Third approach to EventMachine lightweight concurrency. Runs declared methods and blocks in sequence, each in one tick. So allows calls chaining with keeping the EventMachine multiplexing facility on.

Allows you to protect the execution of a block against concurrency.

A simple set of lightweight concurrency tools.

Locker is a locking mechanism for limiting the concurrency of ruby code using the database. It presently only works with PostgreSQL.

SimpleFuture is class that simplifies coarse-grained concurrency using processes instead of threads. Each instance represents the future result of a block that is passed to it. The block is evaluated in a forked child process and its result is returned to the SimpleFuture ob...

Some tools to make concurrency in Ruby, like thread pools

Provides an extension API for MRI that enables better performance and is safe on Ruby implementations with modern garbage collection and concurrency facilities.

This is a toy tool to extend concurrency for objects.

Celluloid Benchmark realistically load tests websites. Write expressive, concise load tests in Ruby. Use Rubinius and Celluloid forpec high concurrency. Use Mechanize for a realistic (albeit non-JavaScript) browser client.

Guava is a set of core libraries that includes new collection types (such as multimap and multiset), immutable collections, a graph library, and utilities for concurrency, I/O, hashing, primitives, strings, and more!

Sidekiq concurrency limit per worker

Thimble is a ruby gem for parallelism and concurrency. It allows you to decide if you want to use separate processes, or if you want to use threads in ruby. It allows you to create stages with a thread safe queue, and break apart large chunks of work.

Libray for build multi thread/process programs.

DispatchQueueRb is a pure ruby implementation of Grand Central Dispatch concurrency primitives. It implements serial and concurrent queues, with synchronous, asynchronous, barrier and delayed dispatch methods. All queues dispatch methods support an optional dispatch groups to synchronize on compl...

Zbatery is an HTTP server for Rack applications on systems that either do not support fork(), or have no memory (nor need) to run the master/worker model. It is based on Rainbows! (which is based on Unicorn (which is based on Mongrel)) and inherits parts of each. Zbatery supports your choice of ...

Declarative concurrency for EventMachine

ElasticGraph gem that monitors OpenSearch CPU utilization to autoscale indexer lambda concurrency.