sylvain cresto

Sys::MemInfo - Memory informations


  use Sys::MemInfo qw(totalmem freemem totalswap);

  print "total memory: ".(&totalmem / 1024)."\n";
  print "free memory:  ".(&freemem / 1024)."\n";

  print "total swap: ".(&totalswap / 1024)."\n";
  print "free swap:  ".(Sys::MemInfo::get("freeswap") / 1024)."\n";


Sys::MemInfo return the total amount of free and used physical memory in bytes in totalmem and freemem variables.

Total amount of free and user swap memory are alse returned in totalswap and freeswap variables.

This module has been tested on Linux 2.6.10, UnixWare 7.1.2, AIX5, OpenBSD 3.8, NetBSD 2.0.2, FreBSD 5.4, HPUX11, Solaris 9, Tru64 5.1, Irix 6.5, Mac OS X 10.2 darwin and Windows XP.

It should work on FreeBSD 4 and Windows 9X/ME/NT/200X/Vista.



Return list of all accessor keys (freemem, totalmem, etc.) This is useful for dumping out all known information from the object by calling get() on all of the returned keys.


Returns free physical memory in bytes.


Returns free swap space in bytes.


Returns the value of the passed key.


Returns total physical memory size in bytes.


Returns total swap space in bytes.


Sylvain Cresto <>

Thanks to Laurent Dufour and Wilson Snyder.


Please send bug-reports to


This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA


Copyright (C) 2005, 2006 - Sylvain Cresto