Netflow is a de-facto standard of traffic analyzing and accounting in large scale networks. It is supported by expensive hardware routers. ng_netflow implements this nice feature on FreeBSD router. This allows network administrators to insert a FreeBSD boxes into their routing infrastructure. It is run in the kernel, so it is considered to carry heavy load.
netics is an extensible network statistics collector. It feeds the data stream (after it strips off the appropriate protocol headers) to modules gathering statistical data, and then displays the results at specified intervals, either in a "progress bar" mode or as raw statistics. Currently it supports two statistics, both involving entropy: LZW compressibility, and Ueli Maurer's universal statistical test.
YpFw is a frontend to ipfw and dummynet. It was developed to ease the setting and managing of ipfw rules and dummynet pipes on FreeBSD. It features a curses text interface, which allows the user to add/delete rules, update/clear rules counters, and add/delete/configure pipes. It is not meant as a replacement to ipfw; the user will need to understand ipfw and dummynet rules and syntax.
TPT is a template scripting language implemented in C++. The LibTPT parser transforms TPT templates into text. The parser, which integrates with your C++ code through a simple class API, is small and fast, focusing on functionality instead of rich feature sets. Uses include on-the-fly HTML and source code generation.
Brook for GPUs is a compiler and runtime implementation of the Brook stream programming language for modern graphics hardware. The goals for this project are to demonstrate general purpose programing on GPUs, to provide a useful tool for developers who want to run applications on GPUs, and to research the stream language programming model, streaming applications, and system implementations.