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  1. Qt Creator
  2. QTCREATORBUG-15921

Performance regression after rebuilding QtC with Qt 5.5

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Duplicate
    • Affects Version/s: Qt Creator 3.6.0, Qt Creator 3.6.1
    • Fix Version/s: None
    • Component/s: Editors
    • Labels:
      None
    • Environment:
      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.

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              Assignee:
              davschul David Schulz
              Reporter:
              razrfalcon Evgeniy
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                Dates

                Created:
                Updated:
                Resolved:

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