这些属性通常能提供诸如，惟一标识符、优化提示、文档生成……的功能。

Such attributes can provide, for example, unique identifiers, optimization hints, or documentation.

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C99引入了一个限定词restrict，它可以向编译器给出关于指针的优化提示。

C99 introduced a qualifier, restrict, which can give a compiler optimization hints about Pointers.

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该部分提供了许多关于大量性能测试的执行的提示，从硬件和操作系统配置提示到配置优化。

This section offers several tips for execution of large-volume performance tests, ranging from hardware and operating system configuration tips to configuration optimizations.

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