Improving Compiler Performance for Large Projects

  1. Exit Flash Builder or Eclipse
  2. Open your FlashBuilder.ini or eclipse.ini file
    • Mac
      1. Right click on Adobe Flash Builder 4.app or Eclipse.app, Show Package Contents
      2. Open Contents > MacOS > Adobe Flash Builder 4.ini or eclipse.ini
    • Windows
      1. Open C:\Program Files\Adobe\Adobe Flash Builder 4\FlashBuilder.ini or <path to Eclipse>\eclipse.ini
  3. Find the maximum heap size setting, e.g. “-Xmx512m”
  4. Choose a new value for Xmx
  5. Save and restart Flash Builder or Eclipse
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