[gajjanag]

> A page will be loaded in if any part of it is useful. Given that functions will be laid out more or less randomly throughout a shared library, and programs use a randomly scattered subset of the functions, I think its safe to say that you'll get a lot of bytes read in to ram that are never used.

We have order files for this purpose so that functions are not randomly scattered: https://www.emergetools.com/blog/posts/FasterAppStartupOrder... . This technique is widely used by well known apps.