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  1. Qt
  2. QTBUG-104785

[REGR:5->6] Performance regression in QLocale on macOS

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Details

    • macOS
    • 21
    • d3ede38ed (dev), 62c7b68ac (tqtc/lts-6.2), 59c686080 (dev), ecfb048b4 (6.5), 77bdb9dfb (6.5)
    • Foundation PM Prioritized, Foundation Sprint 76, Foundation Sprint 77, Foundation Sprint 78, Foundations Sprint 79

    Description

      On macOS with qt6 there is a performance regression in the method QLocale::toString(QDate).

      macOS qt5: 0.000762 msecs per iteration
      macOS qt6:  0.32 msecs per iteration

      Test code is (see also attached project):

      QLocale locale = QLocale::system();    
      QDate curDate = QDate::currentDate();    
      QBENCHMARK(locale.toString(curDate, "dd.MM.yyyy"));
      

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              vestbo Tor Arne Vestbø
              lsbts1291 Lorenzo Sinigaglia
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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              Dates

                Created:
                Updated:
                Resolved: