[Interest] QT Webkit performance

[Allan Sandfeld Jensen]

On Monday 21 September 2015, Florin Maticu wrote:
> Hello,
> 
> I have recently compiled *qt5.6* with the configuration bellow:
> 
> *qt 5.6 configuration options*
> ./configure -v -opensource -arch arm -opengl es2 -egl -no-fontconfig
> -confirm-license -debug -verbose -device imx6 -device-option
> CROSS_COMPILE=arm-linux-gnu- -sysroot /home/fmaticu/sysroot
> -optimized-qmake -reduce-exports -gstreamer 1.0
> 
> I have a simple browser that is using qtwebkit to display an url page.
> 
> I am using Methanol benchmark tool (https://github.com/szeged/methanol) for
> testing the browser.
> 
> The browser is writing to the linux framebuffer. While running the tests I
> have noticed that the cpu load is always higher than 50%.
> 
> How can I improve the performance of the QtWebkit, in terms of cpu load?
> 
> Is there support in the qtwebkit for GPU rendering?
> 
Yes,  it should do it more or less automatically when using the QML API. If 
you are using QWebView, you should switch to QGraphicsWebView and set a 
QOpenGLWidget as the view on the hosting QGraphicsView. That way compositing
will be done using the GPU.

`Allan