This is an interesting application which was written with the purpose of plotting nmon statistical data using RRDTOOLS.

The file, as modified with the memory fix for Linux at the following link:

nmon2rrd.c

More information in relation with the Original Development is coming from IBM:

Nmon at IBM

And NMON as a development is now hosted at sourceforge

NMON at sourceforge

This is a simple adaptation of the Original code with the purpose of plotting the Memory Status for Linux.

This was programmed using C as a base language and the Original developer is Bruce Spencer who got a few pages in relation with this development.
http://www.aixtips.com/AIXtip/nmon2rrdv1.htm
http://www.aixtips.com/AIXtip/nmon2rrdv2.htm