We also found hat Ragel parser generator (using the goto state machine) generated somewhat faster large state machines than Bison (switch-drived state machine). However, as pointed out in the SCALE talk goto works better only on big enough state machines.
Regarding computed and simple goto I'd like to reference our early article discussing the parser in standard goto https://natsys-lab.blogspot.com/2014/11/the-fast-finite-stat... . My recent talk at scale https://www.socallinuxexpo.org/scale/17x/presentations/fast-... (watch videohttps://www.youtube.com/watch?v=LQc4er8ng64&feature=youtu.be... and slides at http://www.tempesta-tech.com/research/http_str.pdf ) discusses the parser with the compiler extensions.
We also found hat Ragel parser generator (using the goto state machine) generated somewhat faster large state machines than Bison (switch-drived state machine). However, as pointed out in the SCALE talk goto works better only on big enough state machines.