[Development] QApplication startup is a lot slower in Qt5 than Qt4

[Jiergir Ogoerg]

Thanks, I compiled and installed from
http://download.qt-project.org/snapshots/qt/5.1/5.1.1-rc1/backups/2013-08-10-96/single/
did a reboot and tested again, I didn't notice any difference, I get about
190-220ms on Qt 5.1.1rc1 (while qt4 takes less than 100ms).

I wonder if I picked the wrong source files or if the startup time is gonna
further improve.



On Sun, Aug 11, 2013 at 3:55 AM, Thiago Macieira
<thiago.macieira at intel.com>wrote:

> On domingo, 11 de agosto de 2013 02:14:47, Jiergir Ogoerg wrote:
> > Did anyone notice that
> > QApplication app(argc, argv)
> > takes on Qt5 about 220ms (warm execution) to execute while on Qt4 only
> > about 50-75ms (warm execution)?
> > Another person confirmed these results on his computer.
> >
> > Can anyone please explain why it happens and if/when it gets fixed?
>
> There have been a few fixes post 5.1.0 to fix that. Please make sure you're
> using 5.1.1 (release branch) or 5.1.2 (stable branch).
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>   Software Architect - Intel Open Source Technology Center
>
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