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Liboil is a library of simple functions that are optimized for various CPUs. These functions are generally loops implementing simple algorithms, such as converting an array of N integers to floating-point numbers or multiplying and summing an array of N numbers. Clearly such functions are candidates for significant optimization using various techniques, especially by using extended instructions provided by modern CPUs (Altivec, MMX, SSE, etc.). Many multimedia applications and libraries already do similar things internally. The goal of this project is to consolidate some of the code used by various multimedia projects, and also make optimizations easier to use by a broad range of applications.

Crossroads I/O ("libxs") is a library for building scalable and high performance distributed applications. It fits between classic BSD sockets, JMS/AMQP-style message queues, and enterprise message-oriented middleware. Crossroads I/O extends the standard socket interfaces with features traditionally provided by specialised messaging middleware products, providing an abstraction of asynchronous message queues, multiple messaging patterns, message filtering (subscriptions), seamless access to multiple transport protocols, and more. Crossroads I/O provides a native C API for applications. Support for many more languages is provided by the community through language bindings which can be found at the Crossroads website.

LLnextgen is an Extended-LL(1) parser generator. It is a rewrite of the LLgen parser generator by D. Grune and C.J.H. Jacobs which is part of the Amsterdam Compiler Kit (ACK). Like all parser generators, LLnextgen takes the description of the grammar with associated actions as input, and generates a parser routine for use in compilers and other text processing programs. LLgen, and therefore LLnextgen, extends on the LL(1) class of parser generators by allowing FIRST/FIRST conflicts and FIRST/FOLLOW conflicts to be resolved with both static and dynamic conditions.

LMDBG is a collection of small tools for collecting and analyzing the logs of malloc/realloc/memalign/free function calls. Unlike many others, LMDBG does not provide any way to detect overruns of the boundaries of malloc() memory allocations, as this is not the goal. Like most other malloc debuggers, LMDBG allows detecting memory leaks and double frees. However, unlike others, LMDBG generates full stacktraces and separates the logging process from analysis, thus allowing you to analyze an application on a per-module basis.

Makepp is a drop-in replacement for GNU make which has a number of features that allow for more reliable builds and simpler build files. It supports almost all of the syntax that GNU make supports, and can be used with makefiles produced by utilities such as automake. It is called makepp (or make++) because (1) it was designed for building C++ programs; (2) its relationship to make is analogous to C++'s relationship to C. For backward compatibility, it will work with input files designed for make, but there are much better ways to do things.

Moose is an extension of the Perl 5 object system. Another object system!?!? Yes, I know there has been an explosion recently of new ways to build objects in Perl 5, most of them based on inside-out objects, and other such things. Moose is different because it is not a new object system for Perl 5, but instead an extension of the existing object system. Moose is built on top of Class::MOP, which is a metaclass system for Perl 5. This means that Moose not only makes building normal Perl 5 objects better, but it also provides the power of metaclass programming.

The ncurses software includes a SVr4 and XSI-Curses compatible curses library as well as terminfo tools including "tic", "infocmp", and "captoinfo". The library is used by other programs for text-mode support of color, multiple highlights, forms-drawing characters, automatic recognition of keypad and function-key sequences, and more. The ncurses library uses a terminfo database (included), but can be configured to use BSD's /etc/termcap file instead. This has been approved by the old 4.4BSD curses maintainer as the official 4.4BSD curses successor.

Oozie is a workflow scheduler system to manage Apache Hadoop jobs. Oozie Workflow jobs are Directed Acyclical Graphs (DAGs) of actions. Oozie Coordinator jobs are recurrent Oozie Workflow jobs triggered by time (frequency) and data availabilty. Oozie is integrated with the rest of the Hadoop stack supporting several types of Hadoop jobs out of the box (such as Java map-reduce, Streaming map-reduce, Pig, Hive, Sqoop and Distcp) as well as system specific jobs (such as Java programs and shell scripts). Oozie is a scalable, reliable and extensible system.

The OSSP xds library is generic and extensible encoding and decoding framework for the serialization of arbitrary ISO C data types. OSSP xds consists of three components: the generic encoding and decoding framework, a set of shipped engines to encode and decode values in certain existing formats (Sun RPC/XDR and XDS/XML are currently provided), and a run-time context, which is used to manage buffers, registered engines, etc. The library is designed to allow fully recursive and efficient encoding/decoding of arbitrary nested data.

This module is an interface to the C Clustering Library, a general purpose library implementing functions for hierarchical clustering (pairwise simple, complete, average, and centroid linkage), along with k-means and k-medians clustering, and 2D self-organizing maps. The library is distributed along with Cluster 3.0, an enhanced version of the famous Cluster program originally written by Michael Eisen while at Stanford University. The C clustering library was written by Michiel de Hoon. This module is a Perl wrapper for the C clustering library for cDNA microarray data, Copyright (C) 2002 Michiel Jan Laurens de Hoon.