19.2. Using FastCGI
The most often criticized shortcoming of CGI is that it requires a new process to be created for every invocation. The effect on performance is significant. The lack of the capability to leave objects in memory between requests can also have a negative impact on design. The combination of these difficulties has led to the creation of FastCGI.
FastCGI is basically nothing more than a protocol definition and software implementing that protocol. Usually implemented as a web server plugin, such as an Apache module, FastCGI allows an in-process helper to intercept HTTP requests and route them via socket to a long running backend process. This has a positive effect on speed compared to the traditional forking approach. It also gives ...
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