[Interest] Performance of Qt 5.2 much slower than Qt 5.1?

[Koehne Kai]

> -----Original Message-----
> From: David V-Play [mailto:david.berger at v-play.net]
> Sent: Friday, November 08, 2013 5:02 PM
> To: Koehne Kai
> Cc: interest at qt-project.org
> Subject: Re: [Interest] Performance of Qt 5.2 much slower than Qt 5.1?
> 
> Well, I tried it with Android (Nexus 7 and Huawai) and iOS 7 (iPad/Phone) with
> Qt 5.2 and the option only works on desktops.

Sounds like a bug to me. Did the environment not get applied when lauched from Qt Creator?
 
> But it also does not work on desktops when I set the env manually with
> 
> 
> qputenv("QSG_RENDER_TIMING","1");

That ain't work, because the environment is only checked once at startup:

static bool qsg_render_timing = !qgetenv("QSG_RENDER_TIMING").isEmpty();

Regards

Kai