The way it works is that it essentially allows an application to continue processing while its I/O completes in the background.

其工作方式是，它本质上允许应用程序在后台执行 I/O 的同时继续进行处理。

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There are a number of things that you can do to improve the efficiency of this processing, such a turning trace off, minimizing log and data I/O time, and tuning the databases.

为了提高处理的效率，您可以采取很多措施，例如关闭跟踪、使日志和数据 I/O 时间最小化和调整数据库。

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And, in most data-processing routines, sequential access to a rope's characters is what's required, in which case a rope iterator can provide amortized o (1) access speed.

而且，在多数数据处理例程中，都需要对rope字符进行顺序访问，在这种情况下，rope的迭代器能够提供分摊的o(1)访问速度。

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