The source files in this distribution are 
        Copyright (C) 1999, Doug MacEachern, and are licensed for
        use under the same terms as Perl itself.

this package is a Perl interface to libgtop: http://ftp.gnome.org/pub/GNOME/sources/libgtop/ http://ftp.gnome.org/pub/gnome/sources/libgtop/

see also: Stas Bekman's Apache::VMonitor http://www.cpan.org/modules/by-module/Apache/