# 观测数据

在真实系统运行中，针对不同的业务系统会产生不同的行为。同时在开发过程中，我们也想通过某些手段观测系统运行状态是否符合预期。

这部分我们总结梳理一下目前内核中针对内存管理行为的观测手段。

从统计范围的角度来区分的话，可以分成全局数据和进程数据。全局数据统计的是整个系统范围的，而进程数据统计的是单个进程的。

[全局观测](/kernel-exploring/nei-cun-guan-li/00-index-3/02-per_process/04-pagemap.md)

[进程观测](broken://pages/zqFaqyIm19OiIdteSAhQ)


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