Ruby on Rails Optimizing Performance

Ruby on Rails is very fun, i love it, but Ruby sometimes can be slow.. So here there are some hints to speed up your Ruby on Rails web application.

Rails Performance Tips

• Common Performance Problems in Rails – Pros and con between SQLSessionStore and MemChacheStore session containers, tips on optimizing queries, and general information regarding how to avoid slow helpers.
• The Adventures of Scaling: Stage 1, Stage 2, Stage 3, Stage 4 – A detailed explanation a Rails production architecture.
• Optimizing Rails Resource Usage – A short list of top Rails optimization tips, which include the proper use of caching.
• Sustainable Performance with Ruby on Rails – A 58 page PDF presentation describing railsbench, caching, session performance, and efficient Ruby code.
• Rails performance tips – A discussion on eager loading, excluding unnecessary columns, indexing database columns, and caching.
• Top 10 Ruby on Rails performance tips – Provides great tips to optimize your ruby code and how to handle finders.
• Performance related changes in Rails 1.1 – Discussion of performance enhancements in rails 1.1.
• Rails performance and caching, Part 2 – A discussing of Rails performance using caching.
• Stefan Kaes – Rails Performance – RubyConf 2006 conference notes on the Rails Performance presentation given by Stefan Kaes.
• Stefen Kaes – Optimizing Rails – Another post on the Rails 2006 presentation by Stefan Kaes on Rails Performance.
• Rails performance with FastCGI and Apache – A blog post on performance with Apache.
• Rails Performance Tool Box – A list of tools that come in handy when optimizing a Ruby on Rails application, which include query analyzer, query trace, and mtop.
• Rails Caching Documentation – Documentation for action, page, and fragment caching.
• The effect of using Rails fragment caching – Goes over the performance boost of using fragment caching.

Rails Performance Tools

• Query Builder Plugin – Bypass the overhead of construct_finder_sql.
• QueryTrace Plugin – Helps to identify the location/caller of bad queries.
• MySQL Query Analyzer Rails Plugin – Helpful to analyze SQL queries.
• Rails Log Analyzer – Reads the Rails log files and exposes potential points of optimization.
• Railsbench – “A small collection of ruby and shell scripts which make measuring raw performance of rails apps a snap.

• Rails vs Django
• A series of Ruby on Rails (RoR) Slides – Part 2
• A series of Ruby on Rails (RoR) Slides – Part 1
• CakePHP vs Ruby on Rails
• Ruby on Rails misc resources

from http://www.tanasi.it/1072-ruby-on-rails-optimizing-performance.html

补充：http://www.dcmanges.com/blog/rails-performance-tuning-workflow