File _constraints of Package blender

<?xml version="1.0" encoding="UTF-8"?>
<constraints>
  <hardware>
    <disk>
      <size unit="G">20</size>
    </disk>
    <memory>
      <size unit="G">10</size>
    </memory>
    <memoryperjob>
      <size unit="M">1300</size>
    </memoryperjob>
  </hardware>
  <overwrite>
    <conditions>
      <arch>x86_64</arch>
    </conditions>
    <hardware>
      <!-- have some additional features like embree ... -->
      <memory>
        <size unit="M">16000</size>
      </memory>
    </hardware>
  </overwrite>
</constraints>