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+*DO NOT READ THIS FILE ON GITHUB, GUIDES ARE PUBLISHED ON http://guides.rubyonrails.org.**
+
+A Guide to Profiling Rails Applications
+=======================================
+
+This guide covers built-in mechanisms in Rails for profiling your application.
+
+After reading this guide, you will know:
+
+* Rails profiling terminology.
+* How to write benchmark tests for your application.
+* Other benchmarking approaches and plugins.
+
+--------------------------------------------------------------------------------
+
+