2015年/09月/28日

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数据驱动编程

原文

本文作者通过多个阶段的编程感悟，最后推导出，数据驱动编程的好处

分析了毁灭战士源代码在继承结构上的僵化

Trick #1: globals are evil
Trick #2: object-oriented programming
Trick #3: in general, favor composition over inheritance
Trick #4: line up data in memory for huge performance gains

Even the CPU likes it when we organize our data correctly (trick #4).

CPU喜欢你正确的组织数据，因为缓存问题

The One Weird Trick: data first, not code first

in summary, design data structures to match your specific problem. Don't shoehorn a single concept into a bunch of separate, encapsulated objects.

Next, write functions that leave the smallest possible footprint on that data. If possible, write pure stateless functions.