Desktop memory usage

Lubos Lunak l.lunak at suse.cz
Tue Sep 12 01:21:20 CEST 2006


Dne úterý 12 září 2006 00:04 Dirk Mueller napsal(a):
> On Monday, 11. September 2006 23:43, Lubos Lunak wrote:
> > > rejected to be fixed), you should consider measuring that too. e.g.
> > > pagetable overhead, pinned inodes (inotify..) etc.
> >
> >  I don't think that should have any significant impact, especially when
> > comparing.
>
> Are you sure?

 I'm not. But if Exmap doesn't include this, I'd have to redo everything and 
I'm not sure how to measure it anyway. Doesn't seem to be worth the work just 
to possibly find out that the absolute numbers grow but the relative 
distances between WMaker, Xfce, KDE/GNOME stay about the same. Especially 
given that it took me so long to finally write all this down.

> Page tables grow quite large (by 2-3 MB here when starting 
> KDE)

 When starting what setup of KDE? 40-60MB? 5% overhead seems quite a lot.

> due to page tables not being shared (aka being an overhead 
> proportional to number of processes with shared libs). One inotify watch
> also causes about 1.5-4kb of kernel memory to be pinned, due to some very
> very stupid reasons. Other stuff (fd's) might be in a similiar size.

-- 
Lubos Lunak
KDE developer
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