On Mon, 2009-02-09 at 14:10 -0500, Danny Piccirillo wrote: > Would it be a good idea to plan to use Metacity as the default > compositing manager for Ubuntu instead of compiz in the future? > > Compiz seems mostly unnecessary. If metacity was used, it would be > easier on the machine and work for people who don't have the hardware > for compiz. Anyone who wants all the exra effects can still install > compiz, but for almost everyone, shouldn't metacity be fine?
There are two problems here: the first is that Metacity's compositor is _slower_ and more CPU intensive than Compiz for people with decent 3d drivers (particularly nvidia users - the blob is great at 3d, not so good at 2d). For example, the alt-tab provided by Metacity's compositor is significantly slower than Compiz's, at least for me. The second is that Metacity's compositor is in no way feature-comparable with Compiz. I believe the 'scale' plugin is enabled in our default compiz setup; this gives exposé-like functionality which is not provided by Metacity, and is a _huge_ usability win. The characterisation of Compiz as just about shiny effects is wrong. The default plugin set also provides a better _window manager_ than Metacity in many ways.
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