Performance of Qt 5.2 much slower than Qt 5.1?
I have tested Qt 5.1 and 5.2 on my Nexus 7 with the flying icons benchmark ( https://github.com/qtproject/playground-scenegraph/tree/master/benchmarks/flyingicons ) and the performance of Qt 5.2 is worse than 5.1 although it should be better or at least similar according to blog.qt.digia.com/blog/2013/09/02/new-scene-graph-renderer/.
Does anyone know what could be the problem? Can anyone reproduce this performance problem?
I have also created own tests where the same results occur - http://qt-project.org/forums/viewthread/34495/
Mailing list: http://lists.qt-project.org/pipermail/interest/2013-November/009556.html
There are some important regression fixes that have made it into Qt 5.2 RC1 (not released yet). Maybe it is fixed there. Other than that, if you want to notify Qt developers, you need to file a bug report, or ping people on IRC, or ping the mailing list (first "interest", then "development").