Those of you who have attended any of my classes should remember that I mention the free software package SLAMD that can be used for load testing. The project is no longer under active development.
Connecting to the website slamd.com redirects you to a pge at unboundid.com, which contains that latest (final) version.
For a history of slamd, see Brad Diggs' discussion at http://www.thezonemanager.com/2012/01/rip-slamd-you-will-be-missed.html