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There has been surprisingly little written about how Rails is implemented. If you Google for “architecture Rails” you’ll find plenty of articles that describe Rails as a web framework based on the classic Model-View-Controller design pattern. And you’ll find plenty of links about Rail’s constituent parts – ActiveRecord, ActionController, ActionView, ActiveSupport, etc. But you’ll find precious lit
Last week I showed how to profile a Rails application using ruby-prof. The post was driven by our desire to improve MapBuzz‘s map rendering speed. Our nightly log analysis showed that rendering speed has significantly degraded over the last few weeks. Since the whole point of MapBuzz is to share maps with others, we needed to find out what was taking so long. A day of profiling and we had our answ
Yesterday I mentioned that ruby-prof now supports profiling rails applications. Lets see how that works. But a word of caution before beginning. Like all web applications, Rails apps are complex. They encompass many pieces – clients on remote machines, network connections, any number of application servers and database servers. Getting the whole ensemble to work can be tricky – let alone making it
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