bpowers / psm2

psm - rewritten in C with a reduced memory footprint

psm - simple, accurate memory reporting for Linux

psm makes it easy to see who is resident in memory, and who is significantly swapped out.

psm is based off the ideas and implementation of ps_mem.py. It requires root privileges to run. It is implemented in Rust, and since the executable is a binary it can be made setuid root so that unprivileged users can get a quick overview of the current memory situation.

installation

Classic Rust:

git clone https://github.com/bpowers/psm2
cd psm
cargo build --release
sudo make install

example output

bpowers@python-worker-01:~$ psm -filter=celery
    MB RAM    SHARED   SWAPPED	PROCESS (COUNT)
      60.6       1.1     134.2	[celeryd@notifications:MainProcess] (1)
      62.6       1.1          	[celeryd@health:MainProcess] (1)
     113.7       1.2          	[celeryd@uploads:MainProcess] (1)
     155.1       1.1          	[celeryd@triggers:MainProcess] (1)
     176.7       1.2          	[celeryd@updates:MainProcess] (1)
     502.9       1.2          	[celeryd@lookbacks:MainProcess] (1)
     623.8       1.2      28.5	[celeryd@stats:MainProcess] (1)
     671.3       1.2          	[celeryd@default:MainProcess] (1)
#   2366.7               164.7	TOTAL USED BY PROCESSES

The MB RAM column is the sum of the Pss value of each mapping in /proc/$PID/smaps for each process.

license

psm is offered under the MIT license, see LICENSE for details.