On 08/31/2012 02:05 AM, ext David Boosalis wrote: > I download the latest beta version of Qt 5.0 onto my Linux box (Kubuntu > 12.04) . For a beta it looks real good, but one thing I found > concerning was the performance. I mean even running the demo "samegame" > take over 98% of my cpu. Being that it is only the first beta release I > am sure there is plenty of room for optimization, but 98% of my > I5-2500 cpu seems a little excessive. I did the default configure and > build so maybe it was built without any optimization. Any thoughts on > this ?
I only see it hovering at around 7 % CPU on Ubuntu 12.04 with Intel HD Graphics 3000. It could as someone else mentioned be caused by a lack of vsync enabled in the graphics driver control panel, or in the desktop effects control panel on KDE. A lack of vsync might cause rendering to happen at a rate of many hundred fps, way above what's necessary. -- Samuel _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
