how can i know the footprint of my .so library?

Question

In embedded we often listen word like low footprint library.

so how can i know the footprint of my library.so or library.a file..? how can i calculate that

is it same as the memory size of that library?

Answer 1

The only real why to find out the memory footprint is by running the executable that uses the library and see how it uses it. An executable typically uses only a subset of a library. For example a library might have a list that holds objects that are dynamically created by the library when a client pushes another item to the list. The more items that are pushed to the list, the more memory consumed by the library.

You can see how much memory a process consumes (heap and otherwise) by looking in procfs: cat /proc//mem .

" ps aux " will also give you the virtual memory size (VSZ).