[hedgehog]

CGI still makes a lot of sense when there are many applications that each only get requests at a low rate. Pack them onto servers, no RAM requirement unless actively serving a request. If the most of the requests can be served straight from static files by the web server then it's really only the write rate that matters, so even a high traffic sites could be a good match. With sendfile and kTLS the static content doesn't even need to touch user space.