KIconLoader Optimization Idea

[Friedrich W. H. Kossebau]

Am Montag, 6. Juni 2005 21:17, schrieb Gustavo Pichorim Boiko:
> Em Sunday 05 June 2005 10:45, Luke Alan Sandell escreveu:
> > Hi, my name is Luke Sandell, and I am a student at Appalachian State
> > University looking for a project to do for Google's Summer of Coding. I
> > had an idea for optimization but I wanted to run it by this group before
> > I decide.
> >
> > My idea deals with the never-ending saga of application startup times.
> > From watching the debug messages while KDE apps are starting up, it seems
> > that a significant amount of time is spent loading icons into memory.
> > This is sad, seeing as the same icons are used across the entire KDE
> > session. It seems to me that this could be avoided by making
> > KIconLoader's internal cache session-global. Right now, KDE doesn't have
> > any classes for sharing memory between applications (KSharedPixmap seems
> > a bit overkill for 32x32 pixel icons), but one could easily be developed
> > using shm_open(). This would have the added bonus that applications would
> > not have identical copies of the same data, and thus the KApplication
> > memory footprint would decrease. Additionally, the code developed for
> > this project could be reused for sharing other types of data between KDE
> > apps to the same end.
> >
> > What do you think? If this is not a good idea, feel free to suggest
> > others.
>
> Some time ago Lubos Lunak have started an icon server implementation, in
> which the server is in charge of keeping one instance of the icon loaded,
> and all aplications that request those icons get just the X pixmap handle
> of the pixmap.
>
> I'm currently working to finish that implementation, so I can benchmark it
> to see if it is worth. If you want to give it a try, I can send you the
> patches (there are still some bugs in the implementation, but I think it is
> ok for doing initial tests)

Any news on this?

Friedrich
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