Get process memory consumption

Question

I need a command that can get the memory consumption of a process called "job_runner_o".

Running ubuntu 10.10

Any thoughts?

Answer 1

You could use ps column selection:

ps -eo vsz,rss,comm|grep job_runner_0

will list the virtual memory size (vsz) and resident set size (rss). The the ps man page for details about these columns and the other ones available.

You should also look at the files in /proc/$pid/, especially /proc/$pid/status. They contain a lot of information. For example, try:

cat /proc/`pgrep job_runner_0`/status

(This assumes that there is only one process named job_runner_0.)

Yet another quick option is pmap, which will list detailed process mapping information.

pmap -x $(pidof job_runner_0)

for a full detailed listing (this is present in one of the /proc files also).

If there are several processes with that name, and you just want the total mem used, this can work:

pmap $(pgrep job_runner_0) | grep "^ total"

Answer 2

Execute the following on a shell:

grep VmRSS /proc/$(pidof job_runner_o)/status