These transformations would have to be fully customizable in order to achieve optimal target execution characteristics for a variety of different target platforms.
为了实现对于各种不同的目标平台的最优的目标执行特性，这些转换将是完全可定制的。
2
This limited support for customization results in a couple of problems: First, the execution time characteristics 15 of the generated code might not always be optimal.
这种对定制的受限支持导致了许多问题：首先，所生成代码的执行时间特性15可能不总是最优的。
3
Analysis of the data involves identifying the following application characteristics to determine various optimal values.