Dear All,
I am using Qt 4.7.3 version and my code has performance issue in Mac OS El Capitan and Sierra, QFontMetric is taking more time in above mentioned version , earlier version of OS has no issue.

Here is the sample code which is taking time

Qt Code:
  1. QFontMetrics fm(cellFont);
  2. QSize size(fm.size(0,;
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Any idea or known issue ?
Please reply.