Uploaded image for project: 'Qt Creator'
  1. Qt Creator
  2. QTCREATORBUG-15921

Performance regression after rebuilding QtC with Qt 5.5

    XMLWordPrintable

Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • None
    • Qt Creator 3.6.0, Qt Creator 3.6.1
    • Editors
    • None
    • Gentoo x86_64
      KDE 4.14.3
      Intel i5 3570k + GTX650Ti with Proprietary nVidia driver.

    Description

      After rebuilding Qt Creator with Qt 5.5 branch, from 5.4 - editor became very slow.
      Downgrading to 5.4 fixes a problem, so maybe it's qt+qtc bug. Other applications using 5.5 works fine.

      For example, when selecting text with mouse, selection hangs by 3-6 lines before cursor. This is example how slow everything became.

      I don't know how to properly test QtC performance - any suggestions are welcome.

      I can try to build Qt 5.6 with QtC 3.6.1, but I didn't know if it will be a clean fair/experiment.

      Attachments

        Issue Links

          is replaced by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-49172 Render-to-texture widgets leave GL-based compositing enabled forever

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

              davschul David Schulz
              razrfalcon Evgeniy
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

                  There are no open Gerrit changes