Synergy of ruby and javascript code, almost completely integrates both languages, their garbage collection models, object models and so on. Effective for tight ruby-javascript integration where objects can be passed between different languages several times.

Fast and full featured CSS parser/writer for ruby

This is a hello world example for a gem with native extensions

A module implementing the fast generation of Halton sequences. The method of generation is adapted from "Fast, portable, and reliable algorithm for the calculation of Halton number" by Miroslav Kolář and Seamus F. O'Shea.

Zero-dependency implementation of HandlerSocket protocol

This gem implements the Two Plus Two forum algorithm for ranking "normal" poker hands, such that are used in Texas Hold'em for example. Support for more hand types, such as high/low hands, will be added in future versions.

11 fast hash functions for general purpose non-cryptographic use implemented originally by Arash Partow. Uses the C extension if appropriate gem is available.

11 fast hash functions for general purpose non-cryptographic use implemented originally by Arash Partow. The Ruby C extension.

Fast hash unnesting

Ruby with type.

A Capstone wrapper for Ruby.

This calculates distance between two parts of the earth via Haversine formula at the speed of C

Ruby bindings for libhbsdcontrol

A ruby wrapper to the HDF5 data library. Currently can only read HDF5 files.

This tool allows to measure a fragmentation of the Ruby VM heap.

data compression library for embedded/real-time systems

a test to build C extension gem

call from jruby to java.

Fast HTML escape utility

Faster implementation of some HexaPDF algorithms in C for still more performance