Linux – find page size and number of pages of a process in linux

linuxprocessunix

Given a PID of the process running in Linux (latest kernel), how do I find out:

The number of pages it is using
The size of each page it is using (4K, 2MB or 1GB)

This is for x86-64 architecture.

Best Answer

Pagesize is system wide and can be found with the getconf command

getconf PAGESIZE

The mem_usage.py tool can provide some more detailed information on a processes memory usage.

Related Solutions

Linux – Check Environment Variables of a Running Process on Unix

cat /proc/<pid>/environ

If you want to have pid(s) of a given running executable you can, among a number of other possibilities, use pidof:

AlberT$ pidof sshd   
30690 6512

EDIT:

I totally quote Dennis Williamson and Teddy comments to achieve a more readable output. My solution is the following:

tr '\0' '\n' < /proc/<pid>/environ

Linux – the size of shared memory page

I'm not a Linux god (by any means) but typically page sizes are 4Kb. There's a pagesize command that should tell you what it is set to on your system. This gives the output of the getpagesize() function.

Best Answer

Related Solutions

Linux – Check Environment Variables of a Running Process on Unix

Linux – the size of shared memory page

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