The compiler will also now allow you to define an optimization level at the function level (instead of at the file level, which was the previous default).
编译器现在还允许在函数级(而不是在之前默认的文件级)定义一个优化级别。
Reducing the length of these methods can make them more amenable to optimization by a JIT compiler.
而缩短这些方法的长度有助于使JIT编译器更易于优化它们。
With each higher level of optimization, compile time and systems resources used to compiler the source code increase as the additional amount of performance squeezed out decreases.
随着优化级别的提高，编译源代码所用的编译时间和系统资源增加，而性能的提升幅度下降。
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