In general, you want to use caching to optimize only high volume, high frequency access of data.
总而言之，您需要使用缓存来优化数据的高容量和高访问频率。
Developers must write code to implement the data access layer, including optimizing SQL queries, caching results to optimize performance, without compromising an application's footprint.
开发人员必须编写代码来实现数据访问层，包括优化SQL查询、缓存结果以优化性能，而不会损害应用程序的规模。
The first is the most straightforward: optimize your code. There are a few things you can do here, like re-factoring and caching, that will help your apps run faster.
最直接的方法是优化你的代码：重构和缓存可以让你的程序运行更快，优化代码是最诚恳也是最最显而易见的减少等待时间的方式。
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