[Eric] understanding eric4 slowness

[Andreas Pakulat]

On 13.04.07 19:26:28, Detlev Offenbach wrote:
> On Mittwoch, 11. April 2007, Andreas Pakulat wrote:
> > c) How do I do performance tests on eric4? I tried the profile project
> > option in eric3 but after the splash screen vanishes nothing seems to
> > happen.
> 
> Over here it took some time to show up on the first run.

I'll try that again some time.

> >
> > All in all eric3 seems to be much faster than eric4.
> 
> That is what I observed as well. However, I was not able to find the real 
> cause. All in all I have the impression, that Qt4 is slower than Qt3. I have 
> observed this with other (pure) Qt applications as well (both at work and at 
> home, both on Linux and on win32). I got the impression, that the problem is 
> worse on Linux.

Hmm, I don't think I have a Qt4 app with a larger model, however I do
have experience with KDE4 and at least their filesystem-model is pretty
fast. So I'm not so 100% sure its just the Qt4 model/view stuff, it may
still be related to how the models are implemented. Anyway, I'll try to
get some profiling data and see what it can tell me...

Andreas

-- 
In the stairway of life, you'd best take the elevator.