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  1. Qt
  2. QTBUG-71778

QWidget::update() performance regression macOS

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • None
    • 5.11.2, 5.12.0 Beta 4, 5.12.0, 5.13.0 Beta 1
    • QPA
    • None
    • macOS 10.14, retina display
    • macOS

      The performance regression of QTBUG-59701 is back. The delay between calling update and the paintEvent is significantly longer again: up to 100ms in Qt 5.12 (Qt 5.10: <35ms). See QTBUG-59701 for sources of a minimalistic application to reproduce.

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            vestbo Tor Arne Vestbø
            drew Drew
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              Created:
              Updated:
              Resolved:

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