How much memory is being used per program (not process)

Sometimes administrators want to know how much memory is being used by a program (and not per process). This is especially useful to calculate the memory consumption for an oracle instance. Today i found a nice script for doing so here (local mirror).

When called on an oracle database server it produces the following output:

host:~ # python mem.py
 Private  +   Shared  =  RAM used       Program
308.0 KiB +   0.0 KiB = 308.0 KiB       init
 84.0 KiB + 264.0 KiB = 348.0 KiB       zmd-bin
120.0 KiB + 284.0 KiB = 404.0 KiB       irqbalance
116.0 KiB + 404.0 KiB = 520.0 KiB       acpid
140.0 KiB + 400.0 KiB = 540.0 KiB       portmap
216.0 KiB + 428.0 KiB = 644.0 KiB       auditd
104.0 KiB + 544.0 KiB = 648.0 KiB       hald-addon-storage
364.0 KiB + 308.0 KiB = 672.0 KiB       klogd
232.0 KiB + 444.0 KiB = 676.0 KiB       wrapper
108.0 KiB + 572.0 KiB = 680.0 KiB       hald-addon-acpi
380.0 KiB + 304.0 KiB = 684.0 KiB       udevd
212.0 KiB + 508.0 KiB = 720.0 KiB       resmgrd
164.0 KiB + 592.0 KiB = 756.0 KiB       dd
424.0 KiB + 644.0 KiB =   1.0 MiB       slpd
576.0 KiB + 496.0 KiB =   1.0 MiB       dbus-daemon
332.0 KiB + 792.0 KiB =   1.1 MiB       cron (2)
584.0 KiB + 608.0 KiB =   1.2 MiB       mingetty (6)
508.0 KiB + 712.0 KiB =   1.2 MiB       nscd
384.0 KiB + 880.0 KiB =   1.2 MiB       vsftpd
276.0 KiB +   1.0 MiB =   1.3 MiB       sh
344.0 KiB +   1.1 MiB =   1.4 MiB       mysqld_safe
872.0 KiB + 660.0 KiB =   1.5 MiB       syslog-ng
856.0 KiB + 712.0 KiB =   1.5 MiB       ndo2db-3x (2)
820.0 KiB +   1.1 MiB =   1.9 MiB       powersaved
468.0 KiB +   1.6 MiB =   2.1 MiB       pickup
496.0 KiB +   1.7 MiB =   2.1 MiB       master
712.0 KiB +   1.6 MiB =   2.3 MiB       qmgr
  1.0 MiB +   1.3 MiB =   2.4 MiB       bash
720.0 KiB +   1.9 MiB =   2.6 MiB       smtpd
  2.0 MiB +   1.1 MiB =   3.0 MiB       mount.smbfs (2)
  2.3 MiB + 932.0 KiB =   3.2 MiB       hald
  1.4 MiB +   1.9 MiB =   3.3 MiB       sshd (2)
  1.4 MiB +   2.1 MiB =   3.5 MiB       smbd (2)
996.0 KiB +   2.6 MiB =   3.5 MiB       nagios
  3.1 MiB +   1.2 MiB =   4.3 MiB       cupsd
  2.9 MiB +   1.8 MiB =   4.7 MiB       ntpd
  5.7 MiB + 716.0 KiB =   6.4 MiB       perl
  7.7 MiB + 776.0 KiB =   8.5 MiB       named
  6.6 MiB +   5.9 MiB =  12.5 MiB       httpd2-prefork (11)
 11.9 MiB +   1.2 MiB =  13.1 MiB       slapd
  9.7 MiB +   4.4 MiB =  14.1 MiB       emagent
 10.1 MiB +   5.3 MiB =  15.5 MiB       tnslsnr (2)
 13.3 MiB +   4.9 MiB =  18.2 MiB       exp
 22.1 MiB + 516.0 KiB =  22.6 MiB       nmbd
103.8 MiB +   1.2 MiB = 105.0 MiB       mysqld-max
569.7 MiB +   9.4 MiB = 579.1 MiB       java (4)
  1.5 GiB +   3.4 GiB =   4.9 GiB       oracle (169)

Private  +   Shared  =  RAM used       Program
Warning: Shared memory is slightly over-estimated by this system
for each program, so totals are not reported.

You can see the running oracle programs sum up to 4.9 GB memory useage. Keep in mind several local running oracle instances are counted together here because summarization is being done by program!