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Ruby Programming
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Improving Performance

You can use Ruby to write CGI programs for the Web, but, as with most CGI programs, the default configuration has to start up a new copy of Ruby with every cgi-bin page access. That's expensive in terms of machine utilization and can be painfully slow for Web surfers. The Apache Web server solves this problem by allowing loadable modules.

Typically, these modules are dynamically loaded and become part of the running Web server process---there is no need to spawn another interpreter over and over again to service requests; the Web server is the interpreter.

And so we come to mod_ruby (available from the archives), an Apache module that links a full Ruby interpreter into the Apache Web server itself. The README file included with mod_ruby provides details on how to compile and install it.

Once installed and configured, you can run Ruby scripts just like you could without mod_ruby, except that now they will come up much faster.

Ruby Programming
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