$ sudo ./ps_mem.py
 Private  +   Shared  =  RAM used       Program

148.0 KiB +  31.5 KiB = 179.5 KiB       agetty
128.0 KiB + 177.0 KiB = 305.0 KiB       inet_gethost (2)
344.0 KiB +  71.0 KiB = 415.0 KiB       epmd
360.0 KiB +  93.5 KiB = 453.5 KiB       mysqld_safe
568.0 KiB + 108.0 KiB = 676.0 KiB       auditd
692.0 KiB +  79.0 KiB = 771.0 KiB       crond
800.0 KiB +  72.5 KiB = 872.5 KiB       systemd-logind
648.0 KiB + 243.5 KiB = 891.5 KiB       su
708.0 KiB + 270.0 KiB = 978.0 KiB       login
  1.0 MiB + 111.0 KiB =   1.1 MiB       ovsdb-client
992.0 KiB + 121.5 KiB =   1.1 MiB       dbus-daemon
464.0 KiB + 692.0 KiB =   1.1 MiB       dnsmasq (3)
688.0 KiB + 679.5 KiB =   1.3 MiB       ovsdb-server
476.0 KiB +   1.1 MiB =   1.6 MiB       monitor (2)
  1.5 MiB + 500.5 KiB =   2.0 MiB       lvmetad
  2.1 MiB + 440.5 KiB =   2.6 MiB       systemd-udevd
  1.5 MiB +   1.1 MiB =   2.6 MiB       sudo (2)
  1.5 MiB +   1.9 MiB =   3.4 MiB       (sd-pam) (2)
  1.3 MiB +   2.6 MiB =   4.0 MiB       sshd (3)
  1.9 MiB +   2.4 MiB =   4.3 MiB       systemd (3)
  6.5 MiB +  64.5 KiB =   6.6 MiB       screen
  1.4 MiB +   5.7 MiB =   7.1 MiB       httpd (6)
  5.9 MiB +   1.5 MiB =   7.5 MiB       NetworkManager
  6.5 MiB +   1.1 MiB =   7.6 MiB       polkitd
  6.7 MiB +   1.8 MiB =   8.5 MiB       bash (17)
 11.8 MiB + 340.0 KiB =  12.1 MiB       neutron-rootwra
 13.9 MiB + 334.5 KiB =  14.3 MiB       dhclient
 15.0 MiB +   3.6 MiB =  18.6 MiB       libvirtd
 17.7 MiB +   1.2 MiB =  18.9 MiB       firewalld
 19.2 MiB +   3.1 MiB =  22.3 MiB       systemd-journald
 26.8 MiB + 579.5 KiB =  27.3 MiB       neutron-ns-meta
 28.0 MiB + 920.0 KiB =  28.9 MiB       ovs-vswitchd
 40.4 MiB + 177.5 KiB =  40.5 MiB       beam
 50.9 MiB +   3.4 MiB =  54.3 MiB       nova-compute
  4.7 MiB +  59.2 MiB =  63.9 MiB       glance-registry (2)
 66.1 MiB +   1.3 MiB =  67.4 MiB       nova-cert
 67.9 MiB +   1.2 MiB =  69.1 MiB       nova-scheduler
  7.4 MiB +  66.5 MiB =  73.9 MiB       glance-api (3)
 82.4 MiB +   1.2 MiB =  83.6 MiB       nova-conductor
 93.9 MiB + 297.0 KiB =  94.2 MiB       mysqld
112.3 MiB + 107.0 MiB = 219.3 MiB       nova-api (7)
286.3 MiB +  50.7 MiB = 337.0 MiB       python2.7 (10)
---------------------------------
                          1.3 GiB
=================================