Article · Wikipedia archive · Last revised Jul 12, 2026

EventMachine

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.

Last revised
Jul 12, 2026
Read time
≈ 1 min
Length
142 w
Citations
3
Source
EventMachine
Original authorFrancis Cianfrocca
ReleaseApril 13, 2006 (2006-04-13)
Stable release
1.2.71 / 12 May 2018 (12 May 2018)
Written inRuby
Operating systemMicrosoft Windows, OS X, Linux
TypeEvent-driven networking
LicenseGPL or Ruby License
Repository

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

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

See also

References

References

  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