Use exmap to view the memory usage of a process in detail

Use exmap to view the memory usage of processes in detail-Linux Enterprise Application-Linux server application information. The following is a detailed description. In Linux, you can use ps or top to view the memory usage of each process.

However, when they are displayed, they all contain the memory occupied by the shared library. For example, process 1 and process 2 both use a shared library, and process 3 occupies 1 m of memory. In ps, the memory occupied by process 1 completely includes this 1 m, and process 2 is the same. In the exmap tool, it can identify the number of processes using a shared library, so the occupied memory is evenly distributed among the memory usage of each process. In the preceding example, 500 k is used for each of 1 and 2.

In addition to the shared library, it can also identify the number of processes that open a file and the memory usage of each process.

This program depends on the exmap. ko module and can be loaded with insmod during use.

Official station: http://www.berthels.co.uk/exmap