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Tornado (web server)

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Title: Tornado (web server)  
Author: World Heritage Encyclopedia
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Subject: Zope, Grok (web framework), Python Paste, Nevow, Yaws (web server)
Collection: Free Software Programmed in Python, Free Web Server Software, Python Web Application Frameworks, Web Server Software for Linux
Publisher: World Heritage Encyclopedia

Tornado (web server)

Original author(s) FriendFeed
Developer(s) Facebook, Bret Taylor
Initial release 2009 (2009)
Stable release 4.2[1] / May 26, 2015 (2015-05-26)
Development status Active
Written in Python
Operating system Cross-platform
Available in English
Type Web server
License Apache licence 2.0
Website .org.tornadowebwww

Tornado is a scalable, non-blocking web server and web application framework written in Python.[2] It was developed for use by FriendFeed; the company was acquired by Facebook in 2009 and Tornado was open-sourced soon after.[3]


  • Performance 1
  • Modules 2
  • See also 3
  • References 4
  • External links 5


Tornado is noted for its high performance. It tries to solve the C10k problem affecting other servers. The following table shows a benchmark test of Tornado against other Python-based servers:
Performance on AMD Opteron, 2.4 GHz, four cores[4]
Server Setup Requests per second
Tornado nginx, four frontends 8213
Tornado One single-threaded frontend 3353
Django Apache/mod_wsgi 2223 Apache/mod_wsgi 2066
CherryPy Standalone 785


  • An asynchronous MongoDB driver called Motor.
  • CouchDB drivers called corduroy and trombi.
  • Asynchronous driver for PostgreSQL wrapping psycopg called Momoko

See also


  1. ^
  2. ^
  3. ^
  4. ^

External links

  • Official website
  • GitHub Project Page
  • Tornado Google Group

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