Use the pmap command in linux to display the memory image of a process

Editor to share with you the use of linux pmap command to display the memory image of the process, I hope you will learn a lot after reading this article, let's discuss it together!

The pmap command is mainly used to display the address space of the process. In addition to the specified process, if no option is added, the pmap command will display the starting address of each memory image of the specified process, the size of the virtual memory, the permissions of the process to access the address space, and memory mapping files.

Syntax format: pmap [parameters] [process ID]

Common parameters:

-x adds a title line while displaying additional process information such as the actual amount of physical memory actually used by each memory image, as well as the number of pages that have been modified but not yet written to disk. D add a title line, at the same time display the offset value of the memory-mapped file, as well as additional process information such as the primary and secondary device number of the storage device-Q is quiet, and the summary information line-V displays the version information of the command. And then quit.

Reference example

Show the address space of bash and query the overview of each memory image:

[root@linuxcool ~] # pmap 2775

Show the address space of bash for more information:

[root@linuxcool] # pmap-x 2775 after reading this article, I believe you have some understanding of using the pmap command in linux to display the memory image of the process. If you want to know more about it, welcome to follow the industry information channel. Thank you for reading!