需要随机访问文档特定位置的应用程序使用ucs2或utf - 32这类固定宽度的编码可能操作起来更快。

Applications that require random access to specific indexes within a document may operate more quickly when using a fixed-width encoding such as UCS2 or UTF-32.

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对于大多数操作，红黑树的执行时间为 O(log n)，而以前的调度程序通过具有固定优先级的优先级数组使用 O(1)。

The red-black tree is O(log n) in time for most operations, while the previous scheduler employed O(1), using a priority array with a fixed number of priorities.

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