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  1. Qt
  2. QTBUG-73117

QTableView is very laggy on scroll

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      Create a QTableView that occupies the entire size of the window, and populate it with cells such that the entire table is filled. Add a few hundred rows and maybe 40 columns or so, something reasonably resembling a typical spreadsheet.

      Scroll around on the table and you will observe significant UI lag. Resize the window to be very small and observe very good scroll and UI performance.

        1. qtbug73117.zip
          16 kB
        2. main.cpp
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        For Gerrit Dashboard: QTBUG-73117
        # Subject Branch Project Status CR V
        353233,1 WIP: Test that demonstrates failing scroll optimization dev qt/qtbase Status: ABANDONED -2 0
        373037,4 Add testcase for QWidgetRepaintManager dev qt/qtbase Status: MERGED +2 0

            vestbo Tor Arne Vestbø
            jordan jordan
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