Re: [gnome-flashback] Main menu 10 times slower in Ubuntu 12.04 vs 10.04

[Alkis Georgopoulos <alkisg gmail com>]

Στις 23/01/2014 09:21 πμ, ο/η Jo-Erlend Schinstad έγραψε:
> That video seems completely unrelated to the other topic, doesn't it?

I think it proves that with the same hardware and libraries (almost, 
xorg, cairo, pango etc are the same, but gnome-panel uses gtk3 while 
mint-panel gtk2, afaik),

 * one application (gnome-panel) draws menus very slowly,
 * and another (mint panel) draws menus very fast,
with similar visual output,

so my personal conclusion is that gnome-panel (or gtk3) have some 
un-optimized code somewhere that results in drawing things many times 
slower than it's possible,
and that it'd be nice to pinpoint the problematic code and optimize it.

Thanks,
Alkis



> On 23 January 2014 08:16, Alkis Georgopoulos <alkisg gmail com
> <mailto:alkisg gmail com>> wrote:
>
>     And here's a video of the Linux Mint version that is based on Ubuntu
>     12.04:
>     http://www.youtube.com/watch?__v=cSB9EtTgC-s
>     <http://www.youtube.com/watch?v=cSB9EtTgC-s>
>
>     It's very fast. So I'm guessing it indicates that the problem is
>     specific to gnome-panel...
>
>     Guys, gnome-flashback is eventually going to die, right?
>     Is there any reason to keep proposing it as the best DE for LTSP
>     instead of proposing e.g. the mate desktop of Linux Mint, which
>     seems much faster, much more stable, and has less issues with e.g.
>     the keyboard layout, the panels disappearing etc etc?
>
>     Thanks,
>     Alkis
>
>     Στις 23/01/2014 06:43 πμ, ο/η Alkis Georgopoulos έγραψε:
>
>         A video of gnome-panel menus in Ubuntu 12.04 (1:3.4.1-0ubuntu1)
>         going
>         incredibly slowly, able to draw only about 2 menu items per second:
>         http://www.youtube.com/watch?__v=aEoe2LlrY-I
>         <http://www.youtube.com/watch?v=aEoe2LlrY-I>
>
>         Doing the same thing in Ubuntu 10.04 (1:2.30.0-0ubuntu1) shows
>         that the
>         menus there were 10 times faster:
>         http://www.youtube.com/watch?__v=LZGW2eJEHvY
>         <http://www.youtube.com/watch?v=LZGW2eJEHvY>
>
>         Those are on the same PC, Pentium 4 at 1.7 GHz with 1 GB RAM.
>         I tried several graphics cards, it's not related to the graphics
>         card
>         drivers.
>
>         So, somewhere between those 2 gnome-panel versions (maybe the
>         gtk3 move
>         was involved?) a huge regression happened, and now the menus are
>         almost
>         unusable in older PCs.
>
>         It's possible that the problem is not in gnome-panel itself but
>         in some
>         of the involved libraries, or the themes, or even the gcc
>         compilation
>         options, but does anyone have some idea what would be
>         responsible for
>         this and how to pinpoint it so that we report it to its
>         developers, _if_
>         gnome-panel is not to blame here?
>         I didn't notice (yet) any significant regression in other
>         applications.
>
>         Thanks,
>         Alkis
>
>
>     _________________________________________________
>     gnome-flashback-list mailing list
>     gnome-flashback-list gnome org <mailto:gnome-flashback-list gnome org>
>     https://mail.gnome.org/__mailman/listinfo/gnome-__flashback-list
>     <https://mail.gnome.org/mailman/listinfo/gnome-flashback-list>
>
>
>
>
> _______________________________________________
> gnome-flashback-list mailing list
> gnome-flashback-list gnome org
> https://mail.gnome.org/mailman/listinfo/gnome-flashback-list