Modern concurrency tools including agents, futures, promises, thread pools, actors, supervisors, and more. Inspired by Erlang, Clojure, Go, JavaScript, actors, and classic concurrency patterns.

The Internet Communications Engine (Ice) provides a robust, proven platform for developing mission-critical networked applications with minimal effort. Let Ice handle all of the low-level details such as network connections, serialization, and concurrency so that you can focus on your application logic. This package includes the Ice extension for Ruby, the standard Slice definition files, and the Slice-to-Ruby compiler. You will need to install a full Ice distribution if you want to use other Ice language mappings, or Ice services such as IceGrid, IceStorm and Glacier2. We provide extensive online documentation for Ice, the Ruby extension, and the other Ice language mappings and services. Join us on our user forums if you have questions about Ice.

The Internet Communications Engine (Ice) provides a robust, proven platform for developing mission-critical networked applications with minimal effort. Let Ice handle all of the low-level details such as network connections, serialization, and concurrency so that you can focus on your application logic. This package includes the Ice extension for Ruby, the standard Slice definition files, and the Slice-to-Ruby compiler. You will need to install a full Ice distribution if you want to use other Ice language mappings, or Ice services such as IceGrid, IceStorm and Glacier2. We provide extensive online documentation for Ice, the Ruby extension, and the other Ice language mappings and services. Join us on our user forums if you have questions about Ice.

The Internet Communications Engine (Ice) provides a robust, proven platform for developing mission-critical networked applications with minimal effort. Let Ice handle all of the low-level details such as network connections, serialization, and concurrency so that you can focus on your application logic. This package includes the Ice extension for Ruby, the standard Slice definition files, and the Slice-to-Ruby compiler. You will need to install a full Ice distribution if you want to use other Ice language mappings, or Ice services such as IceGrid, IceStorm and Glacier2. We provide extensive online documentation for Ice, the Ruby extension, and the other Ice language mappings and services. Join us on our user forums if you have questions about Ice.

A concurrency framework for Ruby.

Concurrency and rate-limit throttling for Sidekiq

Agents is a framework for building Multi-Agent Systems (MAS) in Ruby. With support of COPL (Concurrency-Oriented Programming Language - thx to Celluloid) and Neural Nets (thx to ai4r). We have built Agens in order to design Multi-Agent System (MAS) to drive our Probee Open Hardware robot. We wanted to build this MAS in Ruby. Build with love in Prague.

Bootstraps in code required to take advantage of EventMachine/EM-Synchrony's concurrency enhancements for slow IO. Patches TCPSocket, which makes anything based on it EM-aware (including RestClient). Includes patch for tests. Requires Fibers (Ruby 1.9, JRuby and Rubinius in 1.9 mode)

Fine grained concurrency for Ruby

Offers concurrency tools that could also be found in the 'Concurrent Ruby'. However, all these tools will also accept core duck types to build off of.

'Go' is a language that specializes in concurrency and control flow, but some people (myself included) don't like the choice of Syntax. Not only that, but these features are something that could be useful in other projects, hence why I created 'GoRuby', bringing the Concurrency and Control Flow features of 'Go' into Ruby

Concurrency utilities including Delays, Promises, Futures, Event Loops, Thread Pools, and Synchronizing wrappers

Traffic control for ActiveJob: Concurrency/enabling/throttling

A concurrency library for Ruby inspired by Go (golang).

Dataflow concurrency for Ruby (inspired by the Oz language)

Redis based rate limit and concurrency throttling

Wrapper around httperf for stresstesting your app. Runs httperf multiple times with different concurrency levels and generates an executive summary in .csv

Fibur is a gem that gives you full concurrency during your I/O calls in Ruby 1.9.

Futuroscope is yet another simple gem that implements the Futures concurrency pattern.

LocalBus is a lightweight yet powerful pub/sub system for Ruby applications that enables decoupled communication within a single process. It offers both non-blocking I/O and thread pool processing modes, robust error handling, and fine-grained concurrency controls. Perfect for organizing event-driven architectures, handling background jobs, and managing complex workflows without external dependencies."