced very sluggish behavior, but could solve that by switching to a newer kernel & Xorg release. now, on openSUSE 11.4 with KDE 4.5 (K:D:F) i don't experience any sluggishness or exorbitant resource consumption.

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