[ec109685]

Cloud run can execute multiple requests against the same container at the same time.

With the FaatCGI paradigm, you have to spin up separate process per simultaneous request.

[teraflop]

That's how CGI works, but FastCGI has no such restriction, at least not inherently.

Web server implementations may vary, but Apache at least allows sending many concurrent requests to a single FastCGI backend process: http://httpd.apache.org/docs/trunk/mod/mod_proxy_fcgi.html