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Follow these instructions, You should compare Qt to direct writes to the frame buffer.Your linux frame buffer driver might not be high performance.
After that, the frame buffer memory refreshes the screen. This might make sense to avoid flicker if you are drawing a complicated scene.When you call 'qlabel-set Text('newer text'), then the code goes and updates the frame buffer.You should be careful in comparing graphic frame works.Other possibilities are to use 'mplayer -benchmark' with an mjpeg video of you sine wave.I have an ARM 926 running at about 200MHz and video rates are approx. (note that my system has no SGX acceleration yet) Regards Brahim Hi All, I have been using Qt with Linux for last one month.
Hi All, I have been using Qt with Linux for last one month.