From: David Heinemeier Hansson <david@...>
Date: 2005-03-31T08:38:30+09:00
Subject: Re: Poor efficency of Ruby...

> Yes, I know. But what about my question? Where am I wrong? Even 
> classic cgi
> script working as a simple adapter between Apache and application 
> server
> can be very fast.

There's no connection between the CGI gateway and the ./script/server.

This is what happens on every single CGI request:

1) Require the entire Rails framework
2) Configure the Rails classes according to the environment
3) Load your application classes
4) Perform the action

After which all that hard work in 1-3 is thrown away. Running with 
FastCGI, you experience 1-3 once, and just do 4 over and over again.

When you run ./script/server, you're starting a separate webserver 
running by default on port 3000. It's a lot faster than CGI, but also a 
lot slower than FastCGI. For most people, it's just fine for 
development.
--
David Heinemeier Hansson,
http://www.basecamphq.com/   -- Web-based Project Management
http://www.rubyonrails.org/  -- Web-application framework for Ruby
http://www.loudthinking.com/ -- Broadcasting Brain