terminology - 粗粒度与细粒度

Question

粗粒度和细粒度有什么区别？

我在 Google 上搜索了这些术语，但找不到它们的含义。

Answer 1

来自Wikipedia (granularity) :

Granularity is the extent to which a system is broken down into small parts, either the system itself or its description or observation. It is the extent to which a larger entity is subdivided. For example, a yard broken into inches has finer granularity than a yard broken into feet.

Coarse-grained systems consist of fewer, larger components than fine-grained systems; a coarse-grained description of a system regards large subcomponents while a fine-grained description regards smaller components of which the larger ones are composed.