Fast-CGI

Whereas CGI is a convenient method to produce dynamic document on the server side, it is not the very best choice due to a performance reason: the cgi process must be spawned everytime a request arrives, and the process invocation time is not always negligible. In my measurement, the simplest CGI written in EusLisp needs 0.3 sec to respond. In this sense, EusLisp or any other programming system with rich runtime modules is not a very good choice for CGI writing.

Since this invocation load is a common problem for all CGI programs, there is a clever work around called Fast-CGI. The basic idea of the Fast-CGI is to allow CGI processes to keep alive even one CGI request is fulfilled. The httpd process communicates with a fast-cgi process via a TCP connection.

fcgi-connection [class]

  :super   propertied-object 

  :slots 		 cookie host 

fcgi-loop &rest forms [macro]

repeats evaluation of forms each time http connection request is accepted.