> For the complete documentation index, see [llms.txt](https://s3.shizhz.me/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://s3.shizhz.me/linux-sched/concepts.md).

# 2.2 核心概念

在讨论调度的具体实现之前，我们先来看一下内核提取出来的几个重要的抽象概念，以及他们之间的关系。