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  1. Qt
  2. QTBUG-78483

Performance drops with multi-process appmanager

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    Details

    • Platform/s:
      Linux/Wayland, Linux/X11

      Description

      The performance drops significantly when running the application using multi-process mode versus forcing single process mode.

      • Startup time is increased.
      • FPS drops to less than half.
      • CPU consumption sky-rocket. 

      It happens even on simple 3D presentations.

       

      Attached a simple project where this problem happens.

        Attachments

        1. Appman_multiprocess_app.7z
          125 kB
        2. log.txt
          72 kB
        3. multi-process_appman.jpg
          multi-process_appman.jpg
          146 kB
        4. multi-process_appman-launcher.jpg
          multi-process_appman-launcher.jpg
          251 kB
        5. multi-process.png
          multi-process.png
          34 kB
        6. qmlscene.png
          qmlscene.png
          50 kB
        7. Qt multiprocess sample app.zip
          11 kB
        8. Rectangle-Multi-process.PNG
          Rectangle-Multi-process.PNG
          95 kB
        9. Rectangle-Single-process.PNG
          Rectangle-Single-process.PNG
          80 kB
        10. single-process_appman.jpg
          single-process_appman.jpg
          180 kB
        11. single-process.png
          single-process.png
          34 kB
        12. slowman.tgz
          3 kB

          Issue Links

          For Gerrit Dashboard: QTBUG-78483
          # Subject Branch Project Status CR V

            Activity

              People

              Assignee:
              qt.team.graphics.and.multimedia Qt Graphics Team Oslo
              Reporter:
              mstambo Maycon Stamboroski
              Votes:
              1 Vote for this issue
              Watchers:
              12 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

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