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  1. Qt
  2. QTBUG-34358

Qt Graphics performance problems on Mac OS 10.9 Mavericks

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P1: Critical
    • Resolution: Done
    • Affects Version/s: 4.8.5
    • Fix Version/s: 4.8.6
    • Labels:
      None
    • Environment:
      iMac 2.66 GHz, 4GB RAM, NVIDA GeForce 9400 256 MB, OS X 10.9, OS X 10.6.8, OS X 10.8.5
    • Platform/s:
      macOS
    • Commits:
      9afc8096fb5395216cd5813fb1859ff45b087d92

      Description

      'collidingmice' project from qt sources (examples/qgraphicsview/collidingmice) has been used for testing. It looks like performance on Mac 10.9 is much worse then on previous version of Mac 10.8. Mice move much slower even though processor usage seems to be similar. Only one Mac's process called WindowServer jumps up in usage from 2% to about 22% of CPU where on Mac 10.6 there is almost no difference.

      Attached sampling of collidingmice on 10.8.5 and 10.9.

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              Assignee:
              sorvig Morten Sørvig
              Reporter:
              dakron Pawel Kurdybacha
              Votes:
              3 Vote for this issue
              Watchers:
              11 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

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