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  1. Qt
  2. QTBUG-40556

framedelta value is incorrect when QSG_RENDER_TIMINGS are enabled

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Details

    • Bug
    • Resolution: Done
    • P4: Low
    • 5.4.0
    • 5.3.1
    • Quick: SceneGraph
    • None
    • 5a9f0131f8c0b7424a4d323b0f65237206be45ea

    Description

      The timer that calculates syncTime (qtdeclarative/src/quick/scenegraph/qsgthreadedrenderloop.cpp:1178) is in the wrong spot. It seems that if the scenegraph isn't updated, the thread sleeps until VSYNC, and this wait is added to the value of the timer. This means that on frames where the scenegraph isn't updated, the value reported is much too high. If I'm not mistaken, and this really is a bug, I'll gladly provide a patch.

      Attachments

        For Gerrit Dashboard: QTBUG-40556
        # Subject Branch Project Status CR V
        91534,3 Move syncTimer measurment to the correct place. 5.3 qt/qtdeclarative Status: MERGED +2 0

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            josharenson Joshua Arenson
            josharenson Joshua Arenson
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            Dates

              Created:
              Updated:
              Resolved:

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