Hi, I've composed a simple example with a set of squares constantly looping from left to right. Unfortunately, the do not run smoothly. Jiggling at start might seem reasonable due to QML engine performing some kind of initialization (do not know its internals). However, after a while when initialization seems to be done, motion still gets freezed from time to time. As a first guess, I could think that it is the garbage collector affecting performance, but since UI structure does not change such suggestion might be irrelevant.
I see similar behavior when using qmlscene for Qt versions 5.1.1 and 5.3.2 (Ubuntu 14.04), and 5.2.1 (embedded Linux). Can this be related to "QML instantiation performance" discussion happened in the beginning of December? Maybe this is related to QTBUG-43096. But in this case it should not be reproducible on version 5.1.1. Regards, Dmitry.
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