system to store and display time-series data
If you know MRTG, you can think of RRDtool as a reimplementation of
MRTGs graphing and logging features.  Magnitudes faster and more
flexible than you ever thought possible

RRD is the Acronym for Round Robin Database.  RRD is a system to store
and display time-series data (i.e.  network bandwidth, machine-room
temperature, server load average).  It stores the data in a very compact
way that will not expand over time, and it presents useful graphs by
processing the data to enforce a certain data density.  It can be used
either via simple wrapper scripts (from shell or Perl) or via frontends
that poll network devices and put a friendly user interface on it

Maintainer: Dan Harnett <danh@openbsd.org>

WWW: http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/
