This uses the compiler flags -O, -O2, -O3, where each level of optimization applies higher levels of optimization techniques to squeeze more and more performance.

这使用编译器标志-O、-O2、-O3（优化级别依次增高）来进一步挖掘性能潜力。

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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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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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