On Mon, 10 Sep 2018 16:30:32 +0300, Denis Shienkov wrote: > but I don't see any differences using the QT_XCB_NATIVE_PAINTING=1 or > without of it. > The CPU usage still is a big ~71% in both cases.
As long as you are updating the tick labels 10 times a second I would expect, that you have a CPU load, that is unrelated to your graphic pipeline. As said several times before: try to make your coordinate system more stable or at least reduce how often you are shifting. ( But this is offtopic for this mailing list ) > How I can know that the QT_XCB_NATIVE_PAINTING are applied? painter->paintEngine()->type() should return 0, when the corresponding paint device is a QPixmap or QWidget ( not QImage ). Uwe _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
