Hi,

I am drawing an underlay and overlay pixmaps and compositing the layers on to a window. I have two different codes using Qt and GTK. My system configuration is;

OS - RHEL 6.0
Graphics card - Nvidia GeForce GTX650Ti
Qt Version - 4.8.4

The composite time of the pixmaps in Qt is more than GTK.Even the CPU load is more

CPU LOAD Draw Time Composite Time Total Time

Qt-4.8.4 29 % 1.00 ms 12.410 ms 13.410 ms

GTK 1 – 2 % 0.04 ms 0.00 ms 0.04 ms



Kindly suggest the solution. How to increase the performance in Qt?

Thanks ,
Anu