[prev in list] [next in list] [prev in thread] [next in thread] 

List:       kde-devel
Subject:    Re: KDE4 is a memory hog
From:       Carlo <brandon.ml () gmail ! com>
Date:       2009-07-17 9:56:28
Message-ID: 3262b6180907170256s467961e7l2d79794ebd17977a () mail ! gmail ! com
[Download RAW message or body]

On Fri, Jul 17, 2009 at 11:45 AM, <dunsens@web.de> wrote:
> Hi,
>
> I have now tried, stepped ahead and installed 4.2.4 on my machines (debian-
> desktop.org backports). I have to say that I am quite pleased. Since the PS3
> has a fast swap it is actually capable of running KDE4 sessions. The C3 feels
> slow, but 512mb seem enough. KWin crashes with my default settings for
> openchrome via driver though, so i had to disable the composite extension.
> The PS3 feels a bit sluggish, but it does not really get in your way. You can
> run Kopete + Firefox + amarok (1.4). This is really o.k. (No youtube of
> course, shame at adobe).
> I can also login 3 sessions with an typical work environment on the 1gb ram
> machines. I get 100-200mb swapping then, but I guess that 4.3 will improve
> that due to the nvidia issue.
>
> Things that I have seen testing with exmap/valgrind --massif:
>
> -Fonts can make a huge difference. Parts of my high memory usage seem to be
> related to using "Free Sans". I am at DejaVu Sans now and it is better.
> Dolphin shows high heap usage related to libfreetype for example. But it is
> not really gone - Konsole uses 7mb heap for a one bash tab:
> 91.09% (6,792,796B) (heap allocation functions) malloc/new/new[], --alloc-fns,
> etc.
> ->44.73% (3,335,865B) 0x5CCDCEC: (within /usr/lib/libfreetype.so.6.3.18)
> | ->44.73% (3,335,865B) 0x5CD1EBA: ft_mem_qalloc (in
> /usr/lib/libfreetype.so.6.3.18)
> |    ->44.73% (3,335,865B) 0x5CD3B72: ft_mem_alloc (in
> /usr/lib/libfreetype.so.6.3.18)
>
> -Konqueror really is a memory hog although it seems to not be. It uses more
> memory on the same three tabs/sites test setup than firefox, although exmap
> even calculates the shared lib usage where it should have a great advantage.
> This is bad since Firefox has not nearly a as good kde integration.
>
> -Kopete takes too much memory. It has a total memory of between 20-24mb here,
> having 12mb heap:
> 85.80% (10,692,856B) (heap allocation functions) malloc/new/new[], --alloc-
> fns, etc.
> ->24.69% (3,077,240B) 0x4F67DCC: qMalloc(unsigned) (in
> /usr/lib/libQtCore.so.4.4.3)
> | ->07.87% (981,434B) 0x4FB1AB8: QString::realloc(int) (in
> /usr/lib/libQtCore.so.4.4.3)
> Don't know why, but I guess that could be better... Maybe it is due to the
> emoticons being cached...
>
> -Akonadi takes round about 30 mb. I just kill it if I need to. The always on
> startup message about migrating the standard ressources gets on my nerves,
> too, btw....
>
> -Amarok really uses between 60-70 mb on kubuntu here. This does not mean much
> as heaps seem to be generally larger on kubuntu for some reason. But 70 mb is
> really bad.
>
> I am happy to be able to use KDE4 on my systems now and I am looking forward
> to use 4.3/4.4. It is really the most advanced *nix desktop imo, so thx for
> your great work!
>
> Cheers,
> whilo
>

the PS3 is slugghish because there are just 256mb of ram, and you
can't use the SPEs for general purpose, so it's just a single core PPE
with something like hyper threading
 
>> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to unsubscribe <<

[prev in list] [next in list] [prev in thread] [next in thread]