Chapter 11CGI 11 Web Server Programming with mod_perl A common criticism of CGI is that it requires forking extra processes each time a script is executed. If you have only a few hits an hour, or even a few hits a minute, this isn't a big deal. But for a high-traffic site, lots of repeatedly spawning CGI scripts can have an unfortunate effect on the machine running the web server. The CGI scripts will be slow, the web server will be slow, and other processes on the machine will slow to a crawl.