From Wikipedia, the free encyclopedia
Original author(s)Francis Cianfrocca
Initial releaseApril 13, 2006; 17 years ago (2006-04-13)
Stable release
1.2.7[1] / 12 May 2018; 5 years ago (12 May 2018)
Written inRuby
Operating systemMicrosoft Windows, OS X, Linux
TypeEvent-driven networking
LicenseGPL or Ruby License

EventMachine is a software system designed for writing highly scalable applications for Ruby. It provides event-driven I/O using the reactor pattern. EventMachine is the most popular library for concurrent computing in the Ruby programming language.[2]

Example uses[edit]

EventMachine has been used to build a number of different libraries and frameworks in which concurrency is a performance concern. Some examples include:[3]

  • critical networked applications
  • web servers and proxies
  • email and IM production systems
  • authentication/authorization processors

See also[edit]


  1. ^ "Release 1.2.7". 12 May 2018. Retrieved 18 October 2018.
  2. ^ "The Ruby Toolbox - Concurrent Processing". Retrieved September 27, 2012.
  3. ^ "EventMachine README". GitHub. Retrieved September 27, 2012.

External links[edit]