Slow qml animation on linux

[dmitry.aka.jok]

Hi,

I try to write a program for such a device "Uniq-POS 55.02":http://unisystem.kiev.ua/en/product/pos-tyerminaly/characteristics/pos-tyerminal-uniq-ps5502.html.
I plan to use it on Linux.
And all I test on precompiled Qt5.0.2

But faced with the following problem that occurs - under linux (I tried Ubuntu 12.4 and calculate linux (a descendant of Gentoo)) i see a very heavy load on the CPU and the slow implementation of the animation. As an example for testing I use the standard example - "interaction" and animation when I press the button takes a few seconds.
I tried Windows 7 - all works well.

I understand from the forums that the problem likely is in the support of OpenGL, but in linux I see the following:
glxinfo | grep direct:
direct rendering: Yes

(and the video card is recognized by lspci)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller (rev 02)

Can you please tell me which direction to move further

[dmitry.aka.jok]

Everything is connected to the drivers from intel and opengl. And tunning systems.

After testing on pure gentoo linux performance equaled the windows 7 - the animation runs smoothly, although the CPU load. Do I right, that this is partially software rendering?

Does it make sense to try to rebuild without qt opengl or not (and, indeed, how it can be done)?