why does KDE use a lot of Memory??

Denis Vlasenko vda at port.imtp.ilyichevsk.odessa.ua
Wed May 4 06:41:31 BST 2005

On Wednesday 04 May 2005 17:08, Jes Hall wrote:
> > You are implying that KDE does not excessively eats memory.
> >
> > I think you will change your opinion if you boot your box with mem=128M
> > kernel parameter and work with that setting for several days.
> You assume that I have a large amount of memory on my systems. I work mostly 
> on machines with KDE with 128MB and 256MB of memory. I have no complaints 
> about KDE memory usage. If I can run a mail client, multiple webbrowser 
> instances, multiple konsoles, kopete, IRC, word processor and text editor 
> under 256MB of memory without swapping out I am happy. Under 128MB it swaps a 
> little, but rarely am I more than 50MB into swap. Compare this with OSX, 
> where that workload has me 500MB into swap on a machine with ~300MB memory.

whee, I too have 128M at work and 256M at home! :)
> This 'KDE excessively eats memory' is a myth. I can see no sign of it on 

Compared to Mozilla KDE is okay. However, I am a fan of projects like
dietlibc/uclibc, qmail etc... kernel also comes to mind.

For example, my KMail has only three windows open and it uses 16004K
for malloc() only:

0825c000    16004K rwxp [heap]
40cfb000     6180K r-xp /.share/usr/app/qt-x11-free-3.2.3/lib/libqt-mt.so.3.2.3
4062f000     2612K r-xp /.share/usr/app/kde-3.1.4/lib/libkio.so.4.1.0
40013000     2584K r-xp /.share/usr/app/kde-3.1.4/lib/libkhtml.so.4.1.0
408d5000     2092K r-xp /.share/usr/app/kde-3.1.4/lib/libkdeui.so.4.1.0
08048000     2040K r-xp /.share/usr/app/kde-3.1.4/bin/kmail
40b1c000     1412K r-xp /.share/usr/app/kde-3.1.4/lib/libkdecore.so.4.1.0
416b7000     1080K r-xp /app/glibc-2.3.2/lib/libc-2.3.2.so
41498000      752K r-xp /.share/usr/X11R6-4.4.0/lib/libX11.so.6.2
4049c000      744K r-xp /.share/usr/app/kde-3.1.4/lib/libkdenetwork.so.2.0.0
418e5000      740K r-xp /.share/usr/app/gcc-3.4.3/lib/libstdc++.so.6.0.3
41a0a000      640K rwxp [ anon ]

I think it is a bit too much of heap. I can be argued into agreeing that
libqt-mt.so.3.2.3 and friends are tolerable since these are shared among
processes, but heap is not.

> machines with what most people today would consider slow cpu and a small 
> amount of memory.  So I'm afraid you're wrong in thinking that working with 
> KDE and 128MB memory will change my opinion.
> =)

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